本文主要是介绍面对不同种类的处理结果——result type=，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
Struts2中有很多不同种类的处理结果，有action也有视图文件。比较常见的情景就是我们要一个action链接到另一个action应该怎么做呢？我在这里就做了一个小例子
JSP文件内容
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html><head><meta charset="utf-8"><title></title></head><body><!-- chain链式结果类型，从一个action跳到另一个action --><s:form action="start"><s:submit value="chain链式"/></s:form><!-- 源代码类型 --><s:form action="plainText"><s:submit value="plainText源代码"/></s:form><!-- 请求转发 --><s:form action="dispatcher"><s:submit value="dispatcher转发到JSP视图文件"/></s:form><!-- 请求重定向 --><!-- 注意：重定向和请求转发可是有区别的哦，比较明显的是URL变化 --><s:form action="redirect"><s:submit value="redirect重定向到JSP视图文件"/></s:form><!-- 请求重定向到一个action --><s:form action="redirectAction"><s:submit value="redirectAction重定向到一个Action中"/></s:form><!-- 请求重定向，可以自定义的？？？这里只能是英文的，我就算在xml中设置的charSet也没有用，有知道的前辈求解一下这个问题，十分感谢--><s:form action="redirect-custom"><s:textfield name="myUrl"/><s:submit/></s:form><!-- 测试全局结果，如果一个action找不到匹配 --><s:form action="login!global"><s:submit value="TestGlobal"/></s:form></body>
</html>
struts.xml文件内容
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN""http://struts.apache.org/dtds/struts-2.3.dtd"><struts><constant name="struts.enable.DynamicMethodInvocation" value="true" /><constant name="struts.devMode" value="true" /><constant name="struts.custom.i18n.resources" value="test"/><package name="default" namespace="/" extends="struts-default"><global-results><result name="TestGlobal">/content/TestGlobal.jsp</result></global-results><action name="login" class="action.LoginAction"><result name="success">/content/success.jsp</result></action><action name="start" class="action.ActionOne"><result type="chain">end</result></action><action name="end" class="action.ActionTwo"><result>/content/success.jsp</result></action><action name="plainText"><result type="plainText"><param name="location">/content/success.jsp</param><param name="charSet">UTF-8</param></result></action><action name="dispatcher"><result type="dispatcher">/content/success.jsp</result></action><action name="redirect"><result type="redirect">/content/success.jsp</result></action><action name="redirectAction"><result type="redirectAction"><param name="actionName">TestRedirectAction</param><param name="namespace">/</param></result></action><action name="redirect-custom" class="action.RedirectCustom"><result type="redirect"><param name="location">testRedirect.action?myUrl=${myUrl}</param></result></action><action name="testRedirect" class="action.TestRedirect"><result>/content/success.jsp</result></action><action name="TestRedirectAction"><result>/content/success.jsp</result></action></package></struts>
ActionOne.java
package action;import com.opensymphony.xwork2.ActionSupport;public class ActionOne extends ActionSupport {@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubSystem.out.println("This is ActionOne");return super.execute();}
}
ActionTwo.java
package action;import com.opensymphony.xwork2.ActionSupport;public class ActionTwo extends ActionSupport {@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubSystem.out.println("This is ActionTwo");return super.execute();}
}
package action;import com.opensymphony.xwork2.ActionSupport;public class LoginAction extends ActionSupport {@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubSystem.out.println("This is execute");return super.execute();}public String method1() throws Exception {System.out.println("This is one");return SUCCESS;}public String method2() throws Exception {System.out.println("This is two");return SUCCESS;}public String global() throws Exception {System.out.println("This is glboal()");return "TestGlobal";}
}
package action;import com.opensymphony.xwork2.ActionSupport;public class RedirectCustom extends ActionSupport {private String myUrl;public String getMyUrl() {return myUrl;}public void setMyUrl(String myUrl) {this.myUrl = myUrl;}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubSystem.out.println("这里是RedirectCustom的execute()，接收到的myUrl为" + getMyUrl());return super.execute();}
}
TestRedirect.java
package action;import com.opensymphony.xwork2.ActionSupport;public class TestRedirect extends ActionSupport {private String myUrl;public String getMyUrl() {return myUrl;}public void setMyUrl(String myUrl) {this.myUrl = myUrl;}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubSystem.out.println("这里是TestRedirect的execute()，接收到的myUrl值为：" + getMyUrl());return super.execute();}
}
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