我在Android应用程序上注册用户时出现问题我正在建立，我收到服务器的拒绝回复，这是我得到的错误在调试时：
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<b>Warning</b>: mysqli_connect(): (HY000/2002): Connection refused in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>3</b><br />
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<b>Warning</b>: mysqli_prepare() expects parameter 1 to be mysqli, boolean given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>19</b><br />
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<b>Warning</b>: mysqli_stmt_bind_param() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>20</b><br />
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<b>Warning</b>: mysqli_stmt_execute() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>21</b><br />
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<b>Warning</b>: mysqli_stmt_store_result() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>22</b><br />
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<b>Warning</b>: mysqli_stmt_num_rows() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>23</b><br />
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<b>Warning</b>: mysqli_stmt_close() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>24</b><br />
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<b>Warning</b>: mysqli_prepare() expects parameter 1 to be mysqli, boolean given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>12</b><br />
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<b>Warning</b>: mysqli_stmt_bind_param() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>13</b><br />
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<b>Warning</b>: mysqli_stmt_execute() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>14</b><br />
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<b>Warning</b>: mysqli_stmt_close() expects parameter 1 to be mysqli_stmt, null given in <b>/storage/h4/905/1013905/public_html/register.php</b> on line <b>15</b><br />
{"success":true}
这是我的php文件：
<?php
$connect = mysqli_connect("localhost:3306", "id1013905_user", "MY PASSWORD", "id1013905_trhtkv");
$name = $_POST["name"];
$age = $_POST["age"];
$username = $_POST["username"];
$password = $_POST["password"];
function registerUser() {
global $connect, $name, $age, $username, $password;
$passwordHash = password_hash($password, PASSWORD_DEFAULT);
$statement = mysqli_prepare($connect, "INSERT INTO user (name, age, username, password) VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($statement, "siss", $name, $age, $username, $passwordHash);
mysqli_stmt_execute($statement);
mysqli_stmt_close($statement);
}
function usernameAvailable() {
global $connect, $username;
$statement = mysqli_prepare($connect, "SELECT * FROM user WHERE username = ?");
mysqli_stmt_bind_param($statement, "s", $username);
mysqli_stmt_execute($statement);
mysqli_stmt_store_result($statement);
$count = mysqli_stmt_num_rows($statement);
mysqli_stmt_close($statement);
if ($count < 1){
return true;
}else {
return false;
}
}
$response = array();
$response["success"] = false;
if (usernameAvailable()){
registerUser();
$response["success"] = true;
}
echo json_encode($response);
?>
注册类我使用：
package com.ben.owner.say_something;
import android.app.AlertDialog;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.Queue;
public class RegisterActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
final EditText etAge = (EditText)findViewById(R.id.etAge);
final EditText etName = (EditText)findViewById(R.id.etName);
final EditText etUsername = (EditText)findViewById(R.id.etUsername);
final EditText etPassword = (EditText)findViewById(R.id.etPassword);
final Button bRegister = (Button) findViewById(R.id.bRegister);
bRegister.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String name = etName.getText().toString();
final String username = etUsername.getText().toString();
final String password = etPassword.getText().toString();
final int age = Integer.parseInt(etAge.getText().toString());
Response.Listener<String>responseListener = new Response.Listener<String>(){
@Override
public void onResponse(String response) {
try {
JSONObject jsonResponse = new JSONObject(response);
boolean success = jsonResponse.getBoolean("success");
if (success){
Intent intent = new Intent(RegisterActivity.this, LoginActivity.class);
RegisterActivity.this.startActivity(intent);
}else{
AlertDialog.Builder builder = new AlertDialog.Builder(RegisterActivity.this);
builder.setMessage("Register Failed")
.setNegativeButton("Retry", null)
.create()
.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
};
RegisterRequest registerRequest = new RegisterRequest(name, username, age, password,responseListener );
RequestQueue queue = Volley.newRequestQueue(RegisterActivity.this);
queue.add(registerRequest);
}
});
}
}
注册请求：
package com.ben.owner.say_something;
import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;
import java.util.HashMap;
import java.util.Map;
/**
* Created by owner on 08/03/2017.
*/
public class RegisterRequest extends StringRequest {
private static final String REGISTER_REQUEST_URL = "https://saysomething.000webhostapp.com/register.php";
private Map<String, String>params;
public RegisterRequest(String name, String username, int age, String password, Response.Listener<String> listener){
super(Method.POST, REGISTER_REQUEST_URL, listener, null);
params = new HashMap<>();
params.put("name", name);
params.put("username", username);
params.put("password", password);
params.put("age", age + "");
}
@Override
public Map<String, String> getParams() {
return params;
}
}
请帮助我理解我做错了什么，PHP不是我强有力的一面。