写jsp加载数据驱动以后老是提示Only a type can be imported. com.mysql.jdbc.Connection resolves to a package的错误，然而改成java就无报错
出错的原因：没有成功引入包
解决方法：将mysql-connector-java-5.1.39-bin.jar放到tomcat的lib目录下就可以解决
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解决Only a type can be imported. * resolves to a package
解决Only a type can be imported. * resolves to a package
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【已解决】com.mysql.jdbc.exceptions.jdbc4.CommunicationsExcepti：Communications link failure ----mysql连接报错