diff --git a/.idea/artifacts/learn02_war_exploded.xml b/.idea/artifacts/learn02_war_exploded.xml index e86e692..4da71e5 100644 --- a/.idea/artifacts/learn02_war_exploded.xml +++ b/.idea/artifacts/learn02_war_exploded.xml @@ -2,12 +2,19 @@ $PROJECT_DIR$/out/artifacts/learn02_war_exploded - + + + + + + + + \ No newline at end of file diff --git a/.idea/artifacts/learn02_war_exploded2.xml b/.idea/artifacts/learn02_war_exploded2.xml deleted file mode 100644 index dce5a39..0000000 --- a/.idea/artifacts/learn02_war_exploded2.xml +++ /dev/null @@ -1,20 +0,0 @@ - - - $PROJECT_DIR$/out/artifacts/learn02_war_exploded2 - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/.idea/compiler.xml b/.idea/compiler.xml index a1757ae..cfa0a0e 100644 --- a/.idea/compiler.xml +++ b/.idea/compiler.xml @@ -3,6 +3,14 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/encodings.xml b/.idea/encodings.xml index c9fda07..e0f8c39 100644 --- a/.idea/encodings.xml +++ b/.idea/encodings.xml @@ -2,6 +2,10 @@ + + + + diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml index 04ca9a9..4f05eb4 100644 --- a/.idea/inspectionProfiles/Project_Default.xml +++ b/.idea/inspectionProfiles/Project_Default.xml @@ -4,6 +4,16 @@ + + + \ No newline at end of file diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml new file mode 100644 index 0000000..5a2f139 --- /dev/null +++ b/.idea/jarRepositories.xml @@ -0,0 +1,20 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml index 8780e86..7fe267b 100644 --- a/.idea/misc.xml +++ b/.idea/misc.xml @@ -1,5 +1,19 @@ + + + + + diff --git a/learn02/learn02.iml b/learn02/learn02.iml index abfa2d4..7fdfd07 100644 --- a/learn02/learn02.iml +++ b/learn02/learn02.iml @@ -19,5 +19,12 @@ + + + + + + + \ No newline at end of file diff --git a/learn02/src/common/DBTool.java b/learn02/src/common/DBTool.java new file mode 100644 index 0000000..e421cfd --- /dev/null +++ b/learn02/src/common/DBTool.java @@ -0,0 +1,84 @@ +package common; + +import org.apache.commons.dbcp2.BasicDataSourceFactory; + +import javax.sql.DataSource; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.sql.Connection; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.util.Properties; + + +/** + * 这是一个数据库工具类，创建了一个数据库连接池 + * 需要在database.properties中配置数据库连接属性 + * @author Awin-x + */ +public class DBTool { + static DataSource ds; + static{ + Properties prop = new Properties(); + try { + InputStream database_info = DBTool.class.getClassLoader().getResourceAsStream("database.properties"); + if (database_info != null) { + prop.load(new InputStreamReader(database_info, "GBK")); + prop.list(System.out); + }else{ + throw new FileNotFoundException("database.properties file does not exist in the classpath"); + } + } catch (IOException e) { + System.out.println("数据库配置加载失败！"); + throw new RuntimeException(e); + } + try { + ds = BasicDataSourceFactory.createDataSource(prop); + } catch (Exception e) { + System.out.println("数据库连接池初始化失败"); + throw new RuntimeException(e); + } + } + + public static Connection getConnection(){ + try{ + return ds.getConnection(); + } catch (SQLException e) { + e.printStackTrace(); + return null; + } + } + + public static PreparedStatement getPreparedStatement(String sql) throws SQLException{ + //noinspection SqlSourceToSinkFlow + return ds.getConnection().prepareStatement(sql); + } + + public static void close(Connection conn, PreparedStatement ps, ResultSet rs){ + try{ + if(rs != null){ + rs.close(); + } + if(ps != null){ + ps.close(); + } + if(conn != null){ + conn.close(); + } + } catch (SQLException e) { + System.out.println("关闭失败"); + e.printStackTrace(); + } + } + + public static void close(PreparedStatement ps, ResultSet rs) throws SQLException { + close(ps.getConnection(), ps, rs); + } + + public static void close(PreparedStatement ps) throws SQLException { + close(ps.getConnection(), ps, null); + } +} diff --git a/learn02/src/controller/BaseController.java b/learn02/src/controller/BaseController.java new file mode 100644 index 0000000..f7404b2 --- /dev/null +++ b/learn02/src/controller/BaseController.java @@ -0,0 +1,25 @@ +package controller; + +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; + +public class BaseController extends HttpServlet { + protected void service(HttpServletRequest req, HttpServletResponse resp){ + resp.addHeader( "Access-Control-Allow-Origin","*"); + String uri = req.getRequestURI(); + + uri = uri.substring(uri.lastIndexOf("/")+1); + //使用反射获取方法来执行 + try { + Method method = this.getClass().getDeclaredMethod(uri, HttpServletRequest.class, HttpServletResponse.class); + method.setAccessible(true); + method.invoke(this, req, resp); + } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) { + throw new RuntimeException(e); + } + } +} diff --git a/learn02/src/controller/CourseController.java b/learn02/src/controller/CourseController.java new file mode 100644 index 0000000..eb72308 --- /dev/null +++ b/learn02/src/controller/CourseController.java @@ -0,0 +1,106 @@ +package controller; + +import dao.impl.CourseDBImpl; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; +import pojo.CourseInfo; + +import java.io.IOException; +import java.io.PrintWriter; +import java.util.ArrayList; + +@WebServlet("/courseAction/*") +public class CourseController extends BaseController { + private void list(HttpServletRequest req, HttpServletResponse resp) throws IOException { + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter out = resp.getWriter(); + int page = req.getParameter("page") == null ? 1 : Integer.parseInt(req.getParameter("page")); + int pageSize = req.getParameter("pageSize") == null ? 10 : Integer.parseInt(req.getParameter("pageSize")); + String keyword = req.getParameter("keyword"); + int courseType = req.getParameter("courseType").isEmpty() ? 0 : Integer.parseInt(req.getParameter("courseType")); + ArrayList course_list = new CourseDBImpl().getCourseInfos(page, pageSize, keyword, courseType); + StringBuilder data = new StringBuilder(); + for (CourseInfo course : course_list) { + data.append(course.toJSON()).append(","); + } + if (!data.isEmpty()) { + data.setLength(data.length() - 1); + } + String json = "{\"total\":" + new CourseDBImpl().getAllCourseInfoCount(keyword, courseType) + + ",\"data\":[" + + data + + "],\"page\":" + + page + + ",\"pageSize\":" + + pageSize + + ",\"success\":true}"; + out.print(json); + } + + private void update(HttpServletRequest req, HttpServletResponse resp) throws IOException { + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter out = resp.getWriter(); + if (req.getParameter("id") == null) { + out.println("{\"success\":false}\"}"); + return; + } + int id = Integer.parseInt(req.getParameter("id")); + CourseInfo course = new CourseDBImpl().getCourseInfoByID(id); + if (course == null) { + out.println("{\"success\":false}\"}"); + return; + } + String name = req.getParameter("name"); + int type = Integer.parseInt(req.getParameter("type")); + float credit = Float.parseFloat(req.getParameter("credit")); + int grade = Integer.parseInt(req.getParameter("grade")); + int major = Integer.parseInt(req.getParameter("major")); + String detail = req.getParameter("detail"); + course.setName(name); + course.setType(type); + course.setCredit(credit); + course.setGrade(grade); + course.setMajor(major); + course.setDetail(detail); + + if (new CourseDBImpl().updateCourseInfo(course) >= 1) { + out.println("{\"success\":true}"); + } else { + out.println("{\"success\":false}"); + } + } + + private void delete(HttpServletRequest req, HttpServletResponse resp) throws IOException { + int id = Integer.parseInt(req.getParameter("id")); + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter out = resp.getWriter(); + if (new CourseDBImpl().deleteCourseInfo(id) >= 1) { + out.print("{\"success\": true}"); + } else { + out.print("{\"success\": false}"); + } + } + + private void add(HttpServletRequest req, HttpServletResponse resp) throws IOException { + resp.setContentType("application/json;charset=UTF-8"); + PrintWriter out = resp.getWriter(); + if (req.getParameter("id") == null) { + out.println("{\"success\":false}\"}"); + return; + } + int id = Integer.parseInt(req.getParameter("id")); + CourseInfo course = new CourseInfo(); + course.setName(req.getParameter("name")); + course.setType(Integer.parseInt(req.getParameter("type"))); + course.setCredit(Float.parseFloat(req.getParameter("credit"))); + course.setGrade(Integer.parseInt(req.getParameter("grade"))); + course.setMajor(Integer.parseInt(req.getParameter("major"))); + course.setDetail(req.getParameter("detail")); + if (new CourseDBImpl().addCourseInfo(course) >= 1) { + out.println("{\"success\": true}"); + }else{ + out.println("{\"success\": false}"); + } + } +} diff --git a/learn02/src/controller/ScoreController.java b/learn02/src/controller/ScoreController.java new file mode 100644 index 0000000..9162d08 --- /dev/null +++ b/learn02/src/controller/ScoreController.java @@ -0,0 +1,13 @@ +package controller; + +import jakarta.servlet.ServletException; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; + +import java.io.IOException; + +@WebServlet("/scoreAction/*") +public class ScoreController extends BaseController { +} diff --git a/learn02/src/controller/StudentController.java b/learn02/src/controller/StudentController.java new file mode 100644 index 0000000..04cea42 --- /dev/null +++ b/learn02/src/controller/StudentController.java @@ -0,0 +1,22 @@ +package controller; + +import dao.TeacherDB; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; +import pojo.TeacherInfo; + +import java.util.ArrayList; + +@WebServlet("/studentAction/*") +public class StudentController extends BaseController { + private void list(HttpServletRequest req, HttpServletResponse resp) { + String path = req.getContextPath(); + if (req.getSession().getAttribute("user") == null){ + resp.setStatus(403); + return; + } + ArrayList teachers; + } +} diff --git a/learn02/src/controller/TeacherController.java b/learn02/src/controller/TeacherController.java new file mode 100644 index 0000000..146eaf5 --- /dev/null +++ b/learn02/src/controller/TeacherController.java @@ -0,0 +1,12 @@ +package controller; + +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; + +import java.lang.reflect.InvocationTargetException; + +@WebServlet("/teacherAction/*") +public class TeacherController extends BaseController { +} diff --git a/learn02/src/controller/UserController.java b/learn02/src/controller/UserController.java new file mode 100644 index 0000000..9993765 --- /dev/null +++ b/learn02/src/controller/UserController.java @@ -0,0 +1,43 @@ +package controller; + +import dao.impl.UserDBImpl; +import jakarta.servlet.annotation.WebServlet; +import jakarta.servlet.http.HttpServlet; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; +import pojo.UserInfo; + +import java.io.IOException; +import java.lang.reflect.InvocationTargetException; + +@WebServlet("/userAction/*") +public class UserController extends BaseController { + protected void login(HttpServletRequest req, HttpServletResponse resp) throws IOException { + System.out.println("登录"); + String path = req.getContextPath(); + if (req.getSession().getAttribute("user") != null){ + resp.sendRedirect(path+"/home.jsp"); + } + String username = req.getParameter("username"); + String password = req.getParameter("password"); + UserInfo user = new UserDBImpl().getUserByName(username); + if(user == null) { + resp.sendRedirect(path+"/login/login.jsp&loginflag=1"); + }else if (user.getPass().equals(password)) { + req.getSession().setAttribute("user", user); + resp.sendRedirect(path+"/home.jsp"); + }else{ + resp.sendRedirect(path+"/login/login.jsp&loginflag=2"); + } + } + protected void logout(HttpServletRequest req, HttpServletResponse resp) throws IOException { + System.out.println("注销"); + String username = req.getParameter("username"); + UserInfo user = (UserInfo)req.getSession().getAttribute("user"); + if(user != null) { + req.getSession().removeAttribute("user"); + } + String path = req.getContextPath(); + resp.sendRedirect(path+"/login/login.jsp"); + } +} diff --git a/learn02/src/dao/CourseDB.java b/learn02/src/dao/CourseDB.java new file mode 100644 index 0000000..8156c12 --- /dev/null +++ b/learn02/src/dao/CourseDB.java @@ -0,0 +1,65 @@ +package dao; + +import pojo.CourseInfo; + +import java.util.ArrayList; + +public interface CourseDB { + /** + * 用于列出全部课程 + * @return 返回从数据库中查询到的全部课程 + */ + ArrayList getAllCourseInfo(); + + /** + * 用于分页列出筛选课程 + * @param page 页码 + * @param pageSize 每页条数 + * @param keyword 关键词筛选，为空字符串表示不筛选 + * @param type 类型筛选，为0表示不筛选 + * @return 返回从数据库查询到的该页课程 + */ + ArrayList getCourseInfos(int page, int pageSize, String keyword, int type); + + /** + * 用于获取一个课程 + * @param id 目标课程的id + * @return 根据id从数据库查询到的课程信息 + */ + CourseInfo getCourseInfoByID(int id); + + /** + * 用于获取课程总数 + * @return 返回数据库中课程信息条数 + */ + int getAllCourseInfoCount(); + + /** + * 获取一个课程筛选结果集的总数 + * @param keyword 关键词筛选，为空字符串表示不筛选 + * @param type 类型筛选，为0表示不筛选 + * @return 课程筛选结果集的总数 + */ + int getAllCourseInfoCount(String keyword, int type); + + /** + * 用于添加课程 + * @param courseInfo 要添加的课程 + * @return 影响数据库行数，行数大于0则说明添加成功 + */ + int addCourseInfo(CourseInfo courseInfo); + + /** + * 用于更新一个课程信息 + * @param courseInfo 修改的课程信息，id不可修改，id作为修改目标查找参数 + * @return 影响的行数，行数大于0则说明更新成功 + */ + int updateCourseInfo(CourseInfo courseInfo); + + /** + * 用于删除一个课程 + * @param id 要删除的课程的id + * @return 影响的行数，行数大于0则说明更新成功 + */ + int deleteCourseInfo(int id); +} diff --git a/learn02/src/dao/ScoreDB.java b/learn02/src/dao/ScoreDB.java new file mode 100644 index 0000000..c0ef1f1 --- /dev/null +++ b/learn02/src/dao/ScoreDB.java @@ -0,0 +1,15 @@ +package dao; + +import pojo.ScoreInfo; + +import java.util.ArrayList; + +public interface ScoreDB { + ScoreInfo getScoreInfoByID(int studentID, int courseID); + ArrayList getScoreInfoByStudentID(int studentID); + ArrayList getScoreInfoByCourseID(int courseID); + int getScoreByStudentID(int studentID); + int addScoreInfo(ScoreInfo scoreInfo); + int updateScoreInfo(ScoreInfo scoreInfo); + int deleteScoreInfo(int studentID, int courseID); +} diff --git a/learn02/src/dao/StudentDB.java b/learn02/src/dao/StudentDB.java new file mode 100644 index 0000000..fb3713d --- /dev/null +++ b/learn02/src/dao/StudentDB.java @@ -0,0 +1,15 @@ +package dao; + +import pojo.StudentInfo; + +import java.util.ArrayList; + +public interface StudentDB { + ArrayList getAllStudentInfo(); + StudentInfo getStudentInfoByID(int id); + StudentInfo getStudentInfoByName(String name); + StudentInfo getStudentInfoByCode(String code); + int addStudentInfo(StudentInfo studentInfo); + int updateStudentInfo(StudentInfo studentInfo); + int deleteStudentInfo(int id); +} diff --git a/learn02/src/dao/TeacherDB.java b/learn02/src/dao/TeacherDB.java new file mode 100644 index 0000000..da99744 --- /dev/null +++ b/learn02/src/dao/TeacherDB.java @@ -0,0 +1,14 @@ +package dao; + +import pojo.TeacherInfo; + +import java.util.ArrayList; + +public interface TeacherDB { + ArrayList getAllTeacherInfo(); + TeacherInfo getTeacherInfoByID(int id); + TeacherInfo getTeacherInfoByName(String name); + int addTeacherInfo(TeacherInfo teacherInfo); + int updateTeacherInfo(TeacherInfo teacherInfo); + int deleteTeacherInfo(int id); +} diff --git a/learn02/src/dao/UserDB.java b/learn02/src/dao/UserDB.java new file mode 100644 index 0000000..456409e --- /dev/null +++ b/learn02/src/dao/UserDB.java @@ -0,0 +1,11 @@ +package dao; + +import pojo.UserInfo; + +public interface UserDB { + UserInfo getUserByName(String username); + UserInfo getUserById(int id); + int addUser(UserInfo user); + int updateUser(UserInfo user); + int deleteUser(int id); +} diff --git a/learn02/src/dao/impl/CourseDBImpl.java b/learn02/src/dao/impl/CourseDBImpl.java new file mode 100644 index 0000000..8096ed4 --- /dev/null +++ b/learn02/src/dao/impl/CourseDBImpl.java @@ -0,0 +1,177 @@ +package dao.impl; + +import common.DBTool; +import dao.CourseDB; +import pojo.CourseInfo; + +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.util.ArrayList; + +public class CourseDBImpl implements CourseDB { + + private CourseInfo fillCourseInfo(ResultSet rs) throws SQLException { + CourseInfo courseInfo = new CourseInfo(); + courseInfo.setId(rs.getInt("N_COURSE_ID")); + courseInfo.setName(rs.getString("VC_COURSE_NAME")); + courseInfo.setType(rs.getInt("N_TYPE")); + courseInfo.setCredit(rs.getFloat("F_CREDIT")); + courseInfo.setGrade(rs.getInt("N_GRADE")); + courseInfo.setMajor(rs.getInt("N_MAJOR")); + courseInfo.setDetail(rs.getString("VC_DETAIL")); + return courseInfo; + } + + @Override + public ArrayList getAllCourseInfo() { + ArrayList courseList = new ArrayList<>(); + try { + PreparedStatement ps = DBTool.getPreparedStatement("SELECT * FROM t_course"); + ResultSet rs = ps.executeQuery(); + while (rs.next()) { + courseList.add(fillCourseInfo(rs)); + } + DBTool.close(ps, rs); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return courseList; + } + + @Override + public ArrayList getCourseInfos(int page, int pageSize, String keyword, int type) { + ArrayList courseList = new ArrayList<>(); + String sql = "SELECT * FROM t_course WHERE UPPER(VC_COURSE_NAME) LIKE ? AND ? IN (N_TYPE, 0) ORDER BY N_COURSE_ID LIMIT ?, ?"; + try { + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setString(1, "%"+keyword.toUpperCase()+"%"); + ps.setInt(2, type); + ps.setInt(3, (page - 1) * pageSize); + ps.setInt(4, pageSize); + ResultSet rs = ps.executeQuery(); + while (rs.next()) { + courseList.add(fillCourseInfo(rs)); + } + DBTool.close(ps, rs); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return courseList; + } + + @Override + public CourseInfo getCourseInfoByID(int id) { + CourseInfo courseInfo = null; + try { + PreparedStatement ps = DBTool.getPreparedStatement("select * from t_course WHERE N_COURSE_ID = ?"); + ps.setInt(1, id); + ResultSet rs = ps.executeQuery(); + while (rs.next()) { + String name = rs.getString("VC_COURSE_NAME"); + int type = rs.getInt("N_TYPE"); + float credits = rs.getFloat("F_CREDIT"); + int grade = rs.getInt("N_GRADE"); + int major = rs.getInt("N_MAJOR"); + String detail = rs.getString("VC_DETAIL"); + courseInfo = new CourseInfo(id, name, type, credits, grade, major, detail); + } + DBTool.close(ps, rs); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return courseInfo; + } + + @Override + public int getAllCourseInfoCount() { + int count = 0; + String sql = "SELECT COUNT(*) FROM t_course"; + try { + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ResultSet rs = ps.executeQuery(); + if (rs.next()) { + count = rs.getInt(1); + } + DBTool.close(ps, rs); + } catch (SQLException e) { + return -1; + } + return count; + } + + @Override + public int getAllCourseInfoCount(String keyword, int type) { + int count = 0; + String sql = "SELECT COUNT(*) FROM t_course WHERE UPPER(VC_COURSE_NAME) LIKE ? AND ? IN (N_TYPE, 0)"; + try { + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setString(1, "%"+keyword.toUpperCase()+"%"); + ps.setInt(2, type); + ResultSet rs = ps.executeQuery(); + if (rs.next()) { + count = rs.getInt(1); + } + DBTool.close(ps, rs); + } catch (SQLException e) { + return -1; + } + return count; + } + + @Override + public int addCourseInfo(CourseInfo courseInfo) { + int lines; + try { + String sql = "INSERT INTO t_course (VC_COURSE_NAME, N_TYPE, F_CREDIT, N_GRADE, N_MAJOR, VC_DETAIL) VALUES(?, ?, ?, ?, ?, ?)"; + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setString(1, courseInfo.getName()); + ps.setInt(2, courseInfo.getType()); + ps.setFloat(3, courseInfo.getCredit()); + ps.setInt(4, courseInfo.getGrade()); + ps.setInt(5, courseInfo.getMajor()); + ps.setString(6, courseInfo.getDetail()); + lines = ps.executeUpdate(); + DBTool.close(ps); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return lines; + } + + @Override + public int updateCourseInfo(CourseInfo courseInfo) { + int lines; + try { + PreparedStatement ps = DBTool.getPreparedStatement("UPDATE t_course SET VC_COURSE_NAME = ?," + + " N_TYPE = ?, F_CREDIT = ?, N_GRADE = ?, N_MAJOR = ?, VC_DETAIL = ? WHERE N_COURSE_ID = ?"); + ps.setString(1, courseInfo.getName()); + ps.setInt(2, courseInfo.getType()); + ps.setFloat(3, courseInfo.getCredit()); + ps.setInt(4, courseInfo.getGrade()); + ps.setInt(5, courseInfo.getMajor()); + ps.setString(6, courseInfo.getDetail()); + ps.setInt(7, courseInfo.getId()); + lines = ps.executeUpdate(); + DBTool.close(ps); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return lines; + } + + @Override + public int deleteCourseInfo(int id) { + int lines; + try { + String sql = "DELETE FROM t_course WHERE N_COURSE_ID = ?"; + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setInt(1, id); + lines = ps.executeUpdate(); + DBTool.close(ps); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return lines; + } +} diff --git a/learn02/src/dao/impl/TeacherDBImpl.java b/learn02/src/dao/impl/TeacherDBImpl.java new file mode 100644 index 0000000..730fc7b --- /dev/null +++ b/learn02/src/dao/impl/TeacherDBImpl.java @@ -0,0 +1,60 @@ +package dao.impl; + +import common.DBTool; +import dao.TeacherDB; +import pojo.TeacherInfo; + +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.util.ArrayList; + +public class TeacherDBImpl implements TeacherDB { + @Override + public ArrayList getAllTeacherInfo() { + ArrayList teacherInfos = new ArrayList<>(); + String sql = "select * from t_teacher"; + try{ + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ResultSet rs = ps.executeQuery(); + while(rs.next()){ + TeacherInfo teacherInfo = new TeacherInfo(); + teacherInfo.setId(rs.getInt("N_TEACHER_ID")); + teacherInfo.setName(rs.getString("VC_TEACHER_NAME")); + teacherInfo.setSex(rs.getInt("N_SEX")); + teacherInfo.setBrith(rs.getString("VC_BIRTH")); + teacherInfo.setEduc(rs.getInt("N_EDUC")); + teacherInfo.setTitle(rs.getInt("N_TITLE")); + teacherInfos.add(teacherInfo); + } + } catch (SQLException e) { + throw new RuntimeException(e); + } + return teacherInfos; + } + + @Override + public TeacherInfo getTeacherInfoByID(int id) { + return null; + } + + @Override + public TeacherInfo getTeacherInfoByName(String name) { + return null; + } + + @Override + public int addTeacherInfo(TeacherInfo teacherInfo) { + return 0; + } + + @Override + public int updateTeacherInfo(TeacherInfo teacherInfo) { + return 0; + } + + @Override + public int deleteTeacherInfo(int id) { + return 0; + } +} diff --git a/learn02/src/dao/impl/UserDBImpl.java b/learn02/src/dao/impl/UserDBImpl.java new file mode 100644 index 0000000..a394885 --- /dev/null +++ b/learn02/src/dao/impl/UserDBImpl.java @@ -0,0 +1,103 @@ +package dao.impl; + +import common.DBTool; +import dao.UserDB; +import pojo.UserInfo; + +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; + +public class UserDBImpl implements UserDB { + + @Override + public UserInfo getUserByName(String username) { + UserInfo u = new UserInfo(); + ResultSet rs = null; + try{ + String sql = "select * from t_user where VC_LOGIN_NAME = ?"; + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setString(1, username); + rs = ps.executeQuery(); + if(rs.next()) { + u.setId(rs.getInt("N_USER_ID")); + u.setName(rs.getString("VC_LOGIN_NAME")); + u.setPass(rs.getString("VC_PASSWORD")); + }else{ + u = null; + } + DBTool.close(ps, rs); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return u; + } + + @Override + public UserInfo getUserById(int id) { + UserInfo u = new UserInfo(); + ResultSet rs = null; + try{ + String sql = "select * from t_user where N_USER_ID = ?"; + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setInt(1, id); + rs = ps.executeQuery(); + if(rs.next()) { + u.setId(rs.getInt("N_USER_ID")); + u.setName(rs.getString("VC_LOGIN_NAME")); + u.setPass(rs.getString("VC_PASSWORD")); + }else{ + u = null; + } + DBTool.close(ps, rs); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return u; + } + + @Override + public int addUser(UserInfo user) { + int lines = 0; + String sql = "INSERT INTO t_user (VC_LOGIN_NAME, VC_PASSWORD) VALUES (?, ?)"; + try{ + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setString(1, user.getName()); + ps.setString(2, user.getPass()); + lines = ps.executeUpdate(); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return lines; + } + + @Override + public int updateUser(UserInfo user) { + int lines = 0; + String sql = "UPDATE t_user SET VC_PASSWORD = ?,VC_LOGIN_NAME = ? WHERE N_USER_ID = ?"; + try{ + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setString(1, user.getPass()); + ps.setString(2, user.getName()); + ps.setInt(3, user.getId()); + lines = ps.executeUpdate(); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return lines; + } + + @Override + public int deleteUser(int id) { + int lines = 0; + String sql = "DELETE FROM t_user WHERE N_USER_ID = ?"; + try{ + PreparedStatement ps = DBTool.getPreparedStatement(sql); + ps.setInt(1, id); + lines = ps.executeUpdate(); + } catch (SQLException e) { + throw new RuntimeException(e); + } + return 0; + } +} diff --git a/learn02/src/database.properties b/learn02/src/database.properties new file mode 100644 index 0000000..8dcbcdd --- /dev/null +++ b/learn02/src/database.properties @@ -0,0 +1,41 @@ +#-------------------------------------------------------------------------------------------------- +#DriverClassName=com.mysql.cj.jdbc.Driver +#url=jdbc:mysql://10.19.38.253:3306/chat?useUnicode=true&characterEncoding=utf-8&useSSL=true +#username=admin +#password=1227496003131313xY +#-------------------------------------------------------------------------------------------------- +driverClassName=org.sqlite.JDBC +url=jdbc:sqlite:F:\\Work_Area\\desk\\database\\学习\\java测试数据库\\db_student.db +#-------------------------------------------------------------------------------------------------- + +defaultAutoCommit=true + +defaultReadOnly=false + +initialSize=10 + +maxActive=20 + +maxIdle=20 + +minIdle=5 + +maxWait=10000 + +testOnBorrow=true + +testOnReturn=false + +validationQuery=select 1 + +validationQueryTimeout=1 + +testWhileIdle=false + +timeBetweenEvictionRunsMillis=1 + +numTestsPerEvictionRun=3 + +poolPreparedStatements=true + +maxOpenPreparedStatements=3 \ No newline at end of file diff --git a/learn02/src/filters/GlobalFilter.java b/learn02/src/filters/GlobalFilter.java new file mode 100644 index 0000000..dbb5791 --- /dev/null +++ b/learn02/src/filters/GlobalFilter.java @@ -0,0 +1,17 @@ +package filters; + +import jakarta.servlet.*; +import jakarta.servlet.annotation.WebFilter; +import jakarta.servlet.http.HttpServletRequest; +import jakarta.servlet.http.HttpServletResponse; + +import java.io.IOException; + + +public class GlobalFilter implements Filter { + @Override + public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { + filterChain.doFilter(servletRequest, servletResponse); + } + +} diff --git a/learn02/src/pojo/CourseInfo.java b/learn02/src/pojo/CourseInfo.java new file mode 100644 index 0000000..56d6b16 --- /dev/null +++ b/learn02/src/pojo/CourseInfo.java @@ -0,0 +1,33 @@ +package pojo; + +import lombok.*; + + + + +@AllArgsConstructor +@ToString +@NoArgsConstructor +@Data +public class CourseInfo { + private int id; + private String name; + private int type; + private float credit; + private int grade; + private int major; + private String detail; + + public String toJSON(){ + String json="{"; + json += "\"id\":"+id+","; + json += "\"name\":\""+name+"\","; + json += "\"type\":"+type+","; + json += "\"credit\":"+credit+","; + json += "\"grade\":"+grade+","; + json += "\"major\":"+major+","; + json += "\"detail\":\""+detail+"\""; + json += "}"; + return json; + } +} diff --git a/learn02/src/pojo/ScoreInfo.java b/learn02/src/pojo/ScoreInfo.java new file mode 100644 index 0000000..230292b --- /dev/null +++ b/learn02/src/pojo/ScoreInfo.java @@ -0,0 +1,25 @@ +package pojo; + + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; +import lombok.ToString; + +@Data +@AllArgsConstructor +@NoArgsConstructor +@ToString +public class ScoreInfo { + private int studentId; + private int courseId; + private float score; + + public String toJSON(){ + String json = "{"; + json += "\"studentId\":" + studentId + ","; + json += "\"courseId\":" + courseId + ","; + json += "\"score\":" + score + ","; + return json + "}"; + } +} diff --git a/learn02/src/pojo/StudentInfo.java b/learn02/src/pojo/StudentInfo.java new file mode 100644 index 0000000..b9ad28f --- /dev/null +++ b/learn02/src/pojo/StudentInfo.java @@ -0,0 +1,32 @@ +package pojo; + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; +import lombok.ToString; + +@Data +@AllArgsConstructor +@NoArgsConstructor +@ToString +public class StudentInfo { + private int id; + private String code; + private String name; + private int sex; + private int grade; + private String major; + private String detail; + + public String toJSON(){ + String json = "{"; + json += "\"id\":" + id + ","; + json += "\"code\":" + code + ","; + json += "\"name\":" + name + ","; + json += "\"sex\":" + sex + ","; + json += "\"grade\":" + grade + ","; + json += "\"major\":" + major + ","; + json += "\"detail\":" + detail + ","; + return json + "}"; + } +} diff --git a/learn02/src/pojo/TeacherInfo.java b/learn02/src/pojo/TeacherInfo.java new file mode 100644 index 0000000..f38d7c0 --- /dev/null +++ b/learn02/src/pojo/TeacherInfo.java @@ -0,0 +1,30 @@ +package pojo; + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; +import lombok.ToString; + +@Data +@AllArgsConstructor +@NoArgsConstructor +@ToString +public class TeacherInfo { + private int id; + private String name; + private int sex; + private String brith; + private int educ; + private int title; + + public String toJSON(){ + String json = "{"; + json += "\"id\":" + id + ","; + json += "\"name\":\"" + name + "\","; + json += "\"sex\":" + sex + ","; + json += "\"brith\":\"" + brith + "\","; + json += "\"educ\":" + educ + ","; + json += "\"title\":" + title + ","; + return json; + } +} diff --git a/learn02/src/pojo/UserInfo.java b/learn02/src/pojo/UserInfo.java new file mode 100644 index 0000000..c33276d --- /dev/null +++ b/learn02/src/pojo/UserInfo.java @@ -0,0 +1,25 @@ +package pojo; + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; +import lombok.ToString; + +@AllArgsConstructor +@NoArgsConstructor +@Data +@ToString +public class UserInfo { + private int id; + private String name; + private String pass; + + public String toJSON(){ + String json = "{"; + json += "\"id\":" + id + ","; + json += "\"name\":\"" + name + "\","; + json += "\"pass\":\"" + pass; + json += "}"; + return json; + } +} \ No newline at end of file diff --git a/learn02/src/service/CourseService.java b/learn02/src/service/CourseService.java new file mode 100644 index 0000000..d17c4d6 --- /dev/null +++ b/learn02/src/service/CourseService.java @@ -0,0 +1,4 @@ +package service; + +public interface CourseService { +} diff --git a/learn02/src/service/UserService.java b/learn02/src/service/UserService.java new file mode 100644 index 0000000..29c0025 --- /dev/null +++ b/learn02/src/service/UserService.java @@ -0,0 +1,4 @@ +package service; + +public interface UserService { +} diff --git a/learn02/src/test/TestDao.java b/learn02/src/test/TestDao.java new file mode 100644 index 0000000..370dccb --- /dev/null +++ b/learn02/src/test/TestDao.java @@ -0,0 +1,15 @@ +package test; + +import dao.CourseDB; +import dao.impl.CourseDBImpl; +import pojo.CourseInfo; + +import java.util.ArrayList; + +public class TestDao { + public static void main(String[] args) { + CourseDB courseDB = new CourseDBImpl(); + ArrayList courseInfos = courseDB.getAllCourseInfo(); + System.out.println(courseInfos); + } +} diff --git a/learn02/web/course/course.jsp b/learn02/web/course/course.jsp new file mode 100644 index 0000000..1f732f2 --- /dev/null +++ b/learn02/web/course/course.jsp @@ -0,0 +1,63 @@ +<%-- + Created by IntelliJ IDEA. + User: 25589 + Date: 2024/11/21 + Time: 涓嬪崍5:00 + To change this template use File | Settings | File Templates. +--%> +<%@ page contentType="text/html;charset=UTF-8" %> + + + + + 璇剧▼淇℃伅鍒楄〃 + + + + +
+ +
+
+




+ + + + + + + + + + + + + + + + + + + + + + + + + + +
璇剧▼淇℃伅鍒楄〃
鍚嶇О鎬ц川瀛﹀垎寮璁惧勾绾寮璁句笓涓
{{course.name}}{{types[course.type]}}{{course.credit}}{{course.grade}}{{majors[course.major]}} + 缂栬緫 + 鍒犻櫎 +
娣诲姞 + 鍒锋柊鏁版嵁鍒楄〃 +
+
+ + + + + + diff --git a/learn02/web/course/course_edit.jsp b/learn02/web/course/course_edit.jsp new file mode 100644 index 0000000..124315e --- /dev/null +++ b/learn02/web/course/course_edit.jsp @@ -0,0 +1,87 @@ +<%@ page contentType="text/html;charset=UTF-8" language="java" %> +
+
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
璇剧▼淇℃伅褰曞叆锛*浠ｈ〃蹇呭～
+ + + *5~20浣嶅瓧绗 +
+ + + * +
+ + + *鏁板 +
+ + + *4浣嶆暟骞翠唤 +
寮璁句笓涓 + + + + + + + + * +
+ + + 200涓瓧绗︿互鍐 +
+ + +
+
+
\ No newline at end of file diff --git a/learn02/web/course/tmp b/learn02/web/course/tmp new file mode 100644 index 0000000..9fc8bda --- /dev/null +++ b/learn02/web/course/tmp @@ -0,0 +1,82 @@ +
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
璇剧▼淇℃伅褰曞叆锛*
+ + +*5~20浣嶅瓧绗 +
+ + +* +
+ + +*鏁板 +
+ + +*4浣嶆暟骞翠唤 +
寮璁句笓涓 + + + + + + + +* +
+ + +200涓瓧绗︿互鍐 +
+ +
+
\ No newline at end of file diff --git a/learn02/web/css/common.css b/learn02/web/css/common.css new file mode 100644 index 0000000..79935bb --- /dev/null +++ b/learn02/web/css/common.css @@ -0,0 +1,62 @@ +.container{ + background-color: white; + position: relative; + margin: auto; + width: 80%; +} + +body{ + background-color: white; +} + +a{ + text-decoration: none; + color: white; + font-weight: bold; +} + +table{ + width:100%; + border-spacing: 0; + background-color: #c4c4c4; +} + +tr{ + height: 25px; + padding: 2px; +} + +.tr-head{ + background-color: #2bf; + text-align: center; +} + +tr:nth-child(odd){ + background:#F4F4F4; +} + +button,.button{ + background-color: #39f; + border: #39f solid 1px; + border-radius: 5px; + color: white; + padding: 5px; + line-height: 100%; + text-align: center; + margin: 5px; +} + +.red { + COLOR: red +} + +.blue { + color: blue; +} + +.underline { + BORDER-BOTTOM: #c4c4c4 1pt solid; + BORDER-LEFT: #c4c4c4; + BORDER-RIGHT: #c4c4c4; + BORDER-TOP: #c4c4c4; +} \ No newline at end of file diff --git a/learn02/web/css/course.css b/learn02/web/css/course.css new file mode 100644 index 0000000..1f0b3d8 --- /dev/null +++ b/learn02/web/css/course.css @@ -0,0 +1,8 @@ +.input-form{ + border: black solid 1px; + margin: auto; + td{ + border: black solid 1px; + } +} + diff --git a/learn02/web/css/index.css b/learn02/web/css/index.css new file mode 100644 index 0000000..b934235 --- /dev/null +++ b/learn02/web/css/index.css @@ -0,0 +1,41 @@ +.nav-area{ + position: absolute; + top: 0; + left: 0; + background-color: #2bf; + height: 95%; + width: 20%; + margin: 0; + padding: 5px; +} + +.nav-list{ + padding-left: 0; + padding-right: 5px; +} + +.nav-item{ + list-style: none; + line-height: 100%; + text-align: center; + font-size: 19px; + margin: 5px 0; + padding: 3px 0; + color: white; + a{ + text-decoration: none; + color: white; + font-weight: bold; + } +} + +.content{ + position: absolute; + top: 0; + right: 0; + background-color: #eee; + height: 95%; + width: 79%; + margin: 0; + padding: 5px; +} \ No newline at end of file diff --git a/learn02/web/css/login.css b/learn02/web/css/login.css new file mode 100644 index 0000000..592ef0e --- /dev/null +++ b/learn02/web/css/login.css @@ -0,0 +1,15 @@ +.login-card{ + width: 80%; + border: #eee solid 2px; + border-radius: 5px; +} +input{ + width: 75%; + height: 35px; + border: grey solid 2px; + border-radius: 5px; + margin: 5px; + padding: 5px; + line-height: 100%; + text-align: center; +} diff --git a/learn02/web/error.jsp b/learn02/web/error.jsp new file mode 100644 index 0000000..0d92c44 --- /dev/null +++ b/learn02/web/error.jsp @@ -0,0 +1,16 @@ +<%@ page contentType="text/html;charset=UTF-8"%> + + + + + 瀛︾敓鏄熺郴绠＄悊绯荤粺 + + +
+

閿欒锛

+

閿欒浠ｇ爜锛<%=(request.getParameter("err-code") == null?"鏈煡閿欒":request.getParameter("err-code"))%>

+
+

<%=(request.getParameter("msg") == null?"":request.getParameter("msg"))%>

+
+ + \ No newline at end of file diff --git a/learn02/web/home.jsp b/learn02/web/home.jsp new file mode 100644 index 0000000..ffc552c --- /dev/null +++ b/learn02/web/home.jsp @@ -0,0 +1,44 @@ +<%-- + Created by IntelliJ IDEA. + User: 25589 + Date: 2024/12/3 + Time: 涓婂崍12:17 + To change this template use File | Settings | File Templates. +--%> +<%@ page contentType="text/html;charset=UTF-8" %> + + + 涓婚〉 + + + +
+

瀛︾敓淇℃伅绠＄悊绯荤粺

+ + <% + if(session.getAttribute("user")==null){ + out.println(""); + }else{ + out.println(""); + } + %> +
+ + {{ message }} +

杩欐槸Hello vue

+

杩欎笉鏄疕ello vue

+
+
+ + + + diff --git a/learn02/web/index.jsp b/learn02/web/index.jsp index c0cede3..c753d55 100644 --- a/learn02/web/index.jsp +++ b/learn02/web/index.jsp @@ -1,16 +1,25 @@ <%-- Created by IntelliJ IDEA. - User: awinx - Date: 2024/12/5 - Time: 锟斤拷锟斤拷1:31 + User: 25589 + Date: 2024/11/28 + Time: 涓嬪崍1:20 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8"%> - $Title$ + 瀛︾敓淇℃伅绠＄悊绯荤粺 + + - $END$ +
+ +
+ + diff --git a/learn02/web/js/course-edit.js b/learn02/web/js/course-edit.js new file mode 100644 index 0000000..8ec5b90 --- /dev/null +++ b/learn02/web/js/course-edit.js @@ -0,0 +1,145 @@ +const types = ['', '鍏叡鍩虹蹇呬慨璇', '鍏叡閫変慨璇', '瀛︾鍩虹璇', '涓撲笟蹇呬慨璇', '涓撲笟閫変慨璇', '闆嗕腑鎬у疄璺垫暀瀛︾幆鑺'] +const majors = ['', '杞欢宸ョ▼', '绌洪棿淇℃伅', '澶ф暟鎹']; +let courses; + +new Vue({ + el: "#course-list-vue", + data: { + courses: [], + types: types, + majors: majors, + path: path + }, + mounted(){ + $.ajax({ + url: path+"/courseAction/list", + method: "GET", + success: (data, status, xhr) =>{ + this.courses = data; + } + }); + }, + method: { + edit: ()=>{} + } +}); + +function getCourses(){ + // $.ajax({ + // url: path+"/courseAction/list", + // method: "GET", + // success: (data, status, xhr)=>{ + // const course_list = document.getElementById('course-list'); + // console.log(xhr.status); + // course_list.innerHTML = "璇剧▼淇℃伅鍒楄〃 鍚嶇О 鎬ц川 瀛﹀垎 寮璁惧勾绾 寮璁句笓涓 " + // courses = data; + // for (let i in data){ + // const course_tr = document.createElement('tr'); + // course_tr.innerHTML=""+ data[i].name +"" + + // ""+types[data[i].type]+"" + + // ""+ data[i].credit +"" + + // ""+ data[i].grade + "" + + // ""+ majors[data[i].major]+"" + + // "缂栬緫 鍒犻櫎"; + // course_list.appendChild(course_tr); + // } + // const end_tr = document.createElement('tr'); + // end_tr.innerHTML="娣诲姞" + + // "鍒锋柊鏁版嵁鍒楄〃"; + // course_list.appendChild(end_tr); + // }, + // error: ()=>{ + // window.location=path+"/login/login.jsp"; + // } + // }); +} +$(document).ready(getCourses); + +function editCourse(i){ + $(".course-editor").load(path+"/course/course_edit.jsp", ()=>{ + const form = document.querySelector('.course-edit'); + form.action = path+"/courseAction/update"; + form.method = "POST"; + const idInput = document.getElementById('id-input'); + idInput.value = courses[i].id; + const nameInput = document.getElementById('name-input'); + nameInput.value = courses[i].name; + const typeInput = document.getElementById('type-input'); + typeInput.value = courses[i].type; + const creditInput = document.getElementById('credit-input'); + creditInput.value = courses[i].credit; + const yearInput = document.getElementById('grade-input'); + yearInput.value = courses[i].grade; + const majorInputs = form.querySelectorAll('input[name="major"]'); + majorInputs.forEach((input) => { + if (parseInt(input.value) === courses[i].major) { + input.checked = true; + } + }); + + const noteInput = form.querySelector('#detail-input'); + noteInput.value = courses[i].detail; + + form.addEventListener('submit', function (e) { + e.preventDefault(); + const gradeInput = document.getElementById('grade-input'); + if (!/^20\d{2}$/.test(gradeInput.value)) { + alert('璇疯緭鍏ュ悎娉曠殑鍥涗綅骞翠唤'); + return; + } + + const nameInput = document.getElementById('name-input'); + console.log(nameInput.value.length) + console.log(nameInput.value) + if (nameInput.value.length < 5 || nameInput.value.length > 20){ + 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See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +wrapperVersion=3.3.2 +distributionType=only-script +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip diff --git a/learn03-springboot/mvnw b/learn03-springboot/mvnw new file mode 100644 index 0000000..19529dd --- /dev/null +++ b/learn03-springboot/mvnw @@ -0,0 +1,259 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Apache Maven Wrapper startup batch script, version 3.3.2 +# +# Optional ENV vars +# ----------------- +# JAVA_HOME - location of a JDK home dir, required when download maven via java source +# MVNW_REPOURL - repo url base for downloading maven distribution +# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output +# ---------------------------------------------------------------------------- + +set -euf +[ "${MVNW_VERBOSE-}" != debug ] || set -x + +# OS specific support. +native_path() { printf %s\\n "$1"; } +case "$(uname)" in +CYGWIN* | MINGW*) + [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")" + native_path() { cygpath --path --windows "$1"; } + ;; +esac + +# set JAVACMD and JAVACCMD +set_java_home() { + # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched + if [ -n "${JAVA_HOME-}" ]; then + if [ -x "$JAVA_HOME/jre/sh/java" ]; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + JAVACCMD="$JAVA_HOME/jre/sh/javac" + else + JAVACMD="$JAVA_HOME/bin/java" + JAVACCMD="$JAVA_HOME/bin/javac" + + if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then + echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2 + echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2 + return 1 + fi + fi + else + JAVACMD="$( + 'set' +e + 'unset' -f command 2>/dev/null + 'command' -v java + )" || : + JAVACCMD="$( + 'set' +e + 'unset' -f command 2>/dev/null + 'command' -v javac + )" || : + + if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then + echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2 + return 1 + fi + fi +} + +# hash string like Java String::hashCode +hash_string() { + str="${1:-}" h=0 + while [ -n "$str" ]; do + char="${str%"${str#?}"}" + h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296)) + str="${str#?}" + done + printf %x\\n $h +} + +verbose() { :; } +[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; } + +die() { + printf %s\\n "$1" >&2 + exit 1 +} + +trim() { + # MWRAPPER-139: + # Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds. + # Needed for removing poorly interpreted newline sequences when running in more + # exotic environments such as mingw bash on Windows. + printf "%s" "${1}" | tr -d '[:space:]' +} + +# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties +while IFS="=" read -r key value; do + case "${key-}" in + distributionUrl) distributionUrl=$(trim "${value-}") ;; + distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;; + esac +done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties" +[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties" + +case "${distributionUrl##*/}" in +maven-mvnd-*bin.*) + MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ + case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in + *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;; + :Darwin*x86_64) distributionPlatform=darwin-amd64 ;; + :Darwin*arm64) distributionPlatform=darwin-aarch64 ;; + :Linux*x86_64*) distributionPlatform=linux-amd64 ;; + *) + echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2 + distributionPlatform=linux-amd64 + ;; + esac + distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip" + ;; +maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;; +*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;; +esac + +# apply MVNW_REPOURL and calculate MAVEN_HOME +# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/ +[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}" +distributionUrlName="${distributionUrl##*/}" +distributionUrlNameMain="${distributionUrlName%.*}" +distributionUrlNameMain="${distributionUrlNameMain%-bin}" +MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}" +MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")" + +exec_maven() { + unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || : + exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD" +} + +if [ -d "$MAVEN_HOME" ]; then + verbose "found existing MAVEN_HOME at $MAVEN_HOME" + exec_maven "$@" +fi + +case "${distributionUrl-}" in +*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;; +*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;; +esac + +# prepare tmp dir +if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then + clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; } + trap clean HUP INT TERM EXIT +else + die "cannot create temp dir" +fi + +mkdir -p -- "${MAVEN_HOME%/*}" + +# Download and Install Apache Maven +verbose "Couldn't find MAVEN_HOME, downloading and installing it ..." +verbose "Downloading from: $distributionUrl" +verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName" + +# select .zip or .tar.gz +if ! command -v unzip >/dev/null; then + distributionUrl="${distributionUrl%.zip}.tar.gz" + distributionUrlName="${distributionUrl##*/}" +fi + +# verbose opt +__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR='' +[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v + +# normalize http auth +case "${MVNW_PASSWORD:+has-password}" in +'') MVNW_USERNAME='' MVNW_PASSWORD='' ;; +has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;; +esac + +if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then + verbose "Found wget ... using wget" + wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl" +elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then + verbose "Found curl ... using curl" + curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl" +elif set_java_home; then + verbose "Falling back to use Java to download" + javaSource="$TMP_DOWNLOAD_DIR/Downloader.java" + targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName" + cat >"$javaSource" <<-END + public class Downloader extends java.net.Authenticator + { + protected java.net.PasswordAuthentication getPasswordAuthentication() + { + return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() ); + } + public static void main( String[] args ) throws Exception + { + setDefault( new Downloader() ); + java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() ); + } + } + END + # For Cygwin/MinGW, switch paths to Windows format before running javac and java + verbose " - Compiling Downloader.java ..." + "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java" + verbose " - Running Downloader.java ..." + "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")" +fi + +# If specified, validate the SHA-256 sum of the Maven distribution zip file +if [ -n "${distributionSha256Sum-}" ]; then + distributionSha256Result=false + if [ "$MVN_CMD" = mvnd.sh ]; then + echo "Checksum validation is not supported for maven-mvnd." >&2 + echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2 + exit 1 + elif command -v sha256sum >/dev/null; then + if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then + distributionSha256Result=true + fi + elif command -v shasum >/dev/null; then + if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then + distributionSha256Result=true + fi + else + echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2 + echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2 + exit 1 + fi + if [ $distributionSha256Result = false ]; then + echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2 + echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2 + exit 1 + fi +fi + +# unzip and move +if command -v unzip >/dev/null; then + unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip" +else + tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar" +fi +printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url" +mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME" + +clean || : +exec_maven "$@" diff --git a/learn03-springboot/mvnw.cmd b/learn03-springboot/mvnw.cmd new file mode 100644 index 0000000..249bdf3 --- /dev/null +++ b/learn03-springboot/mvnw.cmd @@ -0,0 +1,149 @@ +<# : batch portion +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Apache Maven Wrapper startup batch script, version 3.3.2 +@REM +@REM Optional ENV vars +@REM MVNW_REPOURL - repo url base for downloading maven distribution +@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output +@REM ---------------------------------------------------------------------------- + +@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0) +@SET __MVNW_CMD__= +@SET __MVNW_ERROR__= +@SET __MVNW_PSMODULEP_SAVE=%PSModulePath% +@SET PSModulePath= +@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @( + IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B) +) +@SET PSModulePath=%__MVNW_PSMODULEP_SAVE% +@SET __MVNW_PSMODULEP_SAVE= +@SET __MVNW_ARG0_NAME__= +@SET MVNW_USERNAME= +@SET MVNW_PASSWORD= +@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*) +@echo Cannot start maven from wrapper >&2 && exit /b 1 +@GOTO :EOF +: end batch / begin powershell #> + +$ErrorActionPreference = "Stop" +if ($env:MVNW_VERBOSE -eq "true") { + $VerbosePreference = "Continue" +} + +# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties +$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl +if (!$distributionUrl) { + Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties" +} + +switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) { + "maven-mvnd-*" { + $USE_MVND = $true + $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip" + $MVN_CMD = "mvnd.cmd" + break + } + default { + $USE_MVND = $false + $MVN_CMD = $script -replace '^mvnw','mvn' + break + } +} + +# apply MVNW_REPOURL and calculate MAVEN_HOME +# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/ +if ($env:MVNW_REPOURL) { + $MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" } + $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')" +} +$distributionUrlName = $distributionUrl -replace '^.*/','' +$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$','' +$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain" +if ($env:MAVEN_USER_HOME) { + $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain" +} +$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join '' +$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME" + +if (Test-Path -Path "$MAVEN_HOME" -PathType Container) { + Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME" + Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD" + exit $? +} + +if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) { + Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl" +} + +# prepare tmp dir +$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile +$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir" +$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null +trap { + if ($TMP_DOWNLOAD_DIR.Exists) { + try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null } + catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" } + } +} + +New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null + +# Download and Install Apache Maven +Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..." +Write-Verbose "Downloading from: $distributionUrl" +Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName" + +$webclient = New-Object System.Net.WebClient +if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) { + $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD) +} +[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 +$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null + +# If specified, validate the SHA-256 sum of the Maven distribution zip file +$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum +if ($distributionSha256Sum) { + if ($USE_MVND) { + Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." + } + Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash + if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) { + Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property." + } +} + +# unzip and move +Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null +Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null +try { + Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null +} catch { + if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) { + Write-Error "fail to move MAVEN_HOME" + } +} finally { + try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null } + catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" } +} + +Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD" diff --git a/learn03-springboot/pom.xml b/learn03-springboot/pom.xml new file mode 100644 index 0000000..0dbb187 --- /dev/null +++ b/learn03-springboot/pom.xml @@ -0,0 +1,85 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 3.4.0 + + + top.awin-x + learn03-springboot + 0.0.1-SNAPSHOT + war + learn03-springboot + learn03-springboot + + + + + + + + + + + + + + + 21 + + + + org.springframework.boot + spring-boot-starter-web + + + + org.projectlombok + lombok + true + + + org.springframework.boot + spring-boot-starter-tomcat + provided + + + org.springframework.boot + spring-boot-starter-test + test + + + + + + + org.apache.maven.plugins + maven-compiler-plugin + + + + org.projectlombok + lombok + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + org.projectlombok + lombok + + + + + + + + diff --git a/learn03-springboot/src/main/java/top/awin_x/learn/Learn03SpringbootApplication.java b/learn03-springboot/src/main/java/top/awin_x/learn/Learn03SpringbootApplication.java new file mode 100644 index 0000000..4a7f8bf --- /dev/null +++ b/learn03-springboot/src/main/java/top/awin_x/learn/Learn03SpringbootApplication.java @@ -0,0 +1,13 @@ +package top.awin_x.learn; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class Learn03SpringbootApplication { + + public static void main(String[] args) { + SpringApplication.run(Learn03SpringbootApplication.class, args); + } + +} diff --git a/learn03-springboot/src/main/java/top/awin_x/learn/ServletInitializer.java b/learn03-springboot/src/main/java/top/awin_x/learn/ServletInitializer.java new file mode 100644 index 0000000..9fbc510 --- /dev/null +++ b/learn03-springboot/src/main/java/top/awin_x/learn/ServletInitializer.java @@ -0,0 +1,13 @@ +package top.awin_x.learn; + +import org.springframework.boot.builder.SpringApplicationBuilder; +import org.springframework.boot.web.servlet.support.SpringBootServletInitializer; + +public class ServletInitializer extends SpringBootServletInitializer { + + @Override + protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { + return application.sources(Learn03SpringbootApplication.class); + } + +} diff --git a/learn03-springboot/src/main/resources/application.properties b/learn03-springboot/src/main/resources/application.properties new file mode 100644 index 0000000..45c4bb2 --- /dev/null +++ b/learn03-springboot/src/main/resources/application.properties @@ -0,0 +1 @@ +spring.application.name=learn03-springboot diff --git a/learn03-springboot/src/test/java/top/awin_x/learn/Learn03SpringbootApplicationTests.java b/learn03-springboot/src/test/java/top/awin_x/learn/Learn03SpringbootApplicationTests.java new file mode 100644 index 0000000..a78dccd --- /dev/null +++ b/learn03-springboot/src/test/java/top/awin_x/learn/Learn03SpringbootApplicationTests.java @@ -0,0 +1,13 @@ +package top.awin_x.learn; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class Learn03SpringbootApplicationTests { + + @Test + void contextLoads() { + } + +} diff --git a/learn1/src/course/CourseDB.java b/learn1/src/course/CourseDB.java index 766783e..52e601e 100644 --- a/learn1/src/course/CourseDB.java +++ b/learn1/src/course/CourseDB.java @@ -77,7 +77,7 @@ public class CourseDB { } public static void insertCourse(CourseInfo course){ - try{ + try { String sql = "INSERT INTO t_course (VC_COURSE_NAME, N_TYPE, F_CREDIT, N_GRADE, N_MAJOR, VC_DETAIL) VALUES(?, ?, ?, ?, ?, ?)"; PreparedStatement ps = DBTool.getPreparedStatement(sql); ps.setString(1, course.getName());