java.lang.Object

org.apache.commons.lang3.StringUtils

cn.jrack.core.util.common.StringUtil

public class StringUtil extends org.apache.commons.lang3.StringUtils

字符串工具类

字段概要

从类继承的字段 org.apache.commons.lang3.StringUtils
CR, EMPTY, INDEX_NOT_FOUND, LF, SPACE
构造器概要

构造器

构造器

说明

StringUtil()
方法概要

修饰符和类型

方法

说明

static <T> T

cast(Object obj)

static String

convertToCamelCase(String name)

将下划线大写方式命名的字符串转换为驼峰式。

static String

format(String template, Object... params)

格式化文本, {} 表示占位符
此方法只是简单将占位符 {} 按照顺序替换为参数
如果想输出 {} 使用 \\转义 { 即可，如果想输出 {} 之前的 \ 使用双转义符 \\\\ 即可
例：
通常使用：format("this is {} for {}", "a", "b") -> this is a for b
转义{}： format("this is \\{} for {}", "a", "b") -> this is \{} for a
转义\： format("this is \\\\{} for {}", "a", "b") -> this is \a for b

static boolean

inStringIgnoreCase(String str, String... strs)

是否包含字符串

static boolean

isArray(Object object)

* 判断一个对象是否是数组类型（Java基本型别的数组）

static boolean

isEmpty(Object[] objects)

* 判断一个对象数组是否为空

static boolean

isEmpty(String str)

* 判断一个字符串是否为空串

static boolean

isEmpty(Collection<?> coll)

* 判断一个Collection是否为空，包含List，Set，Queue

static boolean

isEmpty(Map<?,?> map)

* 判断一个Map是否为空

static boolean

isNotEmpty(Object[] objects)

* 判断一个对象数组是否非空

static boolean

isNotEmpty(String str)

* 判断一个字符串是否为非空串

static boolean

isNotEmpty(Collection<?> coll)

* 判断一个Collection是否非空，包含List，Set，Queue

static boolean

isNotEmpty(Map<?,?> map)

* 判断一个Map是否为空

static boolean

isNotNull(Object object)

* 判断一个对象是否非空

static boolean

isNull(Object object)

* 判断一个对象是否为空

static <T> T

nvl(T value, T defaultValue)

获取参数不为空值

static String

substring(String str, int start)

截取字符串

static String

substring(String str, int start, int end)

截取字符串

static String

toCamelCase(String s)

驼峰式命名法例如：user_name->userName

static String

toUnderLineCase(String name)

驼峰转下划线例如：userName->user_name

static String

toUnderScoreCase(String str)

下划线转驼峰命名

static String

trim(String str)

去空格

从类继承的方法 org.apache.commons.lang3.StringUtils
abbreviate, abbreviate, abbreviate, abbreviate, abbreviateMiddle, appendIfMissing, appendIfMissingIgnoreCase, capitalize, center, center, center, chomp, chomp, chop, compare, compare, compareIgnoreCase, compareIgnoreCase, contains, contains, containsAny, containsAny, containsAny, containsAnyIgnoreCase, containsIgnoreCase, containsNone, containsNone, containsOnly, containsOnly, containsWhitespace, countMatches, countMatches, defaultIfBlank, defaultIfEmpty, defaultString, defaultString, deleteWhitespace, difference, endsWith, endsWithAny, endsWithIgnoreCase, equals, equalsAny, equalsAnyIgnoreCase, equalsIgnoreCase, firstNonBlank, firstNonEmpty, getBytes, getBytes, getCommonPrefix, getDigits, getFuzzyDistance, getIfBlank, getIfEmpty, getJaroWinklerDistance, getLevenshteinDistance, getLevenshteinDistance, indexOf, indexOf, indexOf, indexOf, indexOfAny, indexOfAny, indexOfAny, indexOfAnyBut, indexOfAnyBut, indexOfDifference, indexOfDifference, indexOfIgnoreCase, indexOfIgnoreCase, isAllBlank, isAllEmpty, isAllLowerCase, isAllUpperCase, isAlpha, isAlphanumeric, isAlphanumericSpace, isAlphaSpace, isAnyBlank, isAnyEmpty, isAsciiPrintable, isBlank, isEmpty, isMixedCase, isNoneBlank, isNoneEmpty, isNotBlank, isNotEmpty, isNumeric, isNumericSpace, isWhitespace, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, join, joinWith, lastIndexOf, lastIndexOf, lastIndexOf, lastIndexOf, lastIndexOfAny, lastIndexOfIgnoreCase, lastIndexOfIgnoreCase, lastOrdinalIndexOf, left, leftPad, leftPad, leftPad, length, lowerCase, lowerCase, mid, normalizeSpace, ordinalIndexOf, overlay, prependIfMissing, prependIfMissingIgnoreCase, remove, remove, removeAll, removeEnd, removeEndIgnoreCase, removeFirst, removeIgnoreCase, removePattern, removeStart, removeStartIgnoreCase, repeat, repeat, repeat, replace, replace, replaceAll, replaceChars, replaceChars, replaceEach, replaceEachRepeatedly, replaceFirst, replaceIgnoreCase, replaceIgnoreCase, replaceOnce, replaceOnceIgnoreCase, replacePattern, reverse, reverseDelimited, right, rightPad, rightPad, rightPad, rotate, split, split, split, split, splitByCharacterType, splitByCharacterTypeCamelCase, splitByWholeSeparator, splitByWholeSeparator, splitByWholeSeparatorPreserveAllTokens, splitByWholeSeparatorPreserveAllTokens, splitPreserveAllTokens, splitPreserveAllTokens, splitPreserveAllTokens, splitPreserveAllTokens, startsWith, startsWithAny, startsWithIgnoreCase, strip, strip, stripAccents, stripAll, stripAll, stripEnd, stripStart, stripToEmpty, stripToNull, substringAfter, substringAfter, substringAfterLast, substringAfterLast, substringBefore, substringBefore, substringBeforeLast, substringBetween, substringBetween, substringsBetween, swapCase, toCodePoints, toEncodedString, toRootLowerCase, toRootUpperCase, toString, trimToEmpty, trimToNull, truncate, truncate, uncapitalize, unwrap, unwrap, upperCase, upperCase, valueOf, wrap, wrap, wrapIfMissing, wrapIfMissing

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

构造器详细资料
- StringUtil
  
  public StringUtil()
方法详细资料
- nvl
  
  public static <T> T nvl(T value, T defaultValue)
  
  获取参数不为空值
  
  参数:
  
  value - defaultValue 要判断的value
  
  返回:
  
  value 返回值
- isEmpty
  
  public static boolean isEmpty(Collection<?> coll)
  
  * 判断一个Collection是否为空，包含List，Set，Queue
  
  参数:
  
  coll - 要判断的Collection
  
  返回:
  
  true：为空 false：非空
- isNotEmpty
  
  public static boolean isNotEmpty(Collection<?> coll)
  
  * 判断一个Collection是否非空，包含List，Set，Queue
  
  参数:
  
  coll - 要判断的Collection
  
  返回:
  
  true：非空 false：空
- isEmpty
  
  public static boolean isEmpty(Object[] objects)
  
  * 判断一个对象数组是否为空
  
  参数:
  
  objects - 要判断的对象数组 * @return true：为空 false：非空
- isNotEmpty
  
  public static boolean isNotEmpty(Object[] objects)
  
  * 判断一个对象数组是否非空
  
  参数:
  
  objects - 要判断的对象数组
  
  返回:
  
  true：非空 false：空
- isEmpty
  
  public static boolean isEmpty(Map<?,?> map)
  
  * 判断一个Map是否为空
  
  参数:
  
  map - 要判断的Map
  
  返回:
  
  true：为空 false：非空
- isNotEmpty
  
  public static boolean isNotEmpty(Map<?,?> map)
  
  * 判断一个Map是否为空
  
  参数:
  
  map - 要判断的Map
  
  返回:
  
  true：非空 false：空
- isEmpty
  
  public static boolean isEmpty(String str)
  
  * 判断一个字符串是否为空串
  
  参数:
  
  str - String
  
  返回:
  
  true：为空 false：非空
- isNotEmpty
  
  public static boolean isNotEmpty(String str)
  
  * 判断一个字符串是否为非空串
  
  参数:
  
  str - String
  
  返回:
  
  true：非空串 false：空串
- isNull
  
  public static boolean isNull(Object object)
  
  * 判断一个对象是否为空
  
  参数:
  
  object - Object
  
  返回:
  
  true：为空 false：非空
- isNotNull
  
  public static boolean isNotNull(Object object)
  
  * 判断一个对象是否非空
  
  参数:
  
  object - Object
  
  返回:
  
  true：非空 false：空
- isArray
  
  public static boolean isArray(Object object)
  
  * 判断一个对象是否是数组类型（Java基本型别的数组）
  
  参数:
  
  object - 对象
  
  返回:
  
  true：是数组 false：不是数组
- trim
  
  public static String trim(String str)
  
  去空格
- substring
  
  public static String substring(String str, int start)
  
  截取字符串
  
  参数:
  
  str - 字符串
  
  start - 开始
  
  返回:
  
  结果
- substring
  
  public static String substring(String str, int start, int end)
  
  截取字符串
  
  参数:
  
  str - 字符串
  
  start - 开始
  
  end - 结束
  
  返回:
  
  结果
- format
  
  public static String format(String template, Object... params)
  
  格式化文本, {} 表示占位符
  此方法只是简单将占位符 {} 按照顺序替换为参数
  如果想输出 {} 使用 \\转义 { 即可，如果想输出 {} 之前的 \ 使用双转义符 \\\\ 即可
  例：
  通常使用：format("this is {} for {}", "a", "b") -> this is a for b
  转义{}： format("this is \\{} for {}", "a", "b") -> this is \{} for a
  转义\： format("this is \\\\{} for {}", "a", "b") -> this is \a for b
  
  参数:
  
  template - 文本模板，被替换的部分用 {} 表示
  
  params - 参数值
  
  返回:
  
  格式化后的文本
- toUnderScoreCase
  
  public static String toUnderScoreCase(String str)
  
  下划线转驼峰命名
- inStringIgnoreCase
  
  public static boolean inStringIgnoreCase(String str, String... strs)
  
  是否包含字符串
  
  参数:
  
  str - 验证字符串
  
  strs - 字符串组
  
  返回:
  
  包含返回true
- convertToCamelCase
  
  public static String convertToCamelCase(String name)
  
  将下划线大写方式命名的字符串转换为驼峰式。如果转换前的下划线大写方式命名的字符串为空，则返回空字符串。例如：HELLO_WORLD->HelloWorld
  
  参数:
  
  name - 转换前的下划线大写方式命名的字符串
  
  返回:
  
  转换后的驼峰式命名的字符串
- toCamelCase
  
  public static String toCamelCase(String s)
  
  驼峰式命名法例如：user_name->userName
- toUnderLineCase
  
  public static String toUnderLineCase(String name)
  
  驼峰转下划线例如：userName->user_name
- cast
  
  public static <T> T cast(Object obj)

类 StringUtil

字段概要

从类继承的字段 org.apache.commons.lang3.StringUtils

构造器概要

方法概要

从类继承的方法 org.apache.commons.lang3.StringUtils

从类继承的方法 java.lang.Object

构造器详细资料

StringUtil

方法详细资料

nvl

isEmpty

isNotEmpty

isEmpty

isNotEmpty

isEmpty

isNotEmpty

isEmpty

isNotEmpty

isNull

isNotNull

isArray

trim

substring

substring

format

toUnderScoreCase

inStringIgnoreCase

convertToCamelCase

toCamelCase

toUnderLineCase

cast