本文实例为大家分享了JSP学生信息管理系统源码,JSP+Servlet+Javabean+JDBC+MySQL,供大家参考,具体内容如下
1.service层,进行数据库操作
package com.service;/*** 负责学生信息的所有数据库操作,增删改查 */import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import java.util.ArrayList;import java.util.List; import com.model.stuInfo; public class stuInfoService { private Connection conn; private PreparedStatement pstmt;//执行sql语句public stuInfoService() {conn = new com.conn.conn().getCon(); }public boolean addStu(stuInfo stu) {//插入学生数据try { pstmt = conn.prepareStatement("insert into studentinfo" + "(Nickname,truename,sex,birthday,major,course,interest,remark) " + "values(?,?,?,?,?,?,?,?)"); pstmt.setString(1, stu.getNickname()); pstmt.setString(2, stu.getTruename()); pstmt.setByte(3, stu.getSex()); pstmt.setString(4, stu.getbirthday()); pstmt.setString(5, stu.getmajor()); pstmt.setString(6, stu.getcourses()); pstmt.setString(7, stu.getinterests()); pstmt.setString(8, stu.getremark());pstmt.executeUpdate(); return true;} catch (SQLException e) { // TODO Auto-generated catch blocke.printStackTrace(); return false;}}//查询所哟学生信息 public List<stuInfo> queryAllStu() {//查询学生数据List<stuInfo> stus = new ArrayList<stuInfo>();//每一个学生的信息作为list集合的每一个元素存储在list集合中try { pstmt = conn.prepareStatement("select * from studentinfo"); ResultSet rs = pstmt.executeQuery(); while (rs.next()) {stuInfo stu = new stuInfo();stu.setId(rs.getInt(1));stu.setNickname(rs.getString(2));stu.setTruename(rs.getString(3));stu.setSex(rs.getByte(4));if (rs.getDate(5) != null) stu.setbirthday(rs.getDate(5).toString());stu.setmajor(rs.getString(6));if (rs.getString(7) != null) stu.setcourse(rs.getString(7).split("&"));if (rs.getString(8) != null) stu.setinterest(rs.getString(8).split("&"));stu.setremark(rs.getString(9));stus.add(stu);} return stus; } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); return null;}}//查询单个学生信息 public stuInfo queryStubyID(int id) {// List stus = new ArrayList();try { pstmt = conn .prepareStatement("select * from studentinfo where id=?"); pstmt.setInt(1, id); ResultSet rs = pstmt.executeQuery(); if (rs.next()) {stuInfo stu = new stuInfo();stu.setId(rs.getInt(1));stu.setNickname(rs.getString(2));stu.setTruename(rs.getString(3));stu.setSex(rs.getByte(4));if (rs.getDate(5) != null) stu.setbirthday(rs.getDate(5).toString());stu.setmajor(rs.getString(6));if (rs.getString(7) != null) stu.setcourse(rs.getString(7).split("&"));if (rs.getString(8) != null) stu.setinterest(rs.getString(8).split("&"));stu.setremark(rs.getString(9));// stus.add(stu);return stu;} return null; } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); return null;}}//更新学生信息 public boolean updateStu(stuInfo stu) { try { pstmt = conn .prepareStatement("update studentinfo set Nickname=? , truename=? , sex=? ,birthday=? ," + " major=? ,course=? , interest=?, remark=? where id=?"); pstmt.setString(1, stu.getNickname()); pstmt.setString(2, stu.getTruename()); pstmt.setByte(3, stu.getSex()); pstmt.setString(4, stu.getbirthday()); pstmt.setString(5, stu.getmajor()); pstmt.setString(6, stu.getcourses()); pstmt.setString(7, stu.getinterests()); pstmt.setString(8, stu.getremark()); pstmt.setInt(9, stu.getId()); pstmt.executeUpdate(); return true;} catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); return false;} }//删除学生信息 public Boolean deleteStu(int id) { try { pstmt = conn.prepareStatement("delete from studentinfo where id=?"); pstmt.setInt(1, id); pstmt.executeUpdate(); return true;} catch (Exception e) { e.getStackTrace(); return false;}}}
2.InputStuInfoServlet,添加学生信息的Servlet
package com.servlet; import java.io.IOException;import java.io.PrintWriter;import java.util.Date; import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse; import com.model.stuInfo;import com.service.stuInfoService; public class inputStuInfoServlet extends HttpServlet {/*** Constructor of the object.*/ public inputStuInfoServlet() {super(); }/*** Destruction of the servlet. <br>*/ public void destroy() {super.destroy(); // Just puts "destroy" string in log// Put your code here }/*** The doGet method of the servlet. <br>** This method is called when a form has its tag value method equals to get.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); }/*** The doPost method of the servlet. <br>** This method is called when a form has its tag value method equals to post.* * @param request the request send by the client to the server* @param response the response send by the server to the client* @throws ServletException if an error occurred* @throws IOException if an error occurred*/ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {request.setCharacterEncoding("utf-8");//get到表单所有的控件的值String nickname=request.getParameter("nickname");String truename=request.getParameter("truename");byte sex=Byte.parseByte(request.getParameter("sex"));String birthday=request.getParameter("birthday");String major=request.getParameter("major");System.out.println(major);//String course=request.getParameter("course");String courses[]=request.getParameterValues("course");String interests[]=request.getParameterValues("interest");String remark=request.getParameter("remark");//放到Javabean中暂时保存stuInfo stu=new stuInfo();stu.setNickname(nickname);stu.setTruename(truename); stu.setbirthday(birthday);if(birthday.equals("")) stu.setbirthday(null);if(courses!=null)stu.setcourse(courses);if(interests!=null)stu.setinterest(interests);stu.setremark(remark);stu.setmajor(major);stu.setSex(sex);if(new stuInfoService().addStu(stu))//插入学生数据的方法 response.sendRedirect("../inputStuInfo_success.jsp");else response.sendRedirect("../inputStuInfo.jsp");//插入数据库失败则返回初始输入页面}/*** Initialization of the servlet. <br>** @throws ServletException if an error occurs*/ public void init() throws ServletException {// Put your code here } }
3.stuInfo,保存学生信息的Javabean package com.model;//Javabean相当于是一个中间件,用于类与类之间,各层之间的中转数据的一个中转站public class stuInfo { private int id; private String nickname; private String truename; private byte sex; private String birthday; private String major; private String[] course = { "" }; private String courses = ""; private String[] interest = { "" }; private String interests = ""; private String remark; public int getId() {return id; } public void setId(int id) {this.id = id; } public String getNickname() {return nickname; } public void setNickname(String nickname) {this.nickname = nickname; } public String getTruename() {return truename; } public void setTruename(String truename) {this.truename = truename; } public byte getSex() {return sex; } public void setSex(byte sex) {this.sex = sex; } public String getbirthday() {return birthday; } public void setbirthday(String birthday) {this.birthday = birthday; } public String getmajor() {return major; } public void setmajor(String major) {this.major = major; } public String[] getcourse() {return course; } public void setcourse(String[] course) {this.course = course; } public String getcourses() { if(course!=null){courses=""; for(int i=0;i<course.length;i++) courses+=course[i]+"&";}courses=courses.substring(0,courses.length()-1);return courses; } public void setcourses(String courses) {this.courses = courses; } public String[] getinterest() {return interest; } public void setinterest(String[] interest) {this.interest = interest; } public String getinterests() {if(interest!=null){interests=""; for(int i=0;i<interest.length;i++) interests+=interest[i]+"&";}interests=interests.substring(0,interests.length()-1);return interests; } public void setinterests(String interests) {this.interests = interests; } public String getremark() {return remark; } public void setremark(String remark) {this.remark = remark; }}
4.DB connect 类 package com.conn; import java.sql.Connection;import java.sql.DriverManager; public class conn {public Connection getCon() {try { Class.forName("com.mysql.jdbc.Driver"); String url = "jdbc:mysql://localhost/Stu_info_System?useUnicode=true&characterEncoding=utf-8"; String user = "root"; String password = "root"; Connection conn = DriverManager.getConnection(url, user, password); System.out.println(conn.getMetaData().getURL());return conn;} catch (Exception e) { e.printStackTrace(); return null;}} }
源码下载:JSP学生信息管理系统
以上就是本文的全部内容,希望对大家学习JSP管理系统有所帮助。