一、Get 服務(wù)消費(fèi)
(1) getForEntity
1. URI restTemplate
UriComponents components = UriComponentsBuilder.fromUriString("http://HELLO-SERVICE/hello?name={name}").build().expand("grandkai").encode("utf-8");
URI uri = components.toUri();
ResponseEntity<String> entity = restTemplate.getForEntity(uri, String.class);


2. restTemplate.getForEntity(String url, Class responseType, Map urlVariables)
Map<String, String> param = new HashMap<>();
param.put("name", "GrandKai");
restTemplate.getForEntity("http://HELLO-SERVICE/hello?name={name}", String.class, param).getBody();

3. restTemplate.getForEntity(String url, Class responseType, String... urlVariables)
return restTemplate.getForEntity("http://HELLO-SERVICE/hello?name={1}", String.class, "grandkai").getBody();

(2) getForObject
重載方法同 getForEntity 是對它的進(jìn)一步封裝，只關(guān)心 body 內(nèi)容

二、Post 請求
1. postForEntity
2. postForObject
3. postForLocation
三、Put 請求
四、Delete 請求