Hibernate session.flush 抛出 java.lang.StackOverflowError

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如何解决Hibernate session.flush 抛出 java.lang.StackOverflowError？

开发过程中遇到Hibernate session.flush 抛出 java.lang.StackOverflowError的问题如何解决？下面主要结合日常开发的经验，给出你关于Hibernate session.flush 抛出 java.lang.StackOverflowError的解决方法建议，希望对你解决Hibernate session.flush 抛出 java.lang.StackOverflowError有所启发或帮助；

我使用的是 Hibernate 4.3.8。 Oracle 12.1.0.2.0 版。

我有两个实体名称作为子实体和父实体。 他们基本上是加入的实体。

出于性能原因，我们正在使用 Hibernate 批处理属性，但是当它尝试将记录保存在子实体中时，它会引发 StackOverflowError。 休眠批处理属性：

<property name="hibernate.jdbc.batch_size">100</property> 
 <property name="hibernate.jdbc.batch_versioned_data">true</property>
 <property name="hibernate.order_inserts">true</property>
 <property name="hibernate.order_updates">true</property>

子实体 HBM

<hibernate-mapPing>
<class entity-name="ChildEntity_name" table="ChildEntity_DB" dynamic-insert="true" dynamic-update="true">
    <ID name="ID" type="java.lang.Long" column="ID">
        <generator class="native"/>
    </ID>
    <version name="RevisionID" access="fIEld" column="RevisionID" type="java.lang.Long" unsaved-value="undefined" generated="never"/>
    <property name="ModifIEdUser" type="java.lang.String" column="ModifIEdUser"/>
    <property name="Dealname_db" type="java.lang.String" column="Dealname_db"/>
    <property name="@R_482_10586@lPrice_db" type="java.lang.Long" column="@R_482_10586@lPrice_db"/>
    <property name="DealDate_db" type="java.lang.String" column="DealDate_db"/>
    <property name="ModifIEdDate" type="java.util.Date" column="ModifIEdDate"/>
    <property name="CreatedUser" type="java.lang.String" column="CreatedUser"/>
    <property name="CreatedDate" type="java.util.Date" column="CreatedDate"/>
    <many-to-one name="CE_UK" entity-name="Parent_Entity_name" property-ref="UK_PD1" unique="false" fetch="join" update="true" insert="true">
        <column name="CustID_db" not-null="true"/>
    </many-to-one>
    <propertIEs name="UK_Child" unique="true" insert="true" update="true">
        <property name="DealID_db" type="java.lang.String" column="DealID_db"/>
    </propertIEs>
    
</class>
</hibernate-mapPing>

父实体 HBM：

   <hibernate-mapPing>
<class entity-name="Parent_Entity_name" table="Parent_Entity_DB" dynamic-insert="true" dynamic-update="true" mutable="true" polymorphism="implicit" SELEct-before-update="false" optimistic-lock="version">
    <ID name="ID" type="java.lang.Long" column="ID">
       <generator class="native"/>
    </ID>
    <version name="RevisionID" access="fIEld" column="RevisionID" type="java.lang.Long" unsaved-value="undefined" generated="never"/>
    <property name="ModifIEdUser" type="java.lang.String" column="ModifIEdUser" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    <property name="Custname_db" type="java.lang.String" column="Custname_db" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    <property name="CustAddress_db" type="java.lang.String" column="CustAddress_db" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    <property name="ModifIEdDate" type="java.util.Date" column="ModifIEdDate" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    <property name="CreatedUser" type="java.lang.String" column="CreatedUser" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    <property name="CreatedDate" type="java.util.Date" column="CreatedDate" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    <propertIEs name="UK_PD1" unique="true" insert="true" update="true" optimistic-lock="true">
        <property name="CustID_db" type="java.lang.String" column="CustID_db" unique="false" optimistic-lock="true" lazy="false" generated="never"/>
    </propertIEs>
    </class>
</hibernate-mapPing>

类：

import java.util.HashMap;
import java.util.Map;
import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.transaction;

public class TESTBatching {

    public static voID main(String[] args) {
        Session session = null;
        transaction tx = null;
        try {
            session = HibernateUtil.getSessionFactory().openSession();
            System.out.println("Got the hibernate session ...");
            tx = session.begintransaction();
            System.out.println("opening tx ...");

            Map<String,Object> parentEntitymap = new HashMap();
            

            HashMap uniqueKeymapPing = new java.util.HashMap<>();
            uniqueKeymapPing.put("CustID_db",String.valueOf(1));

            parentEntitymap.put("CustID_db",String.valueOf(1));
            parentEntitymap.put("UK_PD1",uniqueKeymapPing);
            parentEntitymap.put("Custname_db",String.valueOf("John"));
            parentEntitymap.put("CustAddress_db",String.valueOf("Mumbai"));

            parentEntitymap.put("ModifIEdDate",java.sql.timestamp.valueOf("2017-11-15 15:30:14.332"));
            parentEntitymap.put("CreatedDate",java.sql.timestamp.valueOf("2017-11-15 15:30:14.332"));
            parentEntitymap.put("ModifIEdUser",String.valueOf("User1"));
            parentEntitymap.put("CreatedUser",String.valueOf("User1"));

            System.out.println("Saving record in Parent Entity ......");
            session.save("Parent_Entity_name",parentEntitymap);
            System.out.println("Saved record in Parent Entity ......");
            
            
            Map<String,Object> childEntitymap = new HashMap();
            
            HashMap uniqueKeymapPing1 = new java.util.HashMap<>();
            uniqueKeymapPing1.put("DealID_db",String.valueOf(1));
            childEntitymap.put("UK_Child",uniqueKeymapPing1);

            childEntitymap.put("DealID_db",String.valueOf(1));
            childEntitymap.put("CustID_db",String.valueOf(1));

            childEntitymap.put("Dealname_db",String.valueOf("SS"));
            childEntitymap.put("DealDate_db","2017-11-15 15:30:14.332");
            childEntitymap.put("@R_482_10586@lPrice_db",Long.valueOf(100));
            childEntitymap.put("RevisionID",Long.valueOf("1"));

            HashMap fkMapPing = new java.util.HashMap<>();
            fkMapPing.put("CustID_db",String.valueOf(1));
            fkMapPing.put("ID",Long.valueOf("1"));
            fkMapPing.put("UK_PD1",fkMapPing);
            fkMapPing.put("RevisionID",Long.valueOf("1"));

            childEntitymap.put("CE_UK",fkMapPing);

            childEntitymap.put("ModifIEdDate",java.sql.timestamp.valueOf("2017-11-15 15:30:14.332"));
            childEntitymap.put("CreatedDate",java.sql.timestamp.valueOf("2017-11-15 15:30:14.332"));
            childEntitymap.put("ModifIEdUser",String.valueOf("User1"));
            childEntitymap.put("CreatedUser",String.valueOf("User1"));


            System.out.println("Saving record in Child Entity ......");
            session.save("ChildEntity_name",childEntitymap);
            System.out.println("Saved record in Child Entity ......");
            
            System.out.println("Flushing session ......");
            session.flush();
            System.out.println("Flushed session ......");
            
            System.out.println("CommiTing tx ......");
            tx.commit();
            System.out.println("Commited tx ......");

        } catch (Exception E) {
            e.printstacktrace();
        } finally {
            if (session != null) {
                session.close();
                System.out.println(" closing hibernate session ...");
            }
        }

    }

}

休眠配置：

<hibernate-configuration>
    <session-factory>
            
        <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>
        <property name="hibernate.connection.driver_class">Oracle.jdbc.OracleDriver</property>
        <property name="hibernate.connection.url">jdbc:Oracle:thin:@localhost:1521:xe</property>       
        <property name="hibernate.connection.username">user1</property>
        <property name="hibernate.connection.@R_616_5747@d">user1</property>                
                  
           
        <!-- Hibernate caching setTings -->
        <property name="cache.provIDer_class">org.hibernate.cache.NoCacheProvIDer</property>
        <property name="hibernate.cache.use_second_level_cache">false</property>
        
        <!-- Hibernate-c3p0 setTings -->
        <property name="hibernate.c3p0.min_size">2</property>   
        <property name="hibernate.c3p0.max_size">50</property>
        <property name="hibernate.c3p0.acquire_increment">1</property>   
        <property name="hibernate.c3p0.IDle_test_period">100</property>
        <property name="hibernate.c3p0.timeout">100</property>
        <property name="hibernate.c3p0.max_statements">0</property>
        
        <!-- Hibernate-Batching setTings -->
        <property name="hibernate.jdbc.batch_size">100</property> 
        <property name="hibernate.jdbc.batch_versioned_data">true</property>
        <property name="hibernate.order_inserts">true</property>
        <property name="hibernate.order_updates">true</property>
       
       <!-- HBM MapPing files -->
        <mapPing resource="Child_entity.hbm.xml"/>
        <mapPing resource="Parent_entity.hbm.xml"/>

    </session-factory>
</hibernate-configuration>

输出：

Got the hibernate session ...
opening tx ...
Saving record in Parent Entity ......
Saved record in Parent Entity ......
Saving record in Child Entity ......
Saved record in Child Entity ......
Flushing session ......
closing hibernate session ...
Exception in thread "main" java.lang.StackOverflowError
    at java.base/java.lang.Long.hashCode(Long.java:1402)
    at java.base/java.util.objects.hashCode(Objects.java:116)
    at java.base/java.util.HashMap$Node.hashCode(HashMap.java:297)
    at java.base/java.util.AbstractMap.hashCode(AbstractMap.java:527)
    at java.base/java.util.objects.hashCode(Objects.java:116)

注意：如果没有休眠批处理属性，它可以正常工作。

有人可以帮我吗？

解决方法

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