大神，帮我看看，为什么我可以加载驱动，却一直连接不上！！包也导入了，到底是什么问题

Question

package Affairs;import java.sql.*;public class StudentsDbDrivers { public static Connection getConnection() {  Connection conn = null;  try {      Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");      conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/Education affair","sa","");   if (conn != null) {    System.out.println("连接成功");   }  } catch (ClassNotFoundException e) {   System.out.println("驱动器加载失败！！");  } catch (SQLException e) {   System.out.println("驱动连接失败");  }  return conn; } public static void closeConnection(Connection conn) {  if (conn != null) {   try {    conn.close();    System.out.println("关闭连接成功");   } catch (SQLException e) {    System.out.println("关闭失败");   }  } } public static void main(String[] args) {  Connection conn = getConnection();  closeConnection(conn); }}