com.sh.util

类 StringUtil

java.lang.Object

com.sh.util.StringUtil

public abstract class StringUtil
extends java.lang.Object

Description: 字符串工具类 Title:首亨软件 - CRM、TSS、ERP等信息化管理软件

版本:

1.0

作者:

江兴春

构造器概要

构造器

构造器和说明
StringUtil()

方法概要

限定符和类型	方法和说明
static java.lang.String[]	addStringToArray(java.lang.String[] array, java.lang.String str) Append the given String to the given String array, returning a new array consisting of the input array contents plus the given String.
static java.lang.String	applyRelativePath(java.lang.String path, java.lang.String relativePath) Apply the given relative path to the given Java resource path, assuming standard Java folder separation (i.e. "/" separators).
static java.lang.String	arrayToCommaDelimitedString(java.lang.Object[] arr) Convert a String array into a comma delimited String (i.e., CSV).
static java.lang.String	arrayToDelimitedString(java.lang.Object[] arr, java.lang.String delim) Convert a String array into a delimited String (e.g.
static java.lang.String	arrayToString(java.lang.String[] strs)
static java.lang.String	arrayToString(java.lang.String[] strs, java.lang.String separator, java.lang.String firstLastPrefix) 数组转化为字符串
static java.lang.String	byteToHexString(byte[] bytes) 将byte转化为16进制
static java.lang.String	byteToHexString(byte[] bytes, int start, int end) 将byte数据转化为16进制字符串
static java.lang.String	capitalize(java.lang.String str) Capitalize a String, changing the first letter to upper case as per Character.toUpperCase(char).
static boolean	checkSequence(java.lang.String str) 判断输入是否有效
static java.lang.String	cleanPath(java.lang.String path) Normalize the path by suppressing sequences like "path/.." and inner simple dots.
static java.lang.String	collectionToCommaDelimitedString(java.util.Collection<?> coll) Convert a Collection into a delimited String (e.g., CSV).
static java.lang.String	collectionToDelimitedString(java.util.Collection<?> coll, java.lang.String delim) Convert a Collection into a delimited String (e.g.
static java.lang.String	collectionToDelimitedString(java.util.Collection<?> coll, java.lang.String delim, java.lang.String prefix, java.lang.String suffix) Convert a Collection to a delimited String (e.g.
static java.util.Set<java.lang.String>	commaDelimitedListToSet(java.lang.String str) Convert a comma delimited list (e.g., a row from a CSV file) into a set.
static java.lang.String[]	commaDelimitedListToStringArray(java.lang.String str) Convert a comma delimited list (e.g., a row from a CSV file) into an array of strings.
static java.lang.String[]	concatenateStringArrays(java.lang.String[] array1, java.lang.String[] array2) Concatenate the given String arrays into one, with overlapping array elements included twice.
static boolean	containsWhitespace(java.lang.CharSequence str) Check whether the given CharSequence contains any whitespace characters.
static boolean	containsWhitespace(java.lang.String str) Check whether the given String contains any whitespace characters.
static java.lang.Double	convert2Double(java.lang.String str) 将字符串转化为Double对象
static java.lang.Integer	convert2Integer(java.lang.String str) 将字符串转化为整形对象
static java.lang.Long	convert2Long(java.lang.String str)
static java.lang.String	convertNull2Default(java.lang.String str, java.lang.String defaultValue)
static java.lang.String	convertNull2Empty(java.lang.String str) 判断字符串是否为空
static int	count(java.lang.CharSequence content, char charForSearch) 统计指定内容中包含指定字符的数量
static int	countOccurrencesOf(java.lang.String str, java.lang.String sub) Count the occurrences of the substring sub in string str.
static java.lang.String	cutContent(java.lang.String str, int len) 判断字符串是否超过指定长度的中文字符，超出则截取字符串返回，如果需要截取，则以...结尾
static java.lang.String	cutContent(java.lang.String str, int len, java.lang.String end) 判断字符串是否超过指定长度的中文字符，超出则截取字符串返回
static java.lang.String	decodeAES(java.lang.String estr) 解密字符串
static java.lang.String	decodeCharacter(java.lang.String str)
static java.lang.String	decorateStringLikeArray(java.lang.String[] str, java.lang.String left)
static java.lang.String	decorateStringLikeArray(java.lang.String[] array, java.lang.String left, java.lang.String right, java.lang.String regex)
static java.lang.String	decorateStringLikeArray(java.lang.String str, java.lang.String left) 修饰字符串
static java.lang.String	decorateStringLikeArray(java.lang.String str, java.lang.String left, java.lang.String right, java.lang.String regex) 修饰字符串
static java.lang.String	delete(java.lang.String inString, java.lang.String pattern) Delete all occurrences of the given substring.
static java.lang.String	deleteAny(java.lang.String inString, java.lang.String charsToDelete) Delete any character in a given String.
static java.lang.String[]	delimitedListToStringArray(java.lang.String str, java.lang.String delimiter) Take a String that is a delimited list and convert it into a String array.
static java.lang.String[]	delimitedListToStringArray(java.lang.String str, java.lang.String delimiter, java.lang.String charsToDelete) Take a String that is a delimited list and convert it into a String array.
static java.lang.String	encodeAES(java.lang.String str) 加密字符串
static java.lang.String	encodeCharacter(java.lang.String str)
static boolean	endsWithIgnoreCase(java.lang.String str, java.lang.String suffix) Test if the given String ends with the specified suffix, ignoring upper/lower case.
static boolean	equals(java.lang.String str1, java.lang.String str2) 判断两个字符串是否相等，包括同时为null
static java.lang.String	escapeHTML(java.lang.String string) Escapes HTML Special characters present in the string.
static java.lang.String	format(java.lang.String str, java.lang.Object... param) 格式化字符串
static java.util.List<java.lang.String>	getArgList(java.lang.String... args) 将给定的参数组合成List对象
static java.lang.String	getExceptionStackInfo(java.lang.Exception _ex)
static java.lang.String	getFilename(java.lang.String path) Extract the filename from the given Java resource path, e.g.
static java.lang.String	getFilenameExtension(java.lang.String path) Extract the filename extension from the given Java resource path,
static java.lang.String	getGUID()
static java.lang.String	getLineSeparator()
static java.lang.String	getStackTrace(java.lang.Thread t) 获取指定线程中的堆栈信息
static int	getWideCharCount(java.lang.String s) 字符串中包含的中文字符数
static int	hashCode(java.lang.String str) 返回正数的hashCode值
static boolean	hasLength(java.lang.CharSequence str)
static boolean	hasLength(java.lang.String str) Check that the given String is neither null nor of length 0.
static boolean	hasText(java.lang.CharSequence str)
static boolean	hasText(java.lang.String str) Check whether the given String contains actual text.
static boolean	hasUnicodeStr(java.lang.String str) 查找字符串是否存在中文字符
static byte[]	hexStringToByte(java.lang.String hex) 将16进制的字符串还原为byte数组
static java.lang.String	inputStream2String(java.io.InputStream is)
static java.lang.String	inputStream2String(java.io.InputStream is, java.lang.String addEnter, java.lang.String charset) 将字符中流转化为字符串
static boolean	isBlank(java.lang.String str) 是否空字符串
static boolean	isCharacter(java.lang.String str) 判断是否全为字母
static boolean	isCharacterOrDigit(java.lang.String str) 判断字符串是否为数字或字母
static boolean	isChinese(char c) 字符是否为汉字
static boolean	isDigit(java.lang.String str) 判断是否数字
static boolean	isEmpty(java.lang.Object str)
static boolean	isEmpty(java.lang.String str)
static boolean	isMessyCode(java.lang.String strName) 判断字符是否乱码
static boolean	isNotBlank(java.lang.String str) 是否非空字符串
static boolean	isNotEmpty(java.lang.String str)
static boolean	isStringHasWideChar(java.lang.String s) 如果至少有一个汉字，则返回真
static java.lang.String	lpad(java.lang.String str, int size, char padStr) 如果str的长度小于size,则会在字符串的左边增加padStr字符串
static java.lang.String	lpad(java.lang.String str, int size, java.lang.String padStr) 如果str的长度小于size,则会在字符串的左边增加padStr字符串
static void	main(java.lang.String[] args)
static java.lang.String[]	mergeStringArrays(java.lang.String[] array1, java.lang.String[] array2) Merge the given String arrays into one, with overlapping array elements only included once.
static java.lang.String	nameBeautify(java.lang.String str) 命名美化，仅支持将_去掉并将下一个单词转化为首字母大写
static java.util.Locale	parseLocaleString(java.lang.String localeString) Parse the given localeString value into a Locale.
static java.util.TimeZone	parseTimeZoneString(java.lang.String timeZoneString) Parse the given timeZoneString value into a TimeZone.
static boolean	pathEquals(java.lang.String path1, java.lang.String path2) Compare two paths after normalization of them.
static java.lang.String	quote(java.lang.String str) Quote the given String with single quotes.
static java.lang.Object	quoteIfString(java.lang.Object obj) Turn the given Object into a String with single quotes if it is a String; keeping the Object as-is else.
static java.lang.String[]	removeDuplicateStrings(java.lang.String[] array) Remove duplicate strings from the given array.
static java.lang.String	replace(java.lang.String inString, java.lang.String oldPattern, java.lang.String newPattern) Replace all occurrences of a substring within a string with another string.
static java.lang.String	replaceString(java.lang.String source, java.lang.String tag, java.lang.String value) 将指定字符串中的标记用相应的字符串替换掉
static java.lang.String	rpad(java.lang.String str, int size, char padStr) 如果str的长度小于size,则会在字符串的右边增加padStr字符串
static java.lang.String	rpad(java.lang.String str, int size, java.lang.String padStr) 如果str的长度小于size,则会在字符串的右边增加padStr字符串
static int	sizeof(java.lang.String str) 获取字符串占用字节数
static java.lang.String[]	sortStringArray(java.lang.String[] array) Turn given source String array into sorted array.
static java.util.List<java.lang.String>	split(java.lang.String text, char separator) 取代String.split (正则表达式） 效率提高1倍，同时避免 | 等字符引起的分隔问题
static java.lang.String[]	split(java.lang.String toSplit, java.lang.String delimiter) Split a String at the first occurrence of the delimiter.
static java.util.Properties	splitArrayElementsIntoProperties(java.lang.String[] array, java.lang.String delimiter) Take an array of strings and split each element based on the given delimiter.
static java.util.Properties	splitArrayElementsIntoProperties(java.lang.String[] array, java.lang.String delimiter, java.lang.String charsToDelete) Take an array of strings and split each element based on the given delimiter.
static boolean	startsWithIgnoreCase(java.lang.String str, java.lang.String prefix) Test if the given String starts with the specified prefix, ignoring upper/lower case.
static java.io.InputStream	String2InputStream(java.lang.String str) 将字符串转化为InputStream流对象
static java.lang.String	stringifyException(java.lang.Throwable e) 将堆栈里的数据转化为字符串
static java.lang.String	stripFilenameExtension(java.lang.String path) Strip the filename extension from the given Java resource path,
static boolean	substringMatch(java.lang.CharSequence str, int index, java.lang.CharSequence substring) Test whether the given string matches the given substring at the given index.
static java.lang.String	timeFormat(java.lang.Double sec) 格式化时间
static java.lang.String	timeFormat(int sec) 格式化时间
static java.lang.String	timeFormat(long time) 格式化时间
static java.lang.String	timeFormat(java.lang.String sec) 格式化时间
static java.lang.String	timeFormatFull(long time)
static java.lang.String[]	tokenizeToStringArray(java.lang.String str, java.lang.String delimiters) Tokenize the given String into a String array via a StringTokenizer.
static java.lang.String[]	tokenizeToStringArray(java.lang.String str, java.lang.String delimiters, boolean trimTokens, boolean ignoreEmptyTokens) Tokenize the given String into a String array via a StringTokenizer.
static java.lang.String	toLanguageTag(java.util.Locale locale) Determine the RFC 3066 compliant language tag, as used for the HTTP "Accept-Language" header.
static java.lang.String[]	toStringArray(java.util.Collection<java.lang.String> collection) Copy the given Collection into a String array.
static java.lang.String[]	toStringArray(java.util.Enumeration<java.lang.String> enumeration) Copy the given Enumeration into a String array.
static java.lang.String	trimAll(java.lang.String str) 清除所有空格
static java.lang.String	trimAllWhitespace(java.lang.String str) Trim all whitespace from the given String: leading, trailing, and in between characters.
static java.lang.String[]	trimArrayElements(java.lang.String[] array) Trim the elements of the given String array, calling String.trim() on each of them.
static java.lang.String	trimLeadingCharacter(java.lang.String str, char leadingCharacter) Trim all occurrences of the supplied leading character from the given String.
static java.lang.String	trimLeadingWhitespace(java.lang.String str) Trim leading whitespace from the given String.
static java.lang.String	trimTrailingCharacter(java.lang.String str, char trailingCharacter) Trim all occurrences of the supplied trailing character from the given String.
static java.lang.String	trimTrailingWhitespace(java.lang.String str) Trim trailing whitespace from the given String.
static java.lang.String	trimWhitespace(java.lang.String str) Trim leading and trailing whitespace from the given String.
static java.lang.String	uncapitalize(java.lang.String str) Uncapitalize a String, changing the first letter to lower case as per Character.toLowerCase(char).
static int	unicodeCount(java.lang.String str) 获取字符串中包括的字符数
static java.lang.String	unqualify(java.lang.String qualifiedName) Unqualify a string qualified by a '.' dot character.
static java.lang.String	unqualify(java.lang.String qualifiedName, char separator) Unqualify a string qualified by a separator character.

从类继承的方法 java.lang.Object

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

构造器详细资料

StringUtil

public StringUtil()

方法详细资料

isStringHasWideChar

public static boolean isStringHasWideChar(java.lang.String s)

如果至少有一个汉字，则返回真

参数:

s - 字符串

返回:

true|false

getWideCharCount

public static int getWideCharCount(java.lang.String s)

字符串中包含的中文字符数

参数:

s - 字符串

返回:

int

sizeof

public static int sizeof(java.lang.String str)

获取字符串占用字节数

参数:

str - String

返回:

int

getArgList

public static java.util.List<java.lang.String> getArgList(java.lang.String... args)

将给定的参数组合成List对象

参数:

args - 可变参数

返回:

List

isNotBlank

public static boolean isNotBlank(java.lang.String str)

是否非空字符串

参数:

str - String

返回:

boolean

isBlank

public static boolean isBlank(java.lang.String str)

是否空字符串

参数:

str - String

返回:

boolean

String2InputStream

public static java.io.InputStream String2InputStream(java.lang.String str)

将字符串转化为InputStream流对象

参数:

str - String

返回:

InputStream

inputStream2String

public static java.lang.String inputStream2String(java.io.InputStream is)

inputStream2String

public static java.lang.String inputStream2String(java.io.InputStream is,
                                                  java.lang.String addEnter,
                                                  java.lang.String charset)

将字符中流转化为字符串

参数:

is - InputStream

addEnter - 行后面添加换行标识

charset - String

返回:

String

split

public static java.util.List<java.lang.String> split(java.lang.String text,
                                                     char separator)

取代String.split (正则表达式） 效率提高1倍，同时避免 | 等字符引起的分隔问题

参数:

text - String

separator - char

返回:

List

convert2Double

public static java.lang.Double convert2Double(java.lang.String str)

将字符串转化为Double对象

参数:

str - String

返回:

Double

convert2Integer

public static java.lang.Integer convert2Integer(java.lang.String str)

将字符串转化为整形对象

参数:

str - String

返回:

Integer

convert2Long

public static java.lang.Long convert2Long(java.lang.String str)

convertNull2Empty

public static java.lang.String convertNull2Empty(java.lang.String str)

判断字符串是否为空

参数:

str - String

返回:

String

convertNull2Default

public static java.lang.String convertNull2Default(java.lang.String str,
                                                   java.lang.String defaultValue)

hasUnicodeStr

public static boolean hasUnicodeStr(java.lang.String str)

查找字符串是否存在中文字符

参数:

str - String

返回:

boolean

unicodeCount

public static int unicodeCount(java.lang.String str)

获取字符串中包括的字符数

参数:

str - String

返回:

int

checkSequence

public static boolean checkSequence(java.lang.String str)

判断输入是否有效

参数:

str - String

返回:

boolean

isDigit

public static boolean isDigit(java.lang.String str)

判断是否数字

参数:

str - String

返回:

boolean

isCharacter

public static boolean isCharacter(java.lang.String str)

判断是否全为字母

参数:

str - String

返回:

boolean

lpad

public static java.lang.String lpad(java.lang.String str,
                                    int size,
                                    java.lang.String padStr)

如果str的长度小于size,则会在字符串的左边增加padStr字符串

参数:

str - 源字符串

size - 最小长度

padStr - 填充字符串

返回:

String

lpad

public static java.lang.String lpad(java.lang.String str,
                                    int size,
                                    char padStr)

如果str的长度小于size,则会在字符串的左边增加padStr字符串

参数:

str - 源字符串

size - 最小长度

padStr - 填充字符

返回:

String

rpad

public static java.lang.String rpad(java.lang.String str,
                                    int size,
                                    java.lang.String padStr)

如果str的长度小于size,则会在字符串的右边增加padStr字符串

参数:

str - 源字符串

size - 最小长度

padStr - 填充字符串

返回:

String

rpad

public static java.lang.String rpad(java.lang.String str,
                                    int size,
                                    char padStr)

如果str的长度小于size,则会在字符串的右边增加padStr字符串

参数:

str - 源字符串

size - 最小长度

padStr - 填充字符

返回:

String

trimAll

public static java.lang.String trimAll(java.lang.String str)

清除所有空格

参数:

str - String

返回:

String

timeFormat

public static java.lang.String timeFormat(java.lang.String sec)

格式化时间

参数:

sec - 时间字符串(单位：秒)

返回:

00:00:00

timeFormat

public static java.lang.String timeFormat(java.lang.Double sec)

格式化时间

参数:

sec - 时间(单位：秒)

返回:

00:00:00

timeFormat

public static java.lang.String timeFormat(int sec)

格式化时间

参数:

sec - 时间(单位：秒)

返回:

00:00:00

timeFormat

public static java.lang.String timeFormat(long time)

格式化时间

参数:

time - 时间(单位：秒)

返回:

00:00:00

timeFormatFull

public static java.lang.String timeFormatFull(long time)

format

public static java.lang.String format(java.lang.String str,
                                      java.lang.Object... param)

格式化字符串

参数:

str - 形如：{0} weighed {2,number,##.#} kg on {1,date}

param - 参数，形如： new Object[] {"Petunia",new java.util.Date(),new Double(13.685)};

返回:

如：Petunia weighed 13.7 kg on Dec 5, 2004

replaceString

public static java.lang.String replaceString(java.lang.String source,
                                             java.lang.String tag,
                                             java.lang.String value)

将指定字符串中的标记用相应的字符串替换掉

参数:

source - 需要替换的字符串

tag - 标记

value - 替换值

返回:

相关标记被替换的字符串

isMessyCode

public static boolean isMessyCode(java.lang.String strName)

判断字符是否乱码

参数:

strName - 待检查字符串

返回:

boolean

isChinese

public static boolean isChinese(char c)

字符是否为汉字

参数:

c - char

返回:

boolean

isCharacterOrDigit

public static boolean isCharacterOrDigit(java.lang.String str)

判断字符串是否为数字或字母

参数:

str -

返回:

encodeAES

public static java.lang.String encodeAES(java.lang.String str)
                                  throws java.lang.Exception

加密字符串

参数:

str - String

返回:

String

抛出:

java.lang.Exception - Exception

decodeAES

public static java.lang.String decodeAES(java.lang.String estr)
                                  throws java.lang.Exception

解密字符串

参数:

estr - String

返回:

String

抛出:

java.lang.Exception - Exception

encodeCharacter

public static java.lang.String encodeCharacter(java.lang.String str)

decodeCharacter

public static java.lang.String decodeCharacter(java.lang.String str)

decorateStringLikeArray

public static java.lang.String decorateStringLikeArray(java.lang.String str,
                                                       java.lang.String left,
                                                       java.lang.String right,
                                                       java.lang.String regex)

修饰字符串

参数:

str - 待修饰字符串，如：01,02,03

left - 左边填充值

right - 右边填充值，为空是同左边

regex - 间隔值，为空时默认英文逗号

返回:

修饰后的值，如：'01','02','03'

decorateStringLikeArray

public static java.lang.String decorateStringLikeArray(java.lang.String[] array,
                                                       java.lang.String left,
                                                       java.lang.String right,
                                                       java.lang.String regex)

decorateStringLikeArray

public static java.lang.String decorateStringLikeArray(java.lang.String str,
                                                       java.lang.String left)

修饰字符串

参数:

str - 待修饰字符串，如：01,02,03

left - 左边填充值

返回:

修饰后的值，如：'01','02','03'

decorateStringLikeArray

public static java.lang.String decorateStringLikeArray(java.lang.String[] str,
                                                       java.lang.String left)

stringifyException

public static java.lang.String stringifyException(java.lang.Throwable e)

将堆栈里的数据转化为字符串

参数:

e - 堆栈

返回:

String

arrayToString

public static java.lang.String arrayToString(java.lang.String[] strs,
                                             java.lang.String separator,
                                             java.lang.String firstLastPrefix)

数组转化为字符串

参数:

strs - 数组

separator - 中间分隔符 默认逗号

firstLastPrefix - 每项中前后值 默认为单引号

返回:

arrayToString(new String[]{"a","b","c"},",","'") 如：[a,b,c] 转化为 'a','b','c'

arrayToString

public static java.lang.String arrayToString(java.lang.String[] strs)

byteToHexString

public static java.lang.String byteToHexString(byte[] bytes,
                                               int start,
                                               int end)

将byte数据转化为16进制字符串

参数:

bytes - 数组

start - 开始位置

end - 结束位置

返回:

String

byteToHexString

public static java.lang.String byteToHexString(byte[] bytes)

将byte转化为16进制

参数:

bytes - byte[]

返回:

String

hexStringToByte

public static byte[] hexStringToByte(java.lang.String hex)

将16进制的字符串还原为byte数组

参数:

hex - 16进制字符串

返回:

byte[]

nameBeautify

public static java.lang.String nameBeautify(java.lang.String str)

命名美化，仅支持将_去掉并将下一个单词转化为首字母大写

参数:

str - user_id

返回:

userId

equals

public static boolean equals(java.lang.String str1,
                             java.lang.String str2)

判断两个字符串是否相等，包括同时为null

参数:

str1 -

str2 -

返回:

escapeHTML

public static java.lang.String escapeHTML(java.lang.String string)

Escapes HTML Special characters present in the string.

参数:

string - String

返回:

HTML Escaped String representation

getStackTrace

public static java.lang.String getStackTrace(java.lang.Thread t)

获取指定线程中的堆栈信息

参数:

t - Thread

返回:

String

getLineSeparator

public static java.lang.String getLineSeparator()

cutContent

public static java.lang.String cutContent(java.lang.String str,
                                          int len)

判断字符串是否超过指定长度的中文字符，超出则截取字符串返回，如果需要截取，则以...结尾

参数:

str - 待判断的字符串

len - 中文字符个数

返回:

String

cutContent

public static java.lang.String cutContent(java.lang.String str,
                                          int len,
                                          java.lang.String end)

判断字符串是否超过指定长度的中文字符，超出则截取字符串返回

参数:

str - 待判断的字符串

len - 中文字符个数

end - 结尾符，默认：...

返回:

String

getGUID

public static java.lang.String getGUID()

isEmpty

public static boolean isEmpty(java.lang.Object str)

isEmpty

public static boolean isEmpty(java.lang.String str)

isNotEmpty

public static boolean isNotEmpty(java.lang.String str)

hasLength

public static boolean hasLength(java.lang.CharSequence str)

hasLength

public static boolean hasLength(java.lang.String str)

Check that the given String is neither null nor of length 0.

Note: this method returns true for a String that purely consists of whitespace.

参数:

str - the String to check (may be null)

返回:

true if the String is not null and has length

另请参阅:

hasLength(CharSequence), hasText(String)

hasText

public static boolean hasText(java.lang.CharSequence str)

hasText

public static boolean hasText(java.lang.String str)

Check whether the given String contains actual text.

More specifically, this method returns true if the String is not null, its length is greater than 0, and it contains at least one non-whitespace character.

参数:

str - the String to check (may be null)

返回:

true if the String is not null, its length is greater than 0, and it does not contain whitespace only

另请参阅:

hasText(CharSequence)

containsWhitespace

public static boolean containsWhitespace(java.lang.CharSequence str)

Check whether the given CharSequence contains any whitespace characters.

参数:

str - the CharSequence to check (may be null)

返回:

true if the CharSequence is not empty and contains at least 1 whitespace character

另请参阅:

Character.isWhitespace(char)

containsWhitespace

public static boolean containsWhitespace(java.lang.String str)

Check whether the given String contains any whitespace characters.

参数:

str - the String to check (may be null)

返回:

true if the String is not empty and contains at least 1 whitespace character

另请参阅:

containsWhitespace(CharSequence)

trimWhitespace

public static java.lang.String trimWhitespace(java.lang.String str)

Trim leading and trailing whitespace from the given String.

参数:

str - the String to check

返回:

the trimmed String

另请参阅:

Character.isWhitespace(char)

trimAllWhitespace

public static java.lang.String trimAllWhitespace(java.lang.String str)

Trim all whitespace from the given String: leading, trailing, and in between characters.

参数:

str - the String to check

返回:

the trimmed String

另请参阅:

Character.isWhitespace(char)

trimLeadingWhitespace

public static java.lang.String trimLeadingWhitespace(java.lang.String str)

Trim leading whitespace from the given String.

参数:

str - the String to check

返回:

the trimmed String

另请参阅:

Character.isWhitespace(char)

trimTrailingWhitespace

public static java.lang.String trimTrailingWhitespace(java.lang.String str)

Trim trailing whitespace from the given String.

参数:

str - the String to check

返回:

the trimmed String

另请参阅:

Character.isWhitespace(char)

trimLeadingCharacter

public static java.lang.String trimLeadingCharacter(java.lang.String str,
                                                    char leadingCharacter)

Trim all occurrences of the supplied leading character from the given String.

参数:

str - the String to check

leadingCharacter - the leading character to be trimmed

返回:

the trimmed String

trimTrailingCharacter

public static java.lang.String trimTrailingCharacter(java.lang.String str,
                                                     char trailingCharacter)

Trim all occurrences of the supplied trailing character from the given String.

参数:

str - the String to check

trailingCharacter - the trailing character to be trimmed

返回:

the trimmed String

startsWithIgnoreCase

public static boolean startsWithIgnoreCase(java.lang.String str,
                                           java.lang.String prefix)

Test if the given String starts with the specified prefix, ignoring upper/lower case.

参数:

str - the String to check

prefix - the prefix to look for

返回:

boolean

另请参阅:

String.startsWith(java.lang.String, int)

endsWithIgnoreCase

public static boolean endsWithIgnoreCase(java.lang.String str,
                                         java.lang.String suffix)

Test if the given String ends with the specified suffix, ignoring upper/lower case.

参数:

str - the String to check

suffix - the suffix to look for

返回:

boolean

另请参阅:

String.endsWith(java.lang.String)

substringMatch

public static boolean substringMatch(java.lang.CharSequence str,
                                     int index,
                                     java.lang.CharSequence substring)

Test whether the given string matches the given substring at the given index.

参数:

str - the original string (or StringBuilder)

index - the index in the original string to start matching against

substring - the substring to match at the given index

返回:

boolean

countOccurrencesOf

public static int countOccurrencesOf(java.lang.String str,
                                     java.lang.String sub)

Count the occurrences of the substring sub in string str.

参数:

str - string to search in

sub - string to search for

返回:

int

replace

public static java.lang.String replace(java.lang.String inString,
                                       java.lang.String oldPattern,
                                       java.lang.String newPattern)

Replace all occurrences of a substring within a string with another string.

参数:

inString - String to examine

oldPattern - String to replace

newPattern - String to insert

返回:

a String with the replacements

delete

public static java.lang.String delete(java.lang.String inString,
                                      java.lang.String pattern)

Delete all occurrences of the given substring.

参数:

inString - the original String

pattern - the pattern to delete all occurrences of

返回:

the resulting String

deleteAny

public static java.lang.String deleteAny(java.lang.String inString,
                                         java.lang.String charsToDelete)

Delete any character in a given String.

参数:

inString - the original String

charsToDelete - a set of characters to delete. E.g. "az\n" will delete 'a's, 'z's and new lines.

返回:

the resulting String

quote

public static java.lang.String quote(java.lang.String str)

Quote the given String with single quotes.

参数:

str - the input String (e.g. "myString")

返回:

the quoted String (e.g. "'myString'"), or null if the input was null

quoteIfString

public static java.lang.Object quoteIfString(java.lang.Object obj)

Turn the given Object into a String with single quotes if it is a String; keeping the Object as-is else.

参数:

obj - the input Object (e.g. "myString")

返回:

the quoted String (e.g. "'myString'"), or the input object as-is if not a String

unqualify

public static java.lang.String unqualify(java.lang.String qualifiedName)

Unqualify a string qualified by a '.' dot character. For example, "this.name.is.qualified", returns "qualified".

参数:

qualifiedName - the qualified name

返回:

String

unqualify

public static java.lang.String unqualify(java.lang.String qualifiedName,
                                         char separator)

Unqualify a string qualified by a separator character. For example, "this:name:is:qualified" returns "qualified" if using a ':' separator.

参数:

qualifiedName - the qualified name

separator - the separator

返回:

String

capitalize

public static java.lang.String capitalize(java.lang.String str)

Capitalize a String, changing the first letter to upper case as per Character.toUpperCase(char). No other letters are changed.

参数:

str - the String to capitalize

返回:

the capitalized String

uncapitalize

public static java.lang.String uncapitalize(java.lang.String str)

Uncapitalize a String, changing the first letter to lower case as per Character.toLowerCase(char). No other letters are changed.

参数:

str - the String to uncapitalize

返回:

the uncapitalized String

getFilename

public static java.lang.String getFilename(java.lang.String path)

Extract the filename from the given Java resource path, e.g. "mypath/myfile.txt" -> "myfile.txt".

参数:

path - the file path (may be null)

返回:

the extracted filename, or null if none

getFilenameExtension

public static java.lang.String getFilenameExtension(java.lang.String path)

Extract the filename extension from the given Java resource path,

参数:

path - the file path (may be null)

返回:

the extracted filename extension, or null if none

stripFilenameExtension

public static java.lang.String stripFilenameExtension(java.lang.String path)

Strip the filename extension from the given Java resource path,

参数:

path - the file path

返回:

the path with stripped filename extension

applyRelativePath

public static java.lang.String applyRelativePath(java.lang.String path,
                                                 java.lang.String relativePath)

Apply the given relative path to the given Java resource path, assuming standard Java folder separation (i.e. "/" separators).

参数:

path - the path to start from (usually a full file path)

relativePath - the relative path to apply (relative to the full file path above)

返回:

the full file path that results from applying the relative path

cleanPath

public static java.lang.String cleanPath(java.lang.String path)

Normalize the path by suppressing sequences like "path/.." and inner simple dots.

The result is convenient for path comparison. For other uses, notice that Windows separators ("\") are replaced by simple slashes.

参数:

path - the original path

返回:

the normalized path

pathEquals

public static boolean pathEquals(java.lang.String path1,
                                 java.lang.String path2)

Compare two paths after normalization of them.

参数:

path1 - first path for comparison

path2 - second path for comparison

返回:

whether the two paths are equivalent after normalization

parseLocaleString

public static java.util.Locale parseLocaleString(java.lang.String localeString)

Parse the given localeString value into a Locale.

This is the inverse operation of Locale's toString.

参数:

localeString - the locale String, following Locale's toString() format ("en", "en_UK", etc); also accepts spaces as separators, as an alternative to underscores

返回:

a corresponding Locale instance, or null if none

抛出:

java.lang.IllegalArgumentException - in case of an invalid locale specification

toLanguageTag

public static java.lang.String toLanguageTag(java.util.Locale locale)

Determine the RFC 3066 compliant language tag, as used for the HTTP "Accept-Language" header.

参数:

locale - the Locale to transform to a language tag

返回:

the RFC 3066 compliant language tag as String

parseTimeZoneString

public static java.util.TimeZone parseTimeZoneString(java.lang.String timeZoneString)

Parse the given timeZoneString value into a TimeZone.

参数:

timeZoneString - the time zone String, following TimeZone.getTimeZone(String) but throwing IllegalArgumentException in case of an invalid time zone specification

返回:

a corresponding TimeZone instance

抛出:

java.lang.IllegalArgumentException - in case of an invalid time zone specification

addStringToArray

public static java.lang.String[] addStringToArray(java.lang.String[] array,
                                                  java.lang.String str)

Append the given String to the given String array, returning a new array consisting of the input array contents plus the given String.

参数:

array - the array to append to (can be null)

str - the String to append

返回:

the new array (never null)

concatenateStringArrays

public static java.lang.String[] concatenateStringArrays(java.lang.String[] array1,
                                                         java.lang.String[] array2)

Concatenate the given String arrays into one, with overlapping array elements included twice.

The order of elements in the original arrays is preserved.

参数:

array1 - the first array (can be null)

array2 - the second array (can be null)

返回:

the new array (null if both given arrays were null)

mergeStringArrays

public static java.lang.String[] mergeStringArrays(java.lang.String[] array1,
                                                   java.lang.String[] array2)

Merge the given String arrays into one, with overlapping array elements only included once.

The order of elements in the original arrays is preserved (with the exception of overlapping elements, which are only included on their first occurrence).

参数:

array1 - the first array (can be null)

array2 - the second array (can be null)

返回:

the new array (null if both given arrays were null)

sortStringArray

public static java.lang.String[] sortStringArray(java.lang.String[] array)

Turn given source String array into sorted array.

参数:

array - the source array

返回:

the sorted array (never null)

toStringArray

public static java.lang.String[] toStringArray(java.util.Collection<java.lang.String> collection)

Copy the given Collection into a String array.

The Collection must contain String elements only.

参数:

collection - the Collection to copy

返回:

the String array

toStringArray

public static java.lang.String[] toStringArray(java.util.Enumeration<java.lang.String> enumeration)

Copy the given Enumeration into a String array. The Enumeration must contain String elements only.

参数:

enumeration - the Enumeration to copy

返回:

the String array

trimArrayElements

public static java.lang.String[] trimArrayElements(java.lang.String[] array)

Trim the elements of the given String array, calling String.trim() on each of them.

参数:

array - the original String array

返回:

the resulting array (of the same size) with trimmed elements

removeDuplicateStrings

public static java.lang.String[] removeDuplicateStrings(java.lang.String[] array)

Remove duplicate strings from the given array.

As of 4.2, it preserves the original order, as it uses a LinkedHashSet.

参数:

array - the String array

返回:

an array without duplicates, in natural sort order

split

public static java.lang.String[] split(java.lang.String toSplit,
                                       java.lang.String delimiter)

Split a String at the first occurrence of the delimiter. Does not include the delimiter in the result.

参数:

toSplit - the string to split

delimiter - to split the string up with

返回:

a two element array with index 0 being before the delimiter, and index 1 being after the delimiter (neither element includes the delimiter); or null if the delimiter wasn't found in the given input String

splitArrayElementsIntoProperties

public static java.util.Properties splitArrayElementsIntoProperties(java.lang.String[] array,
                                                                    java.lang.String delimiter)

Take an array of strings and split each element based on the given delimiter. A Properties instance is then generated, with the left of the delimiter providing the key, and the right of the delimiter providing the value.

Will trim both the key and value before adding them to the Properties instance.

参数:

array - the array to process

delimiter - to split each element using (typically the equals symbol)

返回:

a Properties instance representing the array contents, or null if the array to process was null or empty

splitArrayElementsIntoProperties

public static java.util.Properties splitArrayElementsIntoProperties(java.lang.String[] array,
                                                                    java.lang.String delimiter,
                                                                    java.lang.String charsToDelete)

Take an array of strings and split each element based on the given delimiter. A Properties instance is then generated, with the left of the delimiter providing the key, and the right of the delimiter providing the value.

Will trim both the key and value before adding them to the Properties instance.

参数:

array - the array to process

delimiter - to split each element using (typically the equals symbol)

charsToDelete - one or more characters to remove from each element prior to attempting the split operation (typically the quotation mark symbol), or null if no removal should occur

返回:

a Properties instance representing the array contents, or null if the array to process was null or empty

tokenizeToStringArray

public static java.lang.String[] tokenizeToStringArray(java.lang.String str,
                                                       java.lang.String delimiters)

Tokenize the given String into a String array via a StringTokenizer.

Trims tokens and omits empty tokens.

The given delimiters string can consist of any number of delimiter characters. Each of those characters can be used to separate tokens. A delimiter is always a single character; for multi-character delimiters, consider using delimitedListToStringArray(java.lang.String, java.lang.String).

参数:

str - the String to tokenize

delimiters - the delimiter characters, assembled as a String (each of the characters is individually considered as a delimiter)

返回:

an array of the tokens

另请参阅:

StringTokenizer, String.trim(), delimitedListToStringArray(java.lang.String, java.lang.String)

tokenizeToStringArray

public static java.lang.String[] tokenizeToStringArray(java.lang.String str,
                                                       java.lang.String delimiters,
                                                       boolean trimTokens,
                                                       boolean ignoreEmptyTokens)

Tokenize the given String into a String array via a StringTokenizer.

The given delimiters string can consist of any number of delimiter characters. Each of those characters can be used to separate tokens. A delimiter is always a single character; for multi-character delimiters, consider using delimitedListToStringArray(java.lang.String, java.lang.String).

参数:

str - the String to tokenize

delimiters - the delimiter characters, assembled as a String (each of the characters is individually considered as a delimiter)

trimTokens - trim the tokens via String.trim()

ignoreEmptyTokens - omit empty tokens from the result array (only applies to tokens that are empty after trimming; StringTokenizer will not consider subsequent delimiters as token in the first place).

返回:

an array of the tokens

另请参阅:

StringTokenizer, String.trim(), delimitedListToStringArray(java.lang.String, java.lang.String)

delimitedListToStringArray

public static java.lang.String[] delimitedListToStringArray(java.lang.String str,
                                                            java.lang.String delimiter)

Take a String that is a delimited list and convert it into a String array.

A single delimiter may consist of more than one character, but it will still be considered as a single delimiter string, rather than as bunch of potential delimiter characters, in contrast to tokenizeToStringArray(java.lang.String, java.lang.String).

参数:

str - the input String

delimiter - the delimiter between elements (this is a single delimiter, rather than a bunch individual delimiter characters)

返回:

an array of the tokens in the list

另请参阅:

tokenizeToStringArray(java.lang.String, java.lang.String)

delimitedListToStringArray

public static java.lang.String[] delimitedListToStringArray(java.lang.String str,
                                                            java.lang.String delimiter,
                                                            java.lang.String charsToDelete)

Take a String that is a delimited list and convert it into a String array.

A single delimiter may consist of more than one character, but it will still be considered as a single delimiter string, rather than as bunch of potential delimiter characters, in contrast to tokenizeToStringArray(java.lang.String, java.lang.String).

参数:

str - the input String

delimiter - the delimiter between elements (this is a single delimiter, rather than a bunch individual delimiter characters)

charsToDelete - a set of characters to delete; useful for deleting unwanted line breaks: e.g. "\r\n\f" will delete all new lines and line feeds in a String

返回:

an array of the tokens in the list

另请参阅:

tokenizeToStringArray(java.lang.String, java.lang.String)

commaDelimitedListToStringArray

public static java.lang.String[] commaDelimitedListToStringArray(java.lang.String str)

Convert a comma delimited list (e.g., a row from a CSV file) into an array of strings.

参数:

str - the input String

返回:

an array of strings, or the empty array in case of empty input

commaDelimitedListToSet

public static java.util.Set<java.lang.String> commaDelimitedListToSet(java.lang.String str)

Convert a comma delimited list (e.g., a row from a CSV file) into a set.

Note that this will suppress duplicates, and as of 4.2, the elements in the returned set will preserve the original order in a LinkedHashSet.

参数:

str - the input String

返回:

a set of String entries in the list

另请参阅:

removeDuplicateStrings(String[])

collectionToDelimitedString

public static java.lang.String collectionToDelimitedString(java.util.Collection<?> coll,
                                                           java.lang.String delim,
                                                           java.lang.String prefix,
                                                           java.lang.String suffix)

Convert a Collection to a delimited String (e.g. CSV).

Useful for toString() implementations.

参数:

coll - the Collection to convert

delim - the delimiter to use (typically a ",")

prefix - the String to start each element with

suffix - the String to end each element with

返回:

the delimited String

collectionToDelimitedString

public static java.lang.String collectionToDelimitedString(java.util.Collection<?> coll,
                                                           java.lang.String delim)

Convert a Collection into a delimited String (e.g. CSV).

Useful for toString() implementations.

参数:

coll - the Collection to convert

delim - the delimiter to use (typically a ",")

返回:

the delimited String

collectionToCommaDelimitedString

public static java.lang.String collectionToCommaDelimitedString(java.util.Collection<?> coll)

Convert a Collection into a delimited String (e.g., CSV).

Useful for toString() implementations.

参数:

coll - the Collection to convert

返回:

the delimited String

arrayToDelimitedString

public static java.lang.String arrayToDelimitedString(java.lang.Object[] arr,
                                                      java.lang.String delim)

Convert a String array into a delimited String (e.g. CSV).

Useful for toString() implementations.

参数:

arr - the array to display

delim - the delimiter to use (typically a ",")

返回:

the delimited String

arrayToCommaDelimitedString

public static java.lang.String arrayToCommaDelimitedString(java.lang.Object[] arr)

Convert a String array into a comma delimited String (i.e., CSV).

Useful for toString() implementations.

参数:

arr - the array to display

返回:

the delimited String

hashCode

public static int hashCode(java.lang.String str)

返回正数的hashCode值

参数:

str - String

返回:

int

getExceptionStackInfo

public static java.lang.String getExceptionStackInfo(java.lang.Exception _ex)

count

public static int count(java.lang.CharSequence content,
                        char charForSearch)

统计指定内容中包含指定字符的数量

参数:

content - 内容

charForSearch - 被统计的字符

返回:

包含数量

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

抛出:

java.lang.Exception