RestTemplate restTemplate = new RestTemplate();

// 創(chuàng)建請(qǐng)求體
List<NameValuePair> params = new ArraysList<>();
params.add(new BasicNameValuePair("name","張三"));
params.add(new BasicNameValuePair("age","15"));
//....... 設(shè)置大量?jī)?nèi)容

// 設(shè)置請(qǐng)求頭
HttpHeaders headers = new HttpHeaders();

// 創(chuàng)建HttpEntity對(duì)象
HttpEntity<String> httpEntity = new HttpEntity<>(null,headers);
URI uri = URI.create(url);
if(!CollectionUtils.isEmpty(params)){
	String param = URLEncodedUtils.format(params, StandardCharsets.UTF_8);
	uri = URI.create(url+"?"+param);
}
// 發(fā)送POST請(qǐng)求
String response = restTemplate.exchange(uri, HttpMethod.POST, httpEntity , String.class).getBody();

RestTemplate restTemplate = new RestTemplate();

HttpHeaders headers = new HttpHeaders();
// 設(shè)置內(nèi)容類型為 application/x-www-form-urlencoded
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);

// 使用 MultiValueMap 存放表單數(shù)據(jù)
MultiValueMap<String, String> formData = new LinkedMultiValueMap<>();
formData.add("key1", "value1");
formData.add("key2", "value2");
// ... 可以添加很多對(duì)，只要不超出服務(wù)器對(duì)Body大小的通常寬松限制

HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<>(formData, headers);

ResponseEntity<String> response = restTemplate.postForEntity(
    "http://your-api-endpoint.com/api/resource", 
    requestEntity, 
    String.class
);

RestTemplate restTemplate = new RestTemplate();

// 創(chuàng)建請(qǐng)求體
List<NameValuePair> params = new ArraysList<>();
params.add(new BasicNameValuePair("name","張三"));
params.add(new BasicNameValuePair("age","15"));
//....... 設(shè)置大量?jī)?nèi)容

// 設(shè)置請(qǐng)求頭
HttpHeaders headers = new HttpHeaders();

// 創(chuàng)建HttpEntity對(duì)象
HttpEntity<String> httpEntity = new HttpEntity<>(null,headers);
URI uri = URI.create(url);
if(!CollectionUtils.isEmpty(params)){
	String param = URLEncodedUtils.format(params, StandardCharsets.UTF_8);
	uri = URI.create(url+"?"+param);
}
// 發(fā)送POST請(qǐng)求
String response = restTemplate.exchange(uri, HttpMethod.POST, httpEntity , String.class).getBody();