如何解决使用Docker进行Springboot：环境变量以覆盖Spring Boot的application.properties中的RabbitMQ主机IP属性
我正在使用Spring Boot应用程序，在这里我必须使用RabbitMQ作为消息代理。我不是在本地主机上使用RabbitMQ，而是使用以下命令从Docker Hub使用Docker镜像
docker run -d --name rabbit-name-management -p 15672:15672 -p 5672:5672 -p 15671:15671 -p 5671:5671 -p 4369:4369 rabbitmq:3-management
因此它拉取映像并作为docker容器成功运行。
现在在我的Spring Boot应用程序中，我使用一个application.properties文件来连接到RabbitMQ，该文件如下所示：
spring.rabbitmq.host=localhost
spring.rabbitmq.port=5672
spring.rabbitmq.username=*****
spring.rabbitmq.password=********
我的spring boot docker文件
FROM openjdk:8-jdk-alpine
VOLUME /tmp
COPY encryptionKey.jks encryptionKey.jks
COPY UnlimitedJCEPolicyJDK8/* /usr/lib/jvm/java-1.8-openjdk/jre/lib/security/
COPY target/ConfigServer-0.0.1-SNAPSHOT.jar ConfigServer.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","ConfigServer.jar"]
我使用命令docker inspect <RABBITMQ_CONTAINER_ID>来找出运行RabbitMQ的机器的IP地址。为了使其与RabbitMQ通信，我使用环境变量使用运行RabbitMQ的容器的实际IP地址覆盖localhost。 docker命令如下
docker run -p 8012:8012 -e "spring.rabbitmq.host=http://172.17.0.3" config-server
但是此命令失败，并记录如下错误
2020-08-20 06:10:31.077 ERROR 1 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rabbitConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/amqp/RabbitAutoConfiguration$RabbitConnectionFactoryCreator.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.amqp.rabbit.connection.CachingConnectionFactory]: Factory method 'rabbitConnectionFactory' threw exception; nested exception is java.lang.IllegalArgumentException: Address http://172.17.0.3:5672 seems to contain an unquoted IPv6 address. Make sure you quote IPv6 addresses like so: [2001:db8:85a3:8d3:1319:8a2e:370:7348]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:655) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at com.appsdeveloperblog.photoapp.api.PhotoAppApiConfigServerApplication.main(PhotoAppApiConfigServerApplication.java:12) [classes!/:0.0.1-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49) [ConfigServer.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:109) [ConfigServer.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) [ConfigServer.jar:0.0.1-SNAPSHOT]
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) [ConfigServer.jar:0.0.1-SNAPSHOT]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.amqp.rabbit.connection.CachingConnectionFactory]: Factory method 'rabbitConnectionFactory' threw exception; nested exception is java.lang.IllegalArgumentException: Address http://172.17.0.3:5672 seems to contain an unquoted IPv6 address. Make sure you quote IPv6 addresses like so: [2001:db8:85a3:8d3:1319:8a2e:370:7348]
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]
... 28 common frames omitted
Caused by: java.lang.IllegalArgumentException: Address http://172.17.0.3:5672 seems to contain an unquoted IPv6 address. Make sure you quote IPv6 addresses like so: [2001:db8:85a3:8d3:1319:8a2e:370:7348]
at com.rabbitmq.client.Address.parseHost(Address.java:96) ~[amqp-client-5.9.0.jar!/:5.9.0]
at com.rabbitmq.client.Address.parseAddress(Address.java:158) ~[amqp-client-5.9.0.jar!/:5.9.0]
at com.rabbitmq.client.Address.parseAddresses(Address.java:173) ~[amqp-client-5.9.0.jar!/:5.9.0]
at org.springframework.amqp.rabbit.connection.AbstractConnectionFactory.setAddresses(AbstractConnectionFactory.java:299) ~[spring-rabbit-2.2.10.RELEASE.jar!/:2.2.10.RELEASE]
at org.springframework.boot.context.properties.PropertyMapper$Source.to(PropertyMapper.java:316) ~[spring-boot-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at org.springframework.boot.autoconfigure.amqp.RabbitAutoConfiguration$RabbitConnectionFactoryCreator.rabbitConnectionFactory(RabbitAutoConfiguration.java:102) ~[spring-boot-autoconfigure-2.3.3.RELEASE.jar!/:2.3.3.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.8.RELEASE.jar!/:5.2.8.RELEASE]
... 29 common frames omitted
我不知道这个unquoted IPv6 address是什么，为什么它在这里抱怨它，我应该在这里做什么以消除此错误。
解决方法
来自amqpclie-Address source code：
/**
* Extracts hostname or IP address from a string containing a hostname,IP address,* hostname:port pair or IP address:port pair.
* Note that IPv6 addresses must be quoted with square brackets,e.g. [2001:db8:85a3:8d3:1319:8a2e:370:7348].
*
* @param addressString the string to extract hostname from
* @return the hostname or IP address
*/
public static String parseHost(String addressString) {
//...
int lastClosingSquareBracket = addressString.lastIndexOf("]");
if (lastClosingSquareBracket == -1) {
String[] parts = addressString.split(":");
if (parts.length > 2) { // HERE OCCURS THE ISSUE
String msg = "Address " +
addressString +
" seems to contain an unquoted IPv6 address. Make sure you quote IPv6 addresses like so: [2001:db8:85a3:8d3:1319:8a2e:370:7348]";
LOGGER.error(msg);
throw new IllegalArgumentException(msg);
}
return parts[0];
}
//...
}
您应该删除http前缀（它将使您的地址被视为ip v4格式）：
docker run -p 8012:8012 -e "spring.rabbitmq.host=172.17.0.3" config-server
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