无法初始化＆＃39; javax.el.E​​xpressionFactory＆＃39;验证时在GAE上

Question

我在GAE上使用Java8制作应用程序。我使用Gson序列化和反序列化jsons到pojo，我想使用javax.validation来验证那些POJO。没有春天或其他任何东西。我发现常见的实现是Hibernate验证器。 因此，经过多次搜索，我的pom包含：

<dependency>
    <groupId>javax.validation</groupId>
    <artifactId>validation-api</artifactId>
    <version>2.0.0.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>6.0.2.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate.validator</groupId>
    <artifactId>hibernate-validator-annotation-processor</artifactId>
    <version>6.0.2.Final</version>
</dependency>
<dependency>
    <groupId>org.glassfish</groupId>
    <artifactId>javax.el</artifactId>
    <version>3.0.1-b08</version>
</dependency>

和

instance.factory = Validation.buildDefaultValidatorFactory();

为空

和日志显示

javax.validation.ValidationException: HV000183: Unable to initialize 'javax.el.ExpressionFactory'. Check that you have the EL dependencies on the classpath, or use ParameterMessageInterpolator instead
    at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.buildExpressionFactory(ResourceBundleMessageInterpolator.java:122)
    at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.<init>(ResourceBundleMessageInterpolator.java:46)
    at org.hibernate.validator.internal.engine.ConfigurationImpl.getDefaultMessageInterpolator(ConfigurationImpl.java:420)
    at org.hibernate.validator.internal.engine.ConfigurationImpl.getDefaultMessageInterpolatorConfiguredWithClassLoader(ConfigurationImpl.java:596)
    at org.hibernate.validator.internal.engine.ConfigurationImpl.getMessageInterpolator(ConfigurationImpl.java:355)
    at org.hibernate.validator.internal.engine.ValidatorFactoryImpl.<init>(ValidatorFactoryImpl.java:149)
    at org.hibernate.validator.HibernateValidator.buildValidatorFactory(HibernateValidator.java:38)
    at org.hibernate.validator.internal.engine.ConfigurationImpl.buildValidatorFactory(ConfigurationImpl.java:322)
    at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:103)

PLS帮助Ivan

Answer 1

这对我有帮助。将此依赖项添加到您的pom.xml

    <dependency>
        <groupId>org.glassfish</groupId>
        <artifactId>javax.el</artifactId>
        <version>3.0.1-b08</version>
        <scope>test</scope>
    </dependency>