public static String doPost(String url){
        //建立httpClient物件
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String result = "";
        try{
            //建立http請求
            HttpPost httpPost = new HttpPost(url);
            httpPost.addHeader(
 
"Content-Type", "application/json");
            //建立請求內容
            String jsonStr = "{\"qry_by\":\"name\", \"name\":\"Tim\"}";
            StringEntity entity = new StringEntity(jsonStr);
            httpPost.setEntity(entity);
            response = httpClient.execute(httpPost);
            result 
 
= EntityUtils.toString(response.getEntity(),"utf-8");
            System.out.println(result);
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            //關閉資源
            if(response != null){
                try {
                    response.close();
                }
 
catch (IOException ioe){
                    ioe.printStackTrace();
                }
            }
            if(httpClient != null){
                try{
                    httpClient.close();
                }catch (IOException ioe){
                    ioe.printStackTrace();
                }
            }
        }
        return result;
    }

public static String doGet(String url){
        CloseableHttpClient httpClient = null;
        CloseableHttpResponse response = null;
        String result = "";
        try{
            //通過預設配置建立一個httpClient例項
            httpClient = HttpClients.createDefault();
            //建立httpGet遠端連線例項
            HttpGet httpGet = new HttpGet(url);
            //httpGet.addHeader("Connection", "keep-alive");
            //設定請求頭資訊
            httpGet.addHeader("Accept", "application/json");
            //配置請求引數
            RequestConfig requestConfig = RequestConfig.custom()
                    .setConnectTimeout(35000) //設定連線主機服務超時時間
                    .setConnectionRequestTimeout(35000)//設定請求超時時間
                    .setSocketTimeout(60000)//設定資料讀取超時時間
                    .build();
            //為httpGet例項設定配置
            httpGet.setConfig(requestConfig);
            //執行get請求得到返回物件
            response = httpClient.execute(httpGet);
            //通過返回物件獲取返回資料
            HttpEntity entity = response.getEntity();
            //通過EntityUtils中的toString方法將結果轉換為字串，後續根據需要處理對應的reponse code
            result = EntityUtils.toString(entity);
            System.out.println(result);

        }catch (ClientProtocolException e){
            e.printStackTrace();
        }catch (IOException ioe){
            ioe.printStackTrace();
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            //關閉資源
            if(response != null){
                try {
                    response.close();
                }catch (IOException ioe){
                    ioe.printStackTrace();
                }
            }
            if(httpClient != null){
                try{
                    httpClient.close();
                }catch (IOException ioe){
                    ioe.printStackTrace();
                }
            }
        }
        return result;
    }