由以下原因引起：java.lang.ClassNotFoundException：微服务中的org.springframework.messaging.converter.MessageConverter

时间：2018-08-19 13:58:41

标签： spring spring-boot microservices

我正在通过https://github.com/sqshq/PiggyMetrics链接关注微服务教程，并且能够成功启动以下服务

  1. config
  2. 注册表
  3. 网关

在每个services .yml文件中，我也将注册表更改为localhost，并将配置也更改为localhost。

但是当我运行“监视”服务时，出现以下错误。

ava.lang.NoClassDefFoundError: org/springframework/messaging/converter/MessageConverter
    at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_151]
    at java.lang.ClassLoader.defineClass(Unknown Source) ~[na:1.8.0_151]
    at java.security.SecureClassLoader.defineClass(Unknown Source) ~[na:1.8.0_151]
    at java.net.URLClassLoader.defineClass(Unknown Source) ~[na:1.8.0_151]
    at java.net.URLClassLoader.access$100(Unknown Source) ~[na:1.8.0_151]
    at java.net.URLClassLoader$1.run(Unknown Source) ~[na:1.8.0_151]
    at java.net.URLClassLoader$1.run(Unknown Source) ~[na:1.8.0_151]
    at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_151]
    at java.net.URLClassLoader.findClass(Unknown Source) ~[na:1.8.0_151]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_151]
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) ~[na:1.8.0_151]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[na:1.8.0_151]
    at org.springframework.integration.config.IntegrationRegistrar.registerDefaultDatatypeChannelMessageConverter(IntegrationRegistrar.java:425) ~[spring-integration-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.integration.config.IntegrationRegistrar.registerBeanDefinitions(IntegrationRegistrar.java:106) ~[spring-integration-core-5.0.6.RELEASE.jar:5.0.6.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.lambda$loadBeanDefinitionsFromRegistrars$1(ConfigurationClassBeanDefinitionReader.java:358) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at java.util.LinkedHashMap.forEach(Unknown Source) ~[na:1.8.0_151]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars(ConfigurationClassBeanDefinitionReader.java:357) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:145) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:328) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
    at com.piggymetrics.monitoring.MonitoringApplication.main(MonitoringApplication.java:14) [classes/:na]
Caused by: java.lang.ClassNotFoundException: org.springframework.messaging.converter.MessageConverter
    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]
    ... 32 common frames omitted

错误： enter image description here

启动“身份验证服务”时出现以下错误

com.mongodb.MongoSocketException: auth-mongodb
    at com.mongodb.ServerAddress.getSocketAddress(ServerAddress.java:188) ~[mongodb-driver-core-3.6.4.jar:na]
    at com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:59) ~[mongodb-driver-core-3.6.4.jar:na]
    at com.mongodb.connection.SocketStream.open(SocketStream.java:57) ~[mongodb-driver-core-3.6.4.jar:na]
    at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:126) ~[mongodb-driver-core-3.6.4.jar:na]
    at com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:114) ~[mongodb-driver-core-3.6.4.jar:na]
    at java.lang.Thread.run(Unknown Source) [na:1.8.0_151]
Caused by: java.net.UnknownHostException: auth-mongodb
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) ~[na:1.8.0_151]
    at java.net.InetAddress$2.lookupAllHostAddr(Unknown Source) ~[na:1.8.0_151]
    at java.net.InetAddress.getAddressesFromNameService(Unknown Source) ~[na:1.8.0_151]
    at java.net.InetAddress.getAllByName0(Unknown Source) ~[na:1.8.0_151]
    at java.net.InetAddress.getAllByName(Unknown Source) ~[na:1.8.0_151]
    at java.net.InetAddress.getAllByName(Unknown Source) ~[na:1.8.0_151]
    at java.net.InetAddress.getByName(Unknown Source) ~[na:1.8.0_151]
    at com.mongodb.ServerAddress.getSocketAddress(ServerAddress.java:186) ~[mongodb-driver-core-3.6.4.jar:na]
    ... 5 common frames omitted

1 个答案:

答案 0 :(得分：0)

我能够弄清楚这个问题。在构建整个源代码时，我仔细检查了maven调试日志，发现了以下错误。

[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ monitoring ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to C:\Users\pc\Desktop\My_MicroServices\PPP\PiggyMetrics-master\monitoring\target\classes
[ERROR] error reading C:\Users\pc\.m2\repository\io\projectreactor\ipc\reactor-netty\0.7.8.RELEASE\reactor-netty-0.7.8.RELEASE.jar; invalid LOC header (bad signature)
[ERROR] error reading C:\Users\pc\.m2\repository\org\springframework\spring-messaging\5.0.7.RELEASE\spring-messaging-5.0.7.RELEASE.jar; invalid LOC header (bad signature)
[INFO]
[INFO] --- maven-resources-plugin:3.0.1:testResources (default-testResources) @ monitoring ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:testCompile (default-testCompile) @ monitoring ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to C:\Users\pc\Desktop\My_MicroServices\PPP\PiggyMetrics-master\monitoring\target\test-classes
[ERROR] error reading C:\Users\pc\.m2\repository\io\projectreactor\ipc\reactor-netty\0.7.8.RELEASE\reactor-netty-0.7.8.RELEASE.jar; invalid LOC header (bad signature)
[ERROR] error reading C:\Users\pc\.m2\repository\org\springframework\spring-messaging\5.0.7.RELEASE\spring-messaging-5.0.7.RELEASE.jar; invalid LOC header (bad signature)

我从"spring-messaging-5.0.7.RELEASE.jar"删除了"reactor-netty-0.7.8.RELEASE.jar"和.m2并重建了项目。这次没有构建编译错误，甚至可以弥补监视服务的不足。

完成！

相关问题
最新问题