jsp注册页面代码

来源：互联网发布：sql中limit的用法编辑：程序博客网时间：2024/05/08 18:42

用户信息的bean：

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;
        }

}

提交数据库的bean：

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;
                }

}
}

提交注册数据进入数据库：

<%@ page contentType="text/html;charset=gb2312" pageEncoding="gb2312"
import="chen.*" %>
<jsp:useBean id="userBean" class="chen.UserBean" scope="request">
<jsp:setProperty name="userBean" property="*"/>
</jsp:useBean>
<jsp:useBean id="regist" class="chen.UserRegister" 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>

登陆验证页面：

< import="java.sql.*" contentType="text/html;charset=GB2312" %>
< 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");
}
%>

登陆页面：

<%@ 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>

注册页面：

< 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>

登陆成功页面：

< import="java.util.*" contentType="text/html; charset=gb2312" %>
< 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>

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