java.lang.Object

org.coodex.util.Common

public class Common extends Object

作者:: davidoff

嵌套类概要

嵌套类

修饰符和类型

类

说明

static class

Common.ArrayBlockRef

static enum

Common.Edge

static class

Common.StringToBoolean

static class

Common.StringToFloat

static class

Common.StringToInt

static class

Common.StringToLong
字段概要

字段

修饰符和类型

字段

说明

static final String

DEFAULT_DATE_FORMAT

static final String

DEFAULT_DATETIME_FORMAT

static final String

DEFAULT_TIME_FORMAT

static final String

FILE_SEPARATOR

static final String

PATH_SEPARATOR

static final int

PROCESSOR_COUNT

static final Random

RANDOM

static final Long

SYSTEM_START_TIME

static final String

USER_DIR
方法概要

修饰符和类型

方法

说明

static <T> Set<T>

arrayToSet(T[] array)

static byte[]

base16Decode(String hexString)

static byte[]

base16Decode(String hexString, String ignoreChars)

static String

base16Encode(byte[] b)

static String

base16Encode(byte[] b, int offset, int length)

static String

base16Encode(byte[] b, int offset, int length, int col, String split)

static String

base16Encode(byte[] b, int offset, int length, Function<Integer,Integer> colFunction, String split)

static String

base16Encode(byte[] b, int col, String split)

static String

base16Encode(byte[] b, Function<Integer,Integer> colFunction, String split)

static <T extends Comparable<T>> boolean

between(T t, T bound1, T bound2)

已过时。
使用 Common.Edge.between(Comparable, Comparable, Comparable)替代

static String

byte2hex(byte[] b)

已过时。

static String

byte2hex(byte[] b, int offset, int length)

已过时。

static String

byte2hex(byte[] b, int offset, int length, int col, String split)

已过时。

static String

byte2hex(byte[] b, int col, String split)

已过时。

static Calendar

calendar(int year)

static Calendar

calendar(int year, int month)

static Calendar

calendar(int year, int month, int date)

static Calendar

calendar(int year, int month, int date, int hour)

static Calendar

calendar(int year, int month, int date, int hour, int minute)

static Calendar

calendar(int year, int month, int date, int hour, int minute, int second)

static Calendar

calendar(int year, int month, int date, int hour, int minute, int second, int millisecond)

static String

calendarToStr(Calendar calendar)

static String

calendarToStr(Calendar calendar, String format)

static String

camelCase(String s)

static String

camelCase(String s, boolean firstCharUpperCase)

static String

camelCase(String s, boolean firstCharUpperCase, String delimiters)

static String

camelCase(String s, String delimiters)

static <T> T

cast(Object obj)

static void

checkNull(Object o, String msg)

已过时。
使用 Objects.requireNonNull(Object, String) 替代

static String

concat(Collection<String> list, String split)

static Calendar

copy(Calendar calendar)

static <K extends Serializable, V extends Serializable> void

copyMap(Map<K,V> org, Map<K,V> target)

static void

copyStream(InputStream is, OutputStream os)

static void

copyStream(InputStream is, OutputStream os, int blockSize, boolean flushPerBlock, int bps)

static Calendar

dateToCalendar(Date date)

static String

dateToStr(Date date)

static String

dateToStr(Date date, String format)

static <T extends Serializable> T

deepCopy(T object)

static Object

deserialize(byte[] buf)

static <T> Set<T>

difference(Set<T> org, Set<T> todiv)

差集 org - todiv

static <T> int

findInArray(T el, T[] array)

已过时。
indexOf(Object[], Object)

static <T> T

firstValuable(T... s)

static <T> void

forEachBlock(T[] all, int blockSize, boolean continuous, float redundancy, BiConsumer<Integer,Integer> consumer)

对一个大数组进行分块操作

static <T> void

forEachBlock(T[] all, int blockSize, boolean continuous, float redundancy, IntFunction<T[]> arrayProvider, Consumer<T[]> consumer)

对一个大数组进行分块操作

static <T> String

formatArray(T[] array, int offset, int length, Function<Integer,Integer> colFunction, String split, Function<T,String> encoder)

static File

getNewFile(String fileName)

已过时。

static URL

getResource(String resource, ClassLoader... classLoaders)

static DateFormat

getSafetyDateFormat(String format)

static Long

getSystemStart()

static String

getUUIDStr()

已过时。

static byte[]

hex2byte(String hexString)

已过时。

static byte[]

hex2byte(String hexString, String ignoreChars)

已过时。

static <T> boolean

inArray(T el, T[] array)

static <T> int

indexOf(T[] array, T t)

static <T> Set<T>

intersection(Set<T> set1, Set<T> set2)

交集

static boolean

isBlank(String s)

static boolean

isDebug()

static boolean

isEmpty(Collection<?> collection)

static boolean

isJava9AndLast()

static boolean

isWindows()

static <T, C extends Collection<T>> C

join(C instance, Collection<? extends T>... collections)

static byte[]

long2Bytes(long data)

static Calendar

longToCalendar(long l)

static String

longToDateStr(long l)

static String

longToDateStr(long l, String format)

static String

lowerFirstChar(String string)

static <T extends Comparable<T>> T

max(T c1, T c2, T... others)

static <T extends Comparable<T>> T

min(T c1, T c2, T... others)

static String

native2AscII(String str)

static File

newFile(String fileName)

static boolean

notEmpty(Collection<?> collection)

static String

now()

static String

now(String format)

static String

nullToStr(String str)

static byte

random(byte[] range)

static double

random(double[] range)

static double

random(double min, double max)

static float

random(float[] range)

static int

random(int max)

static int

random(int[] range)

static int

random(int min, int max)

static long

random(long max)

static long

random(long[] range)

static long

random(long min, long max)

static short

random(short[] range)

static <T> T

random(T[] range)

static int

randomC(int max)

static int

randomC(int min, int max)

static long

randomC(long max)

static long

randomC(long min, long max)

static char

randomChar(String s)

static char

randomGB2312Char()

参考地址

static String

randomStr(int min, int max, String range)

static RuntimeException

rte(Throwable th)

static boolean

sameString(String str1, String str2)

已过时。

static long

scale(double d)

static double

scale(double d, int scale)

static double

scale(double d, int scale, RoundingMode roundingMode)

static long

scale(double d, RoundingMode roundingMode)

static float

scale2F(double d, int scale)

static float

scale2F(double d, int scale, RoundingMode roundingMode)

static int

scale2I(double d)

static int

scale2I(double d, RoundingMode roundingMode)

static byte[]

serialize(Object object)

static String

sha1(String content)

static String

sha1(String content, Charset charset)

static double

similarity(String s1, String s2)

static void

sleep(long ms)

static <T> Collection<Common.ArrayBlockRef>

slice(T[] all, int blockSize, boolean continuous, float redundancy)

将一个大数组分块

static <T> List<T>

sort(List<T> list, Comparator<T> comparator)

static Calendar

strToCalendar(String str, String format)

static Date

strToDate(String str)

static Date

strToDate(String str, String format)

static <T> Map<String,T>

subMap(String prefix, Map<String,T> map)

static <T> T

to(String str, T value)

static String

toAbsolutePath(String path)

static String[]

toArray(String str, String delim, String[] v)

static List<String>

toArray(String str, String delim, List<String> v)

static String[]

toArray(String str, String delim, Supplier<String[]> v)

static boolean

toBool(String str, boolean v)

static boolean

toBool(String str, Supplier<Boolean> v)

static byte[]

toBytes(long l, int wide, Endianness endianness)

static int

toInt(String str, int value)

static int

toInt(String str, Supplier<Integer> valueSupplier)

static long

toLong(String str, long value)

static long

toLong(String str, Supplier<Long> value)

static String

trim(String str, char... trimChars)

static String

trim(String str, String toTrim)

static Calendar

truncate(Calendar calendar, int fromField)

static String

upperFirstChar(String string)

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料
- PATH_SEPARATOR
  
  public static final String PATH_SEPARATOR
- FILE_SEPARATOR
  
  public static final String FILE_SEPARATOR
  另请参阅:
  
  常量字段值
- USER_DIR
  
  public static final String USER_DIR
- DEFAULT_DATE_FORMAT
  
  public static final String DEFAULT_DATE_FORMAT
  另请参阅:
  
  常量字段值
- DEFAULT_TIME_FORMAT
  
  public static final String DEFAULT_TIME_FORMAT
  另请参阅:
  
  常量字段值
- DEFAULT_DATETIME_FORMAT
  
  public static final String DEFAULT_DATETIME_FORMAT
  另请参阅:
  
  常量字段值
- SYSTEM_START_TIME
  
  public static final Long SYSTEM_START_TIME
- PROCESSOR_COUNT
  
  public static final int PROCESSOR_COUNT
- RANDOM
  
  public static final Random RANDOM
方法详细资料
- isWindows
  
  public static boolean isWindows()
- toAbsolutePath
  
  public static String toAbsolutePath(String path)
- isDebug
  
  public static boolean isDebug()
- toBytes
  
  public static byte[] toBytes(long l, int wide, Endianness endianness)
- arrayToSet
  
  public static <T> Set<T> arrayToSet(T[] array)
- getUUIDStr
  
  @Deprecated public static String getUUIDStr()
  
  已过时。
  
  作为id时，使用IDGenerator.newId()替代
  获取uuid时，使用UUIDHelper.getUUIDString()
  
  返回:
  
  uuid
- sha1
  
  public static String sha1(String content)
- sha1
  
  public static String sha1(String content, Charset charset)
- inArray
  
  public static <T> boolean inArray(T el, T[] array)
- findInArray
  
  @Deprecated public static <T> int findInArray(T el, T[] array)
  
  已过时。
  indexOf(Object[], Object)
- nullToStr
  
  public static String nullToStr(String str)
- serialize
  
  public static byte[] serialize(Object object) throws IOException
  
  抛出:
  
  IOException
- deserialize
  
  public static Object deserialize(byte[] buf) throws IOException, ClassNotFoundException
  
  抛出:
  
  IOException
  
  ClassNotFoundException
- deepCopy
  
  public static <T extends Serializable> T deepCopy(T object) throws IOException, ClassNotFoundException
  
  抛出:
  
  IOException
  
  ClassNotFoundException
- random
  
  public static int random(int max)
  
  参数:
  
  max - 正整数
  
  返回:
  
  [0, max)的随机数
- randomC
  
  public static int randomC(int max)
  
  参数:
  
  max - 非负正数
  
  返回:
  
  [0, max]的随机数
- random
  
  public static int random(int min, int max)
- randomC
  
  public static int randomC(int min, int max)
- random
  
  public static long random(long min, long max)
- random
  
  public static long random(long max)
- randomC
  
  public static long randomC(long max)
- randomC
  
  public static long randomC(long min, long max)
- random
  
  public static double random(double min, double max)
- copyMap
  
  public static <K extends Serializable, V extends Serializable> void copyMap(Map<K,V> org, Map<K,V> target)
- isBlank
  
  public static boolean isBlank(String s)
- firstValuable
  
  @SafeVarargs public static <T> T firstValuable(T... s)
- isEmpty
  
  public static boolean isEmpty(Collection<?> collection)
- notEmpty
  
  public static boolean notEmpty(Collection<?> collection)
- copyStream
  
  public static void copyStream(InputStream is, OutputStream os) throws IOException
  
  抛出:
  
  IOException
- copyStream
  
  public static void copyStream(InputStream is, OutputStream os, int blockSize, boolean flushPerBlock, int bps) throws IOException
  
  抛出:
  
  IOException
- checkNull
  
  @Deprecated public static void checkNull(Object o, String msg)
  
  已过时。
  使用 Objects.requireNonNull(Object, String) 替代
- between
  
  @Deprecated public static <T extends Comparable<T>> boolean between(T t, T bound1, T bound2)
  
  已过时。
  使用 Common.Edge.between(Comparable, Comparable, Comparable)替代
- max
  
  @SafeVarargs public static <T extends Comparable<T>> T max(T c1, T c2, T... others)
- byte2hex
  
  @Deprecated public static String byte2hex(byte[] b)
  
  已过时。
- byte2hex
  
  @Deprecated public static String byte2hex(byte[] b, int offset, int length)
  
  已过时。
- byte2hex
  
  @Deprecated public static String byte2hex(byte[] b, int col, String split)
  
  已过时。
- byte2hex
  
  @Deprecated public static String byte2hex(byte[] b, int offset, int length, int col, String split)
  
  已过时。
- base16Encode
  
  public static String base16Encode(byte[] b)
  
  参数:
  
  b - 需要编码的字节数组
  
  返回:
  
  编码后的字符串
- base16Encode
  
  public static String base16Encode(byte[] b, int offset, int length)
  
  参数:
  
  b - 需要编码的字节数组
  
  offset - 编码字节数组偏移
  
  length - 编码字节数组长度
  
  返回:
  
  编码后的字符串
- base16Encode
  
  public static String base16Encode(byte[] b, int col, String split)
  
  参数:
  
  b - 需要编码的字节数组
  
  col - 每个字节编码后算一列，此参数用来指定编码后每行多少列，行与行之间使用系统变量line.separator来分隔
  
  split - 列于列之间的分隔字符传串，行首行尾不加
  
  返回:
  
  编码后的字符串
- base16Encode
  
  public static String base16Encode(byte[] b, Function<Integer,Integer> colFunction, String split)
  
  参数:
  
  b - 需要编码的字节数组
  
  colFunction - 每个字节编码后算一列，此参数用来指定编码后各行多少列，行与行之间使用系统变量line.separator来分隔
  
  split - 列于列之间的分隔字符传串，行首行尾不加
  
  返回:
  
  编码后的字符串
- base16Encode
  
  public static String base16Encode(byte[] b, int offset, int length, int col, String split)
  
  参数:
  
  b - 需要编码的字节数组
  
  offset - 编码字节数组偏移
  
  length - 编码字节数组长度
  
  col - 每个字节编码后算一列，此参数用来指定编码后每行多少列，行与行之间使用系统变量line.separator来分隔
  
  split - 列于列之间的分隔字符传串，行首行尾不加
  
  返回:
  
  编码后的字符串
- base16Encode
  
  public static String base16Encode(byte[] b, int offset, int length, Function<Integer,Integer> colFunction, String split)
  
  参数:
  
  b - 需要编码的字节数组
  
  offset - 编码字节数组偏移
  
  length - 编码字节数组长度
  
  colFunction - 每个字节编码后算一列，此参数用来指定编码后各行多少列，行与行之间使用系统变量line.separator来分隔
  
  split - 列于列之间的分隔字符传串，行首行尾不加
  
  返回:
  
  编码后的字符串
- formatArray
  
  public static <T> String formatArray(T[] array, int offset, int length, Function<Integer,Integer> colFunction, String split, Function<T,String> encoder)
- hex2byte
  
  @Deprecated public static byte[] hex2byte(String hexString)
  
  已过时。
- hex2byte
  
  @Deprecated public static byte[] hex2byte(String hexString, String ignoreChars)
  
  已过时。
- base16Decode
  
  public static byte[] base16Decode(String hexString)
- base16Decode
  
  public static byte[] base16Decode(String hexString, String ignoreChars)
- intersection
  
  public static <T> Set<T> intersection(Set<T> set1, Set<T> set2)
  
  交集
  
  参数:
  
  set1 - set1
  
  set2 - set2
  
  返回:
  
  交集
- difference
  
  public static <T> Set<T> difference(Set<T> org, Set<T> todiv)
  
  差集 org - todiv
  
  参数:
  
  org - org
  
  todiv - todiv
  
  返回:
  
  差集 org - todiv
- join
  
  @SafeVarargs public static <T, C extends Collection<T>> C join(C instance, Collection<? extends T>... collections)
- native2AscII
  
  public static String native2AscII(String str)
- getNewFile
  
  @Deprecated public static File getNewFile(String fileName) throws IOException
  
  已过时。
  
  抛出:
  
  IOException
- newFile
  
  public static File newFile(String fileName) throws IOException
  
  抛出:
  
  IOException
- getResource
  
  public static URL getResource(String resource, ClassLoader... classLoaders)
- indexOf
  
  public static <T> int indexOf(T[] array, T t)
- concat
  
  public static String concat(Collection<String> list, String split)
- to
  
  public static <T> T to(String str, T value)
- toInt
  
  public static int toInt(String str, Supplier<Integer> valueSupplier)
- toInt
  
  public static int toInt(String str, int value)
- toLong
  
  public static long toLong(String str, Supplier<Long> value)
- toLong
  
  public static long toLong(String str, long value)
- toBool
  
  public static boolean toBool(String str, Supplier<Boolean> v)
- toBool
  
  public static boolean toBool(String str, boolean v)
- toArray
  
  public static List<String> toArray(String str, String delim, List<String> v)
- toArray
  
  public static String[] toArray(String str, String delim, Supplier<String[]> v)
- toArray
  
  public static String[] toArray(String str, String delim, String[] v)
- trim
  
  public static String trim(String str, char... trimChars)
- trim
  
  public static String trim(String str, String toTrim)
- sameString
  
  @Deprecated public static boolean sameString(String str1, String str2)
  
  已过时。
- randomGB2312Char
  
  public static char randomGB2312Char()
  
  参考地址
  
  返回:
  
  一个随机的中文字符(GB2312的一级文字)
- randomChar
  
  public static char randomChar(String s)
- random
  
  public static <T> T random(T[] range)
- random
  
  public static byte random(byte[] range)
- random
  
  public static short random(short[] range)
- random
  
  public static int random(int[] range)
- random
  
  public static long random(long[] range)
- random
  
  public static float random(float[] range)
- random
  
  public static double random(double[] range)
- randomStr
  
  public static String randomStr(int min, int max, String range)
- copy
  
  public static Calendar copy(Calendar calendar)
- lowerFirstChar
  
  public static String lowerFirstChar(String string)
- upperFirstChar
  
  public static String upperFirstChar(String string)
- camelCase
  
  public static String camelCase(String s)
- camelCase
  
  public static String camelCase(String s, String delimiters)
- camelCase
  
  public static String camelCase(String s, boolean firstCharUpperCase)
- camelCase
  
  public static String camelCase(String s, boolean firstCharUpperCase, String delimiters)
- similarity
  
  public static double similarity(String s1, String s2)
  
  参数:
  
  s1 - s1
  
  s2 - s2
  
  返回:
  
  两个字符串的相似度
- subMap
  
  public static <T> Map<String,T> subMap(String prefix, Map<String,T> map)
- calendarToStr
  
  public static String calendarToStr(Calendar calendar, String format)
- calendarToStr
  
  public static String calendarToStr(Calendar calendar)
- dateToStr
  
  public static String dateToStr(Date date, String format)
- dateToStr
  
  public static String dateToStr(Date date)
- getSafetyDateFormat
  
  public static DateFormat getSafetyDateFormat(String format)
- strToDate
  
  public static Date strToDate(String str, String format) throws ParseException
  
  抛出:
  
  ParseException
- strToDate
  
  public static Date strToDate(String str) throws ParseException
  
  抛出:
  
  ParseException
- strToCalendar
  
  public static Calendar strToCalendar(String str, String format) throws ParseException
  
  抛出:
  
  ParseException
- long2Bytes
  
  public static byte[] long2Bytes(long data)
- longToDateStr
  
  public static String longToDateStr(long l)
- longToDateStr
  
  public static String longToDateStr(long l, String format)
- longToCalendar
  
  public static Calendar longToCalendar(long l)
- dateToCalendar
  
  public static Calendar dateToCalendar(Date date)
- min
  
  @SafeVarargs public static <T extends Comparable<T>> T min(T c1, T c2, T... others)
- calendar
  
  public static Calendar calendar(int year)
- calendar
  
  public static Calendar calendar(int year, int month)
- calendar
  
  public static Calendar calendar(int year, int month, int date)
- calendar
  
  public static Calendar calendar(int year, int month, int date, int hour)
- calendar
  
  public static Calendar calendar(int year, int month, int date, int hour, int minute)
- calendar
  
  public static Calendar calendar(int year, int month, int date, int hour, int minute, int second)
- calendar
  
  public static Calendar calendar(int year, int month, int date, int hour, int minute, int second, int millisecond)
- truncate
  
  public static Calendar truncate(Calendar calendar, int fromField)
- now
  
  public static String now()
- now
  
  public static String now(String format)
- rte
  
  public static RuntimeException rte(Throwable th)
- getSystemStart
  
  public static Long getSystemStart()
- cast
  
  public static <T> T cast(Object obj)
- sleep
  
  public static void sleep(long ms)
- forEachBlock
  
  public static <T> void forEachBlock(T[] all, int blockSize, boolean continuous, float redundancy, BiConsumer<Integer,Integer> consumer)
  
  对一个大数组进行分块操作
  
  类型参数:
  
  T - 元素类型
  
  参数:
  
  all - 所有的数据
  
  blockSize - 块大小
  
  continuous - 是否连续，[0,100),[100, last]为不连续,[0,100][100, last]为连续
  
  redundancy - 最后一块的冗余比例
  
  consumer - 每块数据如何处理
- forEachBlock
  
  public static <T> void forEachBlock(T[] all, int blockSize, boolean continuous, float redundancy, IntFunction<T[]> arrayProvider, Consumer<T[]> consumer)
  
  对一个大数组进行分块操作
  
  类型参数:
  
  T - T
  
  参数:
  
  all - 所有元素
  
  blockSize - 块大小
  
  continuous - 是否连续，[0,100),[100, last]为不连续,[0,100][100, last]为连续
  
  redundancy - 最后一块的冗余比例
  
  arrayProvider - 新数组如何创建
  
  consumer - 数组处理逻辑
- slice
  
  public static <T> Collection<Common.ArrayBlockRef> slice(T[] all, int blockSize, boolean continuous, float redundancy)
  
  将一个大数组分块
  
  类型参数:
  
  T - T
  
  参数:
  
  all - 大数组
  
  blockSize - 块大小
  
  continuous - 是否连续，[0,100),[100, last]为不连续,[0,100][100, last]为连续
  
  redundancy - 最后一块的冗余比例
  
  返回:
  
  拆分后的数组描述(从哪个下标开始，长度)
- isJava9AndLast
  
  public static boolean isJava9AndLast()
- scale
  
  public static long scale(double d)
- scale
  
  public static long scale(double d, RoundingMode roundingMode)
- scale2I
  
  public static int scale2I(double d)
- scale2I
  
  public static int scale2I(double d, RoundingMode roundingMode)
- scale2F
  
  public static float scale2F(double d, int scale)
- scale2F
  
  public static float scale2F(double d, int scale, RoundingMode roundingMode)
- scale
  
  public static double scale(double d, int scale)
- scale
  
  public static double scale(double d, int scale, RoundingMode roundingMode)
- sort
  
  public static <T> List<T> sort(List<T> list, Comparator<T> comparator)

类 Common

嵌套类概要

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

PATH_SEPARATOR

FILE_SEPARATOR

USER_DIR

DEFAULT_DATE_FORMAT

DEFAULT_TIME_FORMAT

DEFAULT_DATETIME_FORMAT

SYSTEM_START_TIME

PROCESSOR_COUNT

RANDOM

方法详细资料

isWindows

toAbsolutePath

isDebug

toBytes

arrayToSet

getUUIDStr

sha1

sha1

inArray

findInArray

nullToStr

serialize

deserialize

deepCopy

random

randomC

random

randomC

random

random

randomC

randomC

random

copyMap

isBlank

firstValuable

isEmpty

notEmpty

copyStream

copyStream

checkNull

between

max

byte2hex

byte2hex

byte2hex

byte2hex

base16Encode

base16Encode

base16Encode

base16Encode

base16Encode

base16Encode

formatArray

hex2byte

hex2byte

base16Decode

base16Decode

intersection

difference

join

native2AscII

getNewFile

newFile

getResource

indexOf

concat

to

toInt

toInt

toLong

toLong

toBool

toBool