下图是我的所有测试接口,包含两个表单提交接口和一个Rest接口:
我是用的Http请求工具是Spring自带的RestTemplate。
请求的方法如下:
三个请求分别对应三个接口,在此记录下。
下载文件,获取文件字节流:
1 2 3 4 | 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 文件上传:
1 2 3 4 5 6 7 8 9 | RestTemplate restTemplate = new RestTemplate(); String url = "http://127.0.0.1:8080/file/upload" MultiValueMap<String, Object> multiValueMap = new LinkedMultiValueMap<>(); // 设置multi/form-data文件 multiValueMap.add( "file" , new FileSystemResource( "D:/1.mp3" )); multiValueMap.add( "name" , "测试材料" ); // http请求 String response = restTemplate.postForObject(url, multiValueMap, String. class ); |
补充知识:restTemplate发送get与post请求 并且带参数
我就废话不多说了,大家还是直接看代码吧~
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | @Test public void test() throws Exception{ //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:
1 2 3 4 5 6 7 8 9 10 11 | @Component public class MyConfig { @Autowired RestTemplateBuilder builder; @Bean public RestTemplate restTemplate() { return builder.build(); } } |
发送get请求
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | @Test public void testCheck() { 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); } |
以上这篇RestTemplate发送get和post请求,下载文件的实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持自学编程网。
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