httpclient提交json参数

 private void httpReqUrl(List<HongGuTan> list, String url)
             throws ClientProtocolException, IOException {  

         logger.info("httpclient执行新闻资讯接口开始。");
         JSONObject json = new JSONObject();
         DefaultHttpClient httpClient = new DefaultHttpClient();  

         HttpPost method = new HttpPost(url);  

         // 设置代理
         if (IS_NEED_PROXY.equals("1")) {
             HttpHost proxy = new HttpHost("192.168.13.19", 7777);
             httpClient.getParams().setParameter(ConnRouteParams.DEFAULT_PROXY, proxy);
         }  

         if (list != null && list.size() > 0) {
             logger.info("循环处理数据列表大小list.size={}", list != null ? list.size() : 0);  

             // 开始循环组装post请求参数,使用倒序进行处理
             for (int i = list.size() - 1; i >= 0; i--) {
                 HongGuTan bean = list.get(i);
                 if (bean == null) {
                     continue;
                 }
                 // 验证参数
                 Object[] objs = { bean.getTitle(), bean.getContent(),
                         bean.getSourceUrl(), bean.getSourceFrom(),
                         bean.getImgUrls() };
                 if (!validateData(objs)) {
                     logger.info("参数验证有误。");
                     continue;
                 }
                 // 接收参数json列表
                 JSONObject jsonParam = new JSONObject();
                 jsonParam.put("chnl_id", "11");// 红谷滩新闻资讯，channelId 77
                 jsonParam.put("title", bean.getTitle());// 标题
                 jsonParam.put("content", bean.getContent());// 资讯内容
                 jsonParam.put("source_url", bean.getSourceUrl());// 资讯源地址
                 jsonParam.put("source_name", bean.getSourceFrom());// 来源网站名称
                 jsonParam.put("img_urls", bean.getImgUrls());// 采用 url,url,url 的格式进行图片的返回  

                 StringEntity entity = new StringEntity(jsonParam.toString(),"utf-8");//解决中文乱码问题
                 entity.setContentEncoding("UTF-8");
                 entity.setContentType("application/json");
                 method.setEntity(entity);    

                 //这边使用适用正常的表单提交   

 //               List<BasicNameValuePair> pairList = new ArrayList<BasicNameValuePair>();
                 //pairList.add(new BasicNameValuePair("chnl_id", "11"));
                 //pairList.add(new BasicNameValuePair("title", bean.getTitle()));// 标题
                 //pairList.add(new BasicNameValuePair("content", bean.getContent()));// 资讯内容
                 //pairList.add(new BasicNameValuePair("source_url", bean.getSourceUrl()));// 资讯源地址
                 //pairList.add(new BasicNameValuePair("source_name", bean.getSourceFrom()));// 来源网站名称
                 //pairList.add(new BasicNameValuePair("img_urls", bean.getImgUrls()));// 采用 url,url,url 的格式进行图片的返回
                 //method.setEntity(new UrlEncodedFormEntity(pairList, "utf-8"));   

                 HttpResponse result = httpClient.execute(method);  

                 // 请求结束，返回结果
                 String resData = EntityUtils.toString(result.getEntity());
                 JSONObject resJson = json.parseObject(resData);
                 String code = resJson.get("result_code").toString(); // 对方接口请求返回结果：0成功  1失败
                 logger.info("请求返回结果集{'code':" + code + ",'desc':'" + resJson.get("result_desc").toString() + "'}");  

                 if (!StringUtils.isBlank(code) && code.trim().equals("0")) {// 成功
                     logger.info("业务处理成功！");
                 } else {
                     logger.error("业务处理异常");
                     Constants.dateMap.put("lastMaxId", bean.getId());
                     break;
                 }
             }
         }
     }