Question

我正在尝试使用Volley在我的应用中实现登录功能。我正在连接到localhost并执行脚本以从数据库中获取数据。使用日志，我发现执行永远不会进入onResponse对象的Response.Listener部分。

以下是代码：

Response.Listener<String> responseListener = new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {
                    try {
                        Log.d(TAG, "onResponse()");
                        JSONObject jsonResponse = new JSONObject(response);
                        boolean success = jsonResponse.getBoolean("success");
                        boolean email_found = jsonResponse.getBoolean("email_found");

                        if (success) {
                            Fragment fragment = getFragmentManager().findFragmentByTag(MainActivity.OPTIONS_TAG);
                            if (fragment == null) {
                                fragment = new LoginFragment();
                            }
                            getFragmentManager().beginTransaction().replace(R.id.container, fragment, MainActivity.OPTIONS_TAG).commit();
                            Toast.makeText(getContext(), "Successfull login", Toast.LENGTH_SHORT);
                        } else if (email_found){
                            mPasswordView.setError(getString(R.string.error_incorrect_password));
                            mPasswordView.requestFocus();
                        } else {
                            mEmailView.setError(getString(R.string.error_invalid_email));
                            mEmailView.requestFocus();
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            };


            Log.d(TAG, "LoginRequest");
            LoginRequest loginRequest = new LoginRequest(email,password, responseListener);

LoginRequest类：

class LoginRequest extends StringRequest {
    private static final String LOGIN_REQUEST_URL = "http://localhost/myportal/login.php";
    private Map <String, String> params;

    public LoginRequest (String email, String password, Response.Listener<String> listener) {
        super(Request.Method.POST, LOGIN_REQUEST_URL, listener, null);
        params = new HashMap<>();
        params.put("email", email);
        params.put("password", password);
    }

    public Map<String, String> getParams() {
        return params;

    }
}

PHP脚本：

<?php
    $con = mysqli_connect("localhost", "root", "" , "myportal");

    $email = $_POST["email"];
    $password = $_POST["password"];
    $response = array();
    $response["email_found"]=false;

    $statement = mysqli_prepare($con, "SELECT * FROM user WHERE email = ?");
    mysqli_stmt_bind_param($statement, "s", $email);
    mysqli_stmt_execute($statement);

    mysqli_stmt_store_result($statement);
    if (mysqli_stmt_fetch($statement)){
        $response["email_found"]=true;
    }

    $statement = mysqli_prepare($con, "SELECT * FROM user WHERE email = ? AND password = ?");
    mysqli_stmt_bind_param($statement, "ss", $email, $password);
    mysqli_stmt_execute($statement);

    mysqli_stmt_store_result($statement);
    mysqli_stmt_bind_result($statement, $userID, $name, $lastname, $email, $password, $year);

    $response["success"] = false;

    while (mysqli_stmt_fetch($statement)) {
        $response["success"] = true;
        $response["name"] = $name;
        $response["lastname"] = $lastname;
        $response["email"] = $email;
        $response["password"] = $password;
        $response["year"] = $year;
    }

    echo json_encode($response);
?>

Logcat输出：

05-24 21:29:05.812 2114-2496/com.google.android.gms E/Volley: [133] BasicNetwork.performRequest: Unexpected response code 307 for https://android.googleapis.com/nova/herrevad/network_quality_info
05-24 21:29:05.812 2114-17798/com.google.android.gms W/RmtRprtRfrshSvc: [19078] RemoteReportsRefreshService.a: java.util.concurrent.ExecutionException: com.android.volley.ServerError
                                                                        java.util.concurrent.ExecutionException: com.android.volley.ServerError
                                                                            at com.android.volley.toolbox.RequestFuture.doGet(SourceFile:117)
                                                                            at com.android.volley.toolbox.RequestFuture.get(SourceFile:88)
                                                                            at com.google.android.gms.herrevad.services.RemoteReportsRefreshService.a(SourceFile:134)
                                                                            at com.google.android.gms.herrevad.services.RemoteReportsRefreshService.a(SourceFile:89)
                                                                            at com.google.android.gms.gcm.au.run(SourceFile:140)
                                                                         Caused by: com.android.volley.ServerError
                                                                            at com.android.volley.toolbox.BasicNetwork.performRequest(SourceFile:163)
                                                                            at com.google.android.gms.common.server.v.performRequest(SourceFile:64)
                                                                            at com.android.volley.NetworkDispatcher.run(SourceFile:112)
05-24 21:29:05.946 1532-2199/system_process I/AccountManagerService: getTypesVisibleToCaller: isPermitted? true
05-24 21:29:05.947 2114-17806/com.google.android.gms E/ProtoReq: [19079] a.a: want to send authenticated request, but no Google account on device
05-24 21:29:18.207 2114-18125/com.google.android.gms W/BaseAppContext: Using Auth Proxy for data requests.

Answer 1

所以解决方法是将IP更改为适当的IP并添加我忘记的RequestQueue。

RequestQueue queue = Volley.newRequestQueue(getContext());
queue.add(loginRequest);

Android - 使用volley而不是获得响应

1 个答案: