-------------------
redirect 浏览器重定向
-------------------
HelloWorld.java:
package blog.action;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
public class HelloWorld {
private String msg;
private String uname;
public String getUname() {
return uname;
}
public void setUname(String uname) {
this.uname = uname;
}
public String getMessage() {
return msg;
}
public String execute(){
try {
uname = URLEncoder.encode("张三","UTF-8");//ISO8859-1
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
msg = "This is my first struts2 application!!!";
return "success";
}
}
struts.xml:
<?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>
<package name="blog" namespace="/control/employee" extends="struts-default">
<action name="add" class="blog.action.HelloWorld" method="execute">
<result name="success" type="redirect">/addEmployee.jsp?username=${uname}</result>
</action>
</package>
</struts>
addEmployee.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="java.net.URLDecoder"%>
<%
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%>">
<title>My JSP 'addEmployee.jsp' starting page</title>
</head>
<body>
${param.username }<br/>
<%=URLDecoder.decode( new String(request.getParameter("username").getBytes("ISO8859-1"),"UTF-8"),"UTF-8" )%>
姓名： <input type="text" name="name">
<BR/>
uname:${uname }<!-- 如果采用的是浏览器重定向的方式访问那么就无法得到值 -->
</body>
</html>
效果图：
-------------------
redirectAction 重定向到另一个Actoin[分包内和包外]
-------------------
struts.xml:
<?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>
<package name="blog" namespace="/control/employee" extends="struts-default">
<action name="add" class="blog.action.HelloWorld" method="execute">
<result name="success" type="redirect">/addEmployee.jsp?username=${uname}</result>
</action>
<!--包外-->
<action name="delDept">
<result name="success" type="redirectAction">
<param name="actionName">delete</param>
<param name="namespace">/control/department</param>
</result>
</action>
<!--包内-->
<action name="addRedirect">
<result name="success" type="redirectAction">add</result>
</action>
</package>
<package name="other" namespace="/control/department" extends="struts-default">
<action name="delete">
<result>/WEB-INF/page/delDept.jsp</result>
<!--缺少/WEB-INF/page/将无法访问-->
</action>
</package>
</struts>
对于包外的情况，<result/>节点下的<param/>两个参数的name的值可以在struts-corexxxx.jar包中找到struts-defaul.xml中找到actionRedirect的实现类org.apache.struts2.dispatcher.ServletActionRedirectResult
这个类中有两个方法setActionName和setNamespace，这就是那两个参数的来历。
-------------------
plainText 显示一个jsp页面的源码
-------------------
<action name="plainText"><result type="plainText">
<param name="location">/addEmployee.jsp</param>
<param name="charSet">UTF-8</param><!-- 指定读取文件的编码 -->
</result>
<!--在无需转码的情况下：
<result type="plainText">/addEmployee.jsp</result>
-->
