Question

我正在使用Java在Alexa中创建一个天气应用程序。我的目标是这样的。

用户输入城市名称/国家/地区名称。
我的代码决定这是一个城市/国家。
如果它是一个城市，它会给出天气，否则会提示用户给一个城市。
根据城市，它会给出天气结果。

我的代码如下。

private String getTheCurrentWeather(Intent intent, Session session) {
    InputStreamReader inputStream = null;
    BufferedReader bufferedReader = null;
    String text = "";
    String result = "";
    String cityName = getCityName(intent);
    String checkIfItIsACountry = getCountryCode(cityName, session);
    String countryCode = (String) session.getAttribute("countryCode");
    try {
        String line;
        URL url = new URL(URL_PREFIX + cityName);
        inputStream = new InputStreamReader(url.openStream(), Charset.forName("US-ASCII"));
        bufferedReader = new BufferedReader(inputStream);
        StringBuilder builder = new StringBuilder();
        while ((line = bufferedReader.readLine()) != null) {
            builder.append(line);
        }
        text = builder.toString();

        ObjectMapper mapper = new ObjectMapper();
        Map<String, Object> map = mapper.readValue(text, new TypeReference<Map<String, Object>>() {
        });

        Map<String, Double> mainMap = (Map<String, Double>) map.get("main");
        String cityN = map.get("name").toString();
        String cityNWithjoutSpace = map.get("name").toString().replace(" ", "");
        if (cityNWithjoutSpace.equalsIgnoreCase(cityName) && checkIfItIsACountry.length() == 0) {
            double x = mainMap.get("temp") - 273.15;
            result = "Weather in " + cityN + " is " + df2.format(x) + " degrees Celcius from block one";
        } else {
            if (checkIfItIsACountry.length() != 0) {
                result = "I can't get the weather of entire Country, please give me a city";

                result = getTheCurrentWeatherWithCountry(intent, session, countryCode);

            } else {
                result = "You have not entered a valid city";
            }
        }

    } catch (IOException e) {
        text = "";
    } finally {
        IOUtils.closeQuietly(inputStream);
        IOUtils.closeQuietly(bufferedReader);
    }
    return result;
}

private String getTheCurrentWeatherWithCountry(Intent intent, Session session, String countryCode2) {
    InputStreamReader inputStream = null;
    BufferedReader bufferedReader = null;
    String text = "";
    String result = "";
    String cityName = getCityName(intent);
    String countryCode = (String) session.getAttribute("countryCode");
    try {
        String line;
        URL url = new URL(URL_PREFIX + cityName + "," + countryCode2);
        inputStream = new InputStreamReader(url.openStream(), Charset.forName("US-ASCII"));
        bufferedReader = new BufferedReader(inputStream);
        StringBuilder builder = new StringBuilder();
        while ((line = bufferedReader.readLine()) != null) {
            builder.append(line);
        }
        text = builder.toString();

        ObjectMapper mapper = new ObjectMapper();
        Map<String, Object> map = mapper.readValue(text, new TypeReference<Map<String, Object>>() {
        });

        Map<String, Double> mainMap = (Map<String, Double>) map.get("main");
        String cityN = map.get("name").toString();
        String cityNWithjoutSpace = map.get("name").toString().replace(" ", "");
        double x = mainMap.get("temp") - 273.15;
        result = "Weather in " + cityN + " is " + df2.format(x) + " degrees Celcius  from block two";
    } catch (IOException e) {
        text = "";
    } finally {
        IOUtils.closeQuietly(inputStream);
        IOUtils.closeQuietly(bufferedReader);
    }
    return result;
}

private String getCityName(Intent intent) {
    Slot cityName = intent.getSlot(Slot_City);
    return cityName.getValue();
}// get Country Code using Locale
public String getCountryCode(String countryName, Session session) {
    String result = "";
    String[] locales = Locale.getISOCountries();

    for (String countryCode : locales) {

        Locale obj = new Locale("", countryCode);
        if (countryName.equals(obj.getDisplayCountry().toString())) {
            result = obj.getCountry();
        }
    }
    session.setAttribute("countryCode", result);
    return result;
}

我的问题是这样的。

当用户将城市作为输入时，它正确地给出了响应，但当用户将输入作为国家，而不是要求用户输入城市时，它直接给出了首都的天气。

请告诉我如何在这里处理会议。

由于

Answer 1

我猜测，如果仅提供国家/地区，API会将首都城市作为默认值。在这种情况下，您应该在创建URL之前检查字符串，并且只在字符串不是国家/地区代码时才创建URL请求。

无法知道如何使用会话

1 个答案: