Get requested value(URL) when using @RequestMapping annotations

Question

When I map multiple values to @RequestMapping(like Multiple Spring @RequestMapping annotations), can I get the requested value(URL)?

Like this:

@RequestMapping(value={"/center", "/left"}, method=RequestMethod.GET)
public String getCenter(Model model) throws Exception {     
    String requestedValue = getRequestedValue();  // I want this.

    // I want to do something like this with requested value.
    String result; 
    if (requestedValue.equals("center")
        result = "center";
    else if (requestedValue.equals("left")
        result = "left";
    return result;
}

As a newbie, I'm wondering is how "Model model" value is received from GET request, because Get mapping accepts only Url and some headers from UI. Can you tell me the reaon? — EnthuCoder, Jun 10 '23 at 18:47

score 19 · Answer 1 · edited Jul 05 '21 at 09:15

19

You can have the Request (HttpServletRequest) itself as an parameter of the handler method. So you can then inspect the request url to get the "value".

@RequestMapping(value={"/center", "/left"}, method=RequestMethod.GET)
public String getCenter(Model model, HttpServletRequest request) throws Exception {             
   String whatYouCallValue = request.getServletPath(); 
   ....

Javadoc: https://docs.oracle.com/javaee/7/api/javax/servlet/http/HttpServletRequest.html#getServletPath--

Btw: if I understand you right, you want to have different urls, not different values.

edited Jul 05 '21 at 09:15

Monil Soni

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6

answered Sep 29 '11 at 05:52

Ralph

118,862
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Thanks it works. I called it values because the name of property is value, but now I think it could be confusing. I'll correct some. – Sanghyun Lee Sep 29 '11 at 07:28

score 6 · Accepted Answer · answered Jan 20 '14 at 06:53

From Spring 3.1.0, you can use URI Template Patterns with Regular Expressions.

@RequestMapping(value={"/{path:[a-z-]+}"}, method=RequestMethod.GET)
public String getCenter(@PathVariable String path) throws Exception {             
    // "path" is what I want
}

score 4 · Answer 3 · answered Nov 28 '17 at 11:09

From Spring 3.1.0, you can use ServletUriComponentsBuilder

@RequestMapping(value={"/center", "/left"}, method=RequestMethod.GET)
    public String getCenter(Model model) throws Exception {     
        UriComponentsBuilder builder = ServletUriComponentsBuilder.fromCurrentRequest();
        String requestedValue = builder.buildAndExpand().getPath();  // I want this.
        System.out.println(requestedValue);
        // I want to do something like this with requested value.
        String result="fail"; 
        if (requestedValue.equals("center"))
            result = "center";
        else if (requestedValue.equals("left"))
            result = "left";
        return result;
    }

This is exactly what I want. i don't want to mess up the API mapping definition with something that is internal. — toddcscar, Jul 31 '19 at 21:29
`ServletUriComponentsBuilder.fromRequest(HttpServletRequest request)` worked fine in interceptor. — Bu Saeed, Apr 28 '21 at 23:31

score 1 · Answer 4 · answered Sep 29 '11 at 05:51

1

Use RequestParam annotation. You can also add a parameter of type HttpServletRequest to your method and then getParameters from that.

answered Sep 29 '11 at 05:51

gkamal

20,777
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It seams that Sangdol mean different urls, not http values. (So his term "values" is a bit confusing) – Ralph Sep 29 '11 at 05:57

score 0 · Answer 5 · answered Dec 11 '16 at 12:02

Addition to the best answer @Hugh_Lee: This method will work for all not mapped requests. If you want to use this method just for two (or several) cases only, e.g. "/center" and "/left", you may do following. Rename "center" to "positionCenter", "left" to "positionLeft" (or add another common word). So the code would be like this:

@RequestMapping(value={"/{path:position+[A-Za-z-]+}"}, method=RequestMethod.GET)
public String getCenter(@PathVariable String path) throws Exception {             
    // "path" is what I want
}

score 0 · Answer 6 · answered May 17 '17 at 12:28

Following regex will make your method to be executed only for the urls /center and /left. And you can get the value with @PathVariable annotation.

@GetMapping("/{path:^center$|^left$}")
public ResponseEntity<?> whatIsThePath(@PathVariable String path){
    // path is either "center" or "left"
}

Get requested value(URL) when using @RequestMapping annotations

6 Answers6