QueryDSL where 子句上的 NullPointerException

Yun*_*ium 2 java spring hibernate querydsl spring-data-jpa

使用Query DSL和 hibernate (Spring Data JPA) 来构建这样的查询

    if( bankId != null ){
        query.where(
            coopMember.personId.bankAccountId.isNotNull().and(
            coopMember.personId.bankAccountId.bankBranch.bankId.eq(bankId))
        );
    }

    return query.fetch();
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这里的逻辑很简单:如果有一个与某人关联的银行帐户,则按银行 ID 过滤结果。

所述BankAccount实体具有BankBranch保持bankId整数值。一个CoopMember实体可能有也可能没有BankAccount

问题是当执行上述 QueryDSL 查询时NullPointerException,即使存在非空检查,也会抛出 a。

更新

将逻辑更改为遵循相同的错误会引发。我想知道为什么bankBranch不能进行“空检查”:

    if( bankId != null ){
        query.where(
                coopMember.personId.bankAccountId.isNotNull().and(
                        coopMember.personId.bankAccountId.bankBranch.isNotNull())
        );
    }
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抛出以下堆栈跟踪:

java.lang.NullPointerException:在 re.iprocu.repository.impl.MemberRepositoryImpl.findMembersByPaymentModes(MemberRepositoryImpl.java:306) ~[classes/:na] 在 re.iprocu.repository.impl.MemberRepositoryImpl$$FastClass$6aCG5ae 为 null invoke() ~[classes/:na] 在 org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework.ReflectiveMethodInvocation .proceed(ReflectiveMethodInvocation.java:157) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.dao.support.PersistenceExceptionTranslationInterceptor。invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring -aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673) ~[spring-aop-4.3.13.RELEASE. jar:4.3.13.RELEASE] 在 re.iprocu.repository.impl.MemberRepositoryImpl$$EnhancerBySpringCGLIB$$8dc2283d.findMembersByPaymentModes() ~[classes/:na] 在 sun.reflect.NativeMethodAccessorImpl.invoke0~[Native Method) :1.8.0_111] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.80_111] 在 java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111] 在 org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java: 520) ~[spring-data-commons-1.13.9.RELEASE.jar:na] 在 org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:495) ~[spring-data -commons-1.13.9.RELEASE.jar:na] 在 org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:477) ~[spring-data-commons-1.13.9. RELEASE.jar:na] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13。RELEASE] 在 org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:56) ~[spring-data-commons-1.13.9.RELEASE.jar:na] 在 org.springframework.aop.framework.ReflectiveMethodInvocation。继续(ReflectiveMethodInvocation.java:179)~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[ spring-tx-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.13.RELEASE.jar :4.3.13.RELEASE] 在 org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.13。RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proce (ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostorProcessor 133) ~[spring-data-jpa-1.11.9.RELEASE.jar:na] 在 org.springframework.aop.framework.ReflectiveMethodInvocation。继续(ReflectiveMethodInvocation.java:179)~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)~[spring -aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.13.RELEASE.jar: 4.3.13.RELEASE] 在 org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57) ~[spring-data-commons-1.13.9.RELEASE.jar:na] 在 org. springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework。JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] at com.sun.proxy.$Proxy189.findMembersByPaymentModes(Unknown Source) ~[na:na ] 在 re.iprocu.service.impl.PaymentPeriodServiceBean.findMemberPaymentModeDetails(PaymentPeriodServiceBean.java:183) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111] at sun。 reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111] at java.lang.reflect。 Method.invoke(Method.java:498) ~[na:1.8.0_111] at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) ~[spring-aop-4.3.13.RELEASE.jar :4.3.13.RELEASE] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation) .java:157) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx -4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.13.RELEASE.jar:4.3. 13.RELEASE] 在 org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy) .java:213) ~[spring-aop-4.3.13.RELEASE.jar:4.3.13.RELEASE] at com.sun.proxy.$Proxy191.findMemberPaymentModeDetails(Unknown Source) ~[na:na] at re.iprocu .api.PaymentPeriodController.memberPaymentsByPaymentMode(PaymentPeriodController.java:299) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111] at sun.reflect.NativeMethodAccessorImplative.invoke(N) .java:62) ~[na:1.8.0_111] 在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111] 在 java.lang.reflect.Method.invoke(Method.java) :498) ~[na:1.8.0_111] 在 org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE ] 在 org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.servlet .mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.servlet.mvc.method。 annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter。handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85 ) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) ~[spring-webmvc-4.3.13。 RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) ~[spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.servlet.FrameworkServlet.doGet( FrameworkServlet.java:861) [spring-webmvc-4.3.13.RELEASE.jar:4.3。13.RELEASE] 在 javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [javax.servlet-api-3.1.0.jar:3.1.0] 在 org.springframework.web.servlet.FrameworkServlet.service (FrameworkServlet.java:846) [spring-webmvc-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [javax.servlet-api- 3.1.0.jar:3.1.0] 在 io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io .undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter (OncePerRequestFilter.java:101) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 io.undertow.servlet.core.ManagedFilter。doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow -servlet-1.4.21.Final.jar:1.4.21.Final] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) [spring-security-web-4.2.3.RELEASE .jar:4.2.3.RELEASE] 在 org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-4.2.3.RELEASE.jar:4.2.3 .RELEASE] 在 org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org. springframework.security.web.FilterChainProxy$VirtualFilterChain。doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2 .3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-4.2.3.RELEASE.jar:4.2 .3.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org. springframework.security.web.authentication.AnonymousAuthenticationFilter。doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-4.2 .3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2 .3.RELEASE] 在 org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org。 springframework.security。web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 re.iprocu.utils.jwt.JwtAuthenticationTokenFilter.doFilterInternal(JwtAuthenticationTokenFilter. java:67) [classes/:na] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org .springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.authentication .logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy) .java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) [spring-security-web -4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar:4.3.13 .RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework。 security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain。 doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring -security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar :4.3.13.RELEASE] 在 org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.security.web.FilterChainProxy。 doFilter(FilterChainProxy.java:177) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE] 在 org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE]在 org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 io.undertow.servlet.core.ManagedFilter.doFilter (ManagedFilter.java:61) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow- servlet-1.4.21.Final.jar:1.4.21.Final] 在 org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.13.RELEASE.jar:4.3。 13.RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter。doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet -1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.21.Final.jar:1.4 .21.Final] 在 org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web。 filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers。FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar :4.3.13.RELEASE] 在 io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow。 servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter. java:197) [spring-web-4.3.13.RELEASE.jar:4.3.13。RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.13.RELEASE.jar:4.3.13.RELEASE] 在 io.undertow.servlet.core.ManagedFilter .doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [ undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) [undertow-servlet-1.4.21.Final.jar: 1.4.21.Final] 在 io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow .servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:64) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final]在 io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.servlet.handlers.security .ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [ undertow-core-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) [undertow-core-1.4.21.Final.jar: 1.4.21.Final] 在 io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) [undertow-servlet-1.4.21.Final.jar:1.4.21.Final] 在 io.undertow.security .handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMecha

Yur*_* K. 5

我最近遇到了类似的问题,不得不通过 Q-classes 构造函数进行调试,以了解链中字段为空的原因。解决方案在于官方文档

默认情况下,Querydsl 仅初始化前两个级别的引用属性。在需要更长的初始化路径的情况下,必须通过 com.querydsl.core.annotations.QueryInit 注释在域类型中注释这些路径。QueryInit 用于需要深度初始化的属性。下面的例子演示了用法。

@Entity
class Event {
    @QueryInit("customer.address")
    Account account;
}

@Entity
class Account {
    Customer customer;
}

@Entity
class Customer {
    String name;
    Address address;
    // ...
}
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当事件路径被初始化为根路径/变量时,此示例强制执行 account.customer 路径的初始化。路径初始化格式也支持通配符,例如“customer. ”或只是“ ”。

我希望看到一些全局 APT 选项来设置默认级别什么的,但没有找到。所以对我来说唯一的解决方案是用“@QueryInit”注释“污染”实体。

希望它有所帮助,尽管帖子很旧。

更新:在我的情况下QueryInit("*")不起作用,所以我必须QueryInit("*.*")按照此处的建议“最顶层”实体处使用。此信息不在手册中,但显然:

*.*适用于多级查询,而*指的是下一级属性