StringUtils (Bigbird Framework 1.0.0-SNAPSHOT API)

java.lang.Object
- wang.bigbird.domain.framework.core.StringUtils

```
public class StringUtils
extends Object
```
字符串操作工具类

作者:

Bigbird

字段概要

字段
限定符和类型	字段和说明
`static Pattern`	`DIGIT_PATTERN`
`static Pattern`	`EMAIL_PATTERN` 邮箱正则模式
`static Pattern`	`IP_PATTERN` IP正则模式 ^：表示字符串的起始位置。
`static Pattern`	`LOWER_PATTERN`
`static Pattern`	`MOBILE_PATTERN` 手机号正则模式，国家号码段分配如下：一、中国移动： 134(0-8)、135、136、137、138、139、144(物)、147、148(物)、150、151、152、157、158、159、165(虚)、1703(虚)、1705(虚)、1706(虚)、172(物)、178、182、183、184、187、188、195、197(5G)、198 二、中国联通： 130、131、132、140(物)、145、146(物)、155、156、166、167(虚)、1704(虚)、1707(虚)、1708(虚)、1709(虚)，171(虚)、175、176、185、186、196(5G) 三、中国电信： 133、1349(卫)、141(物)、149(物)、153、162(虚)、1700(虚)、1701(虚)、1702(虚)、173、1740(0-5)(卫)、177、179(虚)、180、181、189、190(5G)、191、193、199 四、中国广电： 192(5G) 五、其他： 1、中国交通通信信息中心 1749(卫) 2、工业和信息化部应急通信保障中心 1740(6-9)(卫)、1741(0-2)(卫)
`static Pattern`	`MOBILE_TELEPHONE_PATTERN` 电话号正则模式
`static Pattern`	`SPECIAL_PATTERN`
`static Pattern`	`TELEPHONE_PATTERN` 座机号正则模式
`static Pattern`	`UPPER_PATTERN`

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static String[]`	`addStringToArray(String[] array, 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 String`	`applyRelativePath(String path, String relativePath)` Apply the given relative path to the given Java resource path, assuming standard Java folder separation (i.e. "/" separators).
`static String`	`arrayToCommaDelimitedString(Object[] arr)` Convert a `String` array into a comma delimited `String` (i.e., CSV).
`static String`	`arrayToDelimitedString(Object[] arr, String delim)` Convert a `String` array into a delimited `String` (e.g.
`static String`	`bytesToHex(byte[] bytes)` 字节数组转十六进制字符串
`static String`	`capitalize(String str)` Capitalize a `String`, changing the first letter to upper case as per `Character.toUpperCase(char)`.
`static String`	`cleanPath(String path)` Normalize the path by suppressing sequences like "path/.." and inner simple dots.
`static String`	`collectionToCommaDelimitedString(Collection<?> coll)` Convert a `Collection` into a delimited `String` (e.g., CSV).
`static String`	`collectionToDelimitedString(Collection<?> coll, String delim)` Convert a `Collection` into a delimited `String` (e.g.
`static String`	`collectionToDelimitedString(Collection<?> coll, String delim, String prefix, String suffix)` Convert a `Collection` to a delimited `String` (e.g.
`static Set<String>`	`commaDelimitedListToSet(String str)` Convert a comma delimited list (e.g., a row from a CSV file) into a set.
`static String[]`	`commaDelimitedListToStringArray(String str)` Convert a comma delimited list (e.g., a row from a CSV file) into an array of strings.
`static String`	`compress(String str)` 压缩字符串，去除字符串中所有空白字符
`static String[]`	`concatenateStringArrays(String[] array1, String[] array2)` Concatenate the given `String` arrays into one, with overlapping array elements included twice.
`static boolean`	`containsDigit(String s)` 判断字符串是否包含数字
`static boolean`	`containsLower(String s)` 判断字符串是否包含小写字母
`static boolean`	`containsSpecial(String s)` 判断字符串是否包含特殊字符
`static boolean`	`containsUpper(String s)` 判断字符串是否包含大写字母
`static boolean`	`containsWhitespace(CharSequence str)` Check whether the given `CharSequence` contains any whitespace characters.
`static boolean`	`containsWhitespace(String str)` Check whether the given `String` contains any whitespace characters.
`static int`	`countOccurrencesOf(String str, String sub)` Count the occurrences of the substring `sub` in string `str`.
`static String`	`delete(String inString, String pattern)` Delete all occurrences of the given substring.
`static String`	`deleteAny(String inString, String charsToDelete)` Delete any character in a given `String`.
`static String[]`	`delimitedListToStringArray(String str, String delimiter)` Take a `String` that is a delimited list and convert it into a `String` array.
`static String[]`	`delimitedListToStringArray(String str, String delimiter, String charsToDelete)` Take a `String` that is a delimited list and convert it into a `String` array.
`static boolean`	`endsWithIgnoreCase(String str, String suffix)` Test if the given `String` ends with the specified suffix, ignoring upper/lower case.
`static String`	`filterChars(String str, String filterChars)` 删除字符串中的被过滤串包含的字符
`static String`	`getFileName(String path)` Extract the FileName from the given Java resource path, e.g.
`static String`	`getFileNameExtension(String path)` Extract the FileName extension from the given Java resource path, e.g.
`static int`	`getLength(String str)` 获取字符串的真实长度，对于一个中文字符按两个英文字符长度计算
`static String`	`getLineSeparator()` 获取行分隔符
`static String`	`getUniqueId(int length)` 获取指定长度的唯一性编码，该编码最长支持32位，并且不保证编码唯一的正确性，尤其在编码位数越小的时候，重复的可能性越大
`static String`	`getUUID()` 获取唯一性编码
`static boolean`	`hasLength(CharSequence str)` Check that the given `CharSequence` is neither `null` nor of length 0.
`static boolean`	`hasLength(String str)` Check that the given `String` is neither `null` nor of length 0.
`static boolean`	`hasText(CharSequence str)` Check whether the given `CharSequence` contains actual text.
`static boolean`	`hasText(String str)` Check whether the given `String` contains actual text.
`static byte[]`	`hexToByte(String hex)` 十六进制转字节数组
`static boolean`	`isBlank(CharSequence cs)` Checks if a CharSequence is empty (""), null or whitespace only.
`static boolean`	`isEmail(String str)` 是否是邮箱
`static boolean`	`isEmpty(Object str)` Check whether the given object (possibly a `String`) is empty.
`static boolean`	`isIp(String ip)` 判断字符串是否是IP地址
`static boolean`	`isMobilePhone(String mobiles)` 是否是手机号
`static boolean`	`isNotBlank(CharSequence cs)` Checks if a CharSequence is not empty (""), not null and not whitespace only.
`static boolean`	`isNumeric(String str)` 利用正则表达式判断字符串是否都是由数字构成
`static boolean`	`isTelePhone(String telePhone)` 是否是座机号码
`static String`	`joinStr(Object... strings)` 拼接字符串，该方法用于避免多个字符串采用+进行拼接
`static int`	`length(CharSequence cs)` Gets a CharSequence length or `0` if the CharSequence is `null`.
`static String`	`limitChars(String str, String limitChars)` 删除字符串中的不被限制串包含的字符
`static boolean`	`matchesCharacter(String str, char singleCharacter)` Test if the given `String` matches the given single character.
`static Locale`	`parseLocale(String localeValue)` Parse the given `String` value into a `Locale`, accepting the `Locale.toString()` format as well as BCP 47 language tags.
`static Locale`	`parseLocaleString(String localeString)` Parse the given `String` representation into a `Locale`.
`static TimeZone`	`parseTimeZoneString(String timeZoneString)` Parse the given `timeZoneString` value into a `TimeZone`.
`static boolean`	`pathEquals(String path1, String path2)` Compare two paths after normalization of them.
`static List<String>`	`pickUpEmail(String text)` 提取邮箱
`static List<String>`	`pickUpMobilePhone(String text)` 提取手机号码
`static List<String>`	`pickUpPhone(String text)` 提取电话号码或者手机号码
`static List<String>`	`pickUpRegex(String text, Pattern pattern)` 提取符合正则匹配模式的字符串信息集合
`static List<String>`	`pickUpTelePhone(String text)` 提取电话号码
`static String`	`processNullStr(String str)` 处理字符串，将空串转换为""
`static String`	`processNullStr(String str, String defaultValue)` 处理空字符串，将空字符串转换为默认字符串
`static String`	`processNumberStr(int length, String number)` 处理数字串，按照指定长度格式返回
`static String`	`processStrLength(int length, char c, boolean pre, String str)` 将字符串采用指定字符填充为最小指定长度的字符串
`static String`	`processStrLength(int length, char c, String str)` 采用尾部填充模式将字符串采用指定字符填充为最小指定长度的字符串
`static String`	`quote(String str)` Quote the given `String` with single quotes.
`static Object`	`quoteIfString(Object obj)` Turn the given Object into a `String` with single quotes if it is a `String`; keeping the Object as-is else.
`static String[]`	`removeDuplicateStrings(String[] array)` Remove duplicate strings from the given array.
`static String`	`replace(String inString, String oldPattern, String newPattern)` Replace all occurrences of a substring within a string with another string.
`static String[]`	`sortStringArray(String[] array)` Sort the given `String` array if necessary.
`static List<String>`	`split(String str, int length)` 将字符串按照指定长度进行分割，对于一个中文字符按两个英文字符长度计算，返回分割后的字符串集合
`static String[]`	`split(String toSplit, String delimiter)` Split a `String` at the first occurrence of the delimiter.
`static Properties`	`splitArrayElementsIntoProperties(String[] array, String delimiter)` Take an array of strings and split each element based on the given delimiter.
`static Properties`	`splitArrayElementsIntoProperties(String[] array, String delimiter, String charsToDelete)` Take an array of strings and split each element based on the given delimiter.
`static boolean`	`startsWithDigitCharacter(String str)` 判断字符串是否以数字开头
`static boolean`	`startsWithIgnoreCase(String str, String prefix)` Test if the given `String` starts with the specified prefix, ignoring upper/lower case.
`static boolean`	`startsWithLetterCharacter(String str)` 判断字符串是否以字母开头
`static String`	`stripFileNameExtension(String path)` Strip the FileName extension from the given Java resource path, e.g.
`static boolean`	`substringMatch(CharSequence str, int index, CharSequence substring)` Test whether the given string matches the given substring at the given index.
`static String[]`	`tokenizeToStringArray(String str, String delimiters)` Tokenize the given `String` into a `String` array via a `StringTokenizer`.
`static String[]`	`tokenizeToStringArray(String str, String delimiters, boolean trimTokens, boolean ignoreEmptyTokens)` Tokenize the given `String` into a `String` array via a `StringTokenizer`.
`static String[]`	`toStringArray(Collection<String> collection)` Copy the given `Collection` into a `String` array.
`static String[]`	`toStringArray(Enumeration<String> enumeration)` Copy the given `Enumeration` into a `String` array.
`static String`	`trimAllWhitespace(String str)` Trim all whitespace from the given `String`: leading, trailing, and in between characters.
`static String[]`	`trimArrayElements(String[] array)` Trim the elements of the given `String` array, calling `String.trim()` on each non-null element.
`static String`	`trimLeadingCharacter(String str, char leadingCharacter)` Trim all occurrences of the supplied leading character from the given `String`.
`static String`	`trimLeadingWhitespace(String str)` Trim leading whitespace from the given `String`.
`static String`	`trimTrailingCharacter(String str, char trailingCharacter)` Trim all occurrences of the supplied trailing character from the given `String`.
`static String`	`trimTrailingWhitespace(String str)` Trim trailing whitespace from the given `String`.
`static String`	`trimWhitespace(String str)` Trim leading and trailing whitespace from the given `String`.
`static String`	`uncapitalize(String str)` Uncapitalize a `String`, changing the first letter to lower case as per `Character.toLowerCase(char)`.
`static String`	`unqualify(String qualifiedName)` Unqualify a string qualified by a '.' dot character.
`static String`	`unqualify(String qualifiedName, char separator)` Unqualify a string qualified by a separator character.

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
  - IP_PATTERN
```
public static final Pattern IP_PATTERN
```
    IP正则模式
    ^：表示字符串的起始位置。 (25[0-5]|2[0-4]\\d|[01]?\\d?\\d)：用来匹配 IP 地址里每一段的数字，范围是 0 - 255。 25[0-5]：匹配 250 - 255。 2[0-4]\\d：匹配 200 - 249。 [01]?\\d?\\d：匹配 0 - 199。 \\.：匹配点号 {3}：表明前面的组合要重复 3 次，这和 IPv4 地址由 4 个数字段构成相符合。 $：表示字符串的结束位置。
  - MOBILE_PATTERN
```
public static final Pattern MOBILE_PATTERN
```
    手机号正则模式，国家号码段分配如下：
    一、中国移动： 134(0-8)、135、136、137、138、139、144(物)、147、148(物)、150、151、152、157、158、159、165(虚)、1703(虚)、1705(虚)、1706(虚)、172(物)、178、182、183、184、187、188、195、197(5G)、198
    二、中国联通： 130、131、132、140(物)、145、146(物)、155、156、166、167(虚)、1704(虚)、1707(虚)、1708(虚)、1709(虚)，171(虚)、175、176、185、186、196(5G)
    三、中国电信： 133、1349(卫)、141(物)、149(物)、153、162(虚)、1700(虚)、1701(虚)、1702(虚)、173、1740(0-5)(卫)、177、179(虚)、180、181、189、190(5G)、191、193、199
    四、中国广电： 192(5G)
    五、其他： 1、中国交通通信信息中心 1749(卫)
    2、工业和信息化部应急通信保障中心 1740(6-9)(卫)、1741(0-2)(卫)
  - TELEPHONE_PATTERN
```
public static final Pattern TELEPHONE_PATTERN
```
    座机号正则模式
  - MOBILE_TELEPHONE_PATTERN
```
public static final Pattern MOBILE_TELEPHONE_PATTERN
```
    电话号正则模式
  - EMAIL_PATTERN
```
public static final Pattern EMAIL_PATTERN
```
    邮箱正则模式
  - DIGIT_PATTERN
```
public static final Pattern DIGIT_PATTERN
```
  - LOWER_PATTERN
```
public static final Pattern LOWER_PATTERN
```
  - UPPER_PATTERN
```
public static final Pattern UPPER_PATTERN
```
  - SPECIAL_PATTERN
```
public static final Pattern SPECIAL_PATTERN
```
- 方法详细资料
  - isEmpty
```
public static boolean isEmpty(Object str)
```
    Check whether the given object (possibly a String) is empty. This is effectively a shortcut for !hasLength(String).
    This method accepts any Object as an argument, comparing it to null and the empty String. As a consequence, this method will never return true for a non-null non-String object.
    The Object signature is useful for general attribute handling code that commonly deals with Strings but generally has to iterate over Objects since attributes may e.g. be primitive value objects as well.
    Note: If the object is typed to String upfront, prefer hasLength(String) or hasText(String) instead.
    
    参数:
    
    str - the candidate object (possibly a String)
    
    从以下版本开始:
    
    3.2.1
    
    另请参阅:
    
    hasLength(String), hasText(String)
  - isBlank
```
public static boolean isBlank(CharSequence cs)
```
    Checks if a CharSequence is empty (""), null or whitespace only.
    
    Whitespace is defined by Character.isWhitespace(char).
```
 StringUtils.isBlank(null)      = true
 StringUtils.isBlank("")        = true
 StringUtils.isBlank(" ")       = true
 StringUtils.isBlank("bob")     = false
 StringUtils.isBlank("  bob  ") = false
 
```
    参数:
    
    cs - the CharSequence to check, may be null
    
    返回:
    
    true if the CharSequence is null, empty or whitespace only
    
    从以下版本开始:
    
    2.0, 3.0 Changed signature from isBlank(String) to isBlank(CharSequence)
  - isNotBlank
```
public static boolean isNotBlank(CharSequence cs)
```
    Checks if a CharSequence is not empty (""), not null and not whitespace only.
    
    Whitespace is defined by Character.isWhitespace(char).
```
 StringUtils.isNotBlank(null)      = false
 StringUtils.isNotBlank("")        = false
 StringUtils.isNotBlank(" ")       = false
 StringUtils.isNotBlank("bob")     = true
 StringUtils.isNotBlank("  bob  ") = true
 
```
    参数:
    
    cs - the CharSequence to check, may be null
    
    返回:
    
    true if the CharSequence is not empty and not null and not whitespace only
    
    从以下版本开始:
    
    2.0, 3.0 Changed signature from isNotBlank(String) to isNotBlank(CharSequence)
  - length
```
public static int length(CharSequence cs)
```
    Gets a CharSequence length or 0 if the CharSequence is null.
    
    参数:
    
    cs - a CharSequence or null
    
    返回:
    
    CharSequence length or 0 if the CharSequence is null.
    
    从以下版本开始:
    
    2.4, 3.0 Changed signature from length(String) to length(CharSequence)
  - hasLength
```
public static boolean hasLength(CharSequence str)
```
    Check that the given CharSequence is neither null nor of length 0.
    Note: this method returns true for a CharSequence that purely consists of whitespace.
```
 StringUtils.hasLength(null) = false
 StringUtils.hasLength("") = false
 StringUtils.hasLength(" ") = true
 StringUtils.hasLength("Hello") = true
 
```
    参数:
    
    str - the CharSequence to check (may be null)
    
    返回:
    
    true if the CharSequence is not null and has length
    
    另请参阅:
    
    hasLength(String), hasText(CharSequence)
  - hasLength
```
public static boolean hasLength(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(CharSequence str)
```
    Check whether the given CharSequence contains actual text.
    More specifically, this method returns true if the CharSequence is not null, its length is greater than 0, and it contains at least one non-whitespace character.
```
 StringUtils.hasText(null) = false
 StringUtils.hasText("") = false
 StringUtils.hasText(" ") = false
 StringUtils.hasText("12345") = true
 StringUtils.hasText(" 12345 ") = true
 
```
    参数:
    
    str - the CharSequence to check (may be null)
    
    返回:
    
    true if the CharSequence is not null, its length is greater than 0, and it does not contain whitespace only
    
    另请参阅:
    
    hasText(String), hasLength(CharSequence), Character.isWhitespace(char)
  - hasText
```
public static boolean hasText(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), hasLength(String), Character.isWhitespace(char)
  - containsWhitespace
```
public static boolean containsWhitespace(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(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 String trimWhitespace(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 String trimAllWhitespace(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 String trimLeadingWhitespace(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 String trimTrailingWhitespace(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 String trimLeadingCharacter(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 String trimTrailingCharacter(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
  - matchesCharacter
```
public static boolean matchesCharacter(String str,
                                       char singleCharacter)
```
    Test if the given String matches the given single character.
    
    参数:
    
    str - the String to check
    
    singleCharacter - the character to compare to
    
    从以下版本开始:
    
    5.2.9
  - startsWithIgnoreCase
```
public static boolean startsWithIgnoreCase(String str,
                                           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
    
    另请参阅:
    
    String.startsWith(java.lang.String, int)
  - endsWithIgnoreCase
```
public static boolean endsWithIgnoreCase(String str,
                                         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
    
    另请参阅:
    
    String.endsWith(java.lang.String)
  - substringMatch
```
public static boolean substringMatch(CharSequence str,
                                     int index,
                                     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
  - countOccurrencesOf
```
public static int countOccurrencesOf(String str,
                                     String sub)
```
    Count the occurrences of the substring sub in string str.
    
    参数:
    
    str - string to search in
    
    sub - string to search for
  - replace
```
public static String replace(String inString,
                             String oldPattern,
                             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 String delete(String inString,
                            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 String deleteAny(String inString,
                               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 String quote(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 Object quoteIfString(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 String unqualify(String qualifiedName)
```
    Unqualify a string qualified by a '.' dot character. For example, "this.name.is.qualified", returns "qualified".
    
    参数:
    
    qualifiedName - the qualified name
  - unqualify
```
public static String unqualify(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
  - capitalize
```
public static String capitalize(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 String uncapitalize(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 String getFileName(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 String getFileNameExtension(String path)
```
    Extract the FileName extension from the given Java resource path, e.g. "mypath/myfile.txt" -> "txt".
    
    参数:
    
    path - the file path (may be null)
    
    返回:
    
    the extracted FileName extension, or null if none
  - stripFileNameExtension
```
public static String stripFileNameExtension(String path)
```
    Strip the FileName extension from the given Java resource path, e.g. "mypath/myfile.txt" -> "mypath/myfile".
    
    参数:
    
    path - the file path
    
    返回:
    
    the path with stripped FileName extension
  - applyRelativePath
```
public static String applyRelativePath(String path,
                                       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 String cleanPath(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.
    NOTE that cleanPath should not be depended upon in a security context. Other mechanisms should be used to prevent path-traversal issues.
    
    参数:
    
    path - the original path
    
    返回:
    
    the normalized path
  - pathEquals
```
public static boolean pathEquals(String path1,
                                 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
  - parseLocale
```
public static Locale parseLocale(String localeValue)
```
    Parse the given String value into a Locale, accepting the Locale.toString() format as well as BCP 47 language tags.
    
    参数:
    
    localeValue - the locale value: following either Locale's toString() format ("en", "en_UK", etc), also accepting spaces as separators (as an alternative to underscores), or BCP 47 (e.g. "en-UK") as specified by Locale.forLanguageTag(java.lang.String) on Java 7+
    
    返回:
    
    a corresponding Locale instance, or null if none
    
    抛出:
    
    IllegalArgumentException - in case of an invalid locale specification
    
    从以下版本开始:
    
    5.0.4
    
    另请参阅:
    
    parseLocaleString(java.lang.String), Locale.forLanguageTag(java.lang.String)
  - parseLocaleString
```
public static Locale parseLocaleString(String localeString)
```
    Parse the given String representation into a Locale.
    For many parsing scenarios, this is an inverse operation of Locale's toString, in a lenient sense. This method does not aim for strict Locale design compliance; it is rather specifically tailored for typical Spring parsing needs.
    Note: This delegate does not accept the BCP 47 language tag format. Please use parseLocale(java.lang.String) for lenient parsing of both formats.
    
    参数:
    
    localeString - the locale String: following Locale's toString() format ("en", "en_UK", etc), also accepting spaces as separators (as an alternative to underscores)
    
    返回:
    
    a corresponding Locale instance, or null if none
    
    抛出:
    
    IllegalArgumentException - in case of an invalid locale specification
  - parseTimeZoneString
```
public static TimeZone parseTimeZoneString(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:
    
    IllegalArgumentException - in case of an invalid time zone specification
  - toStringArray
```
public static String[] toStringArray(Collection<String> collection)
```
    Copy the given Collection into a String array.
    The Collection must contain String elements only.
    
    参数:
    
    collection - the Collection to copy (potentially null or empty)
    
    返回:
    
    the resulting String array
  - toStringArray
```
public static String[] toStringArray(Enumeration<String> enumeration)
```
    Copy the given Enumeration into a String array.
    The Enumeration must contain String elements only.
    
    参数:
    
    enumeration - the Enumeration to copy (potentially null or empty)
    
    返回:
    
    the resulting String array
  - addStringToArray
```
public static String[] addStringToArray(String[] array,
                                        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 String[] concatenateStringArrays(String[] array1,
                                               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)
  - sortStringArray
```
public static String[] sortStringArray(String[] array)
```
    Sort the given String array if necessary.
    
    参数:
    
    array - the original array (potentially empty)
    
    返回:
    
    the array in sorted form (never null)
  - trimArrayElements
```
public static String[] trimArrayElements(String[] array)
```
    Trim the elements of the given String array, calling String.trim() on each non-null element.
    
    参数:
    
    array - the original String array (potentially empty)
    
    返回:
    
    the resulting array (of the same size) with trimmed elements
  - removeDuplicateStrings
```
public static String[] removeDuplicateStrings(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 (potentially empty)
    
    返回:
    
    an array without duplicates, in natural sort order
  - split
```
public static String[] split(String toSplit,
                             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 (potentially null or empty)
    
    delimiter - to split the string up with (potentially null or empty)
    
    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 Properties splitArrayElementsIntoProperties(String[] array,
                                                          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.
    
    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 Properties splitArrayElementsIntoProperties(String[] array,
                                                          String delimiter,
                                                          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 String[] tokenizeToStringArray(String str,
                                             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 (potentially null or empty)
    
    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 String[] tokenizeToStringArray(String str,
                                             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 (potentially null or empty)
    
    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 String[] delimitedListToStringArray(String str,
                                                  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 (potentially null or empty)
    
    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 String[] delimitedListToStringArray(String str,
                                                  String delimiter,
                                                  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 (potentially null or empty)
    
    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 String[] commaDelimitedListToStringArray(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 (potentially null or empty)
    
    返回:
    
    an array of strings, or the empty array in case of empty input
  - commaDelimitedListToSet
```
public static Set<String> commaDelimitedListToSet(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 (potentially null or empty)
    
    返回:
    
    a set of String entries in the list
    
    另请参阅:
    
    removeDuplicateStrings(String[])
  - collectionToDelimitedString
```
public static String collectionToDelimitedString(Collection<?> coll,
                                                 String delim,
                                                 String prefix,
                                                 String suffix)
```
    Convert a Collection to a delimited String (e.g. CSV).
    Useful for toString() implementations.
    
    参数:
    
    coll - the Collection to convert (potentially null or empty)
    
    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 String collectionToDelimitedString(Collection<?> coll,
                                                 String delim)
```
    Convert a Collection into a delimited String (e.g. CSV).
    Useful for toString() implementations.
    
    参数:
    
    coll - the Collection to convert (potentially null or empty)
    
    delim - the delimiter to use (typically a ",")
    
    返回:
    
    the delimited String
  - collectionToCommaDelimitedString
```
public static String collectionToCommaDelimitedString(Collection<?> coll)
```
    Convert a Collection into a delimited String (e.g., CSV).
    Useful for toString() implementations.
    
    参数:
    
    coll - the Collection to convert (potentially null or empty)
    
    返回:
    
    the delimited String
  - arrayToDelimitedString
```
public static String arrayToDelimitedString(Object[] arr,
                                            String delim)
```
    Convert a String array into a delimited String (e.g. CSV).
    Useful for toString() implementations.
    
    参数:
    
    arr - the array to display (potentially null or empty)
    
    delim - the delimiter to use (typically a ",")
    
    返回:
    
    the delimited String
  - arrayToCommaDelimitedString
```
public static String arrayToCommaDelimitedString(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 (potentially null or empty)
    
    返回:
    
    the delimited String
  - joinStr
```
public static String joinStr(Object... strings)
```
    拼接字符串，该方法用于避免多个字符串采用+进行拼接
    
    参数:
    
    strings -
    
    返回:
  - filterChars
```
public static String filterChars(String str,
                                 String filterChars)
```
    删除字符串中的被过滤串包含的字符
    
    参数:
    
    str - 待处理字符串
    
    filterChars - 过滤串
    
    返回:
    
    处理后字符串
  - limitChars
```
public static String limitChars(String str,
                                String limitChars)
```
    删除字符串中的不被限制串包含的字符
    
    参数:
    
    str - 待处理字符串
    
    limitChars - 限制串
    
    返回:
    
    处理后字符串
  - processNullStr
```
public static String processNullStr(String str)
```
    处理字符串，将空串转换为""
    
    参数:
    
    str - 待处理字符串
    
    返回:
    
    处理后字符串
  - processNullStr
```
public static String processNullStr(String str,
                                    String defaultValue)
```
    处理空字符串，将空字符串转换为默认字符串
    
    参数:
    
    str - 待处理字符串
    
    defaultValue - 默认值
    
    返回:
    
    处理后字符串
  - isIp
```
public static boolean isIp(String ip)
```
    判断字符串是否是IP地址
    
    参数:
    
    ip - 待判断IP字符串
    
    返回:
    
    是否是IP
  - isMobilePhone
```
public static boolean isMobilePhone(String mobiles)
```
    是否是手机号
    
    参数:
    
    mobiles -
    
    返回:
  - isTelePhone
```
public static boolean isTelePhone(String telePhone)
```
    是否是座机号码
    
    参数:
    
    telePhone -
    
    返回:
  - isEmail
```
public static boolean isEmail(String str)
```
    是否是邮箱
    
    参数:
    
    str -
    
    返回:
  - pickUpMobilePhone
```
public static List<String> pickUpMobilePhone(String text)
```
    提取手机号码
    
    参数:
    
    text -
    
    返回:
  - pickUpTelePhone
```
public static List<String> pickUpTelePhone(String text)
```
    提取电话号码
    
    参数:
    
    text -
    
    返回:
  - pickUpPhone
```
public static List<String> pickUpPhone(String text)
```
    提取电话号码或者手机号码
    
    参数:
    
    text -
    
    返回:
  - pickUpEmail
```
public static List<String> pickUpEmail(String text)
```
    提取邮箱
    
    参数:
    
    text -
    
    返回:
  - pickUpRegex
```
public static List<String> pickUpRegex(String text,
                                       Pattern pattern)
```
    提取符合正则匹配模式的字符串信息集合
    
    参数:
    
    text - 文本
    
    pattern - 正则匹配模式
    
    返回:
  - getUUID
```
public static String getUUID()
```
    获取唯一性编码
    
    返回:
    
    uuid
  - getUniqueId
```
public static String getUniqueId(int length)
```
    获取指定长度的唯一性编码，该编码最长支持32位，并且不保证编码唯一的正确性，尤其在编码位数越小的时候，重复的可能性越大
    
    参数:
    
    length - 编码长度
    
    返回:
    
    指定长度的随机编码
  - processNumberStr
```
public static String processNumberStr(int length,
                                      String number)
```
    处理数字串，按照指定长度格式返回
    
    参数:
    
    length - 指定长度
    
    number - 数字串
    
    返回:
    
    处理后指定长度的数字串
  - processStrLength
```
public static String processStrLength(int length,
                                      char c,
                                      String str)
```
    采用尾部填充模式将字符串采用指定字符填充为最小指定长度的字符串
    
    参数:
    
    length - 最小指定长度
    
    c - 指定字符
    
    str - 待填充字符串
    
    返回:
    
    处理后字符串
  - processStrLength
```
public static String processStrLength(int length,
                                      char c,
                                      boolean pre,
                                      String str)
```
    将字符串采用指定字符填充为最小指定长度的字符串
    
    参数:
    
    length - 最小指定长度
    
    c - 指定字符
    
    pre - 是否前缀填充模式
    
    str - 待填充字符串
    
    返回:
    
    处理后字符串
  - bytesToHex
```
public static String bytesToHex(byte[] bytes)
```
    字节数组转十六进制字符串
    
    参数:
    
    bytes - 字节数组
    
    返回:
    
    十六进制字符串
  - hexToByte
```
public static byte[] hexToByte(String hex)
```
    十六进制转字节数组
    
    参数:
    
    hex - 十六进制字符串
    
    返回:
    
    字节数组
  - getLineSeparator
```
public static String getLineSeparator()
```
    获取行分隔符
    
    返回:
  - compress
```
public static String compress(String str)
```
    压缩字符串，去除字符串中所有空白字符
    
    参数:
    
    str -
    
    返回:
  - isNumeric
```
public static boolean isNumeric(String str)
```
    利用正则表达式判断字符串是否都是由数字构成
    
    参数:
    
    str - 字符串
    
    返回:
    
    是否数字串
  - startsWithLetterCharacter
```
public static boolean startsWithLetterCharacter(String str)
```
    判断字符串是否以字母开头
    
    参数:
    
    str - 字符串
    
    返回:
    
    是否以字母开头
  - startsWithDigitCharacter
```
public static boolean startsWithDigitCharacter(String str)
```
    判断字符串是否以数字开头
    
    参数:
    
    str - 字符串
    
    返回:
    
    是否以数字开头
  - getLength
```
public static int getLength(String str)
```
    获取字符串的真实长度，对于一个中文字符按两个英文字符长度计算
    
    参数:
    
    str - 待计算字符串
    
    返回:
    
    字符真实长度
  - split
```
public static List<String> split(String str,
                                 int length)
```
    将字符串按照指定长度进行分割，对于一个中文字符按两个英文字符长度计算，返回分割后的字符串集合
    
    参数:
    
    str - 待分割字符串
    
    length - 分割长度
    
    返回:
    
    字符串集合
  - containsDigit
```
public static boolean containsDigit(String s)
```
    判断字符串是否包含数字
    
    参数:
    
    s - 字符串
    
    返回:
    
    是否包含数字
  - containsLower
```
public static boolean containsLower(String s)
```
    判断字符串是否包含小写字母
    
    参数:
    
    s - 字符串
    
    返回:
    
    是否包含小写字母
  - containsUpper
```
public static boolean containsUpper(String s)
```
    判断字符串是否包含大写字母
    
    参数:
    
    s - 字符串
    
    返回:
    
    是否包含大写字母
  - containsSpecial
```
public static boolean containsSpecial(String s)
```
    判断字符串是否包含特殊字符
    
    参数:
    
    s - 字符串
    
    返回:
    
    是否包含特殊字符

类 StringUtils

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

IP_PATTERN

MOBILE_PATTERN

TELEPHONE_PATTERN

MOBILE_TELEPHONE_PATTERN

EMAIL_PATTERN

DIGIT_PATTERN

LOWER_PATTERN

UPPER_PATTERN

SPECIAL_PATTERN

方法详细资料

isEmpty

isBlank

isNotBlank

length

hasLength

hasLength

hasText

hasText

containsWhitespace

containsWhitespace

trimWhitespace

trimAllWhitespace

trimLeadingWhitespace

trimTrailingWhitespace

trimLeadingCharacter

trimTrailingCharacter

matchesCharacter

startsWithIgnoreCase

endsWithIgnoreCase

substringMatch

countOccurrencesOf

replace

delete

deleteAny

quote

quoteIfString

unqualify

unqualify

capitalize

uncapitalize

getFileName

getFileNameExtension

stripFileNameExtension

applyRelativePath

cleanPath

pathEquals

parseLocale

parseLocaleString

parseTimeZoneString

toStringArray

toStringArray

addStringToArray

concatenateStringArrays

sortStringArray

trimArrayElements

removeDuplicateStrings

split

splitArrayElementsIntoProperties

splitArrayElementsIntoProperties

tokenizeToStringArray

tokenizeToStringArray

delimitedListToStringArray

delimitedListToStringArray

commaDelimitedListToStringArray

commaDelimitedListToSet

collectionToDelimitedString

collectionToDelimitedString

collectionToCommaDelimitedString

arrayToDelimitedString

arrayToCommaDelimitedString

joinStr

filterChars

limitChars

processNullStr

processNullStr