视觉化KBARS(3)-service、serviceImpl

今天要写service、serviceImpl两个部分，

(1)第一部分，service新增oneMinKbar方法

public interface ShioajiService {
	
	public String test(String tickdate) throws Exception;
	public String oneMinKbar(String start_date,String end_date, String stock_code) throws Exception;
	
}

(2)第2部分，serviceImpl新增oneMinKbar方法，
带入3个参数开始时间、结束时间、股票代码来呼叫python api

public String oneMinKbar(String start_date,String end_date, String stock_code) {
		
		log.info(" excute oneMinKbar time is {}", dateFormat.format(new Date()));
		String data = "";

		RestTemplate restTemplate = new RestTemplate();
		HttpEntity<String> entity = new HttpEntity<>("");
		try {
			ResponseEntity<String> getTick  = 
					restTemplate.exchange(
							apiUrl+"kbars?date_start="+start_date+"&date_end="+end_date+"&stock_code="+stock_code,
							HttpMethod.GET,
							entity, 
							new ParameterizedTypeReference<String>() {});
			
			data = getTick.getBody();
			
		}catch(Exception ex) {
			log.error(ex.getMessage(),ex);
			throw ex;
		}

		return data;
	}

明天要继续写controller的部分!