Java 11 包 javax.xml.bind 不存在 [英] Java 11 package javax.xml.bind does not exist
问题描述
我正在尝试使用 JAXB,验证未编组的 XML 数据:
I'm trying to deserialize XML data into a Java content tree using JAXB, validating the XML data as it is unmarshalled:
try {
JAXBContext context = JAXBContext.newInstance("com.acme.foo");
Unmarshaller unmarshaller = context.createUnmarshaller();
unmarshaller.setSchema(schema);
FooObject fooObj = (FooObject) unmarshaller.unmarshal(new File("foo.xml"));
} catch (UnmarshalException ex) {
ex.printStackTrace();
} catch (JAXBException ex) {
ex.printStackTrace();
}
当我使用 Java 8 构建项目时没问题,但是使用 Java 11 构建它失败并出现编译错误:
When I build the project with Java 8 it's fine, but building it with Java 11 fails with a compilation error:
package javax.xml.bind does not exist
我该如何解决这个问题?
How do I fix the issue?
推荐答案
根据release-notes,Java 11 删除了 Java EE 模块:
According to the release-notes, Java 11 removed the Java EE modules:
java.xml.bind (JAXB) - REMOVED
- Java 8 - 好的
- Java 9 - 已弃用
- Java 10 - 已弃用
- Java 11 -已移除
有关详细信息,请参阅 JEP 320.
See JEP 320 for more info.
您可以使用 Java EE 技术的替代版本来解决该问题.只需添加包含您需要的类的 Maven 依赖项:
You can fix the issue by using alternate versions of the Java EE technologies. Simply add Maven dependencies that contain the classes you need:
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.0</version>
</dependency>
Jakarta EE 8 更新(2020 年 3 月)
您可以使用 Jakarta XML 绑定 来自 Jakarta EE 8:
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>2.3.3</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.3</version>
<scope>runtime</scope>
</dependency>
Jakarta EE 9 更新(2020 年 11 月)
使用最新版本的 Jakarta XML Binding 3.0:
- 雅加达 EE9 API jakarta.xml.bind-api
- 兼容实现 jaxb-impl
<dependency>
<groupId>jakarta.xml.bind</groupId>
<artifactId>jakarta.xml.bind-api</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>3.0.0</version>
<scope>runtime</scope>
</dependency>
注意: Jakarta EE 9 采用新的 API 包命名空间 jakarta.xml.bind.*
,因此更新 import 语句:
Note: Jakarta EE 9 adopts new API package namespace jakarta.xml.bind.*
, so update import statements:
javax.xml.bind -> jakarta.xml.bind
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