在程序中更改persistence.xml中的值

本文介绍了在程序中更改persistence.xml中的值的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

是否可以从使用它的程序中更改persistence.xml中的值?如果是的话，我将不胜感激一些提示或/和阅读链接.

Is it possible to change values in persistence.xml from within the program that is using it ? If yes, i would appreciate some hints or/and links to read.

推荐答案

是

// connect to database log.info("Connecting to database @ " + dbUrl + " using " + dbUser + "/" + dbPass); emf = Persistence.createEntityManagerFactory("manager", Maps.create( "javax.persistence.jdbc.user", dbUser, "javax.persistence.jdbc.password", dbPass, "javax.persistence.jdbc.url", dbUrl ));