java里面封装https请求工具类

1.工具类如下

@Component
@Slf4j
public class RestClientUtil<T> {private final RestTemplate restTemplate;public RestClientUtil() {this.restTemplate = new RestTemplate();}public JSONObject uploadFile(String url, String fileUrl) throws IOException {List<HttpMessageConverter<?>> messageConverters = new ArrayList<>();messageConverters.add(new MappingJackson2HttpMessageConverter());messageConverters.add(new FormHttpMessageConverter());messageConverters.add(new FastJsonHttpMessageConverter());restTemplate.setMessageConverters(messageConverters);// 构建请求体MultipartBodyBuilder bodyBuilder = new MultipartBodyBuilder();File file = new File(fileUrl);Path filePath = Paths.get(file.getAbsolutePath());byte[] fileBytes = Files.readAllBytes(filePath);bodyBuilder.part("data", new ByteArrayResource(fileBytes) {@Overridepublic String getFilename() {return file.getName();}}, MediaType.MULTIPART_FORM_DATA);HttpHeaders headers = new HttpHeaders();headers.setContentType(MediaType.MULTIPART_FORM_DATA);HttpEntity<MultiValueMap<String, HttpEntity<?>>> requestEntity = new HttpEntity<>(bodyBuilder.build(), headers);// 发送请求并处理响应ResponseEntity<JSONObject> exchange = restTemplate.exchange(url, HttpMethod.POST, requestEntity, JSONObject.class);if (exchange.getStatusCode() == HttpStatus.OK) {return exchange.getBody();}return null;}public ResponseEntity<T> get(String url, Class<T> responseType) {HttpHeaders headers = new HttpHeaders();HttpEntity<String> requestEntity = new HttpEntity<>(headers);return restTemplate.exchange(url, HttpMethod.GET, requestEntity, responseType);}public <T> T post(String url, MultiValueMap<String, String> requestBody, Class<T> responseType) {HttpHeaders headers = new HttpHeaders();headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);HttpEntity<MultiValueMap<String, String>> requestEntity = new HttpEntity<>(requestBody, headers);ResponseEntity<T> responseEntity = restTemplate.postForEntity(url,requestEntity,responseType);return responseEntity.getBody();}public ResponseEntity<T> delete(String url, Class<T> responseType) {HttpHeaders headers = new HttpHeaders();HttpEntity<String> requestEntity = new HttpEntity<>(headers);return restTemplate.exchange(url, HttpMethod.DELETE, requestEntity, responseType);}public ResponseEntity<T> put(String url, Object body, Class<T> responseType) {HttpHeaders headers = new HttpHeaders();headers.setContentType(MediaType.APPLICATION_JSON);HttpEntity<Object> requestEntity = new HttpEntity<>(body, headers);return restTemplate.exchange(url, HttpMethod.PUT, requestEntity, responseType);}
}

2.调用

@org.springframework.stereotype.Service
@Service(version = "1.0.0")
@Slf4j
public class OcrServiceImpl implements OcrService {@Resourceprivate RedissonClient redissonClient;@Autowiredprivate RestClientUtil<JSONObject> restClientUtil;public BaseResponseVo<String> getLicenseInfo(OcrDTO ocrDTO) throws IOException {
JSONObject imgResult = restClientUtil.uploadFile(imgUrl + "?appkey=" + keyMapping.get(ocrDTO.getOcrType()), imagePath);MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();paramsMap.set("key", keyMapping.get(ocrDTO.getOcrType()));paramsMap.set("imageId", imgResult.getString("data"));JSONObject resultData = restClientUtil.post(url + typeMapping.get(ocrDTO.getOcrType()), paramsMap, JSONObject.class);if (!"10000".equals(resultData.getString("code"))) {return BaseResponseVo.error(imgResult.getString("code"), imgResult.getString("message"));}}}