Spring Rest 模板覆盖 Authorization 标头值

Question

I am making rest call like below:

REST_TEMPLATE.exchange(
        external_rest_url,
        HttpMethod.POST,
        new HttpEntity<>(dto, getHeaders()),
        Map.class)

and my headers are as below:

private HttpHeaders getHeaders() {
    HttpHeaders headers = new HttpHeaders();
    headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
    headers.setContentType(MediaType.APPLICATION_JSON);
    headers.set("User-Agent","Spring's RestTemplate");
    headers.set(HttpHeaders.AUTHORIZATION, "some value");
    return headers;
}

when I run my code the header HttpHeaders.AUTHORIZATION is getting replaced with undefined

See request header in snapshot below from network logs:

Do anyone know why spring is behaving like this or specifically spring-web:5.0.5 jar. I tried changing the version of jar as well but result is same.

Springboot version I use is 2.0.x .

Answer 1

you can add an interceptor to your RestTemplate if you need to add the same headers to all requests:

public void sampleHeader(final RestTemplate restTemplate){
    //Add a ClientHttpRequestInterceptor to the RestTemplate
    restTemplate.getInterceptors().add(new ClientHttpRequestInterceptor(){
        @Override
        public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
            request.getHeaders().set(HttpHeaders.AUTHORIZATION, "some value");//Set the header for each request
            return execution.execute(request, body);
        }
    }); 
}