更新数据
package cn.fly; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; import org.apache.log4j.Logger; /** * 更新数据 * * @author ASUS * */ public class uptate { private static Logger logger = Logger.getLogger(Test1.class.getName()); public static void main(String[] args) { Connection conn = null; Statement stat = null; // 1.加载驱动 try { Class.forName("com.mysql.jdbc.Driver"); } catch (ClassNotFoundException e) { logger.error(e); } // 2.建立连接 try { conn = DriverManager.getConnection( "jdbc:mysql://localhost:3306/epet", "root", "root"); // 更新狗狗信息到数据库 stat = conn.createStatement(); stat.executeUpdate("update dog set health=100,love=100 where id =1"); logger.info("成功更新数据~~~"); } catch (SQLException e) { logger.error(e); } finally { // 3.关闭连接 if (stat != null) { try { stat.close(); } catch (SQLException e) { logger.error(e); } } if (conn != null) { try { conn.close(); } catch (SQLException e) { logger.error(e); } } } } }