This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I have yet been able to insert a record into a table using the Entitymanager. Everytime I use the persist method I get a null pointer exception. I have a person entity with id(auto incrememted), name, job, salary,description, countyId(foreign key) in a MySql table call Person. My servlet creates a Manager class and passes in parameters submitted representing Person information.
The manager class looks like this:
The PersonFacade class i am using is a netbeans generated session bean:
and AbstractFacade is as follows:
edit: Person entity class
I can read person entries from the database using the personFacades findAll() method but I can't write to it using the create() method without a null pointer exception showing up. All the objects I use are not pointing to a null reference so I can't get my head around it! I have seen examples all over the net that use the persist method. Could someone please help?