Question

在验证提供给Is there a way to get a variable in to a custom ConstraintValidator when using JAX-RS?的解决方案时，我注意到isValid被调用了两次，我怀疑这是正确的。

我可以在尝试使用的两个WLP中重新创建问题：

WebSphere Application Server 19.0.0.2/wlp-1.0.25.cl190220190222-1311 Java HotSpot（TM）64位服务器VM，版本1.8.0_161-b12（en_US）上
WebSphere Application Server 19.0.0.5/wlp-1.0.28.cl190520190522-2227 Java HotSpot（TM）64位服务器VM，版本1.8.0_161-b12（en_US）上

server.xml

    <featureManager>
        <feature>jaxrs-2.1</feature>
        <feature>localConnector-1.0</feature>
        <feature>transportSecurity-1.0</feature>
        <feature>beanValidation-2.0</feature>
        <feature>jaxrsClient-2.1</feature>
        <feature>cdi-2.0</feature>
    </featureManager>

在解释双重验证的代码中找不到任何内容。

堆栈转储显示这是在同一线程中发生的。第一个验证堆栈摘要：

.....
    ValidatorImpl.validateParameters(T, Method, Object[], Class<?>...) line: 224    
    BeanValidationProvider.validateParameters(T, Method, Object[]) line: 113    
    GeneratedMethodAccessor593.invoke(Object, Object[]) line: not available 
    Method.invoke(Object, Object...) line: not available    
    LibertyJaxRsInvoker.callValidationMethod(String, Object[], Object) line: 371    
    LibertyJaxRsInvoker.invoke(Exchange, Object, Method, List<Object>) line: 254    
    LibertyJaxRsInvoker(JAXRSInvoker).invoke(Exchange, Object, Object) line: 205    
.....

第二个验证堆栈片段在几毫秒后出现：

....
    ValidatorImpl.validateParameters(T, Method, Object[], Class<?>...) line: 224    
    ValidationInterceptor.validateMethodInvocation(InvocationContext) line: 66  
    GeneratedMethodAccessor662.invoke(Object, Object[]) line: not available 
    Method.invoke(Object, Object...) line: not available    
    SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(InvocationContext) line: 73   
    InterceptorMethodHandler.executeAroundInvoke(Object, Method, Method, Object[], InterceptorMethodHandler$CachedInterceptionChain, InterceptionDecorationContext$Stack) line: 84  
    InterceptorMethodHandler.executeInterception(Object, Method, Method, Object[], InterceptionType, InterceptionDecorationContext$Stack) line: 72  
    InterceptorMethodHandler.invoke(InterceptionDecorationContext$Stack, Object, Method, Method, Object[]) line: 56 
    CombinedInterceptorAndDecoratorStackMethodHandler.invoke(InterceptionDecorationContext$Stack, Object, Method, Method, Object[], boolean, boolean) line: 79  
    CombinedInterceptorAndDecoratorStackMethodHandler.invoke(InterceptionDecorationContext$Stack, Object, Method, Method, Object[]) line: 68    
    CustomerResource$Proxy$_$$_WeldSubclass.postCustomer(Customer) line: not available  
    CustomerResource$Proxy$_$$_WeldClientProxy.postCustomer(Customer) line: not available   
    GeneratedMethodAccessor661.invoke(Object, Object[]) line: not available 
    Method.invoke(Object, Object...) line: not available    
    LibertyJaxRsServerFactoryBean.performInvocation(Exchange, Object, Method, Object[]) line: 652   
    LibertyJaxRsInvoker.performInvocation(Exchange, Object, Method, Object[]) line: 160 
    LibertyJaxRsInvoker(AbstractInvoker).invoke(Exchange, Object, Method, List<Object>) line: 96    
    LibertyJaxRsInvoker.invoke(Exchange, Object, Method, List<Object>) line: 273    
    LibertyJaxRsInvoker(JAXRSInvoker).invoke(Exchange, Object, Object) line: 205
....

难道验证只能调用一次吗？

自定义ConstraintValidatior在JAX-RS中执行两次

0 个答案: