使用 java Date 和 SimpleDateFormat 验证范围

2022-01-24 00:00:00 validation date range java

当我在这里尝试使用此代码解析日期时,是否有可以处理的日期异常:

Is there a Date exception that I can deal with when I try to parse a date with this code here:

try{
   SimpleDateFormat df = new SimpleDateFormat("dd:MM:yyyy"); 
   Date date = df.parse(dateRelease);
}catch (ParseException e) {} 

好吧,如果dateRelease"是不是正确的格式类型,它会抛出 ParseException,但我想知道是否有人像2010 年 3 月 40 日"这样写.- 日、月或年无效范围错误.实际上,当发送无效日期时,SimpleDateFormat 只是使用默认数字创建一个新日期.

Well, if the "dateRelease" isn't in a correct format type it throws ParseException, but I want to get if someone write like "40/03/2010" - WRONG with day, month or year invalid range. Actually, when a invalid date is sent, SimpleDateFormat just create a new Date with default numbers.

我是否必须使用正则表达式创建自己的方法来处理它,或者是否存在告诉我它要捕获的现有异常?

Do I have to create my own method with a regex to deal with it or is there an existing exception that tells me it to catch?

推荐答案

通过 SimpleDateFormat#setLenient(),值为 false.

SimpleDateFormat df = new SimpleDateFormat("dd:MM:yyyy"); 
df.setLenient(false);
Date date = df.parse(dateRelease);

那么当日期不在有效范围内时会抛出ParseException.

Then it will throw ParseException when the date is not in a valid range.

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