在程序中更改persistence.xml中的值 [英] Change values in persistence.xml from within the program

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
    ));

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