RestTemplate發(fā)送get和post請(qǐng)求,下載文件的實(shí)例

更新時(shí)間：2020年09月29日 10:34:34 作者：xqnode

這篇文章主要介紹了RestTemplate發(fā)送get和post請(qǐng)求,下載文件的實(shí)例，具有很好的參考價(jià)值，希望對(duì)大家有所幫助。一起跟隨小編過(guò)來(lái)看看吧

下圖是我的所有測(cè)試接口，包含兩個(gè)表單提交接口和一個(gè)Rest接口：

我是用的Http請(qǐng)求工具是Spring自帶的RestTemplate。

請(qǐng)求的方法如下：

三個(gè)請(qǐng)求分別對(duì)應(yīng)三個(gè)接口，在此記錄下。

下載文件，獲取文件字節(jié)流：

RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
ResponseEntity<byte[]> entity = restTemplate.exchange("http://ip:port/test.doc", HttpMethod.GET,new HttpEntity<>(headers), byte[].class);
byte[] body = entity.getBody();

multipart/form-data 文件上傳：

RestTemplate restTemplate = new RestTemplate();
String url = "http://127.0.0.1:8080/file/upload"
MultiValueMap<String, Object> multiValueMap = new LinkedMultiValueMap<>();
// 設(shè)置multi/form-data文件
multiValueMap.add("file", new FileSystemResource("D:/1.mp3"));
multiValueMap.add("name", "測(cè)試材料");

// http請(qǐng)求
String response = restTemplate.postForObject(url, multiValueMap, String.class);

補(bǔ)充知識(shí)：restTemplate發(fā)送get與post請(qǐng)求并且?guī)?shù)

我就廢話不多說(shuō)了，大家還是直接看代碼吧~

@Test
 public void test() throws Exception{
 String url = "http://localhost:8081/aa";
 //headers
 HttpHeaders requestHeaders = new HttpHeaders();
 requestHeaders.add("api-version", "1.0");
 //body
 MultiValueMap<String, String> requestBody = new LinkedMultiValueMap<>();
 requestBody.add("id", "1");
 //HttpEntity
 HttpEntity<MultiValueMap> requestEntity = new HttpEntity<MultiValueMap>(requestBody, requestHeaders);
 //post
 ResponseEntity<String> responseEntity = restTemplate.postForEntity(url, requestEntity, String.class);
 System.out.println(responseEntity.getBody());
 
 ResponseEntity<String> responseEntity1 = restTemplate.exchange("http://172.26.186.206:8080/hive/list/schemas?appid=admin_test",
  HttpMethod.GET, requestEntity, String.class);
 System.out.println(responseEntity1.getBody());
 }

restTemplate的注解如下：

@Component
public class MyConfig { 
 
  @Autowired
  RestTemplateBuilder builder;
 
  @Bean
  public RestTemplate restTemplate() {
    return builder.build();
  }
}

發(fā)送get請(qǐng)求

 @Test
 public void testCheck() {
 String url = "http://172.26.186.206:8080/syncsql/process";
 String timeStramp = String.valueOf(System.currentTimeMillis());
 HttpHeaders headers = new HttpHeaders();
 headers.add("appid", "");
 headers.add("sign", sign(null, null,null));
 headers.add("timestamp", timeStramp);
 
 JSONObject jsonObj = new JSONObject();
 
 HttpEntity<String> formEntity = new HttpEntity<String>(null, headers);
 
 Map<String, Object> maps = new HashMap<String, Object>();
 maps.put("sql", "select * from jingfen.d_user_city");
 maps.put("type", 1);
 maps.put("account", "admin_test");
 
 ResponseEntity<String> exchange = restTemplate.exchange(url + "?sql={sql}&type={type}&account={account}",
  HttpMethod.GET,
  formEntity, String.class, maps);
 String body = exchange.getBody();
 
 LOGGER.info("{}", body);
 }

以上這篇RestTemplate發(fā)送get和post請(qǐng)求,下載文件的實(shí)例就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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