自定义拦截器（二）

package cn.itcast.crm.interceptor;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;
public class  extends MethodFilterInterceptor {
	
	protected String doIntercept(ActionInvocation invocation) throws Exception {
		Object user = ServletActionContext.getRequest().getSession().getAttribute("user");
		
		if(user!=null){
			invocation.invoke();  //直接放过
		}
		
		return "login";
		
	}
}