struts2 的3种驱动 第二种方式 对象驱动

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[size=x-large]第二种是:将对象写在action中:[/size]

[color=red]在action中 我只写了一个user 对象 :

action 中的内容:[/color]

package com.luhua.test;

import com.luhua.pojo.User;

public class UserAction {

//用户

private User user ;

public void setUser(User user) {

this.user = user;

}

public String user(){

System.out.println(user.getUsername());

return “success” ;

}

public String execute(){

return “success” ;

}

}

[color=red]user类中:只有一个username的属性,并提供了get和set方法[/color]

package com.luhua.pojo;

import java.io.Serializable;

public class User implements Serializable {

private static final long serialVersionUID = 1L;

public User(){}

private String username ;

public String getUsername() {

return username;

}

public void setUsername(String username) {

this.username = username;

}

}

[color=red]在struts.xml中的配置是:[/color]

<?xml version=”1.0″ encoding=”UTF-8″ ?>

<!DOCTYPE struts PUBLIC

“-//Apache Software Foundation//DTD Struts Configuration 2.0//EN”

“http://struts.apache.org/dtds/struts-2.0.dtd”>

<struts>

<constant name=”struts.devMode” value=”true” />

<package name=”default” namespace=”/” extends=”struts-default”>

<action name=”welcome” class=”com.luhua.test.UserAction” method=”execute”>

<result name=”success”>index.jsp</result>

</action>

<action name=”user” class=”com.luhua.test.UserAction” method=”user”>

<result name=”success”>success.jsp</result>

</action>

</package>

</struts>

[color=red]jsp页面有两张,index.jsp 和 success.jsp 从index.jsp中输入用户名; 在action中打印出来[/color]

[color=red]页面的输入的name必须是对象名.属性名[/color]

[color=red]index.jsp:[/color]

<%@ page language=”java” import=”java.util.*” pageEncoding=”ISO-8859-1″%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+”://”+request.getServerName()+”:”+request.getServerPort()+path+”/”;

%>

<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>

<html>

<head>

<base href=”<%=basePath%>”>

</head>

<body>

<form action=”user” method=”post”>

username:<input type=”text” name=”user.username”/>

<input type=”submit”/>

</form>

</body>

</html>

[color=red]success.jsp[/color]

<%@ page language=”java” import=”java.util.*” pageEncoding=”utf-8″%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+”://”+request.getServerName()+”:”+request.getServerPort()+path+”/”;

%>

<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN”>

<html>

<head>

<base href=”<%=basePath%>”>

</head>

<body>

user

</body>

</html>



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