休眠-如何在运行时更改属性 [英] hibernate - how to change properties at runtime

问题描述

我正在尝试更改hibernate.cfg.xml中的属性，但是我的代码无法正常工作。

I am trying to change properties in hibernate.cfg.xml but my code doesn't work.

public static void changeConfiguration(String login, String password){
    Configuration cfg = new Configuration();
    cfg.configure();
    cfg.setProperty("hibernate.connection.password", password);
    cfg.setProperty("hibernate.connection.username", login); 

}

有人知道那为什么不起作用吗？我的文件hibernate.cfg.xml始终看起来相同。

Any idea why thats doesnt work? My file hibernate.cfg.xml always looks the same.

推荐答案

要使其正常运行，您应该构建 sessionFactory 和该 Configuration 对象，然后使用该 sessionFactory 进行会话。

To make it work, you should build your sessionFactory with that Configuration object and then use that sessionFactory to get your session.

类似的东西：

public static SessionFactory changeConfiguration(String login, String password){
    Configuration cfg = new Configuration();
    cfg.configure();
    cfg.setProperty("hibernate.connection.password", password);
    cfg.setProperty("hibernate.connection.username", login); 
    SessionFactory sessionFactory = cfg.buildSessionFactory();
    return sessionFactory;
}

但最后，它不会更改 hibernate.cfg.xml 文件，它会在运行时覆盖或定义属性。如果您不想将用户名和密码放在 hibernate.cfg.xml 文件中，则可能应该使用 .properties 文件。

But at the end, it will not change the hibernate.cfg.xml file, it overwrite or defines properties at runtime. If you don't want to put your username and password in the hibernate.cfg.xml file, you should probably use a .properties file that contain these values.

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