Question

我将Hibernate与wildfly 10.0.1一起使用。我的交易是Container managed Transaction。

更新条目时，我经常会[1] OptimisticLockException 。如何在CMT中处理此异常？为什么我的野蝇管理得不好？我是否需要添加任何应用程序级逻辑？

[1]

javax.persistence.OptimisticLockException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1

的persistence.xml

<persistence-unit name="apidb-persistence-unit"
        transaction-type="JTA">

        <description>Forge Persistence Unit</description>
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>java:jboss/datasources/lobDS</jta-data-source>     
   <class>xx.core.model.base.CRMEntity</class>
        <class>xx.model.base.Company</class>
..
 <properties>
            <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
            <property name="javax.persistence.jdbc.user" value="admin" />
            <property name="javax.persistence.jdbc.password" value="ss_password" />

            <!-- Scan for annotated classes and Hibernate mapping XML files -->
            <property name="hibernate.archive.autodetection" value="class, hbm" />
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
            <property name="hibernate.show_sql" value="false" />
            <property name="hibernate.hbm2ddl.auto" value="" />
            <property name="hibernate.enable_lazy_load_no_trans" value="true" />
            <property name="jboss.as.jpa.providerModule" value="org.hibernate:5.2" /> 
            <property name="hibernate.connection.provider_class" value="com.zaxxer.hikari.hibernate.HikariConnectionProvider" />
            <property name="hibernate.hikari.minimumIdle" value="5" /> 
            <property name="hibernate.hikari.maximumPoolSize" value="500" /> 
            <property name="hibernate.hikari.idleTimeout" value="30000" /> 
            <property name="hibernate.hikari.dataSourceClassName" value="com.mysql.jdbc.jdbc2.optional.MysqlDataSource" /> 
                <property name="hibernate.hikari.dataSource.url" value="jdbc:mysql://localhost:3306/rathadb" /> 
<property name="hibernate.hikari.dataSource.user" value="XX" /> 
<property name="hibernate.hikari.dataSource.password" value="XX" /> 
            <property name="hibernate.hikari.dataSource.cachePrepStmts" value="true" />
            <property name="hibernate.hikari.dataSource.prepStmtCacheSize" value="1000" />
            <property name="hibernate.hikari.dataSource.prepStmtCacheSqlLimit" value="2048" />

            <property name="hibernate.cache.use_second_level_cache" value="true"/>
            <property name="hibernate.discriminator.ignore_explicit_for_joined" value="true" />

如何在Container managedTransaction中处理OptimisticLockException？

0 个答案: