package util;import java.sql.Connection;import java.sql.DriverManager;public class ConnDB { public static String driver="com.microsoft.jdbc.sqlserver.SQLServerDriver"; public static String url="jdbc:microsoft:sqlserver://localhost:1433;databaseName=temp"; public static String username="sa"; public static String password=""; public static Connection con=null; public static Connection getConnection() { try {  Class.forName(driver);  con=DriverManager.getConnection(url,username,password);  System.err.println("鏈接成功"); } catch (Exception e) {  e.printStackTrace(); } return con; } public static void main(String[] args) { ConnDB.getConnection(); }}