java后台JSON接收接口返回

示例：接受第三方接口参数

总结：

1，如果返回的str中包含集合

str:{"retCode":1,"retMsg":"success","result":[{"lng":113.401028,"lat":23.057544,"locateType":0},{"lng":113.401028,"lat":23.057544,"locateType":0}]}
JSONObject retJson = JSONObject.fromObject(str);
JSONArray jsonArray = retJson.getJSONArray("result");
for (int i = 0; i < jsonArray.size(); i++) { //提取出family中的所有
JSONObject histObj = new JSONObject();
JSONObject dataJson = (JSONObject) jsonArray.get(i);
histObj.put("locateType",dataJson.get("locateType"));
histObj.put("lng",dataJson.get("lng"));
histObj.put("lat",dataJson.get("lat"));JSONArray jsonArray = retJson.getJSONArray("result");
}

2，如果返回的str中只要字符

 

str:{"retCode":1,"retMsg":"success","result":"test"]}

JSONObject retJson = JSONObject.fromObject(str);
String result =retJson.get("result");

3，如果返回的str中包含对象

str:{"retCode":1,"retMsg":"success","result":{"lng":113.401028,"lat":23.057544,"locateType":0}}
JSONObject retJson = JSONObject.fromObject(str);
JSONObject jsonObj = retJson.getJSONArray("result");
JSONObject dataJson = (JSONObject) jsonArray.get(i);
histObj.put("locateType",dataJson.get("locateType"));
histObj.put("lng",dataJson.get("lng"));
histObj.put("lat",dataJson.get("lat"));JSONArray jsonArray = retJson.getJSONArray("result");