我已经按照本教程制作了一个登录/注册应用程序: https://www.youtube.com/watch?v=QxffHgiJ64M&list=PLe60o7ed8E-TztoF2K3y4VdDgT6APZ0ka
一切正常,但后来我删除了“age”参数并插入了“lastname”和“email”参数。因此,每次我尝试注册用户时,“电子邮件”字段的值为“0”(即使我不使用 @ 或 .)
那是我的 Register.php 文件:
<?php
require("Password.php");
$connect = mysqli_connect("x", "x", "x", "x");
$name = $_POST["name"];
$lastname = $_POST["lastname"];
$email = $_POST["email"];
$password = $_POST["password"];
function registerUser() {
global $connect, $name, $lastname, $email, $password;
$passwordHash = password_hash($password, PASSWORD_DEFAULT);
$statement = mysqli_prepare($connect, "INSERT INTO user (name, lastname, email, password) VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($statement, "ssis", $name, $lastname, $email, $passwordHash);
mysqli_stmt_execute($statement);
mysqli_stmt_close($statement);
}
function emailAvailable() {
global $connect, $email;
$statement = mysqli_prepare($connect, "SELECT * FROM user WHERE email= ?");
mysqli_stmt_bind_param($statement, "s", $email);
mysqli_stmt_execute($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 (emailAvailable()){
registerUser();
$response["success"] = true;
}
echo json_encode($response);
?>
这是我的 RegisterActivity.java 文件:
package com.example.gustavo.loginregister;
import android.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.content.Intent;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;
import org.json.JSONException;
import org.json.JSONObject;
public class RegisterActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
final EditText edtNome = (EditText) findViewById(R.id.edtNome);
final EditText edtSobrenome = (EditText) findViewById(R.id.edtSobrenome);
final EditText edtEmail = (EditText) findViewById(R.id.edtEmail);
final EditText edtSenha = (EditText) findViewById(R.id.edtSenha);
final Button btnRegistrar = (Button) findViewById(R.id.btnRegistrar);
btnRegistrar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String name = edtNome.getText().toString();
final String lastname = edtSobrenome.getText().toString();
final String email = edtEmail.getText().toString();
final String password = edtSenha.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, lastname, email, password, responseListener);
RequestQueue queue = Volley.newRequestQueue(RegisterActivity.this);
queue.add(registerRequest);
}
});
}
}
那个是我的 RegisterRequest.java 文件:
package com.example.gustavo.loginregister;
import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;
import java.util.HashMap;
import java.util.Map;
public class RegisterRequest extends StringRequest {
private static final String REGISTER_REQUEST_URL="https://wavecheckapp.000webhostapp.com/Register.php";
private Map<String, String> params;
public RegisterRequest(String name, String lastname, String email, String password, Response.Listener<String> listener){
super(Method.POST, REGISTER_REQUEST_URL, listener, null);
params = new HashMap<String, String>();
params.put("name", name);
params.put("lastname", lastname);
params.put("email", email);
params.put("password", password);
}
@Override
public Map<String, String> getParams() {
return params;
}
}
我做错了什么?我已经检查了很多次...没有 INT 参数,一切都是 STRING。数据库在 utf8_unicode_ci 上。名字、姓氏和密码都被完美地存储着。数据库中参数为VARCHAR类型。
最佳答案
一个简单的错误,您将 mysqli_stmt_bind_param
中的电子邮件地址字段与 i
而不是 s
混淆了。
改变,
mysqli_stmt_bind_param($statement, "ssis", $name, $lastname, $email, $passwordHash);
为了,
mysqli_stmt_bind_param($statement, "ssss", $name, $lastname, $email, $passwordHash);
我不确定 mysqli
如何将参数转换为您提供的类型,但是当您运行以下代码时,输出为 0
:
<?php
echo (int) 'test@test.com'; ---> 0
?>
关于javascript - 我尝试存储在数据库中的任何内容都输入值 '0',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46156258/