如何从URL springmvc获取ID

Question

Working in application with spring mvc . I have to add questions for exams. when i choose the exam my link is like this :

     localhost:7070/elearning/expert/ajouterQuestionExam?idExam=1 

now i don't know how to get this id from url to use it in: metier.ajouterQuestion(q,IdExam);

Answer 1

You can use the @RequestParam annotation to map a request parameter to a parameter in your request method. Read the Spring Framework Reference Documentation Chapter 21 - Web MVC framework and search for:

"Use the @RequestParam annotation to bind request parameters"

for an explanation, including examples. There are probably other ways too.

In fact, if you are serious about learning Spring MVC, you ought to read (or at least, skim read) all of Chapter 21.