Java 如何在persistence.xml 中指定JPA 2.1？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/21142168/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to specify JPA 2.1 in persistence.xml?
提问by kmansoor
A quick search on the Net reveals three or four variants how folks have been specifying xmlnsand xsi:schemaLocationin persistence.xml.
在网络上快速搜索会发现三四个变体，人们是如何指定xmlns和xsi:schemaLocation在persistence.xml.
What would be the 'correct' manner to specify JPA version 2.1?
指定 JPA 2.1 版的“正确”方式是什么？
I'm using
我正在使用
<persistence version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
采纳答案by Andrei I
According to the official documentationit must be (like yours):
根据官方文档，它必须是（像你的一样）：
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
version="2.1">
...
</persistence>
