CouchDB returns 通过 Android Volley 的错误 JSON 对象 GET 响应

Question

嘿，我的 Android CouchDB 项目有一些问题。

我在 Android 中使用 Volley 进行网络请求。

问题是我没有得到完整的 JSON 数据。请求的 url 是：

myserveradress:databaseport/databasename/documentname/

通过应用程序的响应是：

{"ok":true,"id":"E-c5b6d7c16ecb41cd8dadaf3514c968","rev":"1-41f6abc7851b1ad60d169149c557e7fc"}

如果我在浏览器中尝试完全相同 URL，我的回答是正确的： {"_id":"E-c5b6d7c16ecb41cd8dadaf3514c968","_rev":"1-41f6abc7851b1ad60d169149c557e7fc","player":{"solvedPuzzels":[false,false,false,false,false],"triesPerPuzzel":[0,0,0,0,0]},"invites":[],"settings":{"gameTime":4,"numberOfPlayers":2,"puzzels":7}}

奇怪的是，我在我的应用程序的多个请求中使用了它，并且在某些请求中它运行良好。

这是我的代码：拳头我有一个 Helper Class 用于 Volley 请求：

public class NetworkVolley {

public static JsonObjectRequest POST(String url, final JSONObject json, Response.Listener listener){
    JsonObjectRequest request = new JsonObjectRequest(Request.Method.PUT
            , url,json, listener,
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Log.e("Volley", "onErrorResponse: ", error );
                    Log.e("Volley", "onErrorResponse: "+new String(error.networkResponse.data, StandardCharsets.UTF_8) );
                }
            })
    {

        @Override
        public Map<String,String> getHeaders()throws AuthFailureError {
            Map<String, String> params = new HashMap<>();
            params.put("Accept-Charset", AppConfig.CHARSET);
            params.put("Content-Type", "application/json");
            params.put("Accept","application/json");
            String encoding =  Base64.encodeToString(AppConfig.SERVER_COUCHDB_AUTHENIFICATIONDATA.getBytes(Charset.forName("utf-8")), Base64.DEFAULT);
            params.put("Authorization","Basic "+ encoding);;
            return params;
        }

        @Override
        public byte[] getBody() {
            return json.toString().getBytes();
        }

    };

    return request;
}


public static JsonObjectRequest GET(String url, Response.Listener listener){
    JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null,
            listener,
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Log.e("Volley User", "onErrorResponse: ", error);
                }
            }) {

        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            Map<String, String> params = new HashMap<>();
            params.put("Accept-Charset", AppConfig.CHARSET);
            params.put("Content-Type", "application/json");
            params.put("Accept", "application/json");
            String encoding = Base64.encodeToString(AppConfig.SERVER_COUCHDB_AUTHENIFICATIONDATA.getBytes(Charset.forName("utf-8")), Base64.DEFAULT);
            params.put("Authorization", "Basic " + encoding);
            ;
            return params;
        }
    };
    return request;
}

}

这是我的片段：

@Override
public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    rootView = inflater.inflate(R.layout.fragment_invite, container, false);
    listView = (ListView) rootView.findViewById(R.id.listView);
    TV_numberOfPlayers = (TextView) rootView.findViewById(R.id.playerInfo);


    final InviteActivity activity = (InviteActivity) getActivity();
    numberOfPlayers = activity.getNumberOfPlayers();
    gameId = activity.getGameId();

    gameUrl = "myserveradress:databaseport/databasename/" + gameId + "/";

    userId = "userA";


    getFriendList();

    getGameObject();

    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            JSONArray invites = new JSONArray();
            try {
                invites = object.getJSONArray("invites");
                for (int i=0;i<=invites.length();i++){
                    if (!(invites.length()==0) ||(!(invites.get(i).equals(parent.getItemAtPosition(position))))){
                        invites.put(parent.getItemAtPosition(position));
                        object.remove("invites");
                        object.put("invites", invites);
                        setInvite();

                    }else {
                        Log.i("Invite","Same invited Person");
                        break;
                    }
                }

            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    });

    return rootView;
}

private void setInvite() {
    Response.Listener<JSONObject> POSTinvite = new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            getGameObject();
        }
    };
    Volley.newRequestQueue(getContext()).add(NetworkVolley.POST(gameUrl,object,POSTinvite));
}

private void getGameObject() {
    object = new JSONObject();
    Response.Listener<JSONObject> gameObjListener = new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            if (response!=null){
                object = response;
                Log.i("Game Obj", "onResponse: "+object);
                try {
                    TV_numberOfPlayers.setText(getString(R.string.inv_tv_invitetPlayers) + " " + object.getJSONArray("invites").length() + " / " + numberOfPlayers);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
    };
    Volley.newRequestQueue(getContext()).add(NetworkVolley.GET(gameUrl,gameObjListener));
}

private void getFriendList() {
    friendsearchUrl = "myserveradress:databaseport/databasename/_design/friendsearch/_view/friendsearch?key="+"\""+userId+"\"";

    friends = new ArrayList();

    Response.Listener<JSONObject> friendsListener = new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            try {
                for (int i=0;i<response.getJSONArray("rows").length();i++){
                    JSONObject object = new JSONObject(String.valueOf(response.getJSONArray("rows").get(i)));
                    friends.add(object.getString("value"));
                }
                adapter = new FriendsListAdapter(getActivity(),friends);
                listView.setAdapter(adapter);

            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    };
    Volley.newRequestQueue(getContext()).add(NetworkVolley.GET(friendsearchUrl,friendsListener));
}

这里 LOGCAT:

I/Game Obj: onResponse: {"_id":"E-69329c12008541949cba062559a3e2","_rev":"1-b0b6eb597bfe6905b06723953fbf6870","player":{"solvedPuzzels":[false,false,false,false,false],"triesPerPuzzel":[0,0,0,0,0]},"invites":[],"settings":{"gameTime":4,"numberOfPlayers":2}}

到目前为止一切正常...

I/Game Obj: onResponse: {"ok":true,"id":"E-69329c12008541949cba062559a3e2","rev":"2-2e7fa50583c3dbd4eca8eaf103567da7"}
W/System.err: org.json.JSONException: No value for invites

第二个输出我不明白为什么我没有收到完整的数据。

Answer 1

我解决了!!!

缓存是问题...

Volley.newRequestQueue(getContext()).getCache().clear();

如果我在执行 Volley GET 请求之前添加它

CouchDB returns 通过 Android Volley 的错误 JSON 对象 GET 响应

CouchDB returns wrong JSONObject GET reponse through Android Volley

android

network-programming

couchdb

couchdb-futon

android-volley