jsp注册页面代码 待改写
jsp注册页面代码
网上抄下来的，想用在自己的项目里面，改动了不少，越来越感觉程序写的复杂，视图和控制，还有数据库混在一起，错误处理代码写的很烂.....
用户信息的bean： UserBean.java
package chen;public class UserBean{ private String userid; private String password; public void setUserId(String userid) { this.userid=userid; } public void setPassword(String password) { this.password=password; } public String getUserId() { return this.userid; } public String getPassword() { return this.password; }}package chen;import com.mysql.jdbc.Driver;import java.sql.*;public class UserRegister{ private UserBean userBean; private Connection con; //获得数据库连接。 public UserRegister() { String url="jdbc:mysql://localhost/"+"chao"+"?user="+"root"+"&password="+"850629"; try { Class.forName("com.mysql.jdbc.Driver").newInstance(); con = DriverManager.getConnection(url); } catch(Exception e) { e.printStackTrace(); } } //设置待注册的用户信息。 public void setUserBean(UserBean userBean) { this.userBean=userBean; } //进行注册 public void regist() throws Exception { String reg="insert into userinfo(userid,password) values(?,?)"; try { PreparedStatement pstmt=con.prepareStatement(reg); pstmt.setString(1,userBean.getUserId()); pstmt.setString(2,userBean.getPassword()); pstmt.executeUpdate(); } catch(Exception e) { e.printStackTrace(); throw e; } }}<%@ page contentType="text/html;charset=gb2312" pageEncoding="gb2312"import="chen.*" %><jsp:useBean id="userBean" scope="request"><jsp:setProperty name="userBean" property="*"/></jsp:useBean><jsp:useBean id="regist" scope="request"/><html><head><title> 用户信息注册页面</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body><%String userid =request.getParameter("userid");String password = request.getParameter("password");userBean.setUserId(userid);userBean.setPassword(password);System.out.println(userid+password);%><% try{ regist.setUserBean(userBean); out.println(userid); regist.regist(); out.println("注册成功");} catch(Exception e){ out.println(e.getMessage()); }%><br><a href="login.jsp">返回</a></body></html><%@page import="java.sql.*" contentType="text/html;charset=GB2312" %><%@page import="java.util.*"%><% String userid1=new String(request.getParameter("userid")); String password1=new String(request.getParameter("password"));Class.forName("com.mysql.jdbc.Driver");Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/chao","root","850629");Statement stmt=con.createStatement();String sql="select * from userinfo where userid='"+userid1+"';";ResultSet rs=stmt.executeQuery(sql); if(rs.next()) {String password=new String(rs.getString("password")); if(password.equals(password1)) {session.setAttribute("userid1",userid1); response.sendRedirect("sucess.jsp"); } else{response.sendRedirect("login.jsp");}}else{response.sendRedirect("login.jsp");}%><%@ page contentType="text/html; charset=gb2312" %><html><body><form method="get" action="checklogin.jsp"><table><tr><td> 输入用户名：</td><td><input type=text name=userid ></td></tr><tr><td>输入密码：</td><td><input type=password name=password></td></tr><tr><td><input type=submit value=确认></td></tr></table></form><form action="register.jsp"><input type=submit value=注册></form></body></html>
<%@page contentType="text/html; charset=gb2312" language="java" import="java.util.*,java.io.*"%><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body><center> <h1>注册新用户</h1> <form action="adduser.jsp" method=post> <table border="1" bgcolor="#0099CC"> <tr> <td> 用户名: <input type="text" name="userid"> </td> </tr> <tr valign="middle"> <td> 密码： <input type="password" name="password" readonly> </td> </tr> <tr> <td> <input type=submit value=提交> </td> </tr> </table> </form></center></body></html>
<%@page import="java.util.*" contentType="text/html; charset=gb2312" %><%@include file="trans.jsp"%><html><head><title>sucess</title></head><body bgcolor="#ffffff"><h1>登录成功，欢迎您！</h1><%=trans(session.getAttribute("userid1"))%></body></html>