java正则校验时间戳_正则表达式校验时间格式

import org.junit.jupiter.api.Test;

import java.io.IOException;

import java.util.regex.Pattern;

/**

* Created by zengxc on 2018/1/30.

*/

public class DatePatternUtils {

private Boolean checkDate(String dateStr) throws IOException {

// 4种分隔符

String sep = "[-\\./_]";

// 年份

String strPattern = "^(19[4-9]\\d|20\\d{2})";

strPattern += "(";

// 月(1,3,5,7,8,10,12)

strPattern += "((0?[13578]|1[02])(0?[1-9]|[12][0-9]|3[01]))|";

// 月(4,6,9,11)

strPattern += "((0?[469]|11)(0?[1-9]|[12][0-9]|30))|";

// 月(2)

strPattern += "((0?[2]|11)(0?[1-9]|[12][0-9]|29))|";

strPattern += ")$";

System.out.println(strPattern);

Pattern p = Pattern.compile(strPattern);

return p.matcher(dateStr).matches();

}

/**

* 正则校验时间格式尽量完善版 ,适用格式(yyyyMMdd),二月只能控制到29号，无法区分平年、闰年。

* @param dateStr

* @return

*/

private Boolean checkDates(String dateStr){

String datePattern = "^(19[4-9]\\d|20\\d{2})(((0?[13578]|1[02])(0?[1-9]|[12][0-9]|3[01]))" +

"|((0?[469]|11)(0?[1-9]|[12][0-9]|30))|((0?[2]|11)(0?[1-9]|[12][0-9]|29))|)$";

Pattern pattern = Pattern.compile(datePattern);

return pattern.matcher(dateStr).matches();

}

@Test

public void test01() throws IOException {

String dateStr = "20180229";

Boolean bool = checkDates(dateStr);

System.out.println(bool);

}