java - Thread partiel SessionException : la session est fermée lorsque Hibernate ajoute une opération dans des conditions de concurrence élevée.
Servlet + hibernate provoquera org.hibernate.SessionException : la session est fermée dans certains threads dans des conditions de concurrence élevée, mais cela ne se produira pas dans des conditions à thread unique.
org.hibernate.SessionException: Session is closed!
at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:72)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1466)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:345)
at com.sun.proxy.$Proxy6.beginTransaction(Unknown Source)
at cn.com.thit.pis.usermanager.dao.BaseDAO.queryByMainKey(BaseDAO.java:136)
at cn.com.thit.pis.usermanager.service.PhoneService.Register(PhoneService.java:137)
at cn.com.thit.pis.usermanager.servlet.Register.doGet(Register.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)BaseDAO.java
public UserEntity queryByMainKey(long phone) {
int retry = 0;
entity = new UserEntity();
session = factory.getCurrentSession();
transaction = session.beginTransaction();
while (retry++ < 3) {
try {
//if(!session.isOpen()) session.beginTransaction();
Query q = session.createQuery("from UserEntity where phone=?");
q.setLong(0, phone);
if (q.list() == null || q.list().size() == 0) {
return null;
}
entity.Clone((UserEntity) q.list().get(0));
return entity;
} catch (Exception e) {
e.printStackTrace();
continue;
}
}
return null;
}
