如何添加自定义标题<String, Integer>到 Spring Boot HttpHeaders？

Question

Currently Spring Boot HttpHeaders header only takes <String, String> pairs. How can I add a header with <String, Long> ?

I need to integrate with one of the external product API in my Java Program, to access this API, it needs a token header which for this product, all of its APIs only takes Numbers(long). It is so out of ordinary and it gives me a lot headache. I am using RestTemplate and I've searched a lot place with no luck.

Did any of you have done anything similar to this? Need some help.

Answer 1

You can create generic header using MultiValueMap that accepts String as key and Object as value

MultiValueMap<String, Object> map = new LinkedMultiValueMap<>();
map.add("Header1", 11111);

And then create generic HttpEntity of object type by passing MultiValueMap as headers

HttpEntity<Object> entity = new HttpEntity<>(map);

System.out.println(entity);