前提是在Eclipse中配置好tomcat，Eclipse中配置tomcat请参考Eclipse中tomcat的配置
1)创建dynamic web project，只需要命名为web01_exec，其余默认设置即可；
2)next-next-勾选generate web.xml deployment description，该选项会在目录下生成一个默认的xml文件；
3)在java resource的src下建立命名为web的package，创建名为DateServlet的类；
4)DateServlet类继承自HttpServlet，重载HttpServlet的service方法；
1 package web; 2 import javax.servlet.ServletException; 3 import javax.servlet.http.HttpServlet; 4 import javax.servlet.http.HttpServletRequest; 5 import javax.servlet.http.HttpServletResponse; 6 7 import java.util.Date; 8 import java.io.IOException; 9 import java.io.PrintWriter; 10 public class DateServlet extends HttpServlet { 11 public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException { 12 Date date=new Date(); 13 response.setContentType("text/html"); 14 PrintWriter out=response.getWriter(); 15 out.println("now:"+date); 16 out.close(); 17 } 18 }