xwork学习（一）

基本上是从网上修改的一个demo
流程是 请求-》拦截-》结果的一个响应。
xml配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 2.0//EN" "http://www.opensymphony.com/xwork/xwork-2.0.dtd">
<xwork>
	<include file="xwork-default.xml" />
	<package name="myPackage"  namespace="/helloWorld">
		<result-types>
			<result-type name="myConsole" class="com.stx.result.ResultTest"/>
		</result-types>		
	    <interceptors>
  	      <interceptor name="helloInterceptor" class="com.stx.interceptor.InterceptorTest"/>
 	    </interceptors>
		<action name="actionTest" class="com.stx.action.ActionTest">
			<interceptor-ref name="helloInterceptor"/>
			<result type="myConsole"></result>
		</action>
	</package>
</xwork>

action 配置

package com.stx.action;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionContext;
public class ActionTest implements Action{	
	
	@Override
	public String execute() throws Exception {
		System.out.println("action="+ActionContext.getContext().get("name"));
		return SUCCESS;
	}
	
}

interceptor拦截器

package com.stx.interceptor;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
public class InterceptorTest extends AbstractInterceptor{
	@Override
	public String intercept(ActionInvocation invocation) throws Exception {
				System.out.println("intercept:"+ActionContext.getContext().get("name")); 	
                       //返回值invocation.invoke();
//中止整个执行，直接返回一个字符串作为resultCode 
//通过递归调用负责调用堆栈中下一个Interceptor的执行invocation.invoke();
//这个参数其实是负责调度到action的类本身参数传进来 形成一个递归
//如果在堆栈内已经不存在任何的Interceptor，调用Action 
     			      return null;
	}

}

result类

package com.stx.result;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.Result;
public class ResultTest implements Result {
	@Override
	public void execute(ActionInvocation arg0) throws Exception {
		 System.out.println("result execute:"+ ActionContext.getContext().get("name"));  		
	}
}

test测试

package com.stx.test;
import java.util.HashMap;
import java.util.Map;
import com.opensymphony.xwork2.ActionProxy;
import com.opensymphony.xwork2.ActionProxyFactory;
import com.opensymphony.xwork2.config.Configuration;
import com.opensymphony.xwork2.config.ConfigurationManager;
import com.opensymphony.xwork2.inject.Container;
public class TestXwork {
	public static void main(String[] args) {
		ConfigurationManager cm=new ConfigurationManager ()			Configuration cg=cm.getConfiguration();    
		Container c = cg.getContainer();  		
	   ActionProxyFactory actionProxyFactory = c.getInstance(ActionProxyFactory.class);  
	       Map<String,Object> m = new HashMap<String,Object>(); 	       	        m.put("name","bobo");  
		        ActionProxy actionProxy = actionProxyFactory.createActionProxy(  
		            "/helloWorld", "actionTest",null, m); 
		        for(int i=-2;i<actionProxy.getInvocation().getStack().size();i++){
		        	System.out.println(actionProxy.getInvocation().getStack().pop());
		        }		        
	        try {  
		           actionProxy.execute();  
		        } catch (Exception e) {  
		           // TODO Auto-generated catch block   
		            e.printStackTrace();  
		        }  
		   }  	
}

整个运行流程出来了。。。
中间的一些细节不明白,看源码的时候 接口看的眼花缭乱！
这是第一次源码感觉很吃力。