Android Studio連接SQL數據庫

Question

我正在嘗試將 Android 工作室應用程序連接到 SQL 服務器（Heidi SQL）我在 lib 中有 jtds jars（jtds-1.2.7.jar）文件並添加了依賴項。 它仍然沒有讀取數據並顯示數據庫的結果，我有這個錯誤：

E/Error:.net.sourceforge.jtds.jdbc.Driver enter image description here

這些是我的代碼。

公共 class ConnectionHelper {

 Connection con; String uname, pass, ip, port, database; @SuppressLint("NewApi") public Connection connectionClass() { ip = "127.0.0.1"; database = "eat"; uname = "root"; pass = "pass"; StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy); Connection connection = null; String ConnectionURL = null; try{ Class.forName(.net.sourceforge.jtds.jdbc.Driver"); ConnectionURL = "jdbc:jtds:mysqlserver://" + ip + "/" + database + ";user=" + uname + ";password=" + pass +";"; connection = DriverManager.getConnection(ConnectionURL); } catch (Exception ex){ Log.e("Error", ex.getMessage()); } return connection; } }

Answer 1

The problem is IP address 127.0.0.1 is the default IP address of the localhost of the device, You need to change it with IP address of the device running the Apache Server

Answer 2

看起來您使用端口 54015 被拒絕。這是 SQL 服務器正在偵聽 JDBC 連接的端口嗎？ 如果沒有，您可能需要 append 端口號到 ConnectionClass.ip 即 127.0.0.1:[端口號在這里] aka 127.0.0.1:12345