详解Struts2动态方法调用

<action name="addAction" method="add" class="com.venn.action.HelloWorldAction">
<result>/jsp/add.jsp</result>
</action>

<action name="HelloWorld" class="com.venn.action.HelloWorldAction">
   <result>/jsp/test.jsp</result>
　　<result name="add">/jsp/add.jsp</result>
　　<result name="update">/jsp/update.jsp</result>
</action>

<action name="HelloWorld_*" method="{1}" class="com.venn.action.HelloWorldAction">
<result>/jsp/test.jsp</result>
<result name="add">/jsp/add.jsp</result>
<result name="update">/jsp/update.jsp</result>
</action>

<action name="*_*_*" method="{2}" class="com.venn.{3}.{1}Action">
<result>/jsp/test.jsp</result>
<result name="add">/jsp/{2}.jsp</result>
<result name="update">/jsp/{2}.jsp</result>
</action>

public class HelloWorldAction extends ActionSupport {
@Override
public String execute() throws Exception {
System.out.println("execute method");
return "success";
}
public String add(){
System.err.println("add method");
return "add";
}
public String update(){
System.out.println("update method");
return "update";
}
}