将java.time.LocalDate转换为java.util.Date [英] Convert java.time.LocalDate to java.util.Date

问题描述

我有yyyy-MM-dd格式的java.time.LocalDate对象. 我想知道如何将其转换为MM-dd-yyyy格式的java.util.Date. getStartDate()方法应该能够返回格式为MM-dd-yyyy的Date类型的对象.

I have java.time.LocalDate Object in yyyy-MM-dd format. I would like to know how to convert this to java.util.Date with MM-dd-yyyy format. getStartDate() method should be able to return Date type object with the format MM-dd-yyyy.

DateParser类

package com.accenture.javadojo.orgchart;

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
import java.util.Locale;


    public class DateParser {

        public static LocalDate parseDate(String strDate){

            try{
                if((strDate != null) && !("").equals(strDate)){

                    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("M/d/yyyy").withLocale(Locale.US);
                    LocalDate date = LocalDate.parse(strDate, formatter);
                    return date;
                }
            } catch (DateTimeParseException e) {

                e.printStackTrace();
            }

            return null;
        }

    }

---

public Date getStartDate() {

    String fmd = format.format(startDate); 

    LocalDate localDate = DateParser.parseDate(fmd);

    return startDate;
}

推荐答案

如果您有要转换为Date的LocalDate，请使用

If you have a LocalDate which you want to convert to a Date, use

LocalDate localDate = ...;
Instant instant = localDate.atStartOfDay().atZone(ZoneId.systemDefault()).toInstant();
Date res = Date.from(instant);

来源: http://blog.progs.be/542/date-到Java时间

然后您可以使用SimpleDateFormat将Date格式化为所需的任何格式.

You can then use a SimpleDateFormat to format the Date to whatever format you like.

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