Servlet3.0 注解与配置文件

servlet3.0后支持注解，非常方便，不需太多配置文件

eg:

@WebServlet(name = "LoginAction", urlPatterns = "/LoginAction")public class LoginAction extends HttpServlet {    @Override    PRotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        //super.doGet(req, resp);        this.doPost(req, resp);    }请求地址就是你的urlPatterns参数
-------------------
如果不用注解就必须在web.xml中配置（多个servlet需要这样配置，哇，是不是非常麻烦呀）
<servlet><servlet-name>LoginAction</servlet-name><servlet-class>com.zeng.action.LoginAction</servlet-class></servlet><servlet-mapping><servlet-name>LoginAction</servlet-name><url-pattern>/LoginAction</url-pattern></servlet-mapping><servlet><servlet-name>CheckAction</servlet-name><servlet-class>com.zeng.action.CheckAction</servlet-class></servlet><servlet-mapping><servlet-name>CheckAction</servlet-name><url-pattern>/CheckAction</url-pattern></servlet-mapping>
更多相关博客请看：
相关博客：http://blog.csdn.net/tantexian/article/details/50414368
//--------end--------