RestTemplate 的用法

1.引入对应依赖

2.private final RestTemplate restTemplate;

3.上代码

@Service
@Slf4j
public class CspWarehouseServiceImpl implements ICspWarehouseService {
private final RestTemplate restTemplate;public CspWarehouseServiceImpl() {this.restTemplate = new RestTemplate();}private final String returnMessage = "无数据,参数都正确，没有数据";/*** 仓库温度gps请求** @param url              url* @param gpsReqDTO        请求采纳数* @param responseBodyType json类型* @param <T>              参数* @return 结果*/public <T> T exchange(String url,String gpsReqDTO,Class<T> responseBodyType) {try {log.info("请求仓库温度gps接口请求报文={}", gpsReqDTO);HttpHeaders headers = new HttpHeaders();headers.setContentType(MediaType.APPLICATION_JSON);HttpEntity<String> requestEntity = new HttpEntity<>(gpsReqDTO, headers);ResponseEntity<T> responseEntity = restTemplate.postForEntity(url,requestEntity,responseBodyType);return responseEntity.getBody();} catch (Exception e) {log.error("调用仓库温度GPS接口异常=", e);return null;}}}

public List<CspWarehouseEquipment> selectCspWarehouseEquipmentList(CspWarehouseEquipment cspWarehouseEquipment) {CspGPSReqDTO gpsReqDTO = buildGpsRequest(equipmentNumberList, "GetColdStorageCurrentTemp", startTime, endTime);String reqDto = objectMapper.writeValueAsString(gpsReqDTO);String url = environment.getProperty("gps.platform.coldTmpUrl");JSONObject returnObjDevice = exchange(url, reqDto, JSONObject.class);if (returnObjDevice != null && (!returnMessage.contains(returnObjDevice.getString("Rtn_Data"))&& !"[]".equals(returnObjDevice.getString("Rtn_Data")) &&!returnMessage.contains(returnObjDevice.getString("Rtn_Msg")))) {Integer rtnCode = returnObjDevice.getInteger("Rtn_Code");if (rtnCode != null && rtnCode == 0) {if (!"无数据！".equals(returnObjDevice.getString("Rtn_Data"))) {List<CspWarehouseTempInterface> temperatureDetailsList = JSON.parseObject(returnObjDevice.getString("Rtn_Data"),new TypeReference<List<CspWarehouseTempInterface>>() {});structureData(list, temperatureDetailsList);}}}
}