Request line data acquisition request

Line data acquisition request

method:

• Acquisition request method: GET

package com.web.request;

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

/**
 * @ClassName: ${NAME}
 * @Description: TODO
 * @author: Doge_fang
 * @date: 2020/3/3  18:24
 */
@WebServlet("/requestDemo1")
public class RequestDemo1 extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

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：/test
    String contextPath = request.getContextPath();
    System.out.println(contextPath);
    //3. 获取Servlet路径: /requestdemo1
    String servletPath = request.getServletPath();
    System.out.println(servletPath);
    //4. 获取get方式请求参数：name=fang
    String queryString = request.getQueryString();
    System.out.println(queryString);
    //5.(*)获取请求URI、URL：/test/requestdemo1
    //URI:统一资源标识符（范围广）
    //URL:统一资源定位符
    String requestURI = request.getRequestURI();
    StringBuffer requestURL = request.getRequestURL();
    System.out.println(requestURI);
    System.out.println(requestURL);
    //6. 获取协议及版本：HTTP/1.1
    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);

}
}