如何将月份的语言更改为西班牙语？

Question

我收到 API 的日期是这样的：

2020-09-10T20:00:00.000Z

当我转换这个日期时，它显示 SEPTEMBER 10, 2020 8:00 p. m.

我需要用西班牙语显示月份，例如 Septiembre 或 Sep

Answer 1

您可以尝试这样的操作（returns 日期格式：10 de septiembre de 2020 20:00）：

val format: DateFormat = DateFormat.getDateTimeInstance(
    DateFormat.LONG, // date format
    DateFormat.SHORT, // time format
    Locale("es", "ES") // Spanish Locale
)

val dateTime = "2020-09-10T20:00:00.000Z"
val simpleDateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale("es", "ES"))
val date: Date = simpleDateFormat.parse(dateTime)!! // without validation

println(format.format(date)) // it prints `10 de septiembre de 2020 20:00`

Answer 2

我建议您使用 modern java.time date-time API and the corresponding formatting API (package, java.time.format) instead of with the outdated and error-prone java.util date-time API and SimpleDateFormat. Learn more about the modern date-time API from Trail: Date Time. If your Android API level is still not compliant with Java8, check and Java 8+ APIs available through desugaring。

使用现代 date-time API:

import java.time.OffsetDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

public class Main {
    public static void main(String[] args) {
        // The given date-time string
        String strDateTime = "2020-09-10T20:00:00.000Z";

        // Parse the given date-time string into OffsetDateTime
        OffsetDateTime odt = OffsetDateTime.parse(strDateTime);

        // Define the formatter for output in a custom pattern and in Spanish Locale
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMMM dd, uuuu hh:mm a", new Locale("es", "ES"));

        // Print instant using the defined formatter
        String formatted = formatter.format(odt);
        System.out.println(formatted);
    }
}

输出：

septiembre 10, 2020 08:00 p. m.

如果您仍想使用旧版 date-time 和格式 API，您可以按如下方式进行：

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class Main {
    public static void main(String[] args) throws ParseException {
        // The given date-time string
        String strDateTime = "2020-09-10T20:00:00.000Z";

        // Define the formatter to parse the input string
        SimpleDateFormat inputFormatter = new SimpleDateFormat("yyy-MM-dd'T'HH:mm:ss.SSS'Z'");

        // Parse the given date-time string into java.util.Date
        Date date = inputFormatter.parse(strDateTime);
        
        // Define the formatter for output in a custom pattern and in Spanish Locale
        SimpleDateFormat outputFormatter = new SimpleDateFormat("MMMM dd, yyyy hh:mm a", new Locale("es", "ES"));

        // Print instant using the defined formatter
        String formatted = outputFormatter.format(date);
        System.out.println(formatted);
    }
}

输出：

septiembre 10, 2020 08:00 p. m.

如何将月份的语言更改为西班牙语？

How to change the language of the month to Spanish?

datetime

android

date

datetime-format

kotlin