Oracle數據庫到android

Question

android to oracle db: 

public class OracleActivity extends Activity{ 
private Connection con; 
protected void OnCreate(Bundle savedInstanceState){ 
super.onCreate(savedInstanceState); 
try{ 
connector(); 
} 
catch(Exception e){ 
System.out.println("not connected"+e);} 
public void Connector() throws ClassNotFoundException{ 
try{ 
Class.forName("oracle.jdbc.driver.OracleDriver"); 
System.out.println("oracle jdbc driver loaded ok."); 
con=DriverManager.getConnection("jdbc:oracle:thin:karthi/xxxx@198.162.12.11:1521:biodata"); 
system.out.println("connected to biodata@198.162.12.11"); 
con.close(); 
system.out.println("sucessfully connected"); 
} 
catch(SQLException e){ 
System.out.println("not connect oracle db"+e);} 
} 
} 

am also add ojdbc14.jar file and and user-permission: added 
Failed resolving Loracle/jdbc/xa/OracleXAResource; interface 265 'Ljavax/transaction/xa/XAResource;' 

Answer 1

看起來像Oracle ojdbc14.jar不包含接口javax.transaction.xa.XAResource。您還需要添加JTA JAR。你可以找到它here。順便說一下，看起來很糟糕的代碼。不一致的命名和大小寫，醜陋的語法。以下是我如何寫它：

import java.sql.Connection; 
import java.sql.DriverManager; 

public class OracleActivity extends Activity { 
    private static final String DEFAULT_DRIVER = "oracle.jdbc.driver.OracleDriver"; 
    private static final String DEFAULT_URL = "jdbc:oracle:thin:karthi/xxxx@198.162.12.11:1521:biodata"; 
    private static final String DEFAULT_USERNAME = "scott"; 
    private static final String DEFAULT_PASSWORD = "tiger"; 

    private Connection connection; 


    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     try { 
      this.connection = createConnection(); 
     } 
     catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 

    public static Connection createConnection(String driver, String url, String username, String password) throws ClassNotFoundException, SQLException { 

     Class.forName(driver); 
     return DriverManager.getConnection(url, username, password); 
    } 

    public static Connection createConnection() ClassNotFoundException, SQLException { 
     return createConnection(DEFAULT_DRIVER, DEFAULT_URL, DEFAULT_USERNAME, DEFAULT_PASSWORD);   
    } 
}