Question

我想对股票发出RSI警报。

这是Alpha Vantage API响应我的请求的数据。每当我运行代码时，我都想提取最新的RSI。

在这种情况下，它是77.0835。由于日期和时间（即2020-01-24 14:30）不断变化，请问有什么方法可以获取最新的RSI？

摘录自Alpha Vantage的回复：

public void getRepo() {

Json reporte = new Json("{\"template\":{\"shortid\":\"ytyg1Ho\"},\"data\":null}");

List<HttpMessageConverter<?>> messageConverters = new ArrayList<HttpMessageConverter<?>>();
MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();

/* MENSAGE CONVERTER */
messageConverters.add(new ByteArrayHttpMessageConverter());
converter.setSupportedMediaTypes(Collections.singletonList(MediaType.ALL));
messageConverters.add(converter);

RestTemplate restTemplate = new RestTemplate(messageConverters);

 // REQUEST
HttpEntity<Object> entity = new HttpEntity<>(reporte, this.getHeaders());

   /* RESPONSE */
try {
    byte[] response = restTemplate.postForObject(base_url, entity, byte[].class);
    System.out.println("Response "+new String(response));
}catch (Exception e) {
    System.out.println(e.getMessage() +" "+ e);
}

Answer 1

怎么样？

data = {
    "Meta Data": {
        "1: Symbol": "tlt",
        "2: Indicator": "Relative Strength Index (RSI)",
        "3: Last Refreshed": "2020-01-24 14:30:46",
        "4: Interval": "60min",
        "5: Time Period": 14,
        "6: Series Type": "close",
        "7: Time Zone": "US/Eastern Time"
    },
    "Technical Analysis: RSI": {
        "2020-01-24 14:30": {
            "RSI": "77.0835"
        },
        "2020-01-24 13:30": {
            "RSI": "78.0121"
        },
        "2020-01-24 12:30": {
            "RSI": "75.8201"
        },
        "2020-01-24 11:30": {
            "RSI": "75.7447"
        },
        "2020-01-24 10:30": {
            "RSI": "73.9965"
        },
        "2020-01-24 09:30": {
            "RSI": "73.8768"
        }
    }
}

most_recent_rsi = data['Technical Analysis: RSI'][sorted(data['Technical Analysis: RSI'])[-1]]

如何从Alpha Vantage API中提取数据？

1 个答案: