实现方式
1、在struts.xml或xwork.xml加如下配置信息
2、在BaseAction类中加入proxy的方法实现
private ActionProxy proxy;
public ActionProxy getProxy(){
if(proxy == null)
proxy = ActionContext.getContext().getActionInvocation().getProxy();
return proxy;
}
3、做一个JSP文件，文件名一定要与action的方法名相同，列如：a.jap那么action的方法的写法
public String a() throws Exception{
return AUTO;
}
4、在某个Jsp页面中调于这个无配置actoin的写法
actionName!a.action
分析
ActionProxy类是struts2或webwork提供的一个action代理类，它的作用是它的作用是记录当前这个action的对象、action的名称、配置信息及该action所属的包名等信息。该接口的声明如下
public interface ActionProxy {
/**
* @return the Action instance for this Proxy
*/
Object getAction();
/**
* @return the alias name this ActionProxy is mapped to
*/
String getActionName();
/**
* @return the ActionConfig this ActionProxy is built from
*/
ActionConfig getConfig();
/**
* Sets whether this ActionProxy should also execute the Result after executing the Action
*
* @param executeResult
*/
void setExecuteResult(boolean executeResult);
/**
* @return the status of whether the ActionProxy is set to execute the Result after the Action is executed
*/
boolean getExecuteResult();
/**
* @return the ActionInvocation associated with this ActionProxy
*/
ActionInvocation getInvocation();
/**
* @return the namespace the ActionConfig for this ActionProxy is mapped to
*/
String getNamespace();
/**
* Execute this ActionProxy. This will set the ActionContext from the ActionInvocation into the ActionContext
* ThreadLocal before invoking the ActionInvocation, then set the old ActionContext back into the ThreadLocal.
*
* @return the result code returned from executing the ActionInvocation
* @throws Exception
* @see ActionInvocation
*/
String execute() throws Exception;
/**
* Sets the method to execute for the action invocation. If no method is specified, the method provided by
* in the actions configuration will be used.
*
* @param method the string name of the method to invoke
*/
void setMethod(String method);
/**
* Returns the method to execute, or null if no method has been specified (meaning "execute" will be invoked)
*/
String getMethod();
}
J-Hi借用了这个代理类，在action的基类也就是BaseAction中添加了对该类实例的引用，从而实体全局配置
其中${proxy.config.packageName}用来指定当前action所属的包名，例如,"testjs"就是配置文件的包名
.
name="auto" 是我们特意为这样无配置的actoin起了一个特定的名字，也就是说
public String a() throws Exception{
return "auto";
或
return AUTO;
} 效果是一样的
我们特意将这段result的配置放在了