Struts2.3.4.1 注解实例（二十）

1.FilterDispatcher: 需要的  struts2-codebehind-plugin-2.3.4.jar

StrutsPrepareAndExecuteFilter:需要
         struts2-convention-plugin-2.3.4.jar
         asm-3.3.jar
         asm-commons-3.3.jar

附件中有完整案例

2.struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
  
	<constant name="struts.convention.default.parent.package" value="default-package" />  
	<package name="default-package" extends="convention-default"></package> 
	 
	 
	<!-- 修改请求的后缀名为.do 修改后每个请求必须要有后缀了-->
	<constant name="struts.action.extension" value="do,action"/>
	<!-- 如果 注解的action配置改变时候不需要重新启动tomcate -->
	<constant name="struts.devMode" value="true"/>  
    <constant name="struts.convention.classes.reload" value="true" /> 
    <!-- 配置log4j 的 日志级别 -->
    <constant name="log4j.logger.org.apache.struts2.convention" value="DEBUG" />
</struts>

3.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<filter>
	<filter-name>struts2</filter-name>
	<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
<!--发现 比FilterDispatcher不需要配置actionPackages-->
</filter>	
<filter-mapping>
	<filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
	
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

4.action

package com.luob.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.apache.struts2.convention.annotation.ResultPath;

import com.opensymphony.xwork2.ActionSupport;

@Namespace(value="/user")
@ResultPath("/WEB-INF/jsps")
@Result(name="success",location="success.jsp")
public class Annotation extends ActionSupport{

	@Action(value="/exec")
	public String execute() throws Exception {
		// TODO Auto-generated method stub
		return SUCCESS;
	}
	@Action(value="/input")
	public String init(){
		return SUCCESS;
	}

}

5.访问地址
访问input：
     http://localhost:8080/Struts2_An/user/input.action
     http://localhost:8080/Struts2_An/user/input
     http://localhost:8080/Struts2_An/user/input.do
execute 方法就不说了
    和上面的一样

6.如果修改action 的代码如下：

package com.luob.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.apache.struts2.convention.annotation.ResultPath;

import com.opensymphony.xwork2.ActionSupport;

@Namespace(value="/user")
@Result(name="success",location="/success.jsp")
@Action(value="Annotation")
public class Annotation extends ActionSupport{

	public String execute() throws Exception {
		// TODO Auto-generated method stub
		return SUCCESS;
	}
	public String init(){
		return SUCCESS;
	}
}

7.访问地址
访问execute：
     http://localhost:8080/Struts2_An/user/Annotation.do
    http://localhost:8080/Struts2_An/user/Annotation.action

访问 init：
    http://localhost:8080/Struts2_An/user/Annotation!init.do
   http://localhost:8080/Struts2_An/user/Annotation!init.action

8.当然 还可以 测试下 替换成@Result(name="success",location="success.jsp") 没有了/ 就会跑到 WEB-INF/conent/user/success.jsp

9.总之 够你研究的