在Eclipse开发工具中创建Servlet通过开发工具创建servlet

通过开发工具创建servlet有两种方式

1. 先创建一个普通的java类，需要去实现Servlet接口,或者继承对应的HttpServlet(GenericSerlet)类，普通的java类就具有了servlet功能，所以需要手动在web.xml配置文件中添加访问servlet的路径信息。

2. 直接创建servlet,会自动在web.xml文件中添加访问servlet的路径信息。

步骤：

1. 新建web项目

   

2. 创建一个Servlet程序

     

    

   

   package com.ww.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;
   
   /**
    * Servlet implementation class textServlet
    */
   public class textServlet extends HttpServlet {
   	private static final long serialVersionUID = 1L;
   
   	/**
   	 * doGet方法，用来接收浏览器发送的get请求
   	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
   	 */
   	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
   		// TODO Auto-generated method stub
   		//response.getWriter().append("Served at: ").append(request.getContextPath());
   	     PrintWriter pw=response.getWriter();
   	     pw.print("servlet");
   	}
   
   	/**
   	 * doPost方法，用来接收浏览器发送的pose请求
   	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
   	 */
   	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
   		// TODO Auto-generated method stub
   		//doGet(request, response);
   		this.doGet(request, response);
   	}
   
   }
   

3. 部署和访问servlet

   访问地址：http://localhost:8080/servletWeb01/textServlet