java时间格式化保留毫秒值
public static void main(String[] args) {
String time = DateTimeFormatter.ofPattern("yyyyMMddHHmmss_SSS").format(LocalDateTime.now());
System.err.println(time);
}
// 输出结果:20231122202148_109
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public static void main(String[] args) {
String time = DateTimeFormatter.ofPattern("yyyyMMddHHmmss_SSS").format(LocalDateTime.now());
System.err.println(time);
}
// 输出结果:20231122202148_109