Object[] params = {score,sno,cno,tno};
return DBUtils.executeUpdate(sql, params);
}
}
[](()StudentDaoImpl.java
package com.bluehonour.sscs.dao.impl;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import com.bluehonour.sscs.dao.StudentDao;
import com.bluehonour.sscs.entity.ClassInfo;
import com.bluehonour.sscs.entity.CriteriaStudent;
import com.bluehonour.sscs.entity.Student;
import com.bluehonour.sscs.util.DBUtils;
public class StudentDaoImpl implements StudentDao {
@Override
public int save(Student stu) {
String sql = “insert into t_student(password,sname,phone,sex,birthday,classno,remark) values(?,?,?,?,?,?,?)”;
Object[] params = { stu.getPassword(), stu.getSname(), stu.getPhone(), stu.getSex(), stu.getBirthday(),
stu.getClassno(), stu.getRemark() };
return DBUtils.executeUpdate(sql, params);
}
@Override
public List findAll() {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
Student student = null;
List stuList = new ArrayList();
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
String sql = “select * from t_student”;
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
// 处理返回结果
while (rs.next()) {
// 取出结果集当前行各个字段的值
int sno = rs.getInt(“sno”);
String password = rs.getString(“password”);
String sname = rs.getString(“sname”);
long phone = rs.getLong(“phone”);
String sex = rs.getString(“sex”);
Date birthday = rs.getDate(“birthday”);
int classno = rs.getInt(“classno”);
String remark = rs.getString(“remark”);
// 封装成对象
student = new Student(sno,password, sname, phone, sex, birthday, classno, remark);
stuList.add(student);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return stuList;
}
@Override
public int del(int sno) {
String sql = “delete from t_student where sno = ?”;
Object[] params = {sno };
return DBUtils.executeUpdate(sql, params);
}
@Override
public Student findById(int sno) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
Student student = null;
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
String sql = "select * from t_student where sno = " + sno;
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
// 处理返回结果
if (rs.next()) {
// 取出结果集当前行各个字段的值
String password = rs.getString(“password”);
String sname = rs.getString(“sname”);
long phone = rs.getLong(“phone”);
String sex = rs.getString(“sex”);
Date birthday = rs.getDate(“birthday”);
int classno = rs.getInt(“classno”);
String remark = rs.getString(“remark”);
// 封装成对象
student = new Student(sno,password, sname, phone, sex, birthday, classno, remark);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return student;
}
@Override
public int update(Student stu) {
String sql = “update t_student set sname=?,password=?,phone=?,birthday=?,sex=?,classno=?,remark=? where sno=?”;
Object[] params = { stu.getSname(),stu.getPassword(),stu.getPhone(),stu.getBirthday(),stu.getSex(),stu.getClassno(),
stu.getRemark(),stu.getSno() };
return DBUtils.executeUpdate(sql, params);
}
@Override
public Student find(String sno, String password) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
Student student = null;
try {
//建立连接
connection = DBUtils.getConnection();
//向数据库发送sql命令并得到结果
String sql = “select * from t_student where sno = ? and password = ?”;
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, sno);
preparedStatement.setString(2, password);
rs = preparedStatement.executeQuery();
//处理返回结果
if(rs.next()) {
//取出结果集当前行各个字段的值
String sname = rs.getString(“sname”);
long phone = rs.getLong(“phone”);
String sex = rs.getString(“sex”);
Date birthday = rs.getDate(“birthday”);
int classno = rs.getInt(“classno”);
String remark = rs.getString(“remark”);
//封装成对象
student = new Student(Integer.parseInt(sno), password, sname, phone, sex, birthday, classno, remark);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
//关闭数据库资源
DBUtils.closeAll(rs, preparedStatement, connection);
}
return student;
}
@Override
public List getClassInfo() {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
ClassInfo clazz = null;
List list = new ArrayList();
try {
//建立连接
connection = DBUtils.getConnection();
//向数据库发送sql命令并得到结果
String sql = “select * from t_class”;
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
//处理返回结果
while(rs.next()) {
//取出结果集当前行各个字段的值
int classno = rs.getInt(“classno”);
String cname = rs.getString(“cname”);
String cteacher = rs.getString(“cteacher”);
String classroom = rs.getString(“classroom”);
//封装成对象
clazz = new ClassInfo(classno, cname, cteacher, classroom);
list.add(clazz);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
//关闭数据库资源
DBUtils.closeAll(rs, preparedStatement, connection);
}
return list;
}
@Override
public List getForListWithCriteriaStudent(CriteriaStudent student) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
List stuList = new ArrayList();
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
StringBuffer sql = new StringBuffer();
sql.append(“select * from t_student”);
if(!student.getSno().equals(“”)) {
sql.append(" and sno like ‘%“+ student.getSno() +”%’");
}
if(!student.getSname().equals(“”)) {
sql.append(" and sname like ‘%“+ student.getSname() +”%’");
}
if(!student.getSex().equals(“”)) {
sql.append(" and sex =‘“+ student.getSex() +”’");
}
if(!student.getClassno().equals(“”)) {
sql.append(" and classno like ‘%“+ student.getClassno() +”%’");
}
if(!student.getRemark().equals(“”)) {
sql.append(" and remark=‘“+ student.getRemark() +”’");
}
String SQL = sql.toString();
SQL = SQL.replaceFirst(“and”, “where”);
System.out.println(SQL);
preparedStatement = connection.prepareStatement(SQL);
rs = preparedStatement.executeQuery();
// 处理返回结果
while (rs.next()) {
// 取出结果集当前行各个字段的值
int sno = rs.getInt(“sno”);
String password = rs.getString(“password”);
String sname = rs.getString(“sname”);
long phone = rs.getLong(“phone”);
String sex = rs.getString(“sex”);
Date birthday = rs.getDate(“birthday”);
int classno = rs.getInt(“classno”);
String remark = rs.getString(“remark”);
// 封装成对象
Student stu = new Student(sno,password, sname, phone, sex, birthday, classno, remark);
stuList.add(stu);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return stuList;
}
}
[](()TeacherCourseDaoImpl.javab
package com.bluehonour.sscs.dao.impl;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import com.bluehonour.sscs.dao.TeacherCourseDao;
import com.bluehonour.sscs.entity.Course;
import com.bluehonour.sscs.entity.Teacher;
import com.bluehonour.sscs.util.DBUtils;
public class TeacherCourseDaoImpl implements TeacherCourseDao {
@Override
public int save(int cno, int tno) {
String sql = “insert into t_tc values(?,?)”;
Object[] params = {cno,tno};
return DBUtils.executeUpdate(sql, params);
}
@Override
public int delete(int cno, int tno) {
String sql = “delete from t_tc where cno = ? and tno = ?”;
Object[] params = {cno,tno};
return DBUtils.executeUpdate(sql, params);
}
@Override
public List findAll() {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
List list = new ArrayList();
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
String sql = “select * from t_course c”
-
" join t_tc tc"
-
" on (c.cno = tc.cno)"
-
" join t_teacher t"
-
" on (tc.tno = t.tno)"
-
" order by c.cno";
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
// 处理返回结果
while (rs.next()) {
// 取出结果集当前行课程各个字段的值
int cno = rs.getInt(“cno”);
String name = rs.getString(“name”);
int credit = rs.getInt(“credit”);
Date periodstart = rs.getDate(“periodstart”);
Date periodend = rs.getDate(“periodend”);
// 封装成课程对象
Course course = new Course(cno,name, credit, periodstart, periodend);
//取出结果集中教师各个字段的值
int tno = rs.getInt(“tno”);
String tname = rs.getString(“tname”);
String password = rs.getString(“password”);
long phone = rs.getLong(“phone”);
Date hiredate = rs.getDate(“hiredate”);
String remark = rs.getString(“remark”);
//封装成教师对象
Teacher teacher = new Teacher(tno,tname, password, phone, hiredate, remark);
//将教师加入课程
course.setTeacher(teacher);
list.add(course);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return list;
}
}
[](()TeacherDaoImpl.java
package com.bluehonour.sscs.dao.impl;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import com.bluehonour.sscs.dao.TeacherDao;
import com.bluehonour.sscs.entity.Course;
import com.bluehonour.sscs.entity.Student;
import com.bluehonour.sscs.entity.Teacher;
import com.bluehonour.sscs.util.DBUtils;
public class TeacherDaoImpl implements TeacherDao {
@Override
public int save(Teacher teacher) {
String sql = "insert into t_teacher(tname,password,phone,hiredate,remark) values(?,?,?,?,?) ";
Object[] params = {teacher.getTname(),teacher.getPassword(),teacher.getPhone(),teacher.getHiredate(),teacher.getRemark()};
return DBUtils.executeUpdate(sql, params);
}
@Override
public List findAll() {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
List list = new ArrayList();
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
String sql = “select * from t_teacher order by tno”;
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
// 处理返回结果
while (rs.next()) {
// 取出结果集当前行各个字段的值
int tno = rs.getInt(“tno”);
String tname = rs.getString(“tname”);
String password = rs.getString(“password”);
long phone = rs.getLong(“phone”);
Date hiredate = rs.getDate(“hiredate”);
String remark = rs.getString(“remark”);
// 封装成对象
Teacher teacher = new Teacher(tno,tname, password, phone, hiredate, remark);
list.add(teacher);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return list;
}
@Override
public int delete(int tno) {
String sql = “delete from t_teacher where tno = ?”;
Object[] params = {tno };
return DBUtils.executeUpdate(sql, params);
}
@Override
public Teacher findById(int tno) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
Teacher teacher = null;
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
String sql = "select * from t_teacher where tno = " + tno;
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
// 处理返回结果
if (rs.next()) {
// 取出结果集当前行各个字段的值
String tname = rs.getString(“tname”);
String password = rs.getString(“password”);
long phone = rs.getLong(“phone”);
Date hiredate = rs.getDate(“hiredate”);
String remark = rs.getString(“remark”);
// 封装成对象
teacher = new Teacher(tno, tname, password, phone, hiredate, remark);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return teacher;
}
@Override
public int update(Teacher teacher) {
String sql = “update t_teacher set tname=?,password=?,phone=?,hiredate=?,remark=? where tno=?”;
Object[] params = {teacher.getTname(),teacher.getPassword(),teacher.getPhone(),teacher.getHiredate(),teacher.getRemark(),teacher.getTno()};
return DBUtils.executeUpdate(sql, params);
}
@Override
public List getAssumeCourse(int tno) {
Connection connection = null;
PreparedStatement preparedStatement = null;
ResultSet rs = null;
Course course = null;
List list = new ArrayList<>();
try {
// 建立连接
connection = DBUtils.getConnection();
// 向数据库发送sql命令并得到结果
String sql = "select c.* from t_tc tc " +
"LEFT JOIN t_teacher t on t.tno = tc.tno " +
"LEFT JOIN t_course c on c.cno = tc.cno " +
"where tc.tno = " + tno ;
preparedStatement = connection.prepareStatement(sql);
rs = preparedStatement.executeQuery();
// 处理返回结果
while (rs.next()) {
// 取出结果集当前行各个字段的值
int cno = rs.getInt(“cno”);
String name = rs.getString(“name”);
int credit = rs.getInt(“credit”);
Date periodstart = rs.getDate(“periodstart”);
Date periodend = rs.getDate(“periodend”);
// 封装成对象
course = new Course(cno,name, credit, periodstart, periodend);
list.add(course);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DBUtils.closeAll(rs, preparedStatement, connection);
}
return list;
}
}
[](()addAdmin.jsp
<%@ page language=“java” contentType=“text/html; charset=UTF-8”
pageEncoding=“UTF-8”%>
<%@ taglib prefix=“c” uri=“http://java.sun.com/jsp/jstl/core” %>
<%-- ${error }
--%><%
if(request.getAttribute(“error”) != null){
%>
<%
} else{
%>
<%
}
%>
请输入4-10位用户名
id=“userName” value=“”>请输入您的真实姓名
id=“passWord” value=“” size=“20px”>密码为6-16位
id=“rePassWord” value=“” size=“20px”>请再次输入密码
请输入年龄
请输入成绩
id=“enterDate” value=“” οnfοcus=“WdatePicker({highLineWeekDay:true,isShowToday:true,isShowWeek:true})”>请输入入职时间
[](()addCourse.jsp
<%@ page language=“java” contentType=“text/html; charset=UTF-8”
pageEncoding=“UTF-8”%>
<%@ taglib prefix=“c” uri=“http://java.sun.com/jsp/jstl/core” %>
<%
if(request.getAttribute(“error”) != null){
%>
<%
} else{
%>
<%
}
%>
${error }
[](()addStudent.jsp
<%@ page language=“java” contentType=“text/html; charset=UTF-8”
pageEncoding=“UTF-8”%>
<%@ taglib prefix=“c” uri=“http://java.sun.com/jsp/jstl/core” %>
<%
if(request.getAttribute(“error”) != null){
%>
<%
} else{
%>
<%
}
%>
请输入学生姓名
密码为6-16位
--请选择班级--
请输入班级
男
女
请输入手机号
请输入出生年月日
--请选择-- 优秀 良好 合格 差劲
请对该学生进行评论
${error }
[](()addTeacher.jsp
<%@ page language=“java” contentType=“text/html; charset=UTF-8”
pageEncoding=“UTF-8”%>
<%@ taglib prefix=“c” uri=“http://java.sun.com/jsp/jstl/core”%>
href=“
<%
if (request.getAttribute(“error”) != null) {
%>
<%
} else {
%>
<%
}
%>
method=“post”>
name=“name” value=“”>请输入教师姓名
id=“password” name=“password” value=“”>密码为6-16位
name=“tel” value=“”>请输入手机号
id=“hiredate” name=“hiredate” value=“”
οnfοcus=“WdatePicker({highLineWeekDay:true,isShowToday:true,isShowWeek:true})”>请输入入职时间
${error }
[](()四、其他
===================================================================
[](()1.其他系统实现
[](()JavaWeb系统系列实现
[Java+JSP实现学生图书管理系统](()
[Java+JSP实现学生信息管理系统](()
[Java+JSP实现用户信息管理系统](()
[Java+Servlet+JSP实现学生成绩管理系统](()
[Java+Servlet+JSP实现宠物诊所管理系统](()
[Java+SSM+Easyui实现网上考试系统](()
[Java+Springboot+H-ui实现营销管理系统](()
[Java+Springboot+Mybatis+Bootstrap实现网上商城系统](()
[](()JavaSwing系统系列实现[Java+Swing实现斗地主游戏](()
[Java+Swing实现图书管理系统](()
[Java+Swing实现医院管理系统](()
[Java+Swing实现仓库管理系统](()
[Java+Swing实现考试管理系统](()
[Java+Swing实现通讯录管理系统](()
[Java+Swing实现停车场管理系统](()
[Java+Swing实现学生信息管理系统](()
[Java+Swing实现学生宿舍管理系统](()
[Java+Swing实现学生选课管理系统](()
[Java+Swing实现学生成绩管理系统](()
[Java+Swing实现学校教材管理系统](()
[Java+Swing实现学校教务管理系统](()
[Java+Swing实现企业人事管理系统](()
[Java+Swing实现电子相册管理系统](()
[Java+Swing实现自助取款机(ATM)系统](()
[Java+Swing实现超市管理系统-TXT存储信息](()
[Java+Swing实现宠物商店管理系统-TXT存储信息](()
[](()2.获 《大厂前端面试题解析+Web核心总结学习笔记+企业项目实战源码+最新高清讲解视频》无偿开源 徽信搜索公众号【编程进阶路】 取源码
点击以下链接获取源码，数据库文件在sql文件夹下面。
[Java+JSP+Servlet+Mysql实现Web学生选课管理系统源码](()
[](()3.备注
[](()4.鸡汤
运动使人轻松！
[
阅读世界，共赴山海
423全民读书节，邀你共读
](https://blog.csdn.net/programmer_editor/article/details/124121252?utm_campaign=marketingcard&utm_source=helongqiang&utm_content=118162212)
me=“remark” id=“remark-id”
style=“width: 700px; height: 200px; visibility: hidden; display: block;”>
${error }[](()四、其他
===================================================================
[](()1.其他系统实现
[](()JavaWeb系统系列实现
[Java+JSP实现学生图书管理系统](()
[Java+JSP实现学生信息管理系统](()
[Java+JSP实现用户信息管理系统](()
[Java+Servlet+JSP实现学生成绩管理系统](()
[Java+Servlet+JSP实现宠物诊所管理系统](()
[Java+SSM+Easyui实现网上考试系统](()
[Java+Springboot+H-ui实现营销管理系统](()
[Java+Springboot+Mybatis+Bootstrap实现网上商城系统](()
[](()JavaSwing系统系列实现[Java+Swing实现斗地主游戏](()
[Java+Swing实现图书管理系统](()
[Java+Swing实现医院管理系统](()
[Java+Swing实现仓库管理系统](()
[Java+Swing实现考试管理系统](()
[Java+Swing实现通讯录管理系统](()
[Java+Swing实现停车场管理系统](()
[Java+Swing实现学生信息管理系统](()
[Java+Swing实现学生宿舍管理系统](()
[Java+Swing实现学生选课管理系统](()
[Java+Swing实现学生成绩管理系统](()
[Java+Swing实现学校教材管理系统](()
[Java+Swing实现学校教务管理系统](()
[Java+Swing实现企业人事管理系统](()
[Java+Swing实现电子相册管理系统](()
[Java+Swing实现自助取款机(ATM)系统](()
[Java+Swing实现超市管理系统-TXT存储信息](()
[Java+Swing实现宠物商店管理系统-TXT存储信息](()
[](()2.获 《大厂前端面试题解析+Web核心总结学习笔记+企业项目实战源码+最新高清讲解视频》无偿开源 徽信搜索公众号【编程进阶路】 取源码
点击以下链接获取源码，数据库文件在sql文件夹下面。
[Java+JSP+Servlet+Mysql实现Web学生选课管理系统源码](()
[](()3.备注
[](()4.鸡汤
运动使人轻松！
[
阅读世界，共赴山海 [外链图片转存中…(img-koCKwP9V-1651133294695)]
423全民读书节，邀你共读
](https://blog.csdn.net/programmer_editor/article/details/124121252?utm_campaign=marketingcard&utm_source=helongqiang&utm_content=118162212)
