如何将Java-config类导入XML-config，以使两个上下文都有bean？ [英] How to import Java-config class into XML-config so that both contexts have beans?

问题描述

我有一个项目，我需要引导@Configuration java-config类到XML配置中。

I have a project where I need to bootstrap @Configuration java-config classes into the XML configuration.

为了做到这一点，我还需要包括以下bean定义（以及用@Configuration注释的类的bean定义）。

To do that, I'm reading that I also need to include the following bean definition (along with the bean definitions of the classes annotated with @Configuration).

<bean class="org.springframework.config.java.process.ConfigurationPostProcessor" />

但是，我最终收到以下错误：

But, I end up receiving the following error:

Caused by: java.lang.ClassNotFoundException: org.springframework.config.java.process.ConfigurationPostProcessor

我必须假设我在某个地方丢失了一个jar，但是我的各种网页搜索没有得到答案。任何帮助将非常感谢。非常感谢。

I have to assume I'm missing a jar somewhere, but my various web searches hasn't resulted in an answer yet. Any help would be greatly appreciated. Thanks.

编辑：显然，我正在阅读旧文档，该文档已不再是最新版本。让我回来。我的项目包含较早的基于XML的配置。较新的代码都使用Java-config。话虽如此，上下文显然是完全分离的。我想'import'一个java-config类到XML配置，所以这两个上下文都有那些特定的bean。有人知道我该怎么做吗？

EDIT: Evidently, I was reading old documentation, which is no longer current. Let me back up. My project contains older XML-based configuration. The newer code is all using 'Java-config'. With that said, the contexts are apparently completely separate. I'd like to 'import' a java-config class into the XML configuration, so that both contexts have those particular beans. Does anyone know how I can do that?

推荐答案

这实际上最后是相当简单。要将Java配置bean定义放到xml-config中，只需将XML配置中的Java-config类定义为bean即可。没有额外的jar需要。

This actually ended up being fairly simple. To get a Java-config bean definition into the xml-config, simply define the Java-config class as a bean within the XML-config. There are no extra jars necessary.

@Configuration
public class SomeJavaConfig {

    @bean
    ... [bean definition]
}

< config，你将这个类定义为一个bean。

inside the XML-config, you define this class as a bean.

<!-- Importing java-config class, which are annotated with @Configuration -->
<bean name="/SomeJavaConfig" class="[fully qualified path].SomeJavaConfig" />

XML配置可能是不同上下文的一部分，现在定义了所有的bean定义在JavaConfig类中。

The XML-config, which may be part of a different context, now has all the bean definitions defined within the JavaConfig class.

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