How to set JPA Eclipse Link connection timeout?

Question

我正在使用带有eclipse链接的jpa，并且网络连接较差时我的应用程序引发异常，我想增加超时时间或此问题的另一种解决方案

Answer 1

use this in a query

 query.setHint(QueryHints.JDBC_TIMEOUT, x);

Edit: you can set or override javax.persistence.query.timeout by query.setHint("javax.persistence.query.timeout", x); but the hint can be not considered in the case of different databases or different persistence providers