springcloud启动eureka报错java.lang.ClassNotFoundException: com.sun.jersey.api.core.DefaultResourceConfig

左手的ㄟ右手 2022-05-28 23:54 444阅读 0赞

最近开始学习spring cloud,因为钱不久使用过spring boot，所以轻松上手。

然后弄清楚我们的消费者 服务者 服务发现者，然后就跟着教程走起来，然后就悲剧的出现如下的一幕

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换了四五个版本的 cloud.version 同样出现问题：

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class \[cloud.eureka.server.EurekaServer\]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.cloud.netflix.eureka.server.EurekaServerConfiguration  
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:519) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:278) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:232) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:199) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:168) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:321) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:678) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:520) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~\[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE\]  
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) \[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE\]  
at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) \[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE\]  
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) \[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE\]  
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) \[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE\]  
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) \[spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE\]  
at cloud.eureka.server.EurekaServer.main(EurekaServer.java:16) \[classes/:na\]  
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.cloud.netflix.eureka.server.EurekaServerConfiguration  
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163) ~\[spring-core-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:292) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:232) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:510) ~\[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
... 17 common frames omitted  
Caused by: java.lang.NoClassDefFoundError: com/sun/jersey/api/core/DefaultResourceConfig  
at java.lang.Class.getDeclaredMethods0(Native Method) ~\[na:1.8.0\_151\]  
at java.lang.Class.privateGetDeclaredMethods(Unknown Source) ~\[na:1.8.0\_151\]  
at java.lang.Class.getDeclaredMethods(Unknown Source) ~\[na:1.8.0\_151\]  
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152) ~\[spring-core-4.2.6.RELEASE.jar:4.2.6.RELEASE\]  
... 20 common frames omitted  
Caused by: java.lang.ClassNotFoundException: com.sun.jersey.api.core.DefaultResourceConfig  
at java.net.URLClassLoader.findClass(Unknown Source) ~\[na:1.8.0\_151\]  
at java.lang.ClassLoader.loadClass(Unknown Source) ~\[na:1.8.0\_151\]  
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~\[na:1.8.0\_151\]

at java.lang.ClassLoader.loadClass(Unknown Source) ~\[na:1.8.0\_151\]

理论上我还是认为maven搞的好好的，不会出现这样的错误，但是最终还是没办法，找不到类就是找不到类

就直接上网找这个：com.sun.jersey.api.core.DefaultResourceConfig

然后塞进maven里面，也可以先下载jar放进去试试

远程地址如下：

http://grepcode.com/snapshot/repo1.maven.org/maven2/com.sun.jersey/jersey-bundle/1.19/

我使用的jersey 1.19.1 所以我找的1.19 然后就ok 了，大家自己看下自己的jersey版本，自动添加

下面是maven代码：

<dependency>  
        <groupId>com.sun.jersey</groupId>  
       <artifactId>jersey-bundle</artifactId>  
         <version>1.19</version>  
     </dependency>

搞定，启动妥妥的，eureka成功启动.

这是今天新加的，使用spring cloud并用maven打包独立运行时出现异常，始终无法处理，没办法最终又回到了  
java.lang.ClassNotFoundException: com.sun.jersey.api.core.DefaultResourceConfig  
这一次到墙外面逛了一圈，还是老外经验足：  
url: https://github.com/spring-projects/spring-boot/issues/1345  
pom.xml 添加如下代码  
                <plugin>  
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-maven-plugin</artifactId>  
    <configuration>  
        <requiresUnpack>  
                <dependency>  
                        <groupId>com.sun.jersey</groupId>  
                        <artifactId>jersey-server</artifactId>  
                </dependency>  
                <dependency>  
                        <groupId>com.sun.jersey</groupId>  
                        <artifactId>jersey-core</artifactId>  
                </dependency>  
                <dependency>  
                        <groupId>com.sun.jersey</groupId>  
                        <artifactId>jersey-servlet</artifactId>  
                </dependency>  
        </requiresUnpack>  
    </configuration>

</plugin>

报错的原因是因为jar出现了冲突：导出的jar也能正常运行，算是把这个坑填好了

[70]: /images/20220529/de2147f7559940869dbf8d32ffee5b16.png