七周
作者：互联网
package com.bean;
public class Stu {
private int sid;
private String uname;
private String upwd;
public int getSid() {
return sid;
}
public void setSid(int sid) {
this.sid = sid;
}
public String getUname() {
return uname;
}
public void setUname(String name) {
this.uname = uname;
}
public String getUpwd() {
return upwd;
}
public void setUpwd(String upwd) {
this.upwd = upwd;
}
public Stu(int sid, String name, String upwd) {
super();
this.sid = sid;
this.uname =uname;
this.upwd = upwd;
}
public Stu() {
super();
}
}
package com.dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import com.bean.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", "root");
//写SQL语句
String sql="insert into stu values(?,?,?)";
//执行
PreparedStatement ps=con.prepareStatement(sql);
ps.setInt(1, s.getSid());
ps.setString(2, s.getUname());
ps.setString(3, s.getUpwd());
i=ps.executeUpdate();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return i;
}
//登录
public int dlStu(Stu s){
int i=0;
ResultSet rs =null;
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", "root");
//写SQL语句
String sql="select uname,upwd from stu where uname=? and upwd=?";
//执行
PreparedStatement ps=con.prepareStatement(sql);
ps.setInt(1, s.getSid());
ps.setString(2, s.getUname());
ps.setString(3, s.getUpwd());
i=ps.executeUpdate();
if(rs.next()){
System.out.print("用户登录成功");
i=1;
}else{
System.out.print("用户登录失败");
i=0;
}
rs.close();
ps.close();
con.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return i;
}
}
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<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="control.jsp" method="post" action="" >
<table>
<tr>
<td>编号：</td>
<td><input type="text" name="sid" id="userNmae"></td>
</tr>
<tr>
<td>用户名：</td>
<td><input type="text" name="uname" id="userNmae"></td>
</tr>
<tr>
<td>输入密码：</td>
<td><input type="password" name="upwd" id="pwd"></td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" value="登录"> <button type="button" name="button2" value="注册" onClick="zhuce.jsp">注册</button>
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'zhuce.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="zccontrol.jsp" method="post" >
<table>
<tr>
<td>用户名：</td>
<td><input type="text" name="uname" id="userNmae"></td>
</tr>
<tr>
<td>输入密码：</td>
<td><input type="text" name="upwd" id="pwd"></td>
</tr>
<tr>
<td>请再次确认密码：</td>
<td><input type="text" name="upwd" id="userNmae"></td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="注册"></td>
</tr>
</table>
</form>
</body>
</html>
<%@ 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 'zccg.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>
<%
String s1 = (String) session.getAttribute("sid");
String s2 = (String) session.getAttribute("uname");
String s3 = (String) session.getAttribute("upwd");
%>
<div align="center">
<h1>WECLOME</h1>
<h1>欢迎登录</h1>
你输入的登录信息
<table>
<tr>
<td>编号:</td>
<td>
<h2>
<span><%=s1%></span>
</h2>
</td>
</tr>
<tr>
<td>用户名:</td>
<td>
<h2>
<span><%=s2%></span>
</h2>
</td>
</tr>
<tr>
<td>密码:</td>
<td><%=s3%></td>
</tr>
</table>
</div>
</body>
</html>
<%@ 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 'zccg.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>
<h1>注册成功</h1>
<button type="button" name="button1" value="退出" onClick="index.jsp">返回登录</button>
</body>
</html>
<%@page import="com.dao.StuDao"%>
<%@page import="com.bean.Stu"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
Stu s = new Stu();
int sid = Integer.parseInt(request.getParameter("sid"));
s.setSid(sid);
String uname = request.getParameter("uname");
s.setUname(uname);
String upwd = request.getParameter("upwd");
s.setUpwd(upwd);
StuDao sd = new StuDao();
if (sd.dlStu(s) > 0) {
//跳转登录成功页面
session.setAttribute("id",sid);
session.setAttribute("uname", uname);
session.setAttribute("upwd", upwd);
response.sendRedirect("dlcg.jsp");
} else {
//错误页面
out.print("登陆失败");
}
%>
<%@page import="com.dao.StuDao"%>
<%@page import="com.bean.Stu"%>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
Stu s = new Stu();
int id = Integer.parseInt(request.getParameter("sid"));
s.setSid(id);
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
session.setAttribute("uname", uname);
session.setAttribute("upwd", upwd);
response.sendRedirect(request.getContextPath() + "/zhuce.jsp");
} else {
out.print("注册失败！");
}
%>h
标签：ps,七周,String,upwd,uname,sid,public 来源： https://www.cnblogs.com/xxy02160216/p/14673485.html