java.lang.ClassNotFoundException：Eclipse中的com.mysql.jdbc.Driver
代码有什么问题，调试时有很多错误。我正在为单例类编写代码以与数据库mysql连接。 这是我的代码 package com.glomindz.mercuri.util; import java.sql.Connection; import java.sql.Driver; import java.sql.DriverManager; import java.sql.SQLException; public class MySingleTon { String url = "jdbc:mysql://localhost:3306/"; String dbName = "test"; String driver = "com.mysql.jdbc.Driver"; String userName = "root"; String password = ""; private static MySingleTon myObj; private Connection Con ; private MySingleTon() { System.out.println("Hello"); Con= createConnection(); …