使用PreResultListener

 

 

它是一个监听器接口,它可以在Action完成控制处理之后,系统转入实际的物理视图之间被回调

 

public class LoginRegistAction 
	extends ActionSupport
{
	...
	public String execute() throws Exception
	{
		ActionInvocation invocation = ActionContext
			.getContext().getActionInvocation();
		invocation.addPreResultListener(new PreResultListener() 
		{
			public void beforeResult(ActionInvocation invocation, 
				String resultCode) 
			{
				System.out.println("返回的逻辑视图名字为："
					+ resultCode);
				//在返回Result之前加入一个额外的数据。
				invocation.getInvocationContext().put("extra"
					, new java.util.Date() + "由" 
					+ resultCode + "逻辑视图名转入");
				//也可加入日志等
			}
		});
	}
	...
}