Question

我正在尝试整合招摇。我按照here给出的步骤。应用程序上下文和pom.xml配置相同。当重启tomcat时出现此错误。

2018-04-30 14:01:33 ERROR ContextLoader:351 - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'productAPIServer': Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/apache/cxf/jaxrs/model/doc/DocumentationProvider
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583)

我已经包含了

 <dependency>
 <groupId>org.apache.cxf</groupId>
 <artifactId>cxf-rt-rs-service-description-swagger</artifactId>
 <version>3.1.7</version>
 </dependency>
 <dependency>
 <groupId>org.apache.cxf</groupId>
 <artifactId>cxf-rt-rs-service-description</artifactId>
 <version>3.1.7</version>
 </dependency>
 <dependency>
 <groupId>org.apache.cxf</groupId>
 <artifactId>cxf-core</artifactId>
 <version>3.1.7</version>
 </dependency>

上下文xml文件中的更改：

<bean id="jacksonJsonProviderFasterxml" class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider" />
<bean id="swagger2Feature"   class="org.apache.cxf.jaxrs.swagger.Swagger2Feature">

<property name="basePath" value="/staticdata-web-service"/>
<property name="license" value=""/>
<property name="licenseUrl" value=""/>
<property name="title" value="Static data web service"/>
</bean>

添加功能

<jaxrs:features>
<ref bean="swagger2Feature" />
</jaxrs:features>

Answer 1

您的版本不匹配。当您在Maven上搜索该类时，您会发现DocumentationProvider的包已从版本3.0.x更改为3.1.x

组织/阿帕奇/ CXF / JAXRS /模型/ DOC / DocumentationProvider

到

组织/阿帕奇/ CXF / JAXRS /模型/ WADL / DocumentationProvider

如果不了解整个构建和程序包依赖关系，很难分辨出不匹配的位置。但你可能想要运行

 mvn dependency:tree -Dverbose

在您的项目文件夹中，查看哪些软件包版本会引发问题，以便提升您的ClassNotFoundException。

Answer 2

在您的 Maven 项目中使用以下依赖项来解决您的问题，

    <!-- https://mvnrepository.com/artifact/org.apache.cxf/cxf-rt-rs-json-basic -->
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-rs-json-basic</artifactId>
        <version>3.4.3</version>
        <scope>provided</scope>
    </dependency>

java.lang.NoClassDefFoundError：org / apache / cxf / jaxrs / model / doc / DocumentationProvider

2 个答案: