JAVA发送HttpClient请求及接收请求结果过程

1、写一个HttpRequestUtils工具类，包括post请求和get请求

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package com.brainlong.framework.util.httpclient;   import net.sf.json.JSONObject; import org.apache.commons.httpclient.HttpStatus; 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.impl.client.DefaultHttpClient; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory;   import java.io.IOException; import java.net.URLDecoder;   public class HttpRequestUtils {     private static Logger logger = LoggerFactory.getLogger(HttpRequestUtils.class);    //日志记录       /**      * httpPost      * @param url  路径      * @param jsonParam 参数      * @return      */     public static JSONObject httpPost(String url,JSONObject jsonParam){         return httpPost(url, jsonParam, false);     }       /**      * post请求      * @param url         url地址      * @param jsonParam     参数      * @param noNeedResponse    不需要返回结果      * @return      */     public static JSONObject httpPost(String url,JSONObject jsonParam, boolean noNeedResponse){         //post请求返回结果         DefaultHttpClient httpClient = new DefaultHttpClient();         JSONObject jsonResult = null;         HttpPost method = new HttpPost(url);         try {             if (null != jsonParam) {                 //解决中文乱码问题                 StringEntity entity = new StringEntity(jsonParam.toString(), "utf-8");                 entity.setContentEncoding("UTF-8");                 entity.setContentType("application/json");                 method.setEntity(entity);             }             HttpResponse result = httpClient.execute(method);             url = URLDecoder.decode(url, "UTF-8");             /**请求发送成功，并得到响应**/             if (result.getStatusLine().getStatusCode() == 200) {                 String str = "";                 try {                     /**读取服务器返回过来的json字符串数据**/                     str = EntityUtils.toString(result.getEntity());                     if (noNeedResponse) {                         return null;                     }                     /**把json字符串转换成json对象**/                     jsonResult = JSONObject.fromObject(str);                 } catch (Exception e) {                     logger.error("post请求提交失败:" + url, e);                 }             }         } catch (IOException e) {             logger.error("post请求提交失败:" + url, e);         }         return jsonResult;     }         /**      * 发送get请求      * @param url    路径      * @return      */     public static JSONObject httpGet(String url){         //get请求返回结果         JSONObject jsonResult = null;         try {             DefaultHttpClient client = new DefaultHttpClient();             //发送get请求             HttpGet request = new HttpGet(url);             HttpResponse response = client.execute(request);               /**请求发送成功，并得到响应**/             if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {                 /**读取服务器返回过来的json字符串数据**/                 String strResult = EntityUtils.toString(response.getEntity());                 /**把json字符串转换成json对象**/                 jsonResult = JSONObject.fromObject(strResult);                 url = URLDecoder.decode(url, "UTF-8");             } else {                 logger.error("get请求提交失败:" + url);             }         } catch (IOException e) {             logger.error("get请求提交失败:" + url, e);         }         return jsonResult;     } }

2、写业务代码发送Http请求

3、MVC配置文件设置Controller扫描目录

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<!-- 自动扫描且只扫描@Controller --> <context:component-scan base-package="com.wiselong.multichannel" use-default-filters="false">     <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan>

4、接收Http请求

接收post请求

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@Controller @RequestMapping(value = "/api/platform/exceptioncenter/exceptioninfo") public class ExceptionInfoController {     //注入     @Autowired     private ExceptionInfoBiz exceptionInfoBiz;       /**      * 创建异常信息请求      * @param requestBody 请求消息内容      * @param request 请求消息头      * @return jsonObject      */     @RequestMapping(             value="/create",             method = RequestMethod.POST     )     public ModelAndView createExceptionInfo(@RequestBody String requestBody, HttpServletRequest request) {         JSONObject jsonObject = JSONObject.fromObject(requestBody);         ComExceptionInfo comExceptionInfo = new ComExceptionInfo();         comExceptionInfo.setProjectName(jsonObject.getString("projectName"));         comExceptionInfo.setTagName(jsonObject.getString("tagName"));         exceptionInfoBiz.insert(comExceptionInfo);         //返回请求结果         JSONObject result= new JSONObject();         result.put("success", "true");         return new ModelAndView("", ResponseUtilsHelper.jsonSuccess(result.toString()));     }   }

接收get请求

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@Controller @RequestMapping(value="/api/platform/messagecenter/messages/sms") public class SmsController {     @Autowired     SmsSendBiz smsSendBiz;       /**      * 接收手机号码和内容往短信发送表插入一条记录      * @param requestbody 请求消息内容      * @param request 请求消息头      * @return jsonObject      */     @RequestMapping(             value="/send",             method= RequestMethod.GET     )     public ModelAndView sendSms(@RequestBody String requestbody, HttpServletRequest request) {         //获取请求URL及url后面传输的参数         String url = request.getRequestURL() + "?" + request.getQueryString();         url = BuildRequestUrl.decodeUrl(url);         String telePhone = RequestUtils.getStringValue(request, "telePhone");         String content = RequestUtils.getStringValue(request, "content");         smsSendBiz.insertTtMsQuequ(telePhone,content);         return new ModelAndView("", ResponseUtilsHelper.jsonResult("", true));     } }