HttpPost请求将带有数组json格式数据作为请求体传入的简单处理方法

通过httpclient的post方法发送json参数进行接口测试。借鉴知乎上“云层”的提供的方法。

链接：https://www.zhihu.com/question/30878548/answer/121149629

public static String sendHttpPost(String url, String body) throws Exception {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
httpPost.addHeader("Content-Type", "application/json");
httpPost.setEntity(new StringEntity(body));
CloseableHttpResponse response = httpClient.execute(httpPost);
System.out.println(response.getStatusLine().getStatusCode() + "\n");
HttpEntity entity = response.getEntity();
String responseContent = EntityUtils.toString(entity, "UTF-8"); 
System.out.println(responseContent);
response.close();
httpClient.close();
return responseContent;
}

其中httpPost.setEntity(new StringEntity(body));body部分是JSON数据格式，可以不是定长数据，可以根据需求定义成数组形式，如下：

{
   "splineList" : 
   [
      {
         "Points" : 
         {
            "Pos" : [
               {
                  "Xasis" : 1.66156307383845,
                  "Yasis" : 132.2036349238536
               },
               {
                  "Xasis" : 2.598720236773715,
                  "Yasis" : 186.8623164821516
               },
               {
                  "Xasis" : 3.598720236773715,
                  "Yasis" : 186.8623164821516
               }
            ]
         }
      },
      {
         "Points" : 
         {
            "Pos" : [
               {
                  "Xasis" : 4.66156307383845,
                  "Yasis" : 132.2036349238536
               },
               {
                  "Xasis" : 5.598720236773715,
                  "Yasis" : 186.8623164821516
               }
            ]
         }
      },
      {
         "Points" : 
         {
            "Pos" : [
               {
                  "Xasis" : 6.66156307383845,
                  "Yasis" : 132.2036349238536
               },
               {
                  "Xasis" : 7.598720236773715,
                  "Yasis" : 186.8623164821516
               },
               {
                  "Xasis" : 17.598720236773715,
                  "Yasis" : 186.8623164821516
               },
               {
                  "Xasis" : 27.598720236773715,
                  "Yasis" : 186.8623164821516
               },
               {
                  "Xasis" : 37.598720236773715,
                  "Yasis" : 186.8623164821516
               }
            ]
         }
      }
   ]
}

其中，splineList有多个Points组成，Points又由多个Xasis，Yasis坐标组成.

Json格式解释和编解码开源库请参考：http://json.org/json-zh.html.