<%@ page language="java" import="java.util.*" contentType="text/html; charset=utf-8"%><% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>
第一个Servlet小例子
Get方式请求HelloServlet

 package servlet; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; //继承于HttpServlet public class HelloServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub System.out.println("处理get（）请求..."); PrintWriter out = response.getWriter(); response.setContentType("text/html; charset=utf-8"); out.println("Hello Servlet!
"); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { System.out.println("处理post（）请求..."); PrintWriter out = response.getWriter(); response.setContentType("text/html; charset=utf-8"); out.println("Hello Servlet!
"); } } 

index.jspHelloServletservlet.HelloServletHelloServlet/servlet/HelloServlet