Hibernate:Acquisition Attempt Failed Clearing pending acquires.

今天在写hibernate连接数据库时出现了这个问题
Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
简单来说就是程序找不到数据库了。
一般情况下出现这种问题都是hibernate.cfg.xml
1驱动配置错误
2数据库连接（URL）错误
3账号密码错误
4数据库不可用
5数据库驱动包未引入
但是我的问题出现在根本就没将hibernate.cfg.xml引入到程序处理过程中
6程序未引入hibernate.cfg.xml
解决方法：加入以下代码

        Configuration cfg=new Configuration();cfg.configure("hibernate.cfg.xml");

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