Struts2视图转发类型
?在Struts2中result的视图转发类型比较常用的有四种：dispathcher(默认值)：服务器内部请求转发类型;? redirect：重定向到某个jsp文件;? redirectAction:重定向到某个action;? plainText:他主要用在输出页面源代码。在struts.xml中配置如下:?>
2 <!DOCTYPE struts PUBLIC
3 "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
4 "http://struts.apache.org/dtds/struts-2.0.dtd">
5
6 <struts>
7 <package name="lz" namespace="/control/employee" extends="struts-default">
8 <!-- 浏览器重定向到修改界面 -->
9 <action name="redirect" class="com.lz.action.UserName" method="execute">
10 <result name="success" type="redirect">/redirect.jsp?username=${Savepath}</result>?在web.xml中：?>
2 <web-app version="2.4"
3 xmlns="http://java.sun.com/xml/ns/j2ee"
4 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
5 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
6 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
7
8 <filter>
9 <filter-name>struts2</filter-name>
10 <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
11 </filter>
12 <filter-mapping>
13 <filter-name>struts2</filter-name>
14 <url-pattern>/*</url-pattern>
15 </filter-mapping>
16
17 <welcome-file-list>
18 <welcome-file>index.jsp</welcome-file>
19 </welcome-file-list>
20 </web-app>?再定义一个UserName.java?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="lz" namespace="/control/employee" extends="struts-default">
<action name="redirectAction" class="com.lz.action.UserName" method="execute">
<result name="success" type="redirectAction">/hello</result>
</action>
</package>
<package name="other" namespace="/control/department" extends="struts-default">
<action name="redirect">
<result>/index.jsp</result>
</action>
</package>
</struts>?这样在浏览器中输入：http://localhost:8080/control/department/redirect.action就会跳到hello.jsp页面里。?还有最后一种：plainText。他主要用在输出页面源代码。如下所示：修改struts.xml文件。?<action name="plainText">
<result type="plainText">
<param name="location">/redirect.jsp</param>
<param name="charSet">UTF-8</param><!-- 制定读取文件的编码 -->
</result>
</action>?<%@ page language="java" import="java.util.*,java.net.URLDecoder" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>redrect</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
</head>
<body>
你好！
</body>
</html>??这样，就可以输出redirect.jsp的源码了。并且可以支持中文格式的了。??
