為什么80%的碼農都做不了架構師？>>> ??

//DBUtil.java package vill.util;import java.io.IOException; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; import java.util.Properties;/*** @author vill**/ public class DBUtil {private static String driver;private static String url;private static String user;private static String pwd;//static語句塊初始化字段信息static{try {Properties properties = new Properties();properties.load(DBUtil.class.getClassLoader().getResourceAsStream("vill/util/db.properties"));driver = properties.getProperty("driver");url = properties.getProperty("url");user = properties.getProperty("username");pwd = properties.getProperty("password");} catch (IOException e) {e.printStackTrace();}}/*** 獲取與數據庫的連接* @return* @throws Exception*/public static Connection getConnection() throws Exception{Class.forName(driver);return DriverManager.getConnection(url, user, pwd);}/*** 關閉連接* @param conn* @param stm* @param rs*/public static void closeConnection(Connection conn,Statement stm,ResultSet rs){try {if (conn != null)conn.close();if (stm != null)stm.close();if (rs != null)rs.close();} catch (Exception e) {e.printStackTrace();}}public static void main(String[] args) {try {System.out.println(new DBUtil().getConnection().getClass().getName());;} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}} }//配置文件db.properties ####oracle connection info driver=oracle.jdbc.driver.OracleDriver url=jdbc:oracle:thin:@localhost:1521:vill username=vill password=villvill####mysql connection info #driver=com.mysql.jdbc.Driver #url=jdbc:mysql://localhost:3306/vill #username=root #password=root

轉載于:https://my.oschina.net/vill/blog/151958

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