想要包含一个servlet得用下列的方法，it is alleged that include file="servlet1" can not work。（视频下载） （全部书籍）
例 4.4.2
<html>
<body>
<jsp:include page="/Cookie/DeleteCookie" flush="true" />
</body>
</html>
package com;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class DeleteCookie extends HttpServlet {
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {