Java web项目发布到服务器上找不到数据库驱动

[碎星]

问题：Java web项目发布到服务器上找不到数据库驱动
控制台信息：

java.sql.SQLException: No suitable driver found for jdbc:mysql://127.0.0.1:3306/course_mange
	at java.sql.DriverManager.getConnection(Unknown Source)
	at java.sql.DriverManager.getConnection(Unknown Source)
	at utils.DBUtil.<clinit>(DBUtil.java:33)
	at actions.LoginTest.login(LoginTest.java:12)
	at controllers.MyServletTest.doPost(MyServletTest.java:43)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)

...
已检查：驱动mysql-connector-java-5.1.39-bin.jar包已放入WEB-INF/lib目录
url拼写无误
本地调试可以正常连接到数据库
数据库版本：MYSQL-5.7.14

[街头小贩]

你使用的jdbc connection?还是jndi?