将特定字符串解析为日期

Question

纵观通过Selenium读取整个表，并将结果写入到一个Excel文件，我目前面临的一个问题格式化/解析日期String的Date对象。我要存档的是以下格式：

dd-mm-yyyy

从表中检索的 dateString 如下所示

16 APR 2020

我尝试使用SimpleDateFormat格式化程序，但我得到了一个ParseException.

java.text.ParseException: Unparseable date: "16 Apr 2020"

Answer 1

仅供参考：这是String当今解析和格式化日期的方法java.time（可从 Java 8 获得）：

public static void main(String[] args) {
    // the date String
    String dateString = "16 Apr 2020";
    /*
     * which is parsed to a LocalDate using a formatter 
     * with a suitable pattern and a fitting Locale
     * (ENGLISH is a good choice because it is language specific,
     * you could use a country specific one here as well, like US or UK)
     */
    LocalDate ld = LocalDate.parse(dateString,
            DateTimeFormatter.ofPattern("dd MMM yyyy", Locale.ENGLISH));
    /*
     * and which is then printed in a different format 
     * using a formatter with a different pattern
     * (this time no Locale is needed because the format is numeric)
     */
    System.out.println(ld.format(DateTimeFormatter.ofPattern("dd-MM-yyyy")));
}

这个的输出是

public static void main(String[] args) {
    // the date String
    String dateString = "16 Apr 2020";
    /*
     * which is parsed to a LocalDate using a formatter 
     * with a suitable pattern and a fitting Locale
     * (ENGLISH is a good choice because it is language specific,
     * you could use a country specific one here as well, like US or UK)
     */
    LocalDate ld = LocalDate.parse(dateString,
            DateTimeFormatter.ofPattern("dd MMM yyyy", Locale.ENGLISH));
    /*
     * and which is then printed in a different format 
     * using a formatter with a different pattern
     * (this time no Locale is needed because the format is numeric)
     */
    System.out.println(ld.format(DateTimeFormatter.ofPattern("dd-MM-yyyy")));
}