Question

java swt中 文本框怎么控制它只能输入日期格式

把文本框的日期传到数据库中，怎么控制用户只能输入日期格式？

Answer 1

用正则表达式判断，如果不是日期格式，就要求他重新输入给你一个正则表达式判断日期格式的例子，支持润二月的：import java.util.regex.Pattern;
public class test {
public static void main(String ss[]){
Pattern p = Pattern
.compile("^((\\d{2}(([02468][048])|([13579][26]))[\\/\\/\\s]?((((0?" +
"[13578])|(1[02]))[\\/\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))" +
"|(((0?[469])|(11))[\\/\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|" +
"(0?2[\\/\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][12" +
"35679])|([13579][01345789]))[\\/\\/\\s]?((((0?[13578])|(1[02]))" +
"[\\/\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))" +
"[\\/\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\/\\/\\s]?((0?[" +
"1-9])|(1[0-9])|(2[0-8]))))))");
//(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$ 时间部分00：00：00
String s = "2003/02/29";
System.out.println(s + " " + p.matcher(s).matches()); s = "2004/02/29";
System.out.println(s + " " + p.matcher(s).matches()); s = "2004/04/31";
System.out.println(s + " " + p.matcher(s).matches()); s = "2004/04/30";
System.out.println(s + " " + p.matcher(s).matches()); s = "2004/04/30";
System.out.println(s + " " + p.matcher(s).matches()); s = "2004/09/30";
System.out.println(s + " " + p.matcher(s).matches());
}
}