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我正在构建一个在使用 Spring Cloud 快照构建之前正在运行的项目。除了 Zuul Server，一切似乎都正常。我收到以下异常：

Caused by: javax.validation.ValidationException: Unable to instantiate Configuration.
    at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:279)
    at org.springframework.validation.beanvalidation.LocalValidatorFactoryBean.afterPropertiesSet(LocalValidatorFactoryBean.java:223)
    at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor$Jsr303ValidatorFactory.run(ConfigurationPropertiesBindingPostProcessor.java:361)
    at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor.afterPropertiesSet(ConfigurationPropertiesBindingPostProcessor.java:174)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)
    ... 28 more
Caused by: javax.validation.ValidationException: HV000183: Unable to load 'javax.el.ExpressionFactory'. Check that you have the EL dependencies on the classpath
    at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.<init>(ResourceBundleMessageInterpolator.java:172)
    at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.<init>(ResourceBundleMessageInterpolator.java:118)
    at org.hibernate.validator.internal.engine.ConfigurationImpl.<init>(ConfigurationImpl.java:110)
    at org.hibernate.validator.internal.engine.ConfigurationImpl.<init>(ConfigurationImpl.java:86)
    at org.hibernate.validator.HibernateValidator.createGenericConfiguration(HibernateValidator.java:41)
    at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:276)

这带来了添加以下依赖项：

<dependency>
    <groupId>javax.el</groupId>
    <artifactId>javax.el-api</artifactId>
    <version>2.2.4</version>
 </dependency>
 <dependency>
    <groupId>org.glassfish.web</groupId>
    <artifactId>javax.el</artifactId>
    <version>2.2.4</version>
  </dependency>

这导致另一个例外：

   Caused by: java.lang.NoClassDefFoundError: org/springframework/web/client/RestTemplate

那时我放弃了修补我的 POM。然后我去克隆 GIT 上的 Zuul 项目。不幸的是，我遇到了同样的问题。

想法？

4

2 回答 2

2

zuul服务器的spring cloud示例版本有同样的问题。在我添加了 spring boot starter web 和 actuator 之后，它就消失了。

于 2015-01-13T19:07:29.040 回答
1

这只是依赖结构的变化。我什至不知道你为什么需要一个 EL 实现，但 tomcat-embed-el 可能是最好的一个。另一类来自spring-web。

于 2015-01-06T07:53:58.527 回答