大家用过@WebServlet("/Demo")这种方式写Servlet吗？

[lsxlhbsyl]

我怎么感觉不稳定，有时候启动Tomcat7.0合适着呢，有时候不合适。是不是我写的有问题呢？


我请求 http://localhost:8080/TempWeb/Demo

报404

HTTP Status 404 - /TempWeb/Demo

--------------------------------------------------------------------------------

type Status report

message /TempWeb/Demo

description The requested resource (/TempWeb/Demo) is not available.

package cn.liushaoxiong.www;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class Demo
 */
@WebServlet("/Demo")
public class Demo extends HttpServlet {
	private static final long serialVersionUID = 1L;
       

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		System.out.println("Hello");
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		System.out.println("Hello");		
	}

}

[rainsilence]

lz，你的类没问题。问题出在你的配置。一旦用了Servlet3.0，就不能写web.xml。

[rainsilence]

还有，TempWeb你部署了没有？

[rainsilence]

如果你写了web.xml，检查<web-app> 有一个 metadata-complete，是否为true，如果为true,改成false

[wuxiaoke2009]

涨见识了

[xjwlmm]

我也出现了这个问题

[yue_luu]

删除web.xml 或者 metadata-complete=true

[hong2k1]

我这遇到这个问题了，但是我是因为tomcat版本不对，tomcat7才会支持annotation