数据未从 android 应用程序保存到 localhost 数据库

Posted 2023-02-25

【中文标题】数据未从 android 应用程序保存到 localhost 数据库

【英文标题】：Data not saving from android app to localhost database

【发布时间】：2015-06-07 18:24:16

【问题描述】：

我在 Eclipse Juno 上创建了一个 android 移动应用程序，我正在尝试将信息从我的移动应用程序输入到我的数据库中，该数据库位于 php my Admin 上。该数据库通过位于 bitnami 的 localhost wamp 服务器连接。

当我在应用程序上输入数据时，它表示已成功输入，但是当我进入数据库时​​，没有存储任何数据。我想知道是否有人可以指出我做错了什么。

我的应用中的代码是：

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import com.example.independentretailers.R;
import android.annotation.SuppressLint; 
import android.app.Activity; 
import android.os.Bundle; 
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class customersignup extends Activity 

EditText etFirstName, etSurname, etPhoneNumber, etEmail, etPassword;
Button bSave;
@SuppressLint("NewApi")
@Override
protected void onCreate (Bundle savedInstanceState)
    super.onCreate(savedInstanceState);
    //setup strict mode policy 
    StrictMode.ThreadPolicy policy = new    StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
    setContentView(R.layout.customersignup);
    //for firstname
    etFirstName = (EditText) findViewById(R.id.editText1);
    //for surname 
    etSurname = (EditText) findViewById(R.id.editText2);
    //for phone number
    etPhoneNumber = (EditText) findViewById(R.id.editText3);
    //for email 
    etEmail = (EditText) findViewById(R.id.editText4); 
    //for password
    etPassword = (EditText) findViewById(R.id.editText5);
    //setting up ID for the button 
    bSave = (Button) findViewById(R.id.button1);
    //setting up onclick listener 
    bSave.setOnClickListener(new View.OnClickListener()

        InputStream is = null;
        @Override 
        public void onClick(View arg0)
            //storing values inside edit texts inside strings 
            String FirstName = ""+etFirstName.getText().toString();
            String Surname = ""+etSurname.getText().toString(); 
            String PhoneNumber = ""+etPhoneNumber.getText().toString();
            String Email = ""+etEmail.getText().toString();
            String Password = ""+etPassword.getText().toString(); 

            //setting name pair values 
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
            //adding string values inside the name value pairs 
            nameValuePairs.add(new BasicNameValuePair("First Name",   FirstName));
            nameValuePairs.add(new BasicNameValuePair("Surname", Surname));
            nameValuePairs.add(new BasicNameValuePair("Phone Number",   PhoneNumber));
            nameValuePairs.add(new BasicNameValuePair("Email", Email));
            nameValuePairs.add(new BasicNameValuePair("Password",    Password));

            //setting up the connection inside the try catch 

            try 
                //setting up the default client

            HttpClient httpClient = new DefaultHttpClient();

            HttpPost httpPost = new    HttpPost("http://10.0.2.2/tutorial.php");
            //passing the name value pair inside the httppost 

        httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

        HttpResponse response = httpClient.execute(httpPost);
        //setting up the entity 
        HttpEntity entity = response.getEntity();

        //define input stream reader 
        is = entity.getContent(); 

        //displaying message for data entered successfully 
        String msg = "Data entered successfully";
        Toast.makeText(getApplicationContext(), msg,     Toast.LENGTH_LONG).show();
            
            catch (ClientProtocolException e)
            
                Log.e("ClientProtocol", "Log_tag");
                e.printStackTrace(); 
             catch (IOException e) 
             
                Log.e("Log_tag", "IOException");
                e.printStackTrace();
            

        

    );

我的 PHP 文本文件是：

$con=mysql_connect('localhost', 'root', 'pancakes');
mysql_select_db("independentretailers",$con); 

$FirstName=$_POST['First Name']; 
$Surname=$_POST['Surname'];
$PhoneNumber=$_POST['Phone Number'];
$Email=$_POST['Email'];
$Password=$_POST['Password'];

 mysql_query("insert into customer(First Name, Surname, Phone Number, Email,   Password)    values('$FirstName','$Surname','$PhoneNumber','$Email','$Password')");

//mysql_close();
?> 

【参考方案1】：

您正在打印响应。你只是在烤你创建的味精。 更新： 您正在 ui 线程上运行与网络相关的操作。您将收到 NetworkOnMainThreadException 后蜂窝。

使用线程或Asynctask。

检查这个question的答案。

【讨论】：

我在网上找到了本教程，用于从 android 应用程序将数据添加到数据库中，他们以与我相同的方式完成了操作，并且他们的数据已保存，我错过了什么吗？教程是：youtube.com/watch?v=MdyZKewSwFg

你的本地主机有密码吗？

是的，是这个问题吗？