CODEWITHSUNDEEP
javaspringspring-mvc
Evgeni Dimitrov
Evgeni Dimitrov

Reputation: 22506

SpringMVC RequestMapping for GET parameters

How to make the RequestMapping to handle GET parameters in the url? For example i have this url

http://localhost:8080/userGrid?_search=false&nd=1351972571018&rows=10&page=1&sidx=id&sord=desc

(from jqGrid)

how should my RequestMapping look like? I want to get the parameters using HttpReqest

Tried this:

@RequestMapping("/userGrid")
    public @ResponseBody GridModel getUsersForGrid(HttpServletRequest request)

but it doesn't work.

Upvotes: 71

Views: 208885

Answers (6)

ElderMael
ElderMael

Reputation: 7101

Use @RequestParam in your method arguments so Spring can bind them, also use the @RequestMapping.params array to narrow the method that will be used by spring. Sample code:

@RequestMapping("/userGrid", 
params = {"_search", "nd", "rows", "page", "sidx", "sort"})
public @ResponseBody GridModel getUsersForGrid(
@RequestParam(value = "_search") String search, 
@RequestParam(value = "nd") int nd, 
@RequestParam(value = "rows") int rows, 
@RequestParam(value = "page") int page, 
@RequestParam(value = "sidx") int sidx, 
@RequestParam(value = "sort") Sort sort) {
// Stuff here
}

This way Spring will only execute this method if ALL PARAMETERS are present saving you from null checking and related stuff.

Upvotes: 134

Kirill
Kirill

Reputation: 6016

This works in my case:

@RequestMapping(value = "/savedata",
            params = {"textArea", "localKey", "localFile"})
    @ResponseBody
    public void saveData(@RequestParam(value = "textArea") String textArea,
                         @RequestParam(value = "localKey") String localKey,
                         @RequestParam(value = "localFile") String localFile) {
}

Upvotes: 2

Amanuel Nega
Amanuel Nega

Reputation: 1977

If you are willing to change your uri, you could also use PathVariable.

@RequestMapping(value="/mapping/foo/{foo}/{bar}", method=RequestMethod.GET)
public String process(@PathVariable String foo,@PathVariable String bar) {
    //Perform logic with foo and bar
}

NB: The first foo is part of the path, the second one is the PathVariable

Upvotes: 7

Mircea Stanciu
Mircea Stanciu

Reputation: 3753

This will get ALL parameters from the request. For Debugging purposes only:

@RequestMapping (value = "/promote", method = {RequestMethod.POST, RequestMethod.GET})
public ModelAndView renderPromotePage (HttpServletRequest request) {
    Map<String, String[]> parameters = request.getParameterMap();

    for(String key : parameters.keySet()) {
        System.out.println(key);
        String[] vals = parameters.get(key);
        for(String val : vals)
            System.out.println(" -> " + val);
    }

    ModelAndView mv = new ModelAndView();
    mv.setViewName("test");
    return mv;
}

Upvotes: 18

Reimeus
Reimeus

Reputation: 159754

You can add @RequestMapping like so:

@RequestMapping("/userGrid")
public @ResponseBody GridModel getUsersForGrid(
   @RequestParam("_search") String search,
   @RequestParam String nd,
   @RequestParam int rows,
   @RequestParam int page,
   @RequestParam String sidx) 
   @RequestParam String sord) {

Upvotes: 32

AlexR
AlexR

Reputation: 115328

You should write a kind of template into the @RequestMapping:

http://localhost:8080/userGrid?_search=${search}&nd=${nd}&rows=${rows}&page=${page}&sidx=${sidx}&sord=${sord}

Now define your business method like following:

@RequestMapping("/userGrid?_search=${search}&nd=${nd}&rows=${rows}&page=${page}&sidx=${sidx}&sord=${sord}")
public @ResponseBody GridModel getUsersForGrid(
@RequestParam(value = "search") String search, 
@RequestParam(value = "nd") int nd, 
@RequestParam(value = "rows") int rows, 
@RequestParam(value = "page") int page, 
@RequestParam(value = "sidx") int sidx, 
@RequestParam(value = "sort") Sort sort) {
...............
}

So, framework will map ${foo} to appropriate @RequestParam.

Since sort may be either asc or desc I'd define it as a enum:

public enum Sort {
    asc, desc
}

Spring deals with enums very well.

Upvotes: 0

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