第一个java Servlet

(左边空白区)项目资源管理器->新建->Dynamic Web Project

java Resources下创建一个Servlet java类

package com.ulikeme.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;

public class firstServlet extends HttpServlet {

	/**
	 * Servlet java类必须重写此方法
	 */
	@Override
	protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		
		//接收请求发来的参数
		String name=request.getParameter("name");
		String html="
"+name+"
";
		System.out.println("返回给浏览器的响应数据为"+html);
		PrintWriter out= response.getWriter();
		out.println(html); //将html发送回去浏览器
	}
	
	


}

 

Servlet java类写好之后要在web.xml中配置

运行：