弹簧值配置未加载答案

【问题标题】：Spring valut config not loading弹簧值配置未加载
【发布时间】：2018-03-04 00:00:03
【问题描述】：

我有一个项目设置，其中我有一个父 pom 和子项目继承。我们正在使用云配置库。它作为一个单独的项目工作正常。我能够存储保险库属性并加载与此处链接中给出的相同http://cloud.spring.io/spring-cloud-vault/

但是，我需要在我的子项目中使用具有父级的保管库

使用下面的 pom -

子 pom<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-vault-config</artifactId> </dependency>

父pom

<name>FEO Microservices Parent</name>
    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring.boot.version>2.0.0.M3</spring.boot.version>
        <spring.cloud.version>Finchley.M1</spring.cloud.version>
        <spring.cloud.stream.version>Elmhurst.BUILD-SNAPSHOT</spring.cloud.stream.version>
        <springfox.swagger2.version>2.7.0</springfox.swagger2.version>
        <guava.version>20.0</guava.version>

这是堆栈跟踪：

ramework.beans.factory.BeanCreationException: Error creating bean with name 'vaultBootstrapConfiguration': Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.vault.config.VaultBootstrapConfiguration$$EnhancerBySpringCGLIB$$3c0bf335]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: Host must not be empty
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:277) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1281) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1137) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:499) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:755) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:136) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:177) ~[spring-cloud-context-2.0.0.M1.jar:2.0.0.M1]
    at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:99) ~[spring-cloud-context-2.0.0.M1.jar:2.0.0.M1]
    at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:65) ~[spring-cloud-context-2.0.0.M1.jar:2.0.0.M1]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:73) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:349) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:317) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
    at com.bbb.microservices.sku.SkuMicroserviceApplication.main(SkuMicroserviceApplication.java:22) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.vault.config.VaultBootstrapConfiguration$$EnhancerBySpringCGLIB$$3c0bf335]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: Host must not be empty
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:177) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:118) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:270) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    ... 26 common frames omitted
Caused by: java.lang.IllegalArgumentException: Host must not be empty
    at org.springframework.util.Assert.hasText(Assert.java:276) ~[spring-core-5.0.0.RC3.jar:5.0.0.RC3]
    at org.springframework.vault.client.VaultEndpoint.from(VaultEndpoint.java:85) ~[spring-vault-core-2.0.0.M1.jar:na]
    at org.springframework.cloud.vault.config.VaultBootstrapConfiguration.getVaultEndpoint(VaultBootstrapConfiguration.java:115) ~[spring-cloud-vault-config-2.0.0.M1.jar:2.0.0.M1]
    at org.springframework.cloud.vault.config.VaultBootstrapConfiguration.<init>(VaultBootstrapConfiguration.java:109) ~[spring-cloud-vault-config-2.0.0.M1.jar:2.0.0.M1]
    at org.springframework.cloud.vault.config.VaultBootstrapConfiguration$$EnhancerBySpringCGLIB$$3c0bf335.<init>(<generated>) ~[spring-cloud-vault-config-2.0.0.M1.jar:2.0.0.M1]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_131]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_131]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_131]
    at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[na:1.8.0_131]
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:165) ~[spring-beans-5.0.0.RC3.jar:5.0.0.RC3]
    ... 28 common frames omitted

【问题讨论】：

标签： spring spring-cloud-config hashicorp-vault

【解决方案1】：

您没有指定 Vault 属性，但根据错误判断您缺少 spring.cloud.vault.host 配置。将 spring.cloud.vault.host=<your_vault_host> 值添加到您的属性中，这应该会让您继续前进。

查看Spring Cloud Vault Quick Start Guide了解更多详情。

【讨论】：

这些在 bootstrap.properties 中可用，类似于我运行的演示项目的工作方式。 #spring.application.name=demo spring.application.name=${project.artifactId} spring.cloud.vault.host=localhost spring.cloud.vault.port=8200 spring.cloud.vault.scheme=http spring.cloud .vault.token=b7918e59-c701-2710-bf57-e388e3462dc0 spring.cloud.vault.uri=localhost:8200 spring.cloud.vault.connection-timeout=5000 spring.cloud.vault.read-timeout=15000
我怀疑与 maven 依赖项存在一些冲突，因为项目的父 pom 设置不同于我运行的演示应用程序。如下：
spring-milestonesSpring Milestonesrepo.spring.io/libs-milestone</url> false快照> spring-snapshotsSpring 快照repo.spring.io/libs-snapshot</url> true
spring-snapshotsSpring 快照repo.spring.io/libs-snapshot</url> truespring-milestonesSpring Milestonesrepo.spring.io/libs-milestone</url> false
falsefeo-repoFEO-Repository Replease11.185.55.148:8085/repository/maven-releases/</url> defaulttruefeo-repo-snapSSS-Repository 快照@ 987654327@> 默认

【解决方案2】：

我早些时候使用没有 http:// 的 uri 只是 localhost:8200 这以某种方式在 spring boot pre (2.0) 版本中工作（我虽然在配置中也提供了其他参数主机名等）。但是，当我将相同的代码移动到我的项目正在使用的 Spring boot 2.0 时，我遇到了这个问题。支持团队纠正了这个问题，我在 uri 中使用了 http://，它运行良好。

【讨论】：