使用Spring RestTemplate实现分块的POST字节数组

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web-services</artifactId>
</dependency>

byte[] fileData = // 分块字节数组
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
HttpEntity<byte[]> entity = new HttpEntity<>(fileData, headers);

RestTemplate restTemplate = new RestTemplate();
restTemplate.setRequestFactory(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory()));
restTemplate.getMessageConverters().add(new ByteArrayHttpMessageConverter());

String url = // 目标URL
ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.POST, entity, String.class);