Spring Rest-设置没有请求主体的标题

Question

I need to set an authorization header in the REST call in my client, but the web service doesn't expect a request body. How would I send this?

Right now I have this, which I know is wrong:

HttpEntity<String> response = new HttpEntity<String>(authToken, headers);
restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
TransactionResponse transactionResponse = restTemplate.postForObject(uri, response, TransactionResponse.class);
return transactionResponse;

Answer 1

To add the authentication header, can't you just add it to the headers?

headers.add("Authentication", authToken);

I think (but have not tried) that you could give the type parameter for the entity as Void :

HttpEntity<Void> response = new HttpEntity<>(null, headers);

Bear in mind that the actual header name needed might be different from the one I used above.