Spring MVC HIbernate HIbernate版本-HIbernate-core-5.2.10最终版本

Question

欢迎使用Spring MVC+Hibernate。以前我使用hibernate core-5.1.0 Final Than Session。createCriteria()运行良好。但现在它被弃用了

所以我开始使用hibernate-core-5.2.10.Final。我学会了如何使用session.getCriteriaBuilder()及其工作原理。

但问题是我不知道如何在使用hibernate-core-5.2.10.Final后在数据库中插入更新。以前当我使用hibernate core-5..1.0.Final时，我可以通过使用session.save()轻松插入更新；session.flush()；session.close()；

但是现在当我使用session.save()时；session.flush()；session.close()；使用hibernate-core-5.2.10最终我收到此错误消息：--

HTTP状态500-请求处理失败；嵌套异常为javax.persistence.TransactionRequiredException：中没有事务进度

我的代码是这样的：

public class UsersDAOImpl implements UsersDAO  {
private static SessionFactory factory ;
public String registerUser(String userEmailOruserName,String userPassword)
{

factory = new Configuration().configure().buildSessionFactory();
Session session = factory.openSession();
Users us = new Users();
us.setUserEmailOruserName(userEmailOruserName);
us.setUserPassword(userPassword);
try
{
session.save(us);
}
catch(HibernateException he)
{
return "Error";
}

session.flush();
session.close();

return "Sucessfull" ;


}

控制台错误消息：-

HTTP Status 500 - Request processing failed; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress

Oct 23, 2017 1:42:10 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/MaharashtraMeinJobDhundho] threw exception [Request processing failed; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress] with root cause
javax.persistence.TransactionRequiredException: no transaction is in progress
at org.hibernate.internal.SessionImpl.checkTransactionNeeded(SessionImpl.java:3461)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1425)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1421)
at com.programcreek.MaharashtraMeinJobDhundho.DAO.UsersDAOImpl.registerUser(UsersDAOImpl.java:58)
at com.programcreek.MaharashtraMeinJobDhundho.Controller.RegisterUserController.registerUser(RegisterUserController.java:31)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)

请告诉我如何使用hibinate-core-5.2.10.Final在数据库中插入更新。我读了很多文章如何做到这一点，但无法实现

Answer 1

您的异常表明您正在保存/更新没有活动事务的记录。

尝试这样的东西。

try{
Session session = factory.openSession();
Transaction tx = session.beginTransaction();  
session.save(us);
tx.commit(); 
}
catch(){
}