Request processing failed; nested exception is java.lang.NullPointerException

Question

i created a form and on post i want to save those values to the database and show the saved values on the page.
i am new to spring mvc and hence i am not understanding w

Answer 1

Seems to be a problem in your form. At least, the inputs must be given the name attributes:

 

     Cust_Id :
     
     


     Name :
     
     


     Age :
     

     
 

But since you are using Spring, it is preferable to use the Spring forms (and spring url's also):

    Id:
     


    Name:
     


    Age:
     


        

Edit And you should initialize dao!

@Autowired
private CustomerDao dao;