一个注册界面
<%@page import="com.jaovo.msg.dao.UserDaoImpl"%>
<%@page import="com.jaovo.msg.model.User"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<%
//接收客户端传递过来的参数
String name = request.getParameter("课程名称");
String teacher = request.getParameter("任课教师");
String place = request.getParameter("上课地点");
User user = new User();
user.setUsername(name);
user.setPassword(teacher);
user.setNickname(place);
UserDaoImpl userDao = new UserDaoImpl();
userDao.add(user);
%>
<%="注册成功！" %><br>
<a href = "list.jsp">查看所有信息</a>
<a href = "loginwindow.jsp">登录</a><br>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>用户添加页面</title>
</head>
<body>
<div align = "center">
<form action="add.jsp" method="get">
<table>
<tr>
<td>课程名称:</td>
<td><input type="text" name="课程名称" /></td>
</tr>
<tr>
<td>任课教师:</td>
<td><input type="password" name="任课教师" /></td>
</tr>
<tr>
<td>上课地点:</td>
<td><input type="text" name="上课地点" /></td>
</tr>
</table>
<input type="submit" value="保存" />
<input type="reset" value="重置" />
</form>
</div>
</body>
</html>
package com.jaovo.msg.Util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DBUtil {
public static Connection getConnection() {
try {
//1 加载驱动
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String user = "root";
String password = "root";
String url = "jdbc:mysql://localhost:3306/jaovo_msg";
Connection connection = null;
try {
//2 创建链接对象connection
connection = DriverManager.getConnection(url,user,password);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return connection;
}
//关闭资源的方法
public static void close(Connection connection ) {
try {
if (connection != null) {
connection.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void close(PreparedStatement preparedStatement ) {
try {
if (preparedStatement != null) {
preparedStatement.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void close(ResultSet resultSet ) {
try {
if (resultSet != null) {
resultSet.close();
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public class UserDaoImpl implements IUserDao {
@Override
public void add(User user) {
//获得链接对象
Connection connection = DBUtil.getConnection();
PreparedStatement preparedStatement = null;
ResultSet resultSet = null;
try {
String sql = "insert into class(课程名称,任课教师,上课地点) value (?,?,?)";
preparedStatement = connection.prepareStatement(sql);
preparedStatement.setString(1, user.getUsername());
preparedStatement.setString(2, user.getPassword());
preparedStatement.setString(3, user.getNickname());
preparedStatement.executeUpdate();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally {
//关闭资源
DBUtil.close(resultSet);
DBUtil.close(preparedStatement);
DBUtil.close(connection);
}
}
}
package com.jaovo.msg.model;
public class User {
private String name;
private String place;
private String teacher;
public String getUsername() {
return name;
}
public void setUsername(String name) {
this.name = name;
}
public String getNickname() {
return place;
}
public void setNickname(String place) {
this.place = place;
}
public String getPassword() {
return teacher;
}
public void setPassword(String teacher) {
this.teacher = teacher;
}
}
截图