Found interface com.mysql.jdbc.Connection, but class was expected

Found interface com.mysql.jdbc.Connection, but class was expected (意思就是期望是个类的，但是却发现的是接口)

项目上遇到一个问题，折腾了好久。

google到的结果：

In mysql-connecter-java-5.0 Statement is a class. in 5.1, it's an interface.

The code you write shouldn't care too much. But if you compile against the new version, then run against the old version, you'll have this problem.

我项目中用的是5.1的版本，而在5.1中Connection  和Statement 为接口，而在5.0版本中为class。将jar包替换为mysql-connecter-java-5.0即可

原文地址：http://blog.163.com/xueling1231989@126/blog/static/10264080720151653746560/