JBDC鏈接數據庫
阿新 • • 發佈:2017-11-29
log4 bdc err etc 加載驅動 rgs clas static pan
package cn.fly; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import org.apache.log4j.Logger; /** * java方式連接和關閉數據庫 * * @author ASUS * */ public class Test1 { private static Logger logger = Logger.getLogger(Test1.class.getName()); public staticvoid main(String[] args) { Connection conn = null; // 1.加載驅動 try { Class.forName("com.mysql.jdbc.Driver"); } catch (ClassNotFoundException e) { logger.error(e); } // 2.建立連接 try { conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/epet", "fly", "0000"); System.out.println("建立連接成功~~"); } catch (SQLException e) { logger.error(e); } finally { // 3.關閉連接 if (conn != null) { try { conn.close(); System.out.println("關閉連接成功~~"); } catch (SQLException e) { logger.error(e); } } } } }
JBDC鏈接數據庫