flask서버를 이용한 안드로이드앱 전송

 

import flask

app = flask.Flask(__name__)

@app.route('/', methods=['GET', 'POST'])
def handle_request():
    postBody = flask.request.get_data()
    postBodyStr = postBody.decode('utf-8')
    print("Post Body:", postBodyStr)

    return "Flask Server & Android are Working Successfully"

if __name__ == '__main__':
    app.run(host="192.168.168.163", port=5000, debug=True)

    implementation 'com.squareup.okhttp3:okhttp:3.4.1'

public class MainActivity extends Activity  {
    private Context context;
    Button btn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        context = this;

        btn = findViewById(R.id.connect_btn);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                connectServer();
            }
        });

    }

    void connectServer(){
        String postUrl = "http://" + "192.168.168.163" + ":" + 5000 + "/";

        String postBodyText="안녕하십니까?";
        MediaType mediaType = MediaType.parse("text/plain");
        RequestBody postBody = RequestBody.create(mediaType, postBodyText);

        postRequest(postUrl, postBody);
    }

    void postRequest(String postUrl, RequestBody postBody) {

        OkHttpClient client = new OkHttpClient();

        Request request = new Request.Builder()
                .url(postUrl)
                .post(postBody)
                .build();

        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                // Cancel the post on failure.
                call.cancel();

                // In order to access the TextView inside the UI thread, the code is executed inside runOnUiThread()
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        TextView responseText = findViewById(R.id.responseText);
                        responseText.setText("Failed to Connect to Server");
                    }
                });
            }

            @Override
            public void onResponse(Call call, final Response response) throws IOException {
                // In order to access the TextView inside the UI thread, the code is executed inside runOnUiThread()
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        TextView responseText = findViewById(R.id.responseText);
                        try {
                            responseText.setText(response.body().string());
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                });
            }
        });
    }
}