Question

如何在json数组下面发布内容？

"LstUserOptions": [
  {
    "OptionID": "ca339e40-10cc-4459-b9ec-07f7df0f4c69"
  }
]

Answer 1

我找到了解决方法：

List<Map> carOptionJson = new List();
CarJson carJson = new CarJson("ca339e40-10cc-4459-b9ec-07f7df0f4c69");
carOptionJson.add(carJson.TojsonData());

var body = json.encode({
  "LstUserOptions": carOptionJson
});

http.Response response = await http.post(
    Uri.encodeFull(ConfigApi.SAVE),
    body: body,
    headers: {'Content-type': 'application/json'});

class CarJson {
  String OptionID;
  CarJson(this.OptionID);
  Map<String, dynamic> TojsonData() {
    var map = new Map<String, dynamic>();
    map["OptionID"] = OptionID;
    return map;
  }
}

Answer 2

如何使用dio包完成这项工作我用dio发送了整个数据，现在我想用它发送一个json数组，如果假设我的json数组是body，则此代码是正确的

 private void sendData(ArrayList list) throws JSONException {

    JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST, YOUR_URL, setJsonObject(list)/*This is the function you need*/, new Response.Listener<JSONObject>() {

        @Override
        public void onResponse(JSONObject response) {


        }

    }, new Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            VolleyLog.d(TAG, "Error: " + error.getMessage(),Toast.LENGTH_SHORT).show();

        }

    });

    RequestQueue requestQueue = Volley.newRequestQueue(LogInActivity.this);
    requestQueue.add(jsonObjReq);
}


//create json object that contain ArrayList contents  
private JSONObject setJsonObject(َArrayList list) throws JSONException {
    JSONObject jsonobject_one = new JSONObject();
    JSONArray jsonArray = new JSONArray();

    for(int i =0 ; i<list.size ; i++) {

    JSONObject jsonobject = new JSONObject();
    jsonobject .put("param"+i, list.get(i) );
    jsonArray.put(jsonobject);

    }

    jsonobject_one.put("params_array",jsonArray);
    return jsonobject_one;

}

Flutter如何发布JSON数组

2 个答案: