在struts2-core.jar/struts-default.xml中，我们可以找到关于result-type的一些配置信息，从中可以看出struts2组件默认为我们提供了这
些result-type
<result-types>
<result-type name="chain" class="com.opensymphony.xwork2.ActionChainResult"/>
<result-type name="dispatcher" class="org.apache.struts2.dispatcher.ServletDispatcherResult" default="true"/>
<result-type name="freemarker" class="org.apache.struts2.views.freemarker.FreemarkerResult"/>
<result-type name="httpheader" class="org.apache.struts2.dispatcher.HttpHeaderResult"/>
<result-type name="redirect" class="org.apache.struts2.dispatcher.ServletRedirectResult"/>
<result-type name="redirectAction" class="org.apache.struts2.dispatcher.ServletActionRedirectResult"/>
<result-type name="stream" class="org.apache.struts2.dispatcher.StreamResult"/>
<result-type name="velocity" class="org.apache.struts2.dispatcher.VelocityResult"/>
<result-type name="xslt" class="org.apache.struts2.views.xslt.XSLTResult"/>
<result-type name="plainText" class="org.apache.struts2.dispatcher.PlainTextResult" />
<!-- Deprecated name form scheduled for removal in Struts 2.1.0. The camelCase versions are preferred. See ww-1707 -->
<result-type name="redirect-action" class="org.apache.struts2.dispatcher.ServletActionRedirectResult"/>
<result-type name="plaintext" class="org.apache.struts2.dispatcher.PlainTextResult" />
</result-types>
其中
dispatcher 返回jsp
struts.xml
<action name="*_*" class="cn.happy.action.{1}" method="{2}"> <result name="{2}"> /{1}/{2}.jsp </result> </action>
默认的模式 无需特殊指定result节点中的type属性
chain 实现从一个Action方法A跳转到另一个方法B
struts.xml
<!-- chain 转发到另一个Action--> <action name="userAction" class="sword.action.UserAction" method="list"> <result name="list" type="chain"> <param name="actionName">userActionDel</param> <param name="namespace">/</param> </result> </action> <action name="userActionDel" class="sword.action.UserAction" method="del"> <result name="del"> /del.jsp </result> </action>
Action
public class LogAction extends ActionSupport { private String uname; private String pwd; public String log() throws Exception { return "log"; }
jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> 这是del </body> </html>
最后地址栏的地址没有变化 请求到了list方法后 转发到了del方法 最后回到了jsp页面