StringUtil (sofa-common-tools 1.0.17 API)

java.lang.Object
- com.alipay.sofa.common.utils.StringUtil

```
public class StringUtil
extends Object
```
版本:

$Id: StringUtil.java, v 0.1 2017年08月01日上午11:41 luoguimu123 Exp $

作者:

luoguimu123

字段概要

字段
限定符和类型字段和说明

static String EMPTY_STRING

字段
限定符和类型	字段和说明
`static String`	`EMPTY_STRING`

构造器概要

构造器
构造器和说明

StringUtil()

构造器
构造器和说明
`StringUtil()`

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`	`abbreviate(String str, int maxWidth)`
`static String`	`abbreviate(String str, int offset, int maxWidth)`
`static String`	`alignLeft(String str, int size)`
`static String`	`alignLeft(String str, int size, char padChar)`
`static String`	`alignLeft(String str, int size, String padStr)`
`static String`	`alignRight(String str, int size)`
`static String`	`alignRight(String str, int size, char padChar)`
`static String`	`alignRight(String str, int size, String padStr)`
`static String`	`capitalize(String str)`
`static String`	`center(String str, int size)`
`static String`	`center(String str, int size, char padChar)`
`static String`	`center(String str, int size, String padStr)`
`static String`	`chomp(String str)`
`static String`	`chomp(String str, String separator)`
`static String`	`chop(String str)`
`static boolean`	`contains(String str, char searchChar)`
`static boolean`	`contains(String str, String searchStr)`
`static boolean`	`containsNone(String str, char[] invalid)`
`static boolean`	`containsNone(String str, String invalidChars)`
`static boolean`	`containsOnly(String str, char[] valid)`
`static boolean`	`containsOnly(String str, String valid)`
`static int`	`countMatches(String str, String subStr)`
`static String`	`defaultIfBlank(String str)`
`static String`	`defaultIfBlank(String str, String defaultStr)`
`static String`	`defaultIfEmpty(String str)`
`static String`	`defaultIfEmpty(String str, String defaultStr)`
`static String`	`defaultIfNull(String str)`
`static String`	`defaultIfNull(String str, String defaultStr)`
`static String`	`deleteWhitespace(String str)`
`static String`	`difference(String str1, String str2)`
`static boolean`	`equals(String str1, String str2)`
`static boolean`	`equalsIgnoreCase(String str1, String str2)`
`static int`	`getLevenshteinDistance(String s, String t)`
`static int`	`indexOf(String str, char searchChar)`
`static int`	`indexOf(String str, char searchChar, int startPos)`
`static int`	`indexOf(String str, String searchStr)`
`static int`	`indexOf(String str, String searchStr, int startPos)`
`static int`	`indexOfAny(String str, char[] searchChars)`
`static int`	`indexOfAny(String str, String searchChars)`
`static int`	`indexOfAny(String str, String[] searchStrs)`
`static int`	`indexOfAnyBut(String str, char[] searchChars)`
`static int`	`indexOfAnyBut(String str, String searchChars)`
`static int`	`indexOfDifference(String str1, String str2)`
`static boolean`	`isAlpha(String str)`
`static boolean`	`isAlphanumeric(String str)`
`static boolean`	`isAlphanumericSpace(String str)`
`static boolean`	`isAlphaSpace(String str)`
`static boolean`	`isBlank(String str)`
`static boolean`	`isEmpty(String str)`
`static boolean`	`isNotBlank(String str)`
`static boolean`	`isNotEmpty(String str)`
`static boolean`	`isNumeric(String str)`
`static boolean`	`isNumericSpace(String str)`
`static boolean`	`isWhitespace(String str)`
`static String`	`join(Iterator iterator, char separator)`
`static String`	`join(Iterator iterator, String separator)`
`static String`	`join(Object[] array)`
`static String`	`join(Object[] array, char separator)`
`static String`	`join(Object[] array, String separator)`
`static int`	`lastIndexOf(String str, char searchChar)`
`static int`	`lastIndexOf(String str, char searchChar, int startPos)`
`static int`	`lastIndexOf(String str, String searchStr)`
`static int`	`lastIndexOf(String str, String searchStr, int startPos)`
`static int`	`lastIndexOfAny(String str, String[] searchStrs)`
`static String`	`left(String str, int len)`
`static String`	`mid(String str, int pos, int len)`
`static String`	`overlay(String str, String overlay, int start, int end)`
`static String`	`repeat(String str, int repeat)`
`static String`	`replace(String text, String repl, String with)`
`static String`	`replace(String text, String repl, String with, int max)`
`static String`	`replaceChars(String str, char searchChar, char replaceChar)`
`static String`	`replaceChars(String str, String searchChars, String replaceChars)`
`static String`	`replaceOnce(String text, String repl, String with)`
`static String`	`reverse(String str)`
`static String`	`reverseDelimited(String str, char separatorChar)`
`static String`	`reverseDelimited(String str, String separatorChars, String separator)`
`static String`	`right(String str, int len)`
`static String[]`	`split(String str)`
`static String[]`	`split(String str, char separatorChar)`
`static String[]`	`split(String str, String separatorChars)`
`static String[]`	`split(String str, String separatorChars, int max)`
`static String`	`substring(String str, int start)`
`static String`	`substring(String str, int start, int end)`
`static String`	`substringAfter(String str, String separator)`
`static String`	`substringAfterLast(String str, String separator)`
`static String`	`substringBefore(String str, String separator)`
`static String`	`substringBeforeLast(String str, String separator)`
`static String`	`substringBetween(String str, String tag)`
`static String`	`substringBetween(String str, String open, String close)`
`static String`	`substringBetween(String str, String open, String close, int fromIndex)`
`static String`	`swapCase(String str)`
`static String`	`toCamelCase(String str)`
`static String`	`toLowerCase(String str)`
`static String`	`toLowerCaseWithUnderscores(String str)`
`static String`	`toPascalCase(String str)`
`static String`	`toUpperCase(String str)`
`static String`	`toUpperCaseWithUnderscores(String str)`
`static String`	`trim(String str)`
`static String`	`trim(String str, String stripChars)`
`static String`	`trimEnd(String str)`
`static String`	`trimEnd(String str, String stripChars)`
`static String`	`trimStart(String str)`
`static String`	`trimStart(String str, String stripChars)`
`static String`	`trimToEmpty(String str)`
`static String`	`trimToEmpty(String str, String stripChars)`
`static String`	`trimToNull(String str)`
`static String`	`trimToNull(String str, String stripChars)`
`static String`	`uncapitalize(String str)`

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
- EMPTY_STRING
```
public static final String EMPTY_STRING
```
  另请参阅:
  
  常量字段值

构造器详细资料
- StringUtil
```
public StringUtil()
```

方法详细资料

isEmpty

public static boolean isEmpty(String str)

isNotEmpty

public static boolean isNotEmpty(String str)

isBlank

public static boolean isBlank(String str)

isNotBlank

public static boolean isNotBlank(String str)

defaultIfNull

public static String defaultIfNull(String str)

defaultIfNull

public static String defaultIfNull(String str,
                                   String defaultStr)

defaultIfEmpty

public static String defaultIfEmpty(String str)

defaultIfEmpty

public static String defaultIfEmpty(String str,
                                    String defaultStr)

defaultIfBlank

public static String defaultIfBlank(String str)

defaultIfBlank

public static String defaultIfBlank(String str,
                                    String defaultStr)

trim

public static String trim(String str)

trim

public static String trim(String str,
                          String stripChars)

trimStart

public static String trimStart(String str)

trimStart

public static String trimStart(String str,
                               String stripChars)

trimEnd

public static String trimEnd(String str)

trimEnd

public static String trimEnd(String str,
                             String stripChars)

trimToNull

public static String trimToNull(String str)

trimToNull

public static String trimToNull(String str,
                                String stripChars)

trimToEmpty

public static String trimToEmpty(String str)

trimToEmpty

public static String trimToEmpty(String str,
                                 String stripChars)

equals

public static boolean equals(String str1,
                             String str2)

equalsIgnoreCase

public static boolean equalsIgnoreCase(String str1,
                                       String str2)

isAlpha

public static boolean isAlpha(String str)

isAlphaSpace

public static boolean isAlphaSpace(String str)

isAlphanumeric

public static boolean isAlphanumeric(String str)

isAlphanumericSpace

public static boolean isAlphanumericSpace(String str)

isNumeric

public static boolean isNumeric(String str)

isNumericSpace

public static boolean isNumericSpace(String str)

isWhitespace

public static boolean isWhitespace(String str)

toUpperCase

public static String toUpperCase(String str)

toLowerCase

public static String toLowerCase(String str)

capitalize

public static String capitalize(String str)

uncapitalize

public static String uncapitalize(String str)

swapCase

public static String swapCase(String str)

toCamelCase

public static String toCamelCase(String str)

toPascalCase

public static String toPascalCase(String str)

toUpperCaseWithUnderscores

public static String toUpperCaseWithUnderscores(String str)

toLowerCaseWithUnderscores

public static String toLowerCaseWithUnderscores(String str)

split

public static String[] split(String str)

split

public static String[] split(String str,
                             char separatorChar)

split

public static String[] split(String str,
                             String separatorChars)

split

public static String[] split(String str,
                             String separatorChars,
                             int max)

join

public static String join(Object[] array)

join

public static String join(Object[] array,
                          char separator)

join

public static String join(Object[] array,
                          String separator)

join

public static String join(Iterator iterator,
                          char separator)

join

public static String join(Iterator iterator,
                          String separator)

indexOf

public static int indexOf(String str,
                          char searchChar)

indexOf

public static int indexOf(String str,
                          char searchChar,
                          int startPos)

indexOf

public static int indexOf(String str,
                          String searchStr)

indexOf

public static int indexOf(String str,
                          String searchStr,
                          int startPos)

indexOfAny

public static int indexOfAny(String str,
                             char[] searchChars)

indexOfAny

public static int indexOfAny(String str,
                             String searchChars)

indexOfAny

public static int indexOfAny(String str,
                             String[] searchStrs)

indexOfAnyBut

public static int indexOfAnyBut(String str,
                                char[] searchChars)

indexOfAnyBut

public static int indexOfAnyBut(String str,
                                String searchChars)

lastIndexOf

public static int lastIndexOf(String str,
                              char searchChar)

lastIndexOf

public static int lastIndexOf(String str,
                              char searchChar,
                              int startPos)

lastIndexOf

public static int lastIndexOf(String str,
                              String searchStr)

lastIndexOf

public static int lastIndexOf(String str,
                              String searchStr,
                              int startPos)

lastIndexOfAny

public static int lastIndexOfAny(String str,
                                 String[] searchStrs)

contains

public static boolean contains(String str,
                               char searchChar)

contains

public static boolean contains(String str,
                               String searchStr)

containsOnly

public static boolean containsOnly(String str,
                                   char[] valid)

containsOnly

public static boolean containsOnly(String str,
                                   String valid)

containsNone

public static boolean containsNone(String str,
                                   char[] invalid)

containsNone

public static boolean containsNone(String str,
                                   String invalidChars)

countMatches

public static int countMatches(String str,
                               String subStr)

substring

public static String substring(String str,
                               int start)

substring

public static String substring(String str,
                               int start,
                               int end)

left

public static String left(String str,
                          int len)

right

public static String right(String str,
                           int len)

mid

public static String mid(String str,
                         int pos,
                         int len)

substringBefore

public static String substringBefore(String str,
                                     String separator)

substringAfter

public static String substringAfter(String str,
                                    String separator)

substringBeforeLast

public static String substringBeforeLast(String str,
                                         String separator)

substringAfterLast

public static String substringAfterLast(String str,
                                        String separator)

substringBetween

public static String substringBetween(String str,
                                      String tag)

substringBetween

public static String substringBetween(String str,
                                      String open,
                                      String close)

substringBetween

public static String substringBetween(String str,
                                      String open,
                                      String close,
                                      int fromIndex)

deleteWhitespace

public static String deleteWhitespace(String str)

replaceOnce

public static String replaceOnce(String text,
                                 String repl,
                                 String with)

replace

public static String replace(String text,
                             String repl,
                             String with)

replace

public static String replace(String text,
                             String repl,
                             String with,
                             int max)

replaceChars

public static String replaceChars(String str,
                                  char searchChar,
                                  char replaceChar)

replaceChars

public static String replaceChars(String str,
                                  String searchChars,
                                  String replaceChars)

overlay

public static String overlay(String str,
                             String overlay,
                             int start,
                             int end)

chomp

public static String chomp(String str)

chomp

public static String chomp(String str,
                           String separator)

chop

public static String chop(String str)

repeat

public static String repeat(String str,
                            int repeat)

alignLeft

public static String alignLeft(String str,
                               int size)

alignLeft

public static String alignLeft(String str,
                               int size,
                               char padChar)

alignLeft

public static String alignLeft(String str,
                               int size,
                               String padStr)

alignRight

public static String alignRight(String str,
                                int size)

alignRight

public static String alignRight(String str,
                                int size,
                                char padChar)

alignRight

public static String alignRight(String str,
                                int size,
                                String padStr)

center

public static String center(String str,
                            int size)

center

public static String center(String str,
                            int size,
                            char padChar)

center

public static String center(String str,
                            int size,
                            String padStr)

reverse

public static String reverse(String str)

reverseDelimited

public static String reverseDelimited(String str,
                                      char separatorChar)

reverseDelimited

public static String reverseDelimited(String str,
                                      String separatorChars,
                                      String separator)

abbreviate

public static String abbreviate(String str,
                                int maxWidth)

abbreviate

public static String abbreviate(String str,
                                int offset,
                                int maxWidth)

difference

public static String difference(String str1,
                                String str2)

indexOfDifference

public static int indexOfDifference(String str1,
                                    String str2)

getLevenshteinDistance

public static int getLevenshteinDistance(String s,
                                         String t)

类 StringUtil

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

EMPTY_STRING

构造器详细资料

StringUtil

方法详细资料

isEmpty

isNotEmpty

isBlank

isNotBlank

defaultIfNull

defaultIfNull

defaultIfEmpty

defaultIfEmpty

defaultIfBlank

defaultIfBlank

trim

trim

trimStart

trimStart

trimEnd

trimEnd

trimToNull

trimToNull

trimToEmpty

trimToEmpty

equals

equalsIgnoreCase

isAlpha

isAlphaSpace

isAlphanumeric

isAlphanumericSpace

isNumeric

isNumericSpace

isWhitespace

toUpperCase

toLowerCase

capitalize

uncapitalize

swapCase

toCamelCase

toPascalCase

toUpperCaseWithUnderscores

toLowerCaseWithUnderscores

split

split

split

split

join

join

join

join

join

indexOf

indexOf

indexOf

indexOf

indexOfAny

indexOfAny

indexOfAny

indexOfAnyBut

indexOfAnyBut

lastIndexOf

lastIndexOf

lastIndexOf

lastIndexOf

lastIndexOfAny

contains

contains

containsOnly

containsOnly

containsNone

containsNone

countMatches

substring

substring