jaxb-core和jaxb-impl有什么区别？

Question

在什么情况下，我需要在jaxb-impl和jaxb-core之间做出选择？在我的项目中同时使用jaxb-impl和jaxb-core会导致任何类加载冲突？

Answer 1

如果使用Maven Central中的com.sun.xml.bind构件，那么jaxb-core似乎是jaxb-impl、jaxb-xjc和jaxb-jxc的底层(共享)依赖；因此，需要 jaxb-core来使用jaxb-impl。

<!-- jaxb-impl -->
<!-- ... --->
    <!-- ... --->
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-impl</artifactId>

    <packaging>jar</packaging>
    <name>Old JAXB Runtime</name>
    <description>Old JAXB Runtime module. Contains sources required for runtime processing.</description>
    <url>https://eclipse-ee4j.github.io/jaxb-ri/</url>

    <dependencies>

        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-core</artifactId>
        </dependency>
    <!-- ... -->
<!-- ... --->

<!-- jaxb-core -->
<!-- ... --->
    <!-- ... -->
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-core</artifactId>

    <packaging>jar</packaging>
    <name>Old JAXB Core</name>
    <description>Old JAXB Core module. Contains sources required by XJC, JXC and Runtime modules with dependencies.</description>
    <url>https://eclipse-ee4j.github.io/jaxb-ri/</url>
    <!-- ... -->
<!-- ... -->