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本章节将继续学习struts2的返回类型的使用方法。
学习文档下载struts2 full包解压后会在doc下包含离线html文档。
点击运行后页面：
点击Guides向导终将会有向导列表
再点开后，就可以看到struts2支持的所有resultType:
默认的resultType是dispatcher.
常用的dispatcher,redirect,redirectAction,chain.
1 package name="default" namespace="/" extends="struts-default"> 2 <action name="testServletObject" 3 class="com.dx.actions.TestActionContextFetchServletObjectAction"> 4 <result>/WEB-INF/test-context.jsp</result> 5 </action> 6 <!-- default class="com.opensymphony.xwork2.ActionSupport" method="execute" --> 7 <action name="gotoLoginPage"> 8 <!-- name default value:"success" --> 9 <result>/login.jsp</result> 10 </action> 11 12 <action name="logout" class="com.dx.actions.TestWithXXXAware" 13 method="logout"> 14 <result name="logout-success">/login.jsp</result> 15 </action> 16 17 <action name="login" class="com.dx.actions.TestWithXXXAware" method="login"> 18 <result name="login-success">/WEB-INF/login-success.jsp</result> 19 </action> 20 21 <action name="testResult" class="com.dx.actions.TestResultAction" method="test"> 22 <!-- redirect到一个Action --> 23 <result name="redirectAction-success" type="redirectAction"> 24 <param name="actionName">testRdirect</param> 25 <param name="namespace">/testNamespace</param> 26 </result> 27 <!-- redirect --> 28 <result name="redirect-success" type="redirect">/login.jsp</result> 29 <!-- dispatcher --> 30 <result name="dispatcher-success" type="dispatcher">/login.jsp</result> 31 </action> 32 33 <action name="createAccount" class="com.dx.actions.AccountAction" method="execute"> 34 <!-- chain --> 35 <result type="chain">login</result> 36 </action> 37 </package> 38 39 <package name="testRedirectPackage" namespace="/testNamespace" extends="struts-default"> 40 <action name="testRdirect" class="com.dx.actions.TestRedirectAction" method="test"> 41 <result name="test-success">/WEB-INF/test-success.jsp</result> 42 </action> 43 </package>
TestRedirectAction.java
1 package com.dx.actions; 2 3 import org.apache.struts2.ServletActionContext; 4 5 public class TestRedirectAction { 6 public String test() { 7 String resultType = ServletActionContext.getRequest().getParameter("resultType"); 8 System.out.println(resultType); 9 ServletActionContext.getRequest().setAttribute("resultType", resultType); 10 System.out.println("TestRedirectAction.test"); 11 return "test-success"; 12 } 13 }
TestResultAction.java
1 package com.dx.actions; 2 3 import org.apache.struts2.ServletActionContext; 4 5 import com.opensymphony.xwork2.ActionContext; 6 7 import sun.nio.cs.ext.TIS_620; 8 9 public class TestResultAction { 10 private String resultType; 11 12 public void setResultType(String resultType) { 13 this.resultType = resultType; 14 } 15 16 public String test() { 17 System.out.println(resultType); 18 19 if (resultType.equalsIgnoreCase("dispatcher")) { 20 System.out.println("result dispatcher-success"); 21 return "dispatcher-success"; 22 } else if (resultType.equalsIgnoreCase("redirect")) { 23 System.out.println("result redirect-success"); 24 return "redirect-success"; 25 } else if (resultType.equalsIgnoreCase("redirectAction")) { 26 System.out.println("result redirectAction-success"); 27 return "redirectAction-success"; 28 } else if (resultType.equalsIgnoreCase("chain")) { 29 System.out.println("result chain-success"); 30 return "chain-success"; 31 } else { 32 System.out.println("no match"); 33 } 34 35 ServletActionContext.getRequest().setAttribute("resultType", this.resultType); 36 37 return ""; 38 } 39 }
AccountAction.java
1 package com.dx.actions; 2 3 public class AccountAction { 4 public String execute(){ 5 System.out.println("acction action chain"); 6 return "success"; 7 } 8 }
index.jsp
<a href="testResult?resultType=redirectAction">redirectAction</a> <br /> <a href="testResult?resultType=redirect">redirect</a> <br /> <a href="testResult?resultType=dispatcher">dispatcher</a> <br /> <a href="createAccount">test chain</a>
result配置还有很多需要注意的地方，可以参考：
file:///D:/Java_Study/struts-2.3.28-all/struts-2.3.28/docs/docs/result-configuration.html
这里就简单说明，介绍，一遍自己可以学习使用。
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原文地址：http://www.cnblogs.com/yy3b2007com/p/5602256.html
