当前位置 博文首页 > 弈凌：java10运行springboot项目出现：Type javax.xml.bind.JAXB
原因：java9模块化的概念使得JAXB默认没有加载；
jaxb-api是存在jdk中的，只是默认没有加载而已，手动引入即可。
推荐方式：（作者采用的此方式）
<!-- jaxb模块引用 - start -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
<!-- jaxb模块引用 - end -->
java9模块命令方式：
--add-modles java.xml.bind
java9默认未加载模块：
javax.activation
javax.corba
javax.transaction
javax.xml.bind
javax.xml.ws
javax.xml.ws.annotation
推荐大家升级到JDK11，此为LTS版本（Oracle长期支持版本），BUG更少、兼容性更强
升级到SpringBoot2.3后，spring-security-oauth2引入上述介绍的4个依赖将会报错如下错误：
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.oauth2.provider.error.OAuth2AccessDeniedHandler]: Factory method 'oAuth2AccessDeniedHandler' threw exception; nested exception is java.lang.NoClassDefFoundError: com/sun/xml/bind/Util
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
... 33 common frames omitted
Caused by: java.lang.NoClassDefFoundError: com/sun/xml/bind/Util
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:113) ~[jaxb-impl-2.3.0.jar:2.3.3]
at com.sun.xml.bind.v2.JAXBContextFactory.createContext(JAXBContextFactory.java:35) ~[jaxb-runtime-2.3.3.jar:2.3.3]
at javax.xml.bind.ContextFinder.find(ContextFinder.java:404) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:721) ~[jaxb-api-2.3.1.jar:2.3.0]
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:662) ~[jaxb-api-2.3.1.jar:2.3.0]
正确依赖如下：
<!-- jaxb模块引用 - start -->
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
</dependency>
<!-- jaxb模块引用 - end -->
