Neo4j-cypher-dsl java.util.MissingResourceException：找不到捆綁包 java.util.PropertyResourceBundle 的資源，key assertions.node-required

Question

我正在使用Spring Boot 2.6.2 （帶有 spring-data-neo4j:6.2.0 和 neo4j-cypher-dsl:2021.4.1），我遇到以下錯誤

java.util.MissingResourceException: Can't find resource for bundle java.util.PropertyResourceBundle, key assertions.node-required
    at java.base/java.util.ResourceBundle.getObject(ResourceBundle.java:564) ~[na:na]
    at java.base/java.util.ResourceBundle.getString(ResourceBundle.java:521) ~[na:na]
    at org.neo4j.cypherdsl.core.Functions.id(Functions.java:57) ~[neo4j-cypher-dsl-2021.4.1.jar:2021.4.1]
    at org.neo4j.cypherdsl.core.AbstractNode.internalId(AbstractNode.java:96) ~[neo4j-cypher-dsl-2021.4.1.jar:2021.4.1]
    at org.springframework.data.neo4j.core.mapping.CypherGenerator.prepareSaveOf(CypherGenerator.java:337) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at org.springframework.data.neo4j.core.Neo4jTemplate.lambda$saveImpl$2(Neo4jTemplate.java:394) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at org.springframework.data.neo4j.core.DefaultNeo4jClient$RunnableStatement.runWith(DefaultNeo4jClient.java:208) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at org.springframework.data.neo4j.core.DefaultNeo4jClient$DefaultRecordFetchSpec.one(DefaultNeo4jClient.java:453) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at org.springframework.data.neo4j.core.Neo4jTemplate.saveImpl(Neo4jTemplate.java:398) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at org.springframework.data.neo4j.core.Neo4jTemplate.save(Neo4jTemplate.java:343) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at org.springframework.data.neo4j.repository.support.SimpleNeo4jRepository.save(SimpleNeo4jRepository.java:119) ~[spring-data-neo4j-6.2.0.jar:6.2.0]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:289) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:529) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:285) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:638) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:163) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:138) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:80) ~[spring-data-commons-2.6.0.jar:2.6.0]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) ~[spring-tx-5.3.14.jar:5.3.14]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) ~[spring-tx-5.3.14.jar:5.3.14]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) ~[spring-tx-5.3.14.jar:5.3.14]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) ~[spring-tx-5.3.14.jar:5.3.14]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.3.14.jar:5.3.14]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215) ~[spring-aop-5.3.14.jar:5.3.14]
    at com.sun.proxy.$Proxy198.save(Unknown Source) ~[na:na]
    at com.acme.FooBarDao.save(FooBarDao.java:82) ~[classes/:na]
...

FooBarDao.java:82行是對節點存儲庫的簡單調用，如下所示

fooBarNodeRepository.save(fooBarNode);

FooBarNodeRepository是一個簡單的節點存儲庫，如下所示：

public interface FooBarNodeRepository extends Neo4jRepository<FooBarNode, Long> {
    Optional<FooBarNode> findByGid(String gid);

    void deleteByGid(String gid);

    @Query("MATCH (n:FooBar) WHERE n.gid = $gid RETURN id(n)")
    Long getIdByGid(String gid);
}

相同的代碼在Spring Boot 2. 5 .2下沒有問題

我做了一些調試，異常是從 org.neo4j.cypherdsl.core.Functions 第 57 行拋出的，如下所示

Assertions.notNull(node, Cypher.messages.getString(MessageKeys.ASSERTIONS_NODE_REQUIRED));

節點不是 null，由於某種原因Cypher.messages沒有被加載

Answer 1

根本問題已經找到。

在日志中啟用 TRACE 時，我在日志中發現以下內容：

2022-01-21 10:29:20.484 TRACE 19636 --- [  restartedMain] .i.s.PathMatchingResourcePatternResolver : Resolved classpath location [messages.properties] to resources [URL [file:/E:/AcmeFoobar/target/classes/messages.properties], URL [jar:file:/C:/Users/tariqd/.m2/repository/org/neo4j/neo4j-cypher-dsl/2021.4.1/neo4j-cypher-dsl-2021.4.1.jar!/messages.properties]]
2022-01-21 10:29:20.484 TRACE 19636 --- [  restartedMain] utoConfiguration$ResourceBundleCondition : Condition MessageSourceAutoConfiguration.ResourceBundleCondition on org.springframework.boot.autoconfigure.context.MessageSourceAutoConfiguration matched due to ResourceBundle found bundle URL [file:/E:/AcmeFoobar/target/classes/messages.properties]

所以 Spring Boot 正在注入Cypher.messages與項目的messages.properties而不是neo4j-cypher-dsl之一。

作為概念證明，我將neo4j-cypher-dsl-2021.4.1.jar./messages.properties的內容插入到項目的messages.properties的尾部並且它起作用了。

以上暫時可以作為一種解決方法，但由於messages.properties是任何 Spring 引導應用程序中的默認設置，因此我建議進行以下修復：

1. 將neo4j-cypher-dsl/messages.properties重命名為 neo4j- cypher-dsl/neo4j-cypher-dsl-messages.properties
2. 更新org.neo4j.cypherdsl.core.Cypher中的第 56 行，如下所示：

static final ResourceBundle messages = ResourceBundle.getBundle("neo4j-cypher-dsl-messages");