Java以Post方式请求接口

    /**
     * 设置请求头Header以Post方式请求接口
     *
     * @author liangjunfei
     * @param sj 请求数据
     */
    public void inform(String sj){
        // 请求接口地址
        String url = "http://127.0.0.1/xxx";
        // Post请求
        HttpPost httpPost = new HttpPost(url);
        try {
        	// 请求参数非空判断
            if (StringUtil.isNotEmpty(sj)){
                // 请求数据,JSON格式
                JSONObject jsonObject = new JSONObject();
                jsonObject.put("sj",sj);
                // 设置请求头Header参数
                httpPost.addHeader("Content-type", "application/json");
                httpPost.addHeader("xxx",xxx);
                httpPost.addHeader("xxx",xxx);
                // 传入请求数据
                StringEntity entity = new StringEntity(jsonObject.toString(), "utf-8");
                // 设置请求数据格式JSON
                entity.setContentEncoding("UTF-8");
                entity.setContentType("application/json");
                httpPost.setEntity(entity);
                // 请求接口
                CloseableHttpClient httpClient = HttpClients.createDefault();
                CloseableHttpResponse result = httpClient.execute(httpPost);
                    // 接收接口响应数据
                    String str = "";
                    JSONObject object = null;

                    // 读取接口响应数据返的JSON字符串数据
                    str = EntityUtils.toString(result.getEntity(), "utf-8");
                    // 把JSON字符串转换成JSON对象
                    object = JSONObject.parseObject(str);
                    // 日志
                    logger.info("接口响应数据 :" + object);
                }
        }catch (Exception e){
            // 日志
            logger.error("Service inform e = " + e);
        } finally {
            // 释放Post
            httpPost.releaseConnection();
        }
    }

    /**
     * post请求传输json参数（application/json）
     * 
     * @author liangjunfei
     * @param url   请求地址
     * @param param 请求参数
     * @return JSONObject
     */
    public static JSONObject httpPostToJson(String url, String param) {
        JSONObject jsonResult = null;
        HttpPost httpPost = new HttpPost(url);
        try {
            CloseableHttpClient httpClient = HttpClients.createDefault();
            httpPost.setConfig(requestConfig);
            if (StringUtil.isNotEmpty(param)) {
                // 解决中文乱码问题
                StringEntity entity = new StringEntity(param, "utf-8");
                entity.setContentEncoding("UTF-8");
                entity.setContentType("application/json");
                httpPost.setEntity(entity);
            }
            CloseableHttpResponse result = httpClient.execute(httpPost);
            String str = EntityUtils.toString(result.getEntity(), "utf-8");
            jsonResult = JSONObject.parseObject(str);
            logger.info("httpPost result:{}",result.toString());
        } catch (IOException e) {
            logger.error("post请求提交失败:" + url, e);
        } finally {
            httpPost.releaseConnection();
        }
        return jsonResult;
    }