如何在 Spring 启动中的获取映射请求中发送一个字符串列表作为参数，其中包含很多项目？

Question

I have a Spring boot controller with a get request method to be used as Rest API, this one.

The third param, ids , is a String list. Usually it is not a problem, but sometimes this list needs to have more than a six hundreds of items, and it launch an error because length limit on the URI.

@GetMapping("/mhcil/details")
public ResponseEntity findDetails(
        @RequestParam(name = "from")  String from,
        @RequestParam(name = "to")  String to,
        @RequestParam(name = "cil", required = false) List<String> cils,
        @RequestParam(name = "responsetype") ResponseType responseType,
        @NotNull @RequestHeader(value = "Oauth") String token

I tried to move all the parameters to a class, but since is a GET request it doesn't solve the issue with the URI characters limit. I have the patch to change from @RequestParam to a @RequestBody and use a POST or PUT request instead of get, but I will prefer to solve it maintaining the GET request.

I have started thinking of sending a compressed String and then uncompress it in the controller, but I'm not sure about how to do it.

Can anyone provide me a hint about how can I proceed to solve it?

Thanks in advance

Answer 1

You could change the server.max-http-header-size default setting from 8kB to whatever size you need, but i would recommend using POST instead. See: https://stackoverflow.com/a/27950790/3684747