java-未找到适合JsonObjectRequest的构造函数

概述错误：Error:(164,40)error:nosuitableconstructorfoundforJsonObjectRequest(int,String,>,)constructorJsonObjectRequest.JsonObjectRequest(String,JSONObject,Listener,ErrorListener)isnotapplicable(actualargumentintcannotbeconverted

错误：

Error:(164, 40) error: no suitable constructor found for
JsonObjectRequest(int,String,>,) constructor
JsonObjectRequest.JsonObjectRequest(String,JSONObject,Listener,ErrorListener)
is not applicable (actual argument int cannot be converted to String
by method invocation conversion) constructor
JsonObjectRequest.JsonObjectRequest(int,String,JsONObject,Listener,ErrorListener)
is not applicable (actual and formal argument Lists differ in length)

我相信问题出在class makeJsonObjectRequest上,有人可以帮我吗？

我的课：

<!-- language: java -->public class MainActivity extends ActionBaractivity {    public static String API_pvp_net = ".API.pvp.net/API/lol/"; // URL API    // Insira a Sua Key depois do sinal de igual exemplo = "?API_key=sua-key-da-riot"    public static String DEVELOPMENT_API_KEY = "?API_key=xxxxx-c258-48ab-9f52-af4f52b45e4c"; // Key API RIOT    // ---------------------------------    public static String summoner_by_name = "v1.4/summoner/by-name/"; // Classe API URL    public static String aUrl; // Url    public static String Res_Web; // Resultado do Webbroser    public static String Nome_Invocador; // Pega o Nome do invocador Do Txt_INVOCADOR    private EditText etNick;    private String nick;    private button btnOk;    private Spinner rg;    private invocador inv;    private TextVIEw tvLevel;    private TextVIEw Level;    private TextVIEw ID;    private static String TAG = MainActivity.class.getSimplename();    private String JsonResponse;    private ProgressDialog pDialog;    ArrayAdapter<String> adapter;    ArrayList<String> arrayInv;    Summoner summoner = new Summoner();    private voID preencherInv() {        arrayInv.add("BR");        arrayInv.add("EUNE");        arrayInv.add("EUW");    }    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_main);        pDialog = new ProgressDialog(this);        pDialog.setMessage("Please wait...");        pDialog.setCancelable(false);        etNick = (EditText) findVIEwByID(R.ID.etNick);        btnOk = (button) findVIEwByID(R.ID.btnOk);        rg = (Spinner) findVIEwByID(R.ID.spRG);        tvLevel = (TextVIEw) findVIEwByID(R.ID.tvLevel);        inv = new invocador();        Level = (TextVIEw) findVIEwByID(R.ID.level);        ID = (TextVIEw) findVIEwByID(R.ID.ID);        arrayInv = new ArrayList<>();        preencherInv();        adapter = new ArrayAdapter<String>(                this,                androID.R.layout.simple_dropdown_item_1line,                arrayInv);        rg.setAdapter(adapter);        btnOk.setonClickListener(new VIEw.OnClickListener() {            @OverrIDe            public voID onClick(VIEw v) {                inv.setNick(etNick.getText().toString());                inv.setRg((String) rg.getSelectedItem());                RequestQueue mRequestQueue;                // Instantiate the cache                Cache cache = new diskBasedCache(getCacheDir(), 1024 * 1024); // 1MB cap                // Set up the network to use httpURLConnection as the http clIEnt.                BasicNetwork network = new BasicNetwork(new HurlStack());                // Instantiate the RequestQueue with the cache and network.                mRequestQueue = new RequestQueue(cache, network);                // Start the queue                mRequestQueue.start();                Pesquisa_invocador();                // Formulate the request and handle the response.                makeJsonObjectRequest();            }        });    }    public voID Pesquisa_invocador() {        // Eu tiro os espacos da String do _nome por que nas resposta ela vem [sem espacos e Toda minuscula]        Nome_Invocador = inv.getNick().tolowerCase();        // Monto a URL API [CLASSE DA API] com 2 Parametro [Regiao] [NomeInvocador]  + [CHAVE DE DESENVolVEDOR]        aUrl = "https://" + inv.getRg().tolowerCase() + API_pvp_net + inv.getRg().tolowerCase() + "/" + summoner_by_name + Nome_Invocador + DEVELOPMENT_API_KEY; ;        //Abro a URL no Webbroser    }    private voID makeJsonObjectRequest() {        showpDialog();        JsonObjectRequest JsonObjReq = new JsonObjectRequest(Method.GET,                aUrl, new Response.Listener<JsONObject>() {            @OverrIDe            public voID onResponse(JsONObject response) {                Log.d(TAG, response.toString());                try {                    // Parsing Json object response                    // response will be a Json object                    String ID = response.getString("ID");                    String name = response.getString("name");                    String summonerLevel = response.getString("summonerLevel");                    JsonResponse = "";                    JsonResponse += "name: " + name + "\n\n";                    JsonResponse += "Level: " + summonerLevel + "\n\n";                    JsonResponse += "ID: " + ID + "\n\n";                    tvLevel.setText(JsonResponse);                } catch (JsONException e) {                    e.printstacktrace();                    Toast.makeText(getApplicationContext(),                            "Error: " + e.getMessage(),                            Toast.LENGTH_LONG).show();                }                hIDepDialog();            }        }, new Response.ErrorListener() {            @OverrIDe            public voID one rrorResponse(VolleyError error) {                VolleyLog.d(TAG, "Error: " + error.getMessage());                Toast.makeText(getApplicationContext(),                        error.getMessage(), Toast.LENGTH_SHORT).show();                // hIDe the progress dialog                hIDepDialog();            }        });        // Adding request to request queue        AppController.getInstance().addToRequestQueue(JsonObjReq);    }    private voID showpDialog() {        if (!pDialog.isShowing())            pDialog.show();    }    private voID hIDepDialog() {        if (pDialog.isShowing())            pDialog.dismiss();    }    @OverrIDe    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_main, menu);        return true;    }    @OverrIDe    public boolean onoptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroIDManifest.xml.        int ID = item.getItemID();        //noinspection SimplifiableIfStatement        if (ID == R.ID.action_settings) {            return true;        }        return super.onoptionsItemSelected(item);    }}

解决方法:

换线

JsonObjectRequest JsonObjReq = new JsonObjectRequest(Method.GET,            aUrl, new Response.Listener<JsONObject>(){

至

JsonObjectRequest JsonObjReq = new JsonObjectRequest(Method.GET,            aUrl, null, new Response.Listener<JsONObject>(){

可以将GET请求的aJsonObject保留为空,因为仅在要将数据发送到服务器(例如POST / PUT / PATCH请求)时才需要它,java doc中此参数的描述为：

@param JsonRequest A {@link JsONObject} to post with the request. Null is allowed andindicates no parameters will be posted along with request.

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