jsp实现登陆界面代码（jsp简单登录界面代码）

本文目录一览：

1、jsp 登陆界面的代码
2、编写用户注册于登录的JSP页面的全部程序代码
3、求JSP登陆界面代码
4、jsp登陆界面源代码
5、jsp实现简单的登录界面

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

td用户名:input type="text" name="userName" id="userName"/td

/tr

td密码:input type="password" name="password" id="password"/td

/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"brinput 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

td用户名:input type="text" name="userName" id="userName"/td

/tr

td密码:input type="password" name="password" id="password"/td

/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:Userswin8workspaceLoginimage9dcbdc339e72a5663b5c289fb5573c13_10.jpg"

center

brbrbrbrbrbr

h1 style="color:yellow"Login/h1

form name="loginForm" action="login_check.jsp" method="post"

table Border="0"

td账号/td

tdinput type="text" name="username"/td

/tr

td密码/td

tdinput type="password" name="password"

/td

/tr

/table

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~