org.dromara.hutool.core.io.unit

Class DataSizeUtil

java.lang.Object

org.dromara.hutool.core.io.unit.DataSizeUtil

public class DataSizeUtil
extends Object

数据大小工具类

Since:

5.3.10

Author:

looly

Constructor Summary

Constructors

Constructor and Description
DataSizeUtil()

Method Summary

Modifier and Type	Method and Description
static String	format(long size) 可读的文件大小 参考 http://stackoverflow.com/questions/3263892/format-file-size-as-mb-gb-etc
static String	format(long size, boolean useSimpleName) 可读的文件大小 参考 http://stackoverflow.com/questions/3263892/format-file-size-as-mb-gb-etc
static String	format(long size, int scale, String[] unitNames, String delimiter) 可读的文件大小 参考 http://stackoverflow.com/questions/3263892/format-file-size-as-mb-gb-etc
static long	parse(String text) 解析数据大小字符串，转换为bytes大小

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataSizeUtil

public DataSizeUtil()

Method Detail

parse

public static long parse(String text)

解析数据大小字符串，转换为bytes大小

Parameters:

text - 数据大小字符串，类似于：12KB, 5MB等

Returns:

bytes大小

format

public static String format(long size)

可读的文件大小
参考 http://stackoverflow.com/questions/3263892/format-file-size-as-mb-gb-etc

Parameters:

size - Long类型大小

Returns:

大小

format

public static String format(long size,
                            boolean useSimpleName)

可读的文件大小
参考 http://stackoverflow.com/questions/3263892/format-file-size-as-mb-gb-etc

Parameters:

size - Long类型大小

useSimpleName - 是否使用简写，例如：1KB 简写成 1K

Returns:

大小

format

public static String format(long size,
                            int scale,
                            String[] unitNames,
                            String delimiter)

可读的文件大小
参考 http://stackoverflow.com/questions/3263892/format-file-size-as-mb-gb-etc

Parameters:

size - Long类型大小

scale - 小数点位数，四舍五入

unitNames - 单位数组

delimiter - 数字和单位的分隔符

Returns:

大小