本文实例讲述了java获得mysql和oracle链接的类。分享给大家供大家参考。具体如下:
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import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; public class ConnectDB { private static final String MYSQL = "jdbc:mysql://" ; private static final String ORACLE = "jdbc:oracle:thin:@" ; private ConnectDB() { } public static Connection getInstance(String DBType, String url) throws NoSuchDBException, SQLException { if ( "mysql" .equalsIgnoreCase(DBType)) return getMySqlConn(url); if ( "oracle" .equalsIgnoreCase(DBType)) return getOracleConn(url); return null ; } public static void closeConn(Connection conn) { if (conn != null ) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } private static Connection getMySqlConn(String url) throws SQLException { Connection conn = null ; try { Class.forName( "com.mysql.jdbc.Driver" ); } catch (ClassNotFoundException e) { e.printStackTrace(); } conn = DriverManager.getConnection(MYSQL + url, "root" , "root" ); return conn; } private static Connection getOracleConn(String url) throws SQLException { Connection conn = null ; try { Class.forName( "oracle.jdbc.driver.OracleDriver" ); } catch (ClassNotFoundException e) { e.printStackTrace(); } conn = DriverManager.getConnection(ORACLE + url, "scott" , "tiger" ); return conn; } } |
希望本文所述对大家的java程序设计有所帮助。