RestTemplate如何添加请求头headers和请求体body

//headers & cookie
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
headers.add("basecret", config.getBasecret());
headers.add("baid", config.getBaid());
List<String> cookies = new ArrayList<>();
cookies.add("COOKIE_USER" + Strings.nullToEmpty(config.getCookie()));
headers.put(HttpHeaders.COOKIE, cookies);

Map<String, Object> paramMap = new HashMap<String, Object>();
Map<String, Object> paramMap = new LinkedHashMap<String, Object>();

MultiValueMap<String, Object> paramMap = new LinkedMultiValueMap<String, Object>();

MultiValueMap<String, Object> paramMap = new LinkedMultiValueMap<String, Object>();
paramMap.add("dt", "20190225");
// 1、使用postForObject请求接口
String result = template.postForObject(url, paramMap, String.class);
// 2、使用postForEntity请求接口
HttpHeaders headers = new HttpHeaders();
HttpEntity<MultiValueMap<String, Object>> httpEntity = new HttpEntity<MultiValueMap<String, Object>>(paramMap,headers);
ResponseEntity<String> response2 = template.postForEntity(url, httpEntity, String.class);
// 3、使用exchange请求接口
ResponseEntity<String> response3 = template.exchange(url, HttpMethod.POST, httpEntity, String.class);
 

RestTemplate restTemplate2 = new RestTemplate();
String url = "http://127.0.0.1:8081/interact/getData?dt={dt}&ht={ht}";
// 封装参数，这里是HashMap
Map<String, Object> paramMap = new HashMap<String, Object>();
paramMap.put("dt", "20190225");
paramMap.put("ht", "10");
//1、使用getForObject请求接口
String result1 = template.getForObject(url, String.class, paramMap);
System.out.println("result1====================" + result1);
//2、使用exchange请求接口
HttpHeaders headers = new HttpHeaders();
headers.set("id", "lidy");
HttpEntity<MultiValueMap<String, Object>> httpEntity = new HttpEntity<MultiValueMap<String, Object>>(null,headers);
ResponseEntity<String> response2 = template.exchange(url, HttpMethod.GET, httpEntity, String.class,paramMap);

        //JSONObject userInfo = new JSONObject();
        Map<String, Object> userInfo = Maps.newHashMap();
        userInfo.put("phone", accountForm.getPhone());
        userInfo.put("job", accountForm.getJob());
        userInfo.put("email", accountForm.getEmail());
        Map<String, Object> postBody = Maps.newHashMap();
        postBody.put("userInfo", userInfo);
        HttpEntity<Map> requestEntity = new HttpEntity<>(postBody, headers);
         try {
             ResponseEntity<String> result = restTemplate.postForEntity(config.getCreateWithAuthUrl(), requestEntity, String.class);
             JsonNode jsonNode = JsonUtils.toJsonNode(result.getBody());
             if (jsonNode.get("errno").asInt() == 200 || jsonNode.get("errno").asInt() == 505) {
                 return true;
             }
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }

        ResponseEntity<String> responseEntity = null;
        try {
            restTemplate.postForEntity("http://localhost:1111/test", null, String.class);
        } catch (HttpStatusCodeException e) {
            e.getStatusCode();
            e.getResponseBodyAsString();
            e.getResponseHeaders();
        }