java - 将日期从一种格式转换为另一种格式时出错

Question

以下代码遇到问题。输出为 dateStr: 11-Jan-11。谁能告诉我为什么要修改日期？

String dateStr="";
String actionCompletionDueDate = "16/11/2011";
DateFormat srcDf = new SimpleDateFormat("mm/dd/yyyy");
DateFormat destDf = new SimpleDateFormat("dd-MMM-yy");              
if(actionCompletionDueDate != null && !actionCompletionDueDate.equals("")) {
  // parse the date string into Date object
  System.out.println("actionCompletionDueDate: " + actionCompletionDueDate);
  Date actionCompletionDate = srcDf.parse(actionCompletionDueDate);
  dateStr = destDf.format(actionCompletionDate);
  System.out.println("dateStr: " + dateStr);
}

Answer 1

改变

DateFormat srcDf = new SimpleDateFormat("mm/dd/yyyy"); 

至

DateFormat srcDf = new SimpleDateFormat("dd/MM/yyyy");

或者将正确的字符串(尊重您的格式)传递给您的代码

String actionCompletionDueDate = "11/16/2011"; 

并将格式更正为 DateFormat srcDf = new SimpleDateFormat("MM/dd/yyyy");

mm 表示分钟，MM 表示几个月