tomcat使用的request的源码

package cn.itcast.servlet.request;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class RequestDemo1
 */
@WebServlet("/RequestDemo1")
public class RequestDemo1 extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public RequestDemo1() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //1.获取请求方式:GET
//        String method = request.getMethod();
//        System.out.println(method);
        //2.获取虚拟目录
//        String contextPath = request.getContextPath();
//        System.out.println(contextPath);
        //3.获取Servlet路径:/demo1
        String servletPath = request.getServletPath();
        System.out.println(servletPath);
//        //4.获取get方式请求的参数
//        String queryString = request.getQueryString();
//        System.out.println(queryString);
//        //5.获取请求URI
//        String requestURI = request.getRequestURI();
//        StringBuffer requestURL = request.getRequestURL();
//        System.out.println(requestURI);
//        System.out.println(requestURL);
//        //6.获取协议和版本
//        String protocol = request.getProtocol();
//        System.out.println(protocol);
//        //7.获取客户机的IP地址
//        String remoteAddr = request.getRemoteAddr();
//        System.out.println(remoteAddr);
    }

    /**
     * @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);
    }

}