Struts2 注解模式的几个知识点

Struts2 注解模式的几个知识点

struts的东西也只是以前会简单的使用。于是就动手写一写。遇到了一些问题。，还是不熟悉，只是会用，知道怎么配置怎么写action。现将遇到的问题记录如下。

1.redirect ， redirectAction的配置，有的时候，在使用这些result type的时候会需要跳转到不同的namespace中。那么在配置中该怎么写呢？

package com.struts2.action;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.stereotype.Controller;

@ParentPackage(value="struts-default")
@Namespace(value = "/admin")
@Controller
public class IndexAction{
 private int i;

 public int getI() {
  return i;
 }

 public void setI(int i) {
  this.i = i;
 }

 @Action(value = "/login", results = {
   @Result(name="sucess", location = "/index.jsp"),
   @Result(name="chain", location = "chain",type="chain"),//同namespace下 chain
   @Result(name="otherNsChain", type="chain",params= {
     "namespace","/user","actionName","chain"
   }),//不同namespace下
   @Result(name="redirect",type="redirect",location="redirect.action"),//同namespace
   @Result(name="otherNsRedirect",type="redirect",location="/user/redirect.action"),//不同namespace
   @Result(name="redirectAction",type="redirectAction",params= {
     "actionName","redirectAction"
   }),//同namespace
   @Result(name="otherNsRedirectAction",type="redirectAction",params= {
     "namespace","/user","actionName","redirectAction"
   })//不同namespace
 })
 public String login() {
  String loc = "sucess";
 
  int j = getI();
  switch (j) {
  case 1:
   loc="chain";
   break;
  case 2:
   loc="redirect";
   break;
  case 3:
   loc="redirectAction";
   break;
  case 4:
   loc = "otherNsChain";
   break;
  case 5:
   loc = "otherNsRedirect";
   break;
  case 6:
   loc = "otherNsRedirectAction";
  }
  System.out.println(loc);
  return loc;
 }
 
 @Action(value="chain",results= {
   @Result(name="chain",location="/chain.jsp")
 })
 public String chain() {
  String loc = "chain";
  System.out.println("IndexAction.chain()");
  System.out.println("chain");
 
  return loc;
 }
 
 
 @Action(value="redirect",results= {
   @Result(name="redirect",location="/redirect.jsp")
 })
 public String redirect() {
  String loc = "redirect";
  System.out.println("同namespace下的 redirect");
  System.out.println("IndexAction.redirect()");
  return loc;
 }
 

 @Action(value="redirectAction",results= {
   @Result(name="redirectAction",location="/redirectAction.jsp")
 })
 public String redirectAction() {
  String loc = "redirectAction";
  System.out.println("IndexAction.redirectAction()");
  System.out.println("同namespace下 的 redirectAction");
  return loc;
 
 
 }

}

---------------------------------------------------------------

package com.struts2.action;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.stereotype.Controller;

@ParentPackage(value="struts-default")
@Namespace(value="/user")
@Controller
public class UserAction {

 @Action(value="redirectAction",results= {
   @Result(name="redirectAction",location="/otherNsRedirectAction.jsp")
 })
 public String redirectAction() {
  String loc = "redirectAction";
  System.out.println("UserAction.redirectAction()");
  System.out.println("不同namespace下的redirectAction");
  return loc;
 
 
 }
 
 @Action(value="/chain",results= {
   @Result(name="chain",location="/OtherNschain.jsp")
 })
 public String chain() {
  String loc = "chain";
  System.out.println("UserAction.chain()");
  System.out.println("不同namespace下的chain");
  return loc;
 }
 
 
 @Action(value="/redirect",results= {
   @Result(name="redirect",location="/otherNsRedirect.jsp")
 })
 public String redirect() {
  String loc = "redirect";
  System.out.println("不同namespace下的 redirect");
  System.out.println("UserAction.redirect()");
  return loc;
 }
 
 
 
 
}