@SpringQueryMap doesn't support Map<String, String[]>

Describe the bug @SpringQueryMap doesn’t support Map<String, String[]>

Sample

@FeignClient(name = "postman-echo", url = "https://postman-echo.com")
public interface PostmanEchoClient {
  @GetMapping(path = "/get")
  Object get(@SpringQueryMap Map<String, String[]> paramMap);
}

Test

Map<String, String[]> paramMap = new HashMap<>(2);
paramMap.put("a", new String[] {"a1", "a2"});
paramMap.put("b", new String[] {"b1", "b2"});

postmanEchoClient.get(paramMap);

Generated url: https://postman-echo.com/get?a=%5BLjava.lang.String%3B%405ed08faf&b=%5BLjava.lang.String%3B%4075386aa2 Expected url: https://postman-echo.com/get?a=a1&a=a2&b=b1&b=b2

Issue Analytics

State:
Created 4 years ago
Comments:9 (2 by maintainers)

Top GitHub Comments

1reaction

Junhyunnycommented, Feb 9, 2020

@linianhui, here is my example. You can see the result what you want in log when you use List instead of array.

link - https://github.com/Junhyunny/openfeign-test test - curl localhost:8080/testList

@spencergibb I found out other problem in my example. RequestParam is {a=a1, b=b1}. I expect RequestParam {a=[a1, a2], b=[b1,b2]}. What do you think of this? Is it bug?

0reactions

spencergibbcommented, Mar 2, 2020

Closing in favor of https://github.com/OpenFeign/feign/issues/1170

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