Action中动态方法的调用 Action中通配符的使用 Result的配置

                                                                  Action中动态方法的调用

动态方法调用（Dynamic Method Invocation，DMI）

标识符：！

一、通过以下选中的文件来查看是否禁止调用动态方法

二、在我们自定义的action类中，我们不再单一的继承来自父类的方法，我们可以自定义自己的方法

 1 package cn.jbit.booklist;
 2 
 3 import com.opensymphony.xwork2.ActionSupport;
 4 
 5 public class BookList extends ActionSupport {
 6     @Override
 7     public String execute() throws Exception {
 8         System.out.println("booklist==========execute");
 9         return SUCCESS;
10     }
11 
12     public String edit() throws Exception {
13         System.out.println("booklist==========edit");
14         return "edit";
15     }
16 
17     public String list() throws Exception {
18         System.out.println("booklist==========list");
19         return "list";
20     }
21 
22 }

三、配置我们抽离出来的booklist.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 <struts>
 6 
 7   <package name="booklist" namespace="/" extends="main">
 8   
 9      <action name="booklist" class="cn.jbit.booklist.BookList">
10         <result name="success">/WEB-INF/myinter/list.jsp</result>
11         <result name="login">/WEB-INF/myinter/login.jsp</result>
12         
13      </action>
14      
15       <action name="booklist" class="cn.jbit.booklist.BookList">
16         <result name="edit">/WEB-INF/myinter/edit.jsp</result>
17      </action>
18      
19     
20      <action name="booklist" class="cn.jbit.booklist.BookList">
21         <result name="list">/WEB-INF/myinter/list.jsp</result>
22      </action>
23     
24   </package>
25 </struts>

四、将抽离出来的booklist.xml被struts.xml引用

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 <struts>
 6 <!--开发模式，以后对Struts。xml做的任何修正，都不需要重新启动服务器  -->
 7 <constant name="struts.devMode" value="true"></constant>
 8 <!-- <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> -->
 9 <package name="main" namespace="" extends="struts-default">
10 
11     <interceptors>
12         <interceptor name="myinter" class="cn.jbit.intercepter.MyTimerIntercepter"/>
13         
14         <interceptor-stack name="myStack">
15         <interceptor-ref name="myinter"></interceptor-ref>
16         <interceptor-ref name="defaultStack"></interceptor-ref>
17         </interceptor-stack>
18      </interceptors>
19      <default-interceptor-ref name="myStack"/>
20      
21   <default-action-ref name="index2"></default-action-ref>
22   <action name="index2">
23   <result>/WEB-INF/myinter/login.jsp</result>
24   </action>
25 
26 </package>
27 
28 <include file="cn/jbit/strusdemo/login.xml"></include>
29 <include file="cn/jbit/booklist/booklist.xml"></include>
30 </struts>

 

 

 

 

 

 

Action中通配符的使用

 1 package cn.jbit.action;
 2 
 3 import com.opensymphony.xwork2.ActionSupport;
 4 
 5 public class BookAction extends ActionSupport{
 6     
 7     /**
 8      * 添加
 9      * */
10      public String add() throws Exception{
11          System.out.println("add");
12          return "add";
13      }
14     
15      /**
16       * 修改
17       * */
18      public String update() throws Exception{
19          System.out.println("update");
20          return "update";
21      }
22      
23      /**
24       * 查询
25       * */
26      public String list() throws Exception{
27          System.out.println("list");
28          return "list";
29      }
30     
31 }

 

 1 package cn.jbit.action;
 2 
 3 import com.opensymphony.xwork2.ActionSupport;
 4 
 5 public class UserAction extends ActionSupport{
 6 
 7     /**
 8      * 添加
 9      * */
10      public String add() throws Exception{
11          System.out.println("add");
12          return "add";
13      }
14     
15      /**
16       * 修改
17       * */
18      public String update() throws Exception{
19          System.out.println("update");
20          return "update";
21      }
22      
23      /**
24       * 查询
25       * */
26      public String list() throws Exception{
27          System.out.println("list");
28          return "list";
29      }
30     
31 }

 

在地址栏输入

 

Result的配置

默认情况下是转发

下面我们来一道测试

 

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 <struts>
 6 <!--开发模式，以后对Struts。xml做的任何修正，都不需要重新启动服务器  -->
 7 <constant name="struts.devMode" value="true"></constant>
 8 <!-- <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant> -->
 9 <package name="default" namespace="/" extends="struts-default">
10     
11      <action name="userAction" class="cn.jbit.action.UserAction" method="list">
12         <result name="list">/User/list.jsp</result>
13         <result name="success">/User/update.jsp</result>
14      </action>
15     
16     <action name="bookAction" class="cn.jbit.action.BookAction">
17        <result name="add">/Book/add.jsp</result>
18     </action>
19 
20 </package>
21 
22 </struts>

 

 

 1 package cn.jbit.action;
 2 
 3 import javax.servlet.http.HttpServletRequest;
 4 
 5 import org.apache.struts2.ServletActionContext;
 6 
 7 import com.opensymphony.xwork2.ActionSupport;
 8 
 9 public class UserAction extends ActionSupport{
10 
11     /**
12      * 添加
13      * */
14      public String add() throws Exception{
15          System.out.println("add");
16          return "add";
17      }
18     
19      /**
20       * 修改
21       * */
22      public String update() throws Exception{
23          System.out.println("update");
24          return "update";
25      }
26      
27      /**
28       * 查询
29       * */
30      public String list() throws Exception{
31          System.out.println("list");
32          HttpServletRequest request = ServletActionContext.getRequest();
33          request.setAttribute("uname", "我是转发，我可以携带数据");
34          
35          return "list";
36      }
37     
38 }

 

在地址栏中输入请求地址

重定向到视图页面我们就不做展示，下面我们直接介绍重定向到一个action地址

在地址栏请求

 

再来说转发到一个action

 

posted @ 2016-09-05 18:29  回青  阅读(629)  评论(0)  编辑  收藏  举报