method works but returns not found error

Question

I requested method and see how it runs but get 404 error

@RequestMapping(method = RequestMethod.GET)
public User getUser(@RequestHeader(value="Access-key") String accessKey,
                    @RequestHeader(value="Secret-key") String secretKey){
        User u = this.userService.chkCredentials(accessKey, secretKey);
        System.out.println(u.toString());
        return u;
}

I can see results in System.out.print() and then something happens and return statement don't returns object.

The stack trace is,

WARN : org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/WEB-INF/views/user.jsp] in DispatcherServlet with name 'appServlet'.

But all other methods convert object into JSON and returns it

@TimBiegeleisen I haven't any jsp object but other methods returns json without any additional settings — user3378876, Jul 28 '15 at 01:42

score 0 · Answer 1 · answered Jul 28 '15 at 01:38

0

The return value of the method is to point a view. The error message indicates that the controller cannot find view corresponding the User object. Documentation here: http://docs.spring.io/spring/docs/current/spring-framework-reference/html/mvc.html

answered Jul 28 '15 at 01:38

suztomo

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But I don't need pointing to view I want get json and other methods returns it – user3378876 Jul 28 '15 at 01:48
I found this example. Can you try ResponseBody annotation? http://www.mkyong.com/spring-mvc/spring-3-mvc-and-json-example/ – suztomo Jul 28 '15 at 01:52
now I got 500 error, and System.out.print() still working – user3378876 Jul 28 '15 at 02:12
Can you check jackson library in classpath? – suztomo Jul 28 '15 at 02:15
yes, Jackson is there – user3378876 Jul 28 '15 at 02:18
Do you see any error message? – suztomo Jul 28 '15 at 02:39
No, there is no messages. println and then [28/07/2015:02:27:22 +0000] "GET /user HTTP/1.1" 500 – user3378876 Jul 28 '15 at 02:56
I see. How about messages in the web browser? – suztomo Jul 28 '15 at 02:59
no, the same situation – user3378876 Jul 28 '15 at 03:02
Then it's better to focus on changing your web server's debug level or verbosity. As other folks say, having stack trace is helpful to troubleshoot many issues. (The methology is beyond this topic) – suztomo Jul 28 '15 at 03:07

method works but returns not found error

1 Answers1