JAXBContext、jaxb.properties 和 moxy [英] JAXBContext, jaxb.properties and moxy

问题描述

jaxb.properties 需要与您正在创建 JAXBContext 的域类位于同一包中.

我正在使用 Moxy 的 xml 驱动配置，因为我不想使用注释或 XJC 生成的对象.我有一个现有的域类，它们分布在多个包中.这是否意味着我需要在所有这些包中都存在 jaxb.properties 或者有更好的选择(也许编写我自己的一些可以从 jvm arg 或其他东西读取的接口的实现)?

解决方案

这是否意味着我需要所有的 jaxb.properties那些包?

如果您在类上创建 JAXBContext，那么您需要在传入的域类的至少一个包中包含一个 jaxb.properties 文件.在下面的示例中，您可以在 package1 或 package2 中有一个 jaxb.properties 文件.

JAXBContext jc = JAXBContext.newInstance(package1.Foo.class, package2.Bar.class);

如果您要在包名称上创建 JAXBContext，那么您至少需要在其中一个包中包含 jaxb.properties 文件.请注意，包由:"分隔.

JAXBContext jc = JAXBContext.newInstance("package1:package2");

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或者有更好的选择

我的偏好是使用带有 jaxb.properties 文件的标准 JAXB API 来将 MOXy 指定为 JAXB 提供程序.有些人更喜欢使用本机 MOXy API 来执行此操作:

JAXBContext jc = org.eclipse.persistence.jaxb.JAXBContextFactory.createContext(new Class[] {Foo.class, Bar.class}, null);

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更多信息

• http://blog.bdoughan.com/2011/05/specifying-eclipselink-moxy-as-your.html

The jaxb.properties needs to be in the same package as the domain classes you are creating the JAXBContext on.

I am using Moxy's xml driven configuration since I doesn't want to use annotations or XJC generated objects. I have an existing domain classes that are spread across multiple packages. Does this mean that i need to have the jaxb.properties present in all those packages or there is a better alternative (Maybe writing my own implementation of some interface that can read from a jvm arg or something)?

解决方案

Does this mean that i need to have the jaxb.properties present in all those packages?

If you are creating your JAXBContext on classes, then you need to have a jaxb.properties file in at least one of the packages of the domain classes passed in. In the example below you could have a jaxb.properties file in either package1 or package2.

JAXBContext jc = JAXBContext.newInstance(package1.Foo.class, package2.Bar.class);

If you are creating your JAXBContext on package names, then you need to have a jaxb.properties files in at least one of the packages. Note that packages are separated by a ':'.

JAXBContext jc = JAXBContext.newInstance("package1:package2");

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or there is a better alternative

My preference is to use the standard JAXB APIs with a jaxb.properties file to specify MOXy as the JAXB provider. Some people prefer using the native MOXy APIs to do this:

JAXBContext jc = org.eclipse.persistence.jaxb.JAXBContextFactory.createContext(new Class[] {Foo.class, Bar.class}, null);

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For More Information

• http://blog.bdoughan.com/2011/05/specifying-eclipselink-moxy-as-your.html

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