如何将Android应用程序连接到MySql

Question

I am making an application on Android that will record stats from a sports game, I want to store the information obtained from the app to a MySql database. Can someone point me in the right direction please

Answer 1

you just need to use any of network libraries like ( Volley , Retrofit , OkHttp ... etc ) if you use Volley Library you just need to install XAMPP and use phpMyAdmin to create your Database then learn mysql PHP using request methods like GET , POST then in Volley library in android just call ( Hashmap ) method to send data from android to mysql ... this picture will understand you what i meaning

Answer 2

On the app side you need network libraries that will send a request to the server to save/fetch the data from the server. These can be Retrofit/Volley/OkHttp etc. These network libraries will use an API (URL) to send or retrieve the data from the server.

On the back end side, you will need a web service to connect the SQL database and the app. The web service will provide an API (URL) that will be used by the App to send/retrieve the data. The web service can be made using PHP.

Of course you will need a server to host the web service files or locally you can try WAMP/XAMP etc. software to host and test the APIs but the mobile device and WAMP/XAMP server (ie computer/laptop) should be on the same network.

Answer 3

You will need to first initiate your sqlite database in its own class and then call it within your activity you want to store the results in eg

database class:

public class MyDB extends SQLiteOpenHelper {
//creates desired fields for app in db
public static final String DB_NAME = "mySQLiteDatabase";
public static final String TABLE_NAME = "results";
public static final String COLUMN_ID = "id";
//place your fields here e.g. result 1 

 public static final int DB_VERSION = 1;//version of database

public MyDB(Context context) {
    super(context, DB_NAME, null, DB_VERSION);
}

@Override
public void onCreate(SQLiteDatabase sqLiteDatabase) {
    String sql = "CREATE TABLE " + TABLE_NAME + " (" +
            COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " // add the fields 
created here 
    sqLiteDatabase.execSQL(sql);

}

@Override
public void onUpgrade(SQLiteDatabase sqLiteDatabase, int oldVersion, int newVersion) {
    String sql = "DROP TABLE IF EXISTS " + TABLE_NAME;
    sqLiteDatabase.execSQL(sql);
    onCreate(sqLiteDatabase);

}  public boolean addResult(String result1, //etc 
   SQLiteDatabase sqLiteDatabase = this.getWritableDatabase();

    ContentValues contentValues = new ContentValues();
    contentValues.put(//your column name, //your field );
    //other fields here e.g. result2 etc
       return sqLiteDatabase.insert(TABLE_NAME, null, contentValues) != -1;

}

after initialising something along the lines of this you can then use the addResult method in your main class