一个简单实现登陆控制的struts2框架
2012-12-02 21:20
417 查看
新建web工程并添加struts(struts选择2.1)框架支持
一、在web.xml中添加拦截器
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
二、写三个视图jsp页面
1、login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Login Page</title>
</head>
<body>
<s:form action="login">
<s:textfield name="username" key="Username" />
<br>
<s:textfield name="password" key="Password" />
<br>
<s:submit value="Login" />
</s:form>
</body>
</html>
2、error.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Error page</title>
</head>
<body>
Error Page!
</body>
</html>
3、welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Welcome page</title>
</head>
<body>
Welcome Page!
</body>
</html>
三、写LoginAction类
package struts2.action;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String execute() throws Exception {
String url = "input";
if (getUsername().equals("yuyinhe") && getPassword().equals("yuyinhe")) {
url = "success";
} else {
url = "error";
}
return url;
}
}
四、配置struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="yyh" extends="struts-default">
<action name="login" class="struts2.action.LoginAction">
<result name="input">/login.jsp</result>
<result name="error">/error.jsp</result>
<result name="success">/welcome.jsp</result>
</action>
</package>
</struts>
一、在web.xml中添加拦截器
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
二、写三个视图jsp页面
1、login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Login Page</title>
</head>
<body>
<s:form action="login">
<s:textfield name="username" key="Username" />
<br>
<s:textfield name="password" key="Password" />
<br>
<s:submit value="Login" />
</s:form>
</body>
</html>
2、error.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Error page</title>
</head>
<body>
Error Page!
</body>
</html>
3、welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Welcome page</title>
</head>
<body>
Welcome Page!
</body>
</html>
三、写LoginAction类
package struts2.action;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String execute() throws Exception {
String url = "input";
if (getUsername().equals("yuyinhe") && getPassword().equals("yuyinhe")) {
url = "success";
} else {
url = "error";
}
return url;
}
}
四、配置struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="yyh" extends="struts-default">
<action name="login" class="struts2.action.LoginAction">
<result name="input">/login.jsp</result>
<result name="error">/error.jsp</result>
<result name="success">/welcome.jsp</result>
</action>
</package>
</struts>
相关文章推荐
- 用java实现一个简单的单用户登陆功能的思路
- 利用ASIHTTPRequest 实现一个简单的登陆验证
- 一个简单的线程池工具类——可以实现对单个线程的控制
- [安卓初学者实验]实现一个简单仿qq登陆界面
- 一个简单的登陆页面实现
- 【IOS】利用ASIHTTPRequest 实现一个简单的登陆验证
- 【IOS】利用ASIHTTPRequest 实现一个简单的登陆验证
- 【MVC】使用Servlet 作为控制器实现一个简单的登陆验证
- (14)树莓派B+使用L298N驱动控制四驱车并实现一个简单的web控制端
- 分享实现类似QQ的自动登陆的方法,代码比较简单,主要是给大家提供一个实现逻辑,具体的要结合自身的app来做
- 一个系统从登陆到数据库交互的简单实现(java)
- 一个利用CAN实现车辆控制的简单模板
- 一个简单的学生登陆系统的jsp实现之登陆主页面main.jsp
- SSH实现一个简单的权限控制实例(二)
- 第26篇:AngularJS+ui-router实现一个超简单的登陆和跳转的二级路由demo
- 一个简单登陆示例的MVC和MVP实现
- 一个简单的学生登陆系统的jsp实现_1
- SSH实现一个简单的权限控制实例(三)
- 一个简单的springboot的案例实现一个请求控制层返回一个JSON
- 实现简单登陆 session绑定控制