休眠会话无法在创建的下一个（新）会话中读取更新的数据

Question

I am using Hibernate and spring in my web-app. On one forms submit i save some data in a table. the same controller that handles the submit redirects the page to another form. ie to another form controller. this form must use some data depending on the data submitted in last form before opening.i create a new hibernate session to fetch data.

but for some reason it is not able to read updated data from the table( it reads old data). I have make sure to commit the transaction (It do save data i have checked in data base.) I also made sure to close session.

I create a new session for each request and close this session, before moving back to view.

Why hibernate is not able to read new data?

Answer 1

Initially i believed its cache problem but since second level cache is not applied and session is new in new form so first level cache is also not a problem.

what exactly is the problem is still a mystery but i got a work-around

i added following property in my configuration with value 2

"hibernate.connection.isolation"

It fixed my problem. but More details about it is welcome as I am not clear what is this about.