Question

当我使用OSIVFilter时;我得到错误xD 这是过滤器代码;

  Session session= HibernaterUtil.getCurrentSession();
    Transaction tx=session.beginTransaction();
    try{
        doFilter(servletRequest,servletResponse,filterChain);
        tx.commit();
    }catch(Exception e){
        e.printStackTrace();
        throw new RuntimeException(e.getMessage());
    }finally {
        HibernaterUtil.closeCurrentSession();
    }

这是如何使用ThreadLocal在HibernateUtil.class中获取CurrentSession;

   public static Session getCurrentSession() {

    Session session = (Session) threadlocal.get();
    if (session == null) {
        session = sessionFactory.openSession();
        threadlocal.set(session);
    }
    return session;
}

但最终只是得到了这个错误

org.hibernate.TransactionException: nested transactions not supported
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:154)
at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1471)
at com.hjy.filter.MyFilter.doFilter(MyFilter.java:26)
at com.hjy.filter.MyFilter.doFilter(MyFilter.java:28)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:876)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:612)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1777)
at java.lang.Thread.run(Thread.java:745)

我是hibernate的新手，任何人都可以告诉我如何解决它;

Answer 1

如果＆＃34中有例外，请尝试抓住＆＃34;阻止异常的catch块中没有rollback

你应该写下来：

Session session= HibernaterUtil.getCurrentSession();
Transaction tx=session.beginTransaction();
try{
    doFilter(servletRequest,servletResponse,filterChain);
    tx.commit();
}catch(Exception e){
    tx.rollback();
    e.printStackTrace();
    throw new RuntimeException(e.getMessage());
}finally {
    HibernaterUtil.closeCurrentSession();
}

您还应该检查HibernaterUtil.closeCurrentSession()方法threadlocal中是否已清除。

Hibernate错误：不支持嵌套事务

1 个答案: