RestTemplate发送get和post请求,下载文件的实例

RestTemplate发送get和post请求,-文件的实例

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。

-文件，获取文件字节流：

RestTemplate restTemplate = new RestTemplate();

HttpHeaders headers = new HttpHeaders();

ResponseEntity ZVkmDGfusjentity = 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：

RestTemplate restTemplate = new RestTemplate();

String url = "http://127.0.0.1:8080/file/upload"

MultiValueMap 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~

@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 requestBody = new LinkedMultiValueMap<>();

requestBody.add("id", "1");

//HttpEntity

HttpEntity requestEntity = new HttpEntity(requestBody, requestHeaders);

//post

ResponseEntity responseEntity = restTemplate.postForEntity(url, requestEntity, String.class);

System.out.println(responseEntity.getBody());

ResponseEntity 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();

}

}

发送get请求

@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 formEntity = new HttpEntity(null, headers);

Map();

maps.put("sql", "select * from jingfen.d_user_city");

maps.put("type", 1);

maps.put("account", "admin_test");

ResponseEntity exchange = restTemplate.exchange(url + "?sql={sql}&type={type}&account={acZVkmDGfusjcount}",

HttpMethod.GET,

formEntity, String.class, maps);

String body = exchange.getBody();

LOGGER.info("{}", body);

}

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