Question

我在android中使用Volley库并创建一个像这样的JsonObjectRequest：

String JsonUrl = "192.168.1.3/json.py";    
JsonObjectRequest jsObjRequest = new JsonObjectRequest
                (Request.Method.GET, JsonUrl, null, new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        mTextView.setText("Json Response: " + response.toString());
                    }
                }, new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        mTextView.setText("Error in recieving JSON Response");
                    }
                });
        // Access the RequestQueue through your singleton class.
        MySingleton.getInstance(this).addToRequestQueue(jsObjRequest);

这是我的Python代码（json.py）：

import json

pythonDictionary = {'name':'Bob', 'age':44, 'isEmployed':True}
dictionaryToJson = json.dumps(pythonDictionary)
print(dictionaryToJson)

我很确定我的python代码不正确。我的问题是如何在python中编写代码来发送＆amp;使用Get或POST方法将JsonObjects接收到android？感谢。

Answer 1

我用以下代码解决了这个问题：

Android代码：

JsonObjectRequest jsObjRequest = new JsonObjectRequest
                (Request.Method.GET, JsonUrl, null, new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        try {
                            JSONObject obj = new JSONObject(response.toString());
                            String name = obj.getString("name");
                            String age = obj.getString("age");
                            data += "Name: " + name + "\nAge : " + age;
                            mTextView.setText(data);
                        }
                        catch (JSONException e) {
                            mTextView.setText(e.toString());
                        }
                    }
                }, new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        mTextView.setText("Error in recieving JSON Response:\n" + error.toString());
                    }
                }){
            @Override
            public Map<String, String> getHeaders() throws AuthFailureError {
                Map<String,String> params = new HashMap<String, String>();
                params.put("Content-Type","application/x-www-form-urlencoded");
                return params;
            }
        };
        // Access the RequestQueue through your singleton class.
        MySingleton.getInstance(this).addToRequestQueue(jsObjRequest);

Python代码：

from flask import Flask
import json

app = Flask(__name__)

@app.route('/', methods=['GET'])
def echo_msg():
    pythonDictionary = {'name': 'Bob', 'age': 44, 'isEmployed': True}
    dictionaryToJson = json.dumps(pythonDictionary)
    return dictionaryToJson

if __name__ == '__main__':
    app.run(host='0.0.0.0')

所以你可以为Python运行Flask web-server并像这样发送你的JsonObject（使用GET方法）。

发送＆amp;接收从Android到Python的JsonRequest

1 个答案: