StackOverflowError 添加用户字段后发生。

huangapple
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英文:

StackOverflowError after adding user field

问题

你的代码中似乎存在循环引用的问题，导致栈溢出错误。具体来说，你的User类和Role类都定义了一个Set类型的字段，分别是roles和users，并且它们使用了@ManyToMany注解来表示它们之间的多对多关系。这会导致在加载数据时出现循环引用，从而导致栈溢出错误。

为了解决这个问题，你可以考虑以下几种方法之一：

  1. 移除User类中的roles字段，因为你已经在Role类中定义了与用户的关联。这可以防止循环引用。

  2. 在User类的roles字段上使用@JsonIgnore注解，以防止在序列化时引发循环引用。这对于REST API等情况可能有帮助。

  3. 考虑在需要时使用懒加载来加载roles，以避免在一次加载中加载所有相关实体。这可能需要对你的数据访问层进行一些调整。

无论你选择哪种方法，都需要确保在数据模型中避免循环引用，以免导致栈溢出错误。同时，你还可以检查你的数据库模式，确保user_to_role表的关联正确设置。

英文: 
@Data
@Entity
@Table(name = "users")
@ToString(exclude = "password")
@NoArgsConstructor
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;


@ManyToMany(cascade = {CascadeType.REFRESH, CascadeType.MERGE})
@JoinTable(name = "user_to_role",
        joinColumns = @JoinColumn(name = "user_id"),
        inverseJoinColumns = @JoinColumn(name = "role_id"))
private Set<Role> roles;
}

in my code users have a role field, I decided to add users field to the roles entity.I need this in order not to contact the database every time to search for users, if there are roles. I want to get a list of id of users who have this role, without the rest of the fields. As I understand it, lazy loading will help me with this, but I'm not sure(I haven't had time to test yet).
When I try to log in, I get the following error, I suppose it is due to spring security, I don't understand

@Data
@Entity
@Table(name = "roles")
@NoArgsConstructor
public class Role {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@ManyToMany
@JoinTable(name = "user_to_role",
joinColumns = @JoinColumn(name = "user_id"),
inverseJoinColumns = @JoinColumn(name = "role_id"))
private Set<User> users;
}
java.lang.StackOverflowError: null
at ch.qos.logback.classic.spi.TurboFilterList.getTurboFilterChainDecision(TurboFilterList.java:49) ~[logback-classic-1.2.3.jar:na]
at ch.qos.logback.classic.LoggerContext.getTurboFilterChainDecision_0_3OrMore(LoggerContext.java:269) ~[logback-classic-1.2.3.jar:na]
at ch.qos.logback.classic.Logger.callTurboFilters(Logger.java:751) ~[logback-classic-1.2.3.jar:na]
at ch.qos.logback.classic.Logger.isDebugEnabled(Logger.java:469) ~[logback-classic-1.2.3.jar:na]
at org.apache.logging.slf4j.SLF4JLogger.isEnabledFor(SLF4JLogger.java:211) ~[log4j-to-slf4j-2.13.3.jar:2.13.3]
at org.apache.logging.slf4j.SLF4JLogger.isEnabled(SLF4JLogger.java:121) ~[log4j-to-slf4j-2.13.3.jar:2.13.3]
at org.apache.logging.log4j.spi.AbstractLogger.isEnabled(AbstractLogger.java:1513) ~[log4j-api-2.13.3.jar:2.13.3]
at org.jboss.logging.Log4j2Logger.doLog(Log4j2Logger.java:52) ~[jboss-logging-3.4.1.Final.jar:3.4.1.Final]
at org.jboss.logging.Logger.debug(Logger.java:531) ~[jboss-logging-3.4.1.Final.jar:3.4.1.Final]
at org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:128) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.jdbc.spi.SqlStatementLogger.logStatement(SqlStatementLogger.java:112) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:170) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:151) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.prepareQueryStatement(AbstractLoadPlanBasedLoader.java:198) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:162) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:104) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:710) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:76) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2161) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:589) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:264) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:585) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:149) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.PersistentSet.hashCode(PersistentSet.java:458) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at dev.redlab.mgs.backoffice.model.entities.Role.hashCode(Role.java:25) ~[main/:na]
at java.base/java.util.HashMap.hash(HashMap.java:340) ~[na:na]
at java.base/java.util.HashMap.put(HashMap.java:613) ~[na:na]
at java.base/java.util.HashSet.add(HashSet.java:221) ~[na:na]
at java.base/java.util.AbstractCollection.addAll(AbstractCollection.java:336) ~[na:na]
at org.hibernate.collection.internal.PersistentSet.endRead(PersistentSet.java:355) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollection(CollectionLoadContext.java:239) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:224) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:198) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.CollectionReferenceInitializerImpl.endLoading(CollectionReferenceInitializerImpl.java:154) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishLoadingCollections(AbstractRowReader.java:267) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishUp(AbstractRowReader.java:218) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:137) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:105) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:710) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:76) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2161) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:589) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:264) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:585) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:149) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.PersistentSet.hashCode(PersistentSet.java:458) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at dev.redlab.mgs.backoffice.model.entities.User.hashCode(User.java:15) ~[main/:na]
at java.base/java.util.HashMap.hash(HashMap.java:340) ~[na:na]
at java.base/java.util.HashMap.put(HashMap.java:613) ~[na:na]
at java.base/java.util.HashSet.add(HashSet.java:221) ~[na:na]
at java.base/java.util.AbstractCollection.addAll(AbstractCollection.java:336) ~[na:na]
at org.hibernate.collection.internal.PersistentSet.endRead(PersistentSet.java:355) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollection(CollectionLoadContext.java:239) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:224) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:198) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.CollectionReferenceInitializerImpl.endLoading(CollectionReferenceInitializerImpl.java:154) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishLoadingCollections(AbstractRowReader.java:267) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishUp(AbstractRowReader.java:218) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:137) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:105) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:710) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:76) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2161) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:589) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:264) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:585) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:149) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.PersistentSet.hashCode(PersistentSet.java:458) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at dev.redlab.mgs.backoffice.model.entities.Role.hashCode(Role.java:25) ~[main/:na]
at java.base/java.util.HashMap.hash(HashMap.java:340) ~[na:na]
at java.base/java.util.HashMap.put(HashMap.java:613) ~[na:na]
at java.base/java.util.HashSet.add(HashSet.java:221) ~[na:na]
at java.base/java.util.AbstractCollection.addAll(AbstractCollection.java:336) ~[na:na]
at org.hibernate.collection.internal.PersistentSet.endRead(PersistentSet.java:355) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollection(CollectionLoadContext.java:239) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:224) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:198) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.CollectionReferenceInitializerImpl.endLoading(CollectionReferenceInitializerImpl.java:154) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishLoadingCollections(AbstractRowReader.java:267) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishUp(AbstractRowReader.java:218) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:137) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:105) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:710) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:76) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2161) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:589) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:264) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:585) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:149) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.PersistentSet.hashCode(PersistentSet.java:458) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at dev.redlab.mgs.backoffice.model.entities.User.hashCode(User.java:15) ~[main/:na]
at java.base/java.util.HashMap.hash(HashMap.java:340) ~[na:na]
at java.base/java.util.HashMap.put(HashMap.java:613) ~[na:na]
at java.base/java.util.HashSet.add(HashSet.java:221) ~[na:na]
at java.base/java.util.AbstractCollection.addAll(AbstractCollection.java:336) ~[na:na]
at org.hibernate.collection.internal.PersistentSet.endRead(PersistentSet.java:355) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollection(CollectionLoadContext.java:239) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:224) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.engine.loading.internal.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:198) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.CollectionReferenceInitializerImpl.endLoading(CollectionReferenceInitializerImpl.java:154) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishLoadingCollections(AbstractRowReader.java:267) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishUp(AbstractRowReader.java:218) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:137) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:105) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:710) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:76) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:102) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2161) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:589) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:264) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:585) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:149) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]
at org.hibernate.collection.internal.PersistentSet.hashCode(PersistentSet.java:458) ~[hibernate-core-5.4.17.Final.jar:5.4.17.Final]

this is repeated a huge number of times, I did not insert. thanks in advance
there is a user_to_role table in the database and an entry in it

答案1

得分: 0

@JsonIgnore
@ManyToMany
@JoinTable(
    name = "user_to_role",
    joinColumns = {@JoinColumn(name = "user_id", referencedColumnName = "id")},
    inverseJoinColumns = {@JoinColumn(name = "role_id", referencedColumnName = "id")}
)
private Set<Role> roles;

在User实体中尝试像这样，并在Role实体中进行相反操作（根据实体进行join和inverseJoin）。

请确保至少一个实体以懒加载模式加载/获取此属性，否则将出现无限循环的引用准备获取的情况。

@ManyToMany(fetch = FetchType.LAZY)

上述操作应该在至少一个相互引用的实体上完成。

英文: 
@JsonIgnore
@ManyToMany
@JoinTable(
name = &quot;user_to_role&quot;,
joinColumns = {@JoinColumn(name = &quot;user_id&quot;, referencedColumnName = &quot;id&quot;)},
inverseJoinColumns = {@JoinColumn(name = &quot;role_id&quot;, referencedColumnName = &quot;id&quot;)})
private Set&lt;Role&gt; roles;

Can you try like this in the User entity, and the Vice Versa(inverseJoin and join based on entity) on Role Entity side also.

And please ensure that either of the entity should load/Fetch this property in a Lazy mode otherwise there will be an infinite loop of references that are ready to fetched.

@ManyToMany(fetch = FetchType.LAZY)

The above should be done on at least one of the cross referenced entities.

答案2

得分: 0

我的代码使用注解 @Data，该注解生成 hashCode 和 ToString 方法，而这个结构导致了 Hibernate 卡住。在我的情况下，我只是添加了排除参数，比如 @EqualsAndHashCode(exclude="dependent_list")。

英文:

My code uses the annotation @Data, which generates hashCode and ToString methods and this structure leads to Hibernate stuck. in my case I just added the exclusion parameters, like @EqualsAndHashCode(exclude=&quot;dependent_list&quot;)

huangapple
  • 本文由 发表于 2020年8月1日 06:15:58
  • 转载请务必保留本文链接：https://go.coder-hub.com/63199764.html
  • java
  • spring-boot
  • spring-security
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