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java - E/Volley : [126] BasicNetwork. PerformRequest:意外响应代码 500

转载 作者:行者123 更新时间:2023-12-01 06:09:18 26 4
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为什么当我点击“登录”按钮时出现此错误:“E/Volley: [126] BasicNetwork.performRequest: 意外响应代码 500”?

PS:它适用于本地,因此适用于本地数据库。

这是我的代码:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

配置.java:

public class Config {
//URL to our login.php file
//public static final String LOGIN_URL = "http://192.168.94.1/Android/LoginLogout/login.php";
// public static final String LOGIN_URL = "http://10.0.2.2:8888/phpmyadmin/import.php#PMAURL-5:sql.php?db=androiddb&table=androiddb&server=1&target=&token=809562ca509cc18a182d0f6b0bef5485/login.php";
//public static final String LOGIN_URL = "http://192.168.1.140/Android/LoginLogout/login.php";
public static final String LOGIN_URL ="http://10.0.2.2:8888/androiddb/login.php";
//Keys for email and password as defined in our $_POST['key'] in login.php
public static final String KEY_EMAIL = "email";
public static final String KEY_PASSWORD = "password";

//If server response is equal to this that means login is successful
public static final String LOGIN_SUCCESS = "success";

//Keys for Sharedpreferences
//This would be the name of our shared preferences
public static final String SHARED_PREF_NAME = "myloginapp";

//This would be used to store the email of current logged in user
public static final String EMAIL_SHARED_PREF = "email";

//We will use this to store the boolean in sharedpreference to track user is loggedin or not
public static final String LOGGEDIN_SHARED_PREF = "loggedin";
}

登录 Activity .java:

public class LoginActivity extends AppCompatActivity implements View.OnClickListener {

//Defining views
private EditText editTextEmail;
private EditText editTextPassword;
private AppCompatButton buttonLogin;

//boolean variable to check user is logged in or not
//initially it is false
private boolean loggedIn = false;

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

//Initializing views
editTextEmail = (EditText) findViewById(R.id.editTextEmail);
editTextPassword = (EditText) findViewById(R.id.editTextPassword);

buttonLogin = (AppCompatButton) findViewById(R.id.buttonLogin);

//Adding click listener
buttonLogin.setOnClickListener(this);
}

@Override
protected void onResume() {
super.onResume();
//In onresume fetching value from sharedpreference
SharedPreferences sharedPreferences = getSharedPreferences(Config.SHARED_PREF_NAME,Context.MODE_PRIVATE);

//Fetching the boolean value form sharedpreferences
loggedIn = sharedPreferences.getBoolean(Config.LOGGEDIN_SHARED_PREF, false);

//If we will get true
if(loggedIn){
//We will start the Profile Activity
Intent intent = new Intent(LoginActivity.this, ProfileActivity.class);
startActivity(intent);
}
}

private void login(){
//Getting values from edit texts
final String email = editTextEmail.getText().toString().trim();
final String password = editTextPassword.getText().toString().trim();

//Creating a string request
StringRequest stringRequest = new StringRequest(Request.Method.POST, Config.LOGIN_URL,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
//If we are getting success from server
if(response.equalsIgnoreCase(Config.LOGIN_SUCCESS)){
//Creating a shared preference
SharedPreferences sharedPreferences = LoginActivity.this.getSharedPreferences(Config.SHARED_PREF_NAME, Context.MODE_PRIVATE);

//Creating editor to store values to shared preferences
SharedPreferences.Editor editor = sharedPreferences.edit();

//Adding values to editor
editor.putBoolean(Config.LOGGEDIN_SHARED_PREF, true);
editor.putString(Config.EMAIL_SHARED_PREF, email);

//Saving values to editor
editor.commit();

//Starting profile activity
Intent intent = new Intent(LoginActivity.this, ProfileActivity.class);
startActivity(intent);
}else{
//If the server response is not success
//Displaying an error message on toast
Toast.makeText(LoginActivity.this, "Invalid username or password", Toast.LENGTH_LONG).show();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//You can handle error here if you want
}
}){
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params = new HashMap<>();
//Adding parameters to request
params.put(Config.KEY_EMAIL, email);
params.put(Config.KEY_PASSWORD, password);
// params.put("Content-Type", "application/json; charset=utf-8");
//returning parameter
return params;
}
};

//Adding the string request to the queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}

@Override
public void onClick(View v) {
//Calling the login function
login();
}
}

DBConnect.php:

<?php
define('HOST','localhost');
define('USER',);
define('PASS','');
define('DB','androiddb');

$con = mysqli_connect(HOST,USER,PASS,DB) or die('Unable to Connect');

登录.php:

<?php 

if($_SERVER['REQUEST_METHOD']=='POST'){
//Getting values
$username = $_POST['email'];
$password = $_POST['password'];

//Creating sql query
$sql = "SELECT * FROM users WHERE email='$username' AND password='$password'";

//importing dbConnect.php script
require_once('dbConnect.php');

//executing query
$result = mysqli_query($con,$sql);

//fetching result
$check = mysqli_fetch_array($result);

//if we got some result
if(isset($check)){
//displaying success
echo "success";
}else{
//displaying failure
echo "failure";
}
mysqli_close($con);
}

enter image description here

最佳答案

问题不是你的代码而是服务器。 500 表示内部服务器错误

关于java - E/Volley : [126] BasicNetwork. PerformRequest:意外响应代码 500,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38361985/

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