Request-获取请求行数据-方法介绍
3. request功能:
1. 获取请求消息数
1. 获取请求行数据
GET /day14/demo1?name=zhangsan HTTP/1.1
方法:
1. 获取请求方式 :GET
String getMethod()
2. (*)获取虚拟目录:/day14
String getContextPath()
3. 获取Servlet路径: /demo1
String getServletPath()
4. 获取get方式请求参数:name=zhangsan
String getQueryString(
5. (*)获取请求URI:/day14/demo1
String getRequestURI(): /day14/demo1
StringBuffer getRequestURL() :http://localhost/day14/demo1
URL:统一资源定位符 : http://localhost/day14/demo1 中华人民共和
URI:统一资源标识符 : /day14/demo1 共和国
6. 获取协议及版本:HTTP/1.1
String getProtocol()
7. 获取客户机的IP地址:
String getRemoteAddr()
Request-获取请求行数据-代码演示
package com.example.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; /** * 演示Request对象获取请求行数据 */ @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 getMethod() 2. (*)获取虚拟目录:/day14 * String getContextPath() 3. 获取Servlet路径: /requestDemo1 * String getServletPath() 4. 获取get方式请求参数:name=zhangsan * String getQueryString() 5. (*)获取请求URI:/day14/demo1 * String getRequestURI(): /day14/requestDemo1 * StringBuffer getRequestURL() :http://localhost/day14/requestDemo1 6. 获取协议及版本:HTTP/1.1 * String getProtocol() 7. 获取客户机的IP地址: * String getRemoteAddr() */ //1. 获取请求方式 :GET String method = request.getMethod(); System.out.println(method); //2.(*)获取虚拟目录:/day14 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方式请求参数:name=zhangsan String queryString = request.getQueryString(); System.out.println(queryString); //5.(*)获取请求URI:/day14/demo1 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); } }
标签:演示,String,request,代码,Request,day14,获取,demo1,请求 From: https://www.cnblogs.com/yuzong/p/16926224.html