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| public class MainActivity extends AppCompatActivity {
private static final String url = "jdbc:mysql://192.168.1.155:3306/***"; //*** = DB.
private static final String user = "***";
private static final String pass = "***";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
testDB();
}
public void testDB() {
TextView tv = (TextView)this.findViewById(R.id.text_view);
try {
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection(url, user, pass);
/* System.out.println("Database connection success"); */
String result = "Database connection success\n";
Statement st = con.createStatement();
ResultSet rs = st.executeQuery("select * from personne");
ResultSetMetaData rsmd = rs.getMetaData();
while(rs.next()) {
result += rsmd.getColumnName(1) + ": " + rs.getInt(1) + "\n";
result += rsmd.getColumnName(2) + ": " + rs.getString(2) + "\n";
result += rsmd.getColumnName(3) + ": " + rs.getString(3) + "\n";
}
tv.setText(result);
}
catch(Exception e) {
e.printStackTrace();
tv.setText(e.toString());
}
}
} |
