java - 如何在android中解析字符串 "Mon Aug 08 16:44:19 EAT 2016"至今

Question

  private void parseDate() {
        String p_localDateTime = "Mon Aug 08 16:44:19 EAT 2016";
        SimpleDateFormat lv_formatter,lv_parser;
        String lv_localTimeZone ="";
        lv_localTimeZone="EAT";
        Date lv_localDate = null;

        lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy");
        //lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy");
        //lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzzz yyyy");
        lv_parser.setTimeZone(TimeZone.getTimeZone(lv_localTimeZone));
        try {
            lv_localDate = lv_parser.parse(p_localDateTime);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        System.out.println("convertLocalTimeToUTC: ");
    }

我尝试使用 3 种不同的区域格式“z”、“zzz”、“zzzz”来解析这个日期，但都抛出 java.text.ParseException: Unparseable date: “Mon Aug 08 16:44:19 EAT 2016” (在偏移量 20 处)

Answer 1

您必须添加语言环境:

lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy",Locale.ENGLISH);

完整示例:

      String p_localDateTime = "Mon Aug 08 16:44:19 EAT 2016";
        SimpleDateFormat lv_formatter,lv_parser;
        String lv_localTimeZone ="";
        lv_localTimeZone="EAT";
        Date lv_localDate = null;

        lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy",Locale.ENGLISH);          //lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy");
        //lv_parser = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzzz yyyy");
        lv_parser.setTimeZone(TimeZone.getTimeZone(lv_localTimeZone));
        try {
            lv_localDate = lv_parser.parse(p_localDateTime);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        System.out.println("convertLocalTimeToUTC: ");