礼悟：
好好学习多思考，尊师重道存感恩。叶见寻根三二一，江河湖海同一体。
虚怀若谷良心主，愿行无悔给最苦。读书锻炼强身心，诚劝且行且珍惜。
javaEE：7
javaSE：1.8
JSTL：1.2.2
server：tomcat 8.5
explorer：Chrome
os：windows7 x64
ide：MyEclipse 2017
工程目录结构
web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"><servlet><servlet-name>MyServlet</servlet-name><servlet-class>jizuiku.web.servlet.MyServlet</servlet-class></servlet><servlet-mapping><servlet-name>MyServlet</servlet-name><url-pattern>/MyServlet</url-pattern></servlet-mapping></web-app>
Servlet类代码
package jizuiku.web.servlet;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/** * HttpServletRequest getXXXX * ?* @author 给最苦 * @version V17.10.25 */public class MyServlet extends HttpServlet {/** * ?*/private static final long serialVersionUID = 1L;@Overrideprotected void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String queryString = request.getQueryString();String requestURI = request.getRequestURI();// request.getRequestURL()返回的是StringBufferString requestURL = request.getRequestURL().toString();// 全路径 什么都有的那种String fullPath = requestURL + "?" + queryString;System.out.println("参数部分:" + queryString);System.out.println("请求uri:" + requestURI);System.out.println("请求url:" + requestURL);System.out.println("全路径:" + fullPath);}@Overrideprotected void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {// TODO Auto-generated method stub}}浏览器进行查看
控制台输出效果
学习资源：itcast和itheima视频库。如果您有公开的资源，可以分享给我的话，用您的资源学习也可以。
博文是观看视频后，融入思考写成的。博文好，是老师讲得好。博文坏，是 给最苦 没认真。
HttpServletRequest getXXX 获取参数、请求uri url、全路径
原文地址：http://www.cnblogs.com/jizuiku/p/7744115.html