StuDao.java
package com.ga;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import com.gd.Stu;
public class StuDao {
//学生数据访问类
//添加学生
public int addStu(Stu s){
int i=0;
try {
//加载驱动
Class.forName("com.mysql.jdbc.Driver");
//建立连接
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/mysql", "root", "123456");
//写SQL语句
String sql="insert into stu(uname,upwd) values(?,?)";
//执行
PreparedStatement ps=con.prepareStatement(sql);
ps.setString(1, s.getUname());
ps.setString(2, s.getUpwd());
i=ps.executeUpdate();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return i;
}
}
Stu.java
package com.gd;
public class Stu {
private int sid;
private String uname;
private String upwd;
//访问器
public int getSid() {
return sid;
}
public void setSid(int sid) {
this.sid = sid;
}
public String getUname() {
return uname;
}
public void setUname(String uname) {
this.uname = uname;
}
public String getUpwd() {
return upwd;
}
public void setUpwd(String upwd) {
this.upwd = upwd;
}
//构造器
public Stu(int sid, String uname, String upwd) {
super();
this.sid = sid;
this.uname = uname;
this.upwd = upwd;
}
public Stu() {
super();
}
}
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form name="form1" method="post" action="control.jsp" >
<table>
<tr>
<td>用户名：</td>
<td> <input type="text" name="uname" id="userName" ></td>
</tr>
<tr>
<td>输入登录密码：</td>
<td><input type="password" name="upwd" id="pwd"></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="注册"></td>
</tr>
</table>
</form>
</body>
</html>
control.jsp
<%@page import="com.ga.StuDao"%>
<%@page import="com.gd.Stu"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
Stu s = new Stu();
String uname = request.getParameter("uname");
s.setUname(uname);
String upwd = request.getParameter("upwd");
s.setUpwd(upwd);
StuDao sd=new StuDao();
if(sd.addStu(s)>0){
//跳转注册成功页面
}else{
//错误页面
}
%>
%>
<%
if(uname.equals("ysp")&&upwd.equals("123")){
//跳转成功登录页面
request.getRequestDispatcher("welcome.jsp").forward(request, response);
session.setAttribute("uname",uname);
}
else{
request.getRequestDispatcher("index.jsp").forward(request, response);
}
%>
welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'welcome.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
成功登录！ <br>
</body>
</html>
