CODEWITHSUNDEEP
javaspringspring-mvc
YanetP1988
YanetP1988

Reputation: 1356

Spring Get all params from URL in Controller

I have in front end a form where the user selects the year and one or more months from a list of months. These params will be sent to Controller as Get Method. Given an URL like this:

..../{year}/{months}/excel/

Where months would be a variable list of the months selected, i.e [01,02,10].

How I receive all parameters in the Controller? Here's my controller so far:

    @RequestMapping(value = "/{year}/{months}/excel/", method = RequestMethod.GET, produces = EXCEL_FORMAT_HEADER)
    public @ResponseBody
    ModelAndView getRankingByYearExcel(@PathVariable("year") Integer year,
                                       @RequestParam Map<String, Object> months)
 {...}

Upvotes: 3

Views: 2730

Answers (3)

YanetP1988
YanetP1988

Reputation: 1356

I did it like this and worked, declaring months as array of Strings:

@RequestMapping(value = "/{year}/excel/", method = RequestMethod.GET, produces = EXCEL_FORMAT_HEADER)
public @ResponseBody
ModelAndView getRankingByYearExcel(@PathVariable("year") Integer year,
                                   @RequestParam String[] months)

And in URL sent variable months as array of strings:

../2016/excel/?months=1,3,12

Thanks for guiding me in this direction

Upvotes: 3

c-an
c-an

Reputation: 4120

Here is how you bind all URI template variable to Map and use.

First of all, You need to change @RequesetParam to @PathVariable

example1:

@RequestMapping("{id}/messages/{msgId}")
public String handleRequest4 (@PathVariable Map<String, String> varsMap, Model model) {
    model.addAttribute("msg", varsMap.toString());
    return "my-page";
}

example2:

@GetMapping("/request4/{name}/{age}/address/{city}/{country}")
@ResponseBody
public String handler(@PathVariable Map<String, String> params) {
   StringBuilder builder = new StringBuilder();
   builder.append("URL parameters - <br>");
   for (Entry<String, String> entry : params.entrySet()) {
      builder.append(entry.getKey() + " = " + entry.getValue() + "<br>");
   }
   return builder.toString();
}

For more information see doc1 or see doc2

Upvotes: 2

Raghuram Kasyap
Raghuram Kasyap

Reputation: 315

I would change the @RequestParam Map<String, Object> months to @RequestParam String months You can then split the months based on comma.

String[] monthsList = months.split(",");

The monthsList array will have all the user selected values.

Upvotes: 2

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