Java Spring MVC application accepts POST requests only with trailing slash

Question

I have a spring MVC application with following details

war file name is forms.war. url pattern in web.xml is"/"
Controller action's @RequestMapping is "/"
RequestMethod.GET actions work properly if localhost:8080/forms is hit
RequestMethod.POST actions not triggered if the post data is hit against localhost:8080/forms
The POST requests gives a 302 redirect
When I hit localhost:8080/forms/ the POST requests work properly

Any solution to make POST request work without trailing slash?

Here is the code I used to test the POST api:

public class HttpPostExample {
    public static void main(String[] args) {
        HttpClient httpClient = HttpClientBuilder.create().build();
        try {

            HttpPost request = new HttpPost("http://localhost:8080/forms");
            StringEntity params =new StringEntity("{\"form_url\":\"admin\",\"website\":\"US_WEBSITE\",\"email\":\"[email protected]\",\"cis_name\":\"testscrip1\"} ");
            request.addHeader("content-type", "application/x-www-form-urlencoded");
            request.setEntity(params);
            HttpResponse response = httpClient.execute(request);

            System.out.println("Printing the response code " + response.getStatusLine().getStatusCode());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Changing the url to /forms/ works for POST request but not /forms

probably the difference its because in the GET request you are not sending parameters, so doesnt mind you add or not the slash, but in the POST you will add some parameters, and you need to add a proper URL action to attach all parameters — cralfaro
Possible duplicate of How do I map Spring MVC controller to a uri with and without trailing slash? — john16384
You can control this behavior globally by using org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.setUseTrailingSlashMatch(boolean). Have you set this to false somewhere? — Ansgar Schulte
@cralfaro here is the controller code <code> \@Controller public class JSONController { \@RequestMapping(value="/",method = RequestMethod.GET) public \@ResponseBody String handleGET(HttpServletRequest request) { } \@RequestMapping(value="/",method = RequestMethod.POST) public \@ResponseBody String handlePOST(HttpServletRequest request) { } } </code> — Elavarasu Pandiyan

john16384 john16384 · Accepted Answer · 2017-03-13T12:31:47

Change @RequestMapping to either no mapping (so don't put a value at all not even "/") or to "/*".

Java Spring MVC application accepts POST requests only with trailing slash

1 Answers