Java字符串转时间几种常见的方法

import java.text.SimpleDateFormat;
import java.util.Date;

public class StringToDate {
    public static void main(String[] args) throws Exception {
        String dateString = "2023-05-15 14:30:00";
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = format.parse(dateString);
        System.out.println(date);
    }
}

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class StringToLocalDateTime {
    public static void main(String[] args) {
        String dateString = "2023-05-15 14:30:00";
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        LocalDateTime dateTime = LocalDateTime.parse(dateString, formatter);
        System.out.println(dateTime);
    }
}

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

String dateString = "2023-05-15";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
LocalDate date = LocalDate.parse(dateString, formatter);

import java.time.LocalTime;
import java.time.format.DateTimeFormatter;

String timeString = "14:30:00";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("HH:mm:ss");
LocalTime time = LocalTime.parse(timeString, formatter);

String dateString1 = "15/05/2023";
String dateString2 = "May 15, 2023";
String dateString3 = "20230515";

DateTimeFormatter formatter1 = DateTimeFormatter.ofPattern("dd/MM/yyyy");
DateTimeFormatter formatter2 = DateTimeFormatter.ofPattern("MMM dd, yyyy");
DateTimeFormatter formatter3 = DateTimeFormatter.BASIC_ISO_DATE;

LocalDate date1 = LocalDate.parse(dateString1, formatter1);
LocalDate date2 = LocalDate.parse(dateString2, formatter2);
LocalDate date3 = LocalDate.parse(dateString3, formatter3);

import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

String dateString = "2023-05-15T14:30:00+08:00";
ZonedDateTime zonedDateTime = ZonedDateTime.parse(dateString);
System.out.println(zonedDateTime);

// 或者指定格式
String customDateString = "2023-05-15 14:30:00 Asia/Shanghai";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss VV");
ZonedDateTime zdt = ZonedDateTime.parse(customDateString, formatter);