本文目录一览：
jsp 登陆界面的代码
登录判断的页面代码
%@ page contentType="text/html; charset=gb2312"%
%@ page import="java.sql.*"%
%@ page import="java.util.*"%
%@ include file="conn.jsp"%
%request.setCharacterEncoding("gb2312");
Statement stat=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String name=request.getParameter("name");
String password=request.getParameter("password");
ResultSet rs=stat.executeQuery("select * from sjb where name='"+name+"'and pass='"+password+"'");
%
%if(rs.next()){%
%String shenfen=rs.getString(6);
session.setAttribute("name",name);
response.sendRedirect("index1.jsp");
}else{
out.print("帐号密码输入错误");%
a href="index1.jsp"点击返回/a
%}%
登录输入时的代码
form action="login.jsp" method="post" name="form1" class="STYLE1" id="form1"
帐号
label
input name="name" type="text" id="name" tabindex="1" size="13" maxlength="13" /
/label
A href="regedit.jsp"注册/A
密码
label
input name="password" type="password" id="password" size="13" maxlength="13" /
/label
a href="forget.jsp"忘记/a
label
input type="submit" name="Submit" value="确定" /
/label
label
input type="reset" name="Submit2" value="重填" /
/label
/form
编写用户注册于登录的JSP页面的全部程序代码
3个jsp文件，第一个是login.jsp,第二个是judge.jsp,第三个是afterLogin.jsp
%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%
%@ page import="java.util.*" %
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
title登录页面/title
/head
body
form name="loginForm" method="post" action="judgeUser.jsp"
table
tr
td用户名:input type="text" name="userName" id="userName"/td
/tr
tr
td密码:input type="password" name="password" id="password"/td
/tr
tr
tdinput type="submit" value="登录" style="background-color:pink" input type="reset" value="重置" style="background-color:red"/td
/tr
/table
/form
/body
/html
%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%
%@ page import="java.util.*" %
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
title身份验证/title
/head
body
%
request.setCharacterEncoding("GB18030");
String name = request.getParameter("userName");
String password = request.getParameter("password");
if(name.equals("abc") password.equals("123")) {
%
jsp:forward page="afterLogin.jsp"
jsp:param name="userName" value="%=name%"/
/jsp:forward
%
}
else {
%
jsp:forward page="login.jsp"/
%
}
%
/body
/html
%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
title登录成功/title
/head
body
%
request.setCharacterEncoding("GB18030");
String name = request.getParameter("userName");
out.println("欢迎你:" + name);
%
/body
/html
求JSP登陆界面代码
给你提供一下思路吧。1.输入界面：输入用户名和密码。2.处理界面：获取提交过来的数据（用户名和密码），然后进行验证。 然后填写正确时，跳转成功的界面；不正确时，跳转失败的界面。3.创建成功界面与失败界面。你看这样能理解吗？ 追问： 可以理解，但是我不会写代码。 回答： 那我给你先写一个简单的把。等会啊。 补充： 登录界面：%@ page language="java" pageEncoding="GBK"%htmlheadtitle登录界面/title/headbodydiv align="center" form action="validate.jsp" method="post" 用户名：input type="text" name="myName"br 密码：input type="password" name="myPass"br input type="submit" value="登录"/form/div/body/html登录验证界面：%@ page language="java" pageEncoding="GBK"%%//处理中文乱码 request.setCharacterEncoding("GBK"); //获取提交的元素 String pass=request.getParameter("myPass");//业务处理if("admin".equals(name) "admin".equals(pass)){response.sendRedirect("yes.jsp");}else{response.sendRedirect("no.jsp");}%成功界面：%@ page language="java" pageEncoding="GBK"%htmlheadtitle成功界面/title/headbody登录成功！/body/html
jsp登陆界面源代码
1、login.jsp文件
%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%
%@ page import="java.util.*" %
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
title登录页面/title
/head
body
form name="loginForm" method="post" action="judgeUser.jsp"
table
tr
td用户名:input type="text" name="userName" id="userName"/td
/tr
tr
td密码:input type="password" name="password" id="password"/td
/tr
tr
tdinput type="submit" value="登录" style="background-color:pink" input
type="reset" value="重置" style="background-color:red"/td
/tr
/table
/form
/body
/html
2、judge.jsp文件
%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%
%@ page import="java.util.*" %
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
title身份验证/title
/head
body
%
request.setCharacterEncoding("GB18030");
String name = request.getParameter("userName");
String password = request.getParameter("password");
if(name.equals("abc") password.equals("123")) {
3、afterLogin.jsp文件
%
jsp:forward page="afterLogin.jsp"
jsp:param name="userName" value="%=name%"/
/jsp:forward
%
}
else {
%
jsp:forward page="login.jsp"/
%
}
%
/body
/html
%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%
!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
html
head
title登录成功/title
/head
body
%
request.setCharacterEncoding("GB18030");
String name = request.getParameter("userName");
out.println("欢迎你:" + name);
%
/body
/html
扩展资料：
java web登录界面源代码：
1、Data_uil.java文件
import java.sql.*;
public class Data_uil
{
public Connection getConnection()
{
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
}catch(ClassNotFoundException e)
{
e.printStackTrace();
}
String user="***";
String password="***";
String url="jdbc:sqlserver://127.0.0.1:1433;DatabaseName=***";
Connection con=null;
try{
con=DriverManager.getConnection(url,user,password);
}catch(SQLException e)
{
e.printStackTrace();
}
return con;
}
public String selectPassword(String username)
{
Connection connection=getConnection();
String sql="select *from login where username=?";
PreparedStatement preparedStatement=null;
ResultSet result=null;
String password=null;
try{
preparedStatement=connection.prepareStatement(sql);
preparedStatement.setString(1,username);
result=preparedStatement.executeQuery();//可执行的 查询
if(result.next())
password=result.getString("password");
}catch(SQLException e){
e.printStackTrace();
}finally
{
close(preparedStatement);
close(result);
close(connection);
}
System.out.println("找到的数据库密码为："+password);
return password;
}
public void close (Connection con)
{
try{
if(con!=null)
{
con.close();
}
}catch(SQLException e)
{
e.printStackTrace();
}
}
public void close (PreparedStatement preparedStatement)
{
try{
if(preparedStatement!=null)
{
preparedStatement.close();
}
}catch(SQLException e)
{
e.printStackTrace();
}
}
public void close(ResultSet resultSet)
{
try{
if(resultSet!=null)
{
resultSet.close();
}
}catch(SQLException e)
{
e.printStackTrace();
}
}
}
2、login_check.jsp:文件
%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%
!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" ""
html
head
meta http-equiv="Content-Type" content="text/html; charset=utf-8"
title验证用户密码/title
/head
body
jsp:useBean id="util" class="util.Data_uil" scope="page" /
%
String username=(String)request.getParameter("username");
String password=(String)request.getParameter("password");
if(username==null||"".equals(username))
{
out.print("script language='javaScript' alert('用户名不能为空');/script");
response.setHeader("refresh", "0;url=user_login.jsp");
}
else
{
System.out.println("输入的用户名:"+username);
String passwordInDataBase=util.selectPassword(username);
System.out.println("密码："+passwordInDataBase);
if(passwordInDataBase==null||"".equals(passwordInDataBase))
{
out.print("script language='javaScript' alert('用户名不存在');/script");
response.setHeader("refresh", "0;url=user_login.jsp");
}
else if(passwordInDataBase.equals(password))
{
out.print("script language='javaScript' alert('登录成功');/script");
response.setHeader("refresh", "0;url=loginSucces.jsp");
}
else
{
out.print("script language='javaScript' alert('密码错误');/script");
response.setHeader("refresh", "0;url=user_login.jsp");
}
}
%
/body
/html
3、loginSucces.jsp文件
%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%
!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" ""
html
head
meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"
titleInsert title here/title
/head
body
hr size="10" width="26%" align="left" color="green"
font size="6" color="red" 登录成功 /font
hr size="10" width="26%" align="left" color="green"
/body
/html
4、user_login.jsp文件
%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%
!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" ""
html
head
meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"
title登录界面/title
/head
body background="C:\Users\win8\workspace\Login\image\9dcbdc339e72a5663b5c289fb5573c13_10.jpg"
center
brbrbrbrbrbr
h1 style="color:yellow"Login/h1
br
form name="loginForm" action="login_check.jsp" method="post"
table Border="0"
tr
td账号/td
tdinput type="text" name="username"/td
/tr
tr
td密码/td
tdinput type="password" name="password"
/td
/tr
/table
br
input type="submit" value="登录" style="color:#BC8F8F"
/form
/center
/body
/html
jsp实现简单的登录界面
index.jsp是本页面：
html
body
form action=manager.jsp name=form1 method=post
input type="text" name=name input type="password" name=password
input type="submit" value="登录" name="submit" 管理
/body
managet.jsp是要登录的页面：
%String name=request.getParameter("name");
String password=request.getParameter("password");
if(name=="cxh" password=="11011")
{
%
jsp:forward page="manager.jsp" /
%
}
else{ %
jsp:forward page="index.jsp" /
%}
%
这样才是提交嘛~~~你试试~
