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环境

JDK 1.8  Eclipse   Mysql

数据库连接类

package com.star.db;
import java.sql.Connection;
import java.sql.DriverManager;
public class MyConn {
	public static Connection getConn() {
		Connection c = null;
		try {
                        //加载驱动
			Class.forName("com.mysql.jdbc.Driver");
			//test为所连接的数据库,root为数据库用户名,abc123为密码
			c = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","abc123");
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return c;
	} 
}

测试链接

		public static void main(String[] args) {
			MyConn mc = new MyConn();
			System.out.println(mc.getConn());
		}

运行结果

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