Java Community | Help. Code. Learn.•2y ago

RequestParam / User Not Found

Hello again guys,

I'd like to render my data user on a template with the GET method. I made sure my page was created and my datas are persisted in my db.

I tried to render my data through the email user as it's shown below and I want my URL to be like this :

http://localhost:8080/profile?email=test@test.com

http://localhost:8080/profile?email=test@test.com

http://localhost:8080/profile?email=test@test.com

http://localhost:8080/profile?email=test@test.com ( which works perfectly if I write this in my browser bar ) but when I want to access to my profile it return me a USer nto found, because Spring boot sees it as null

 @GetMapping("/profile")
        public String getUserProfile(Model model, @RequestParam(required = false) String email){
            
            AppUser user = repo.findByEmail(email);
            System.out.println("the email is :" + email);
            if(user != null){
                model.addAttribute("user", user);
            }else{
                model.addAttribute("error", "User not found");
            }

            return "profile";
        }

 @GetMapping("/profile")
        public String getUserProfile(Model model, @RequestParam(required = false) String email){
            
            AppUser user = repo.findByEmail(email);
            System.out.println("the email is :" + email);
            if(user != null){
                model.addAttribute("user", user);
            }else{
                model.addAttribute("error", "User not found");
            }

            return "profile";
        }

 @GetMapping("/profile")
        public String getUserProfile(Model model, @RequestParam(required = false) String email){
            
            AppUser user = repo.findByEmail(email);
            System.out.println("the email is :" + email);
            if(user != null){
                model.addAttribute("user", user);
            }else{
                model.addAttribute("error", "User not found");
            }

            return "profile";
        }

 @GetMapping("/profile")
        public String getUserProfile(Model model, @RequestParam(required = false) String email){
            
            AppUser user = repo.findByEmail(email);
            System.out.println("the email is :" + email);
            if(user != null){
                model.addAttribute("user", user);
            }else{
                model.addAttribute("error", "User not found");
            }

            return "profile";
        }

JavaBot•7/29/24, 9:41 PM

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JavaBot•7/30/24, 2:50 AM

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Peter Rader•7/30/24, 7:29 AM

Does it work if you use @RequestParam(required = false, name = "email")@RequestParam(required = false, name = "email") ? The the javac-compiler miss the -parameter-parameter flag. See https://docs.oracle.com/en/java/javase/17/docs/specs/man/javac.html

JavaBot•7/30/24, 12:40 PM

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PPeter Rader Does it work if you use `@RequestParam(required = false, name = "email")` ? The ...

SungOP•7/30/24, 4:46 PM

Unfortunately, I have tried this one, but it didn't work, it's seen as null

SSung Unfortunately, I have tried this one, but it didn't work, it's seen as null

Peter Rader•7/30/24, 5:01 PM

What have you tried? The modification of the Annotation or the -parameter flag?

PPeter Rader What have you tried? The modification of the Annotation or the -parameter flag?

SungOP•7/30/24, 5:06 PM

The @RequestParam(required = false, name = "email") @RequestParam(required = false, name = "email") . I'm currently looking for an article about retrieving my query parameter but I still didn't find the solution.

But as I said, oddly I can get my mail if I write the whole query in my URL

http://localhost:8080/profile?email=test@test.com

http://localhost:8080/profile?email=test@test.com

like this, then it returns the data I want

Peter Rader•7/30/24, 5:08 PM

But you can not get the email when you access your profile, right?

PPeter Rader But you can not get the email when you access your profile, right?

SungOP•7/30/24, 5:18 PM

Well actually, I didn't build anything yet in my profile page but when I write the whole URL, it returns me the name but when I click to access to the profile page it doesn't

SungOP•7/30/24, 5:19 PM

Capture_decran_2024-07-30_a_19.19.11.png

Peter Rader•7/30/24, 7:28 PM

I do not get it. Do you have a profile-page or not?

Peter Rader•7/30/24, 7:33 PM

Hm, there might be a corner-case where https://localhost:8080/profile?email=test@test.comhttps://localhost:8080/profile?email=test@test.com might be parsed as
Domain: https://test.comhttps://test.com
using the username localhostlocalhost and
the password 8080/profile?email=test8080/profile?email=test.

Peter Rader•7/30/24, 7:34 PM

But this might not explain an request to the server without email-parameter

Peter Rader•7/30/24, 7:43 PM

Could you try to urlencode the @@?

PPeter Rader I do not get it. Do you have a profile-page or not?

SungOP•7/30/24, 7:52 PM

I have it but when I click on the profile page it returns me a user not found because the param query is null

SungOP•7/30/24, 7:53 PM

Wait we need to urlencode the special characters ?

SungOP•7/30/24, 8:58 PM

Wait no on this one I think you're wrong because if it wasn't encoded, I couldn't even get a status 200 from my URL as I showed you above

JavaBot•7/31/24, 2:00 AM

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JavaBot•7/31/24, 8:10 AM

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RequestParam / User Not Found

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