Swagger2与Spring Boot版本冲突

Swagger2与Spring Boot版本冲突

问题描述：

老师您好，我这边一直报初始化错误

https://img1.sycdn.imooc.com//climg/624e6b83093b51bf18720313.jpg

查了一下发现是swagger和2.6版本的spring boot有问题，我把所有的swagger依赖以及注解删去就解决了。但是不知道怎么才能让这两个一起存在？

尝试过的解决方式：

我也尝试过使用这个2.1.12.RELEASE版本的spring boot以及Greenwich5的cloud，但是好像老版本一直有问题，可能是因为默认引入的spring-aop test web以及core都是5.1.13.RELEASE版本的，反正要不版本各种冲突，要不就是有些老版本找不到无法下载。

现在能正常运行的版本是2.6.3的spring boot和2021.0.1的cloud

一旦使用2.1.12.RELEASE版本的spring boot以及Greenwich5的cloud， eurekaserver模块报错如下

java.lang.IllegalStateException: Error processing condition on org.springframework.cloud.client.CommonsClientAutoConfiguration$DiscoveryLoadBalancerConfiguration.discoveryCompositeHealthContributor
	at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:60) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:181) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:141) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:327) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:232) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:705) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at com.imooc.cloud.mall.practice.eureka.EurekaServerApplication.main(EurekaServerApplication.java:16) [classes/:na]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.client.CommonsClientAutoConfiguration$DiscoveryLoadBalancerConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:507) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:404) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:389) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:447) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_162]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:737) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:678) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:647) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1518) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1023) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:189) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:156) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanType(BeanTypeRegistry.java:149) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:137) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_162]
	at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:132) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:96) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:269) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:262) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:251) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:171) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:117) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	... 17 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/actuate/health/CompositeHealthContributor
	at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_162]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_162]
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_162]
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_162]
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[na:1.8.0_162]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[na:1.8.0_162]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[na:1.8.0_162]
	at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_162]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_162]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_162]
	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_162]
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_162]
	at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_162]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:489) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	... 39 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.actuate.health.CompositeHealthContributor
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_162]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_162]
	... 55 common frames omitted

2022-04-07 12:49:11.624  WARN 51100 --- [           main] o.s.boot.SpringApplication               : Unable to close ApplicationContext

java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.client.CommonsClientAutoConfiguration$DiscoveryLoadBalancerConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:507) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:404) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:389) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:447) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_162]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:737) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:678) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:647) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1518) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:513) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:483) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:604) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:596) ~[spring-beans-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1226) ~[spring-context-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:866) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:854) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:841) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:792) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
	at com.imooc.cloud.mall.practice.eureka.EurekaServerApplication.main(EurekaServerApplication.java:16) [classes/:na]
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/actuate/health/CompositeHealthContributor
	at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_162]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_162]
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_162]
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_162]
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[na:1.8.0_162]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[na:1.8.0_162]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[na:1.8.0_162]
	at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_162]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_162]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_162]
	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_162]
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_162]
	at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_162]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:489) ~[spring-core-5.1.13.RELEASE.jar:5.1.13.RELEASE]
	... 21 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.actuate.health.CompositeHealthContributor
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_162]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_162]
	... 37 common frames omitted

与目标 VM 断开连接, 地址为: ''127.0.0.1:53548'，传输: '套接字''

进程已结束,退出代码1

使用2.6.3的spring boot和2021.0.1的cloud并开启swagger2 user模块报错如下：

org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:181) ~[spring-context-5.3.15.jar:5.3.15]
	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.15.jar:5.3.15]
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.15.jar:5.3.15]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_162]
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.15.jar:5.3.15]
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.15.jar:5.3.15]
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.15.jar:5.3.15]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.15.jar:5.3.15]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.3.jar:2.6.3]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732) [spring-boot-2.6.3.jar:2.6.3]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:414) [spring-boot-2.6.3.jar:2.6.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) [spring-boot-2.6.3.jar:2.6.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.6.3.jar:2.6.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.6.3.jar:2.6.3]
	at com.imooc.cloud.mall.practice.user.UserApplication.main(UserApplication.java:16) [classes/:na]
Caused by: java.lang.NullPointerException: null
	at springfox.documentation.spi.service.contexts.Orderings$8.compare(Orderings.java:112) ~[springfox-spi-2.9.2.jar:null]
	at springfox.documentation.spi.service.contexts.Orderings$8.compare(Orderings.java:109) ~[springfox-spi-2.9.2.jar:null]
	at com.google.common.collect.ComparatorOrdering.compare(ComparatorOrdering.java:37) ~[guava-20.0.jar:na]
	at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) ~[na:1.8.0_162]
	at java.util.TimSort.sort(TimSort.java:220) ~[na:1.8.0_162]
	at java.util.Arrays.sort(Arrays.java:1438) ~[na:1.8.0_162]
	at com.google.common.collect.Ordering.sortedCopy(Ordering.java:855) ~[guava-20.0.jar:na]
	at springfox.documentation.spring.web.plugins.WebMvcRequestHandlerProvider.requestHandlers(WebMvcRequestHandlerProvider.java:57) ~[springfox-spring-web-2.9.2.jar:null]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper$2.apply(DocumentationPluginsBootstrapper.java:138) ~[springfox-spring-web-2.9.2.jar:null]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper$2.apply(DocumentationPluginsBootstrapper.java:135) ~[springfox-spring-web-2.9.2.jar:null]
	at com.google.common.collect.Iterators$7.transform(Iterators.java:750) ~[guava-20.0.jar:na]
	at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:47) ~[guava-20.0.jar:na]
	at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:47) ~[guava-20.0.jar:na]
	at com.google.common.collect.MultitransformedIterator.hasNext(MultitransformedIterator.java:52) ~[guava-20.0.jar:na]
	at com.google.common.collect.MultitransformedIterator.hasNext(MultitransformedIterator.java:50) ~[guava-20.0.jar:na]
	at com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:249) ~[guava-20.0.jar:na]
	at com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:209) ~[guava-20.0.jar:na]
	at com.google.common.collect.FluentIterable.toList(FluentIterable.java:614) ~[guava-20.0.jar:na]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.defaultContextBuilder(DocumentationPluginsBootstrapper.java:111) ~[springfox-spring-web-2.9.2.jar:null]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.buildContext(DocumentationPluginsBootstrapper.java:96) ~[springfox-spring-web-2.9.2.jar:null]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:167) ~[springfox-spring-web-2.9.2.jar:null]
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.15.jar:5.3.15]
	... 14 common frames omitted

与目标 VM 断开连接, 地址为: ''127.0.0.1:53730'，传输: '套接字''

进程已结束,退出代码1

只有不开启swagger2才能两个模块都执行


相关代码：

cloud-maoo-practice依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <!--最外层父级模块cloud-mall-practice-->
    <!--Spring Boot版本使用2.6.3-->
    <!--Spring Cloud版本使用2021.0.1-->
    <groupId>com.imooc</groupId>
    <artifactId>cloud-mall-practice</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <!--子模块-->
    <modules>
        <module>cloud-mall-eureka-server</module>
        <module>cloud-mall-user</module>
        <module>cloud-mall-common</module>
    </modules>
    <!--整个项目基于Spring Cloud 所以父级依赖为spring boot-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.3</version>
        <relativePath/>
    </parent>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
<!--        使用本地仓库-->
<!--    <repositories>-->
<!--        <repository>-->
<!--            <id>aliyun</id>-->
<!--            <name>aliyun</name>-->
<!--            <url>https://maven.aliyun.com/repository/central</url>-->
<!--        </repository>-->
<!--    </repositories>-->

    <!--添加依赖-->
    <dependencies>
        <!--Spring Boot依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <!--Spring Boot Test-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--Spring Boot Web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--Swagger2依赖-->
<!--        <dependency>-->
<!--            <groupId>io.springfox</groupId>-->
<!--            <artifactId>springfox-swagger2</artifactId>-->
<!--            <version>2.9.2</version>-->
<!--        </dependency>-->
        <!--Swagger2 UI界面的依赖-->
<!--        <dependency>-->
<!--            <groupId>io.springfox</groupId>-->
<!--            <artifactId>springfox-swagger-ui</artifactId>-->
<!--            <version>2.9.2</version>-->
<!--        </dependency>-->
    </dependencies>

    <!--标识Spring Cloud版本-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>2021.0.1</version>
                <!--Spring Cloud在import时生效-->
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <!--Spring Cloud使用的插件-->
    <build>
        <plugins>
            <!--Spring Boot和Maven结合必要的插件-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.6.3</version>
            </plugin>
            <!--mybatis generator插件 自动生成mapper和pojo-->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.7</version>
            </plugin>
        </plugins>
    </build>
</project>

cloud-mall-user依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>cloud-mall-practice</artifactId>
        <groupId>com.imooc</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <!--User模块基本信息-->
    <artifactId>cloud-mall-user</artifactId>
    <name>cloud-mall-user</name>
    <description>
        Spring Cloud User Module
    </description>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <!--添加依赖-->
    <dependencies>
        <!--spring web 功能-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.6.3</version>
        </dependency>
        <!--MySQL Connector 与MySQL版本对应-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.28</version>
        </dependency>
        <!--MyBatis依赖-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.2</version>
        </dependency>
        <!--Eureka Client依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            <version>3.1.1</version>
        </dependency>
        <!--Redis相关依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
        </dependency>
        <!--Feign用于服务之间调用-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>3.1.1</version>
        </dependency>
        <!--引入common模块服务-->
        <dependency>
            <groupId>com.imooc</groupId>
            <artifactId>cloud-mall-common</artifactId>
            <version>1.0-SNAPSHOT</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <!--Maven插件-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.6.3</version>
            </plugin>
        </plugins>
    </build>

</project>
宇宇子 2022-04-07
源自：Spring Cloud实现电商项目   4-5 用户模块各层级的重构 part 2
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好帮手慕小尤 2022-04-07 14:13:57

同学你好，这是SpringBoot版本不兼容Swagger版本导致的，建议同学降低SpringBoot版本或先注释Swagger部分代码。

祝学习愉快！

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