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com.android.volley.NoConnectionError: java.net.ConnectException: 连接被拒绝

我需要帮助。这是我的活动登录名,当单击登录按钮时,他给我一个错误:com.android.volley.NoConnectionError:java.net.ConnectException:Connection refused。我使用 2 个权限

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
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有我的登录代码,在顶部我们有变量:

private EditText mPasswordView, mUserName;
    private ProgressBar loading;
    private Button btnLogin;
    private static String URL_LOGIN = "http://localhost/ligacao_bd/login.php";
    private View mProgressView;
    private View mLoginFormView;
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有我的按钮登录设置:

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

    loading = findViewById(R.id.loading);


    // Set up the login form.
    mUserName = (EditText) findViewById(R.id.textUserName);
    mPasswordView = (EditText) findViewById(R.id.textPassword);
    btnLogin = (Button) findViewById(R.id.btnLogin); // login button

    btnLogin.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View view) {
            String email = mUserName.getText().toString().trim();
            String …
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java connection android

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