Spring 5 Design Patterns

Taking query parameters

In a web application, we can fetch the request parameters from the request-the account ID in our example if you want to access the details of a particular account. Let's fetch the account ID from the request parameter using the following code:

    @Controller 
    public class AccountController { 
      @GetMapping(value = "/account") 
      public String getAccountDetails (ModelMap model, HttpServletRequest request){ 
         String accountId = request.getParameter("accountId"); 
         Account account = accountService.findOne(Long.valueOf(accountId)); 
         model.put("account", account); 
         return "accountDetails"; 
     } 
    }  

In the preceding code snippet, I have used the traditional way to access the request parameters. The Spring MVC framework provides an annotation, ...