HttpClient发送请求和接收参数

package com.linxin.jia.HttpClient;import com.alibaba.fastjson.JSONObject;import org.apache.http.HttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.StringEntity;import org.apache.http.util.EntityUtils;/* ???<!-- HttpClient依赖 --> ???<dependency> ???<groupId>org.apache.httpcomponents</groupId> ???<artifactId>httpclient</artifactId> ???<version>4.5</version> ???</dependency> ???<dependency> ???<groupId>org.apache.httpcomponents</groupId> ???<artifactId>httpcore</artifactId> ???<version>4.4.5</version> ???</dependency> ???<dependency> ???<groupId>commons-logging</groupId> ???<artifactId>commons-logging</artifactId> ???<version>1.2</version> ???</dependency>*/public class Main{ ???public static void main(String[] args) ???{ ???????TestPost(); ???????//TestGet(); ???} ???private static void TestGet() ???{ ???????try ???????{ ???????????SSLClient client = new SSLClient(); ???????????// get方式的传统传值 ???????????//HttpGet get = new HttpGet("http://localhost:8080/demo/http?st=jiaxin"); ???????????// restful 风格 url ???????????HttpGet get = new HttpGet("http://localhost:8080/demo/http1/jiaxin"); ???????????get.setHeader("Accept","application/json;charset=utf-8"); ???????????// 此处响应结果值为向上转型得到的值，如果需要获得更多的响应值，可以使用CloseableHttpResponse。 ???????????HttpResponse response = client.execute(get); ???????????//CloseableHttpResponse response = client.execute(get); ???????????System.out.println("响应码："+response.getStatusLine()); ???????????System.out.println("响应body体："+ EntityUtils.toString(response.getEntity())); ???????} ???????catch (Exception e) ???????{ ???????} ???} ???private static void TestPost() ???{ ???????try ???????{ ???????????SSLClient client = new SSLClient(); ???????????HttpPost post = new HttpPost("http://localhost:8080/demo/http2"); ???????????post.setHeader("Accept","application/json;charset=utf-8"); ???????????JSONObject params = new JSONObject(); ???????????params.put("name","zhangsan"); ???????????params.put("age","20"); ???????????params.put("address","陕西理工大学"); ???????????// 传值时传递的是json字符串，这样的好处是在服务端无需建立参数模型，直接接收String，便于后期维护。 ???????????StringEntity stringEntity = new StringEntity(params.toJSONString(),"utf-8"); ???????????post.setEntity(stringEntity); ???????????HttpResponse response = client.execute(post); ???????????System.out.println("响应码："+response.getStatusLine()); ???????????System.out.println("响应body体："+EntityUtils.toString(response.getEntity())); ???????} ???????catch (Exception e) ???????{ ???????} ???}}

1、针对Spring Boot 时，服务端如何获取通过HttpClient传递的参数值 ???@RequestMapping(value = {"/http0"}) ???// get方式接收值，？传值 ???public Map show0(@RequestParam(required = false) String st) ???{ ???????System.out.println("st is :"+st); ???????JSONObject json = new JSONObject(); ???????json.put("name","zhangsan"); ???????json.put("age","20"); ???????return json; ???} ???@RequestMapping(value = {"/http1/{name}"}) ???// get方式接收值，rest 风格 ???public Map show1(@PathVariable("name") String st) ???{ ???????System.out.println("st is :"+st); ???????JSONObject json = new JSONObject(); ???????json.put("name","zhangsan"); ???????json.put("age","20"); ???????return json; ???} ???@RequestMapping(value = {"/http2"},method = RequestMethod.POST) ???// 接收body体Json字符串 ???public String show2(@RequestBody String st) ???{ ???????System.out.println("st is :"+st); ???????return st; ???}2、 针对Servlet的形式，如何接收传递的参数 ???@Override ???public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException ???{ ???????PrintWriter out= resp.getWriter(); ???????String paramName = req.getParameter("name"); ???????String paramAge = req.getParameter("age"); ???????out.print("paramName = " + paramName +" , paramAge = "+paramAge); ???????if (null != out) ???????{ ???????????out.close(); ???????} ???} ???@Override ???protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException ???{ ???????PrintWriter out= resp.getWriter(); ???????// 通过流的形式，将请求Body体的数据读取出来。 ???????InputStream in = req.getInputStream(); ???????byte[] b = new byte[1024]; ???????StringBuilder sb = new StringBuilder(); ???????int len = -1; ???????while( -1 != (len =in.read(b))) ???????{ ???????????byte[] temp = null; ???????????temp = Arrays.copyOf(b, len); // 针对最后一次数据读入，防止从流中读入的数据中包含空格。 ???????????sb.append(new String(temp)); ???????} ???????out.print(sb.toString()); ???????if (null != out) ???????{ ???????????out.close(); ???????} ???????if (null != in) ???????{ ???????????in.close(); ???????} ???}