我想从我的Android设备插入数据到phpmyadmin

Question

目前我可以通过邮递员或模拟器添加用户到数据库中，但我需要能够从实际的Android设备插入数据。我必须采取什么调整？请看看下面

代码这是我在应用程序中使用我的主要活动：

package ie.example.artur.adminapp; 

import android.os.AsyncTask; 
import android.os.Bundle; 
import android.support.design.widget.FloatingActionButton; 
import android.support.design.widget.Snackbar; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 
import android.view.View; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 

import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.Statement; 
import java.util.HashMap; 

import retrofit2.Call; 
import retrofit2.Callback; 
import retrofit2.Response; 

public class MainActivity extends AppCompatActivity { 


    EditText editTextName,editTextEmail,editTextPassword; 
    TextView textView; 
    private static final String DB_URL = "jdbc:mysql://10.3.2.51/socialmedia_website"; 
    private static final String USER = "zzz"; 
    private static final String PASS = "zzz"; 



    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_register); 
     findViewById(R.id.layoutProgress).setVisibility(View.GONE); 
     textView = (TextView) findViewById(R.id.textView); 
     editTextName = (EditText) findViewById(R.id.editTextName); 
     editTextEmail = (EditText) findViewById(R.id.editTextEmail); 
     editTextPassword = (EditText) findViewById(R.id.editTextPassword); 

     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 

     FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); 
     fab.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) 
         .setAction("Action", null).show(); 
      } 
     }); 
    } 

    public void btnConn(View view) { 

     findViewById(R.id.layoutProgress).setVisibility(View.VISIBLE); 

     final ApiClient apiClient = new ApiClient(); 

     String email = editTextEmail.getText().toString(); 
     String name = editTextName.getText().toString(); 
     String password = editTextPassword.getText().toString(); 

     HashMap<String,String> parameters = new HashMap<>(); 
     parameters.put("email",email); 
     parameters.put("name",name); 
     parameters.put("password",password); 

     Call<ApiResponse> call = apiClient.loginUser(parameters); 
     call.enqueue(new Callback<ApiResponse>() { 
      @Override 
      public void onResponse(Call<ApiResponse> call, Response<ApiResponse> response) { 
       if(response.isSuccessful()) 
       { 
        ApiResponse apiResponse = response.body(); 
        if(apiResponse.getStatus() == 200 || apiResponse.getStatus() == 201) 
        { 
         findViewById(R.id.layoutProgress).setVisibility(View.GONE); 
         Send objSend = new Send(); 
         objSend.execute(""); 

         //Toast.makeText(MainActivity.this,"Success", Toast.LENGTH_SHORT); 
         textView.setText("Success."); 
        } 
        else 
        { 
         //Toast.makeText(MainActivity.this,apiResponse.getErrors(), Toast.LENGTH_SHORT); 
         textView.setText(apiResponse.getErrors()); 
        } 

       } 
       else 
       { 
        findViewById(R.id.layoutProgress).setVisibility(View.GONE); 
        //Toast.makeText(MainActivity.this,"Invalid api response.", Toast.LENGTH_SHORT); 
        textView.setText("Invalid api response."); 
       } 
      } 

      @Override 
      public void onFailure(Call<ApiResponse> call, Throwable t) { 
       findViewById(R.id.layoutProgress).setVisibility(View.GONE); 
       //Toast.makeText(MainActivity.this,"No host available or please check network connectivity.", Toast.LENGTH_SHORT); 
       textView.setText("No host available or please check network connectivity."); 
      } 
     }); 
    } 

    private class Send extends AsyncTask<String, String, String> 

    { 
     String msg = ""; 
     String name = editTextName.getText().toString(); 
     String email = editTextEmail.getText().toString(); 
     String password = editTextPassword.getText().toString(); 

     @Override 
     protected void onPreExecute() { 
      textView.setText("Please Wait Inserting Data"); 
     } 

     @Override 
     protected String doInBackground(String... strings) { 
      try { 
       Class.forName("com.mysql.jdbc.Driver"); 
       Connection conn = DriverManager.getConnection(DB_URL, USER, PASS); 
       if (conn == null) { 
        msg = "Connection goes wrong"; 
       } else { 
        String query = "Insert INTO users (name,email,password) VALUES('" + name+"','"+email+"','"+password+"')"; 
        Statement stmt = conn.createStatement(); 
        stmt.executeUpdate(query); 
        msg = "Inserting Successful!!"; 

       } 

       conn.close(); 

     } 

     catch(
     Exception e 
     ) 

     { 
      msg = "Connection goes Wrong"; 
      e.printStackTrace(); 

     } 

     return msg; 


    } 



@Override 
    protected void onPostExecute(String msg) {textView.setText(msg);} 



    } 




} 

API客户端类

package ie.example.artur.adminapp; 

import java.util.HashMap; 

import okhttp3.OkHttpClient; 
import okhttp3.logging.HttpLoggingInterceptor; 
import retrofit2.Call; 
import retrofit2.Retrofit; 
import retrofit2.converter.gson.GsonConverterFactory; 

/** 
* Created by asifj on 7/25/2017. 
*/ 

public class ApiClient 
{ 
    private String BASE_URL = BuildConfig.BASE_URL; 

    ApiEndPoints apiService; 

    public ApiClient() { 
     HttpLoggingInterceptor logging = new HttpLoggingInterceptor(); 
     OkHttpClient.Builder httpClient = new OkHttpClient.Builder(); 
     logging.setLevel(HttpLoggingInterceptor.Level.BODY); 

     httpClient.addInterceptor(logging); // <-- this is the important line! 
     Retrofit retrofit = new Retrofit.Builder().baseUrl(BASE_URL).addConverterFactory(GsonConverterFactory.create()).client(httpClient.build()).build(); 
     apiService = retrofit.create(ApiEndPoints.class); 
    } 

    public Call<ApiResponse> loginUser(HashMap<String, String> parameters) 
    { 
     return apiService.usercreate(parameters); 
    } 
} 

如果你需要我分享更多的类请在评论中告知我

Answer 1

//这是一个你会打电话给你的班主要活动

public class PostRequest extends AsyncTask<Void, Void, String> { 

    private String parameters; 
    private Context context; 

    public PostRequest(Context context) { 
     this.context = context; 
     Log.d("PostRequest", "Context set : " + context); 
    } 

    public void setParameters(String parameters) { 
     this.parameters = parameters; 
     Log.d("PostRequest", "Parameters set : " + parameters); 
    } 

    @Override 
    protected String doInBackground(Void... params) { 

     String response = null; 

     try { 

      URL url = new URL("url of your php script"); 
      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
      connection.setDoOutput(true); 
      connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); 
      connection.setRequestMethod("POST"); 

      OutputStreamWriter request = new OutputStreamWriter(connection.getOutputStream()); 
      request.write(parameters); 

      request.flush(); 
      request.close(); 
      String line = ""; 
      InputStreamReader isr = new InputStreamReader(connection.getInputStream()); 
      BufferedReader reader = new BufferedReader(isr); 
      StringBuilder sb = new StringBuilder(); 
      while ((line = reader.readLine()) != null) { 
       sb.append(line + "\n"); 
      } 

      response = sb.toString(); 

      isr.close(); 
      reader.close(); 

     } catch (IOException e) { 
      // Error 
     } 

     return response; 
    } 

    @Override 
    protected void onPostExecute(String s) { 
     super.onPostExecute(s); 
    } 
} 

//你的主要活动，你会打电话给它，像这样

PostRequest postRequest = new PostRequest(getContext()); 

postRequest.setParameters("param1=" + "param1value" + "&param2=" + "param2value"); 

postRequest.execute();