java - 我收到如下所示的 HTTP 响应字符串。我想要响应字符串中的 subject_id 和状态字符串

Question

响应字符串是这样的:

{
  "images": [
    {
      "transaction": {
        "status": "success",
        "topLeftX": 325,
        "topLeftY": 451,
        "gallery_name": "Ironman",
        "subject_id": "Tony",
        "confidence": 0.99414,
        "height": 630,
        "width": 630,
        "face_id": 1,
        "quality": 1.75477
      },
      "candidates": [
        {
          "subject_id": "Tony",
          "confidence": 0.99414,
          "enrollment_timestamp": "1487644861022"
        },
        {
          "subject_id": "Tony",
          "confidence": 0.99414,
          "enrollment_timestamp": "1487644876280"
        }
      ]
    }
  ]
}

我尝试了这段代码但不起作用..

JSONArray arr = new JSONArray(response); 
JSONObject jObj = arr.getJSONObject(0); 
String status = jObj.getString("status"); 
String message = jObj.getString("subject_id");

<小时/>

Answer 1

使用json简单lib

JSONObject json = new JSONObject(yourString);
JSONArray images = json.getJSONArray("images");

你可以循环抛出这个数组

for (int i = 0; i < images.length(); i++) {
  JSONObject o = images.getJSONObject(i);
  ....
}