无法解析的日期:将日期从dd MMM yyyy格式转换为dd/MM/yyyy

Question

我在代码下面运行时出现Unparseable错误.如何将dd MMM yyyy格式转换为dd/MM/yyyy格式？

public Calendar myMethod(){
   String dateStr = "16 Dec 2014"
   SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
   Date thedate = formatter.parse(dateStr);

   Calendar cal = Calendar.getInstance();
   cal.setTime(thedate);
   return cal;
}

Answer 1

假设您修复了明显的语法错误,那么:

String dateStr = "16 Dec 2014"                // <== This date is in dd MMM yyyy
formatter = new SimpleDateFormat(dd/MM/yyyy); // <== This SDF is in dd/MM/yyyy
Date thedate = formatter.parse(dateStr);      // <== So how can it be expected to parse?

你要做的是为你需要解析的格式创建一个解析器,并为你想要的格式创建一个格式化器:

String dateStr = "16 Dec 2014";
SimpleDateFormat parser = new SimpleDateFormat("dd MMM yyyy");
Date thedate = parser.parse(dateStr);
SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
String dateStrReformatted = formatter.format(thedate);