public class StringUtils
extends org.apache.commons.lang3.StringUtils
| 构造器和说明 |
|---|
StringUtils() |
| 限定符和类型 | 方法和说明 |
|---|---|
static String |
blankToDefault(String str,
String defaultValue)
获取参数不为空值
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static boolean |
containsAnyIgnoreCase(CharSequence cs,
CharSequence... searchCharSequences)
查找指定字符串是否包含指定字符串列表中的任意一个字符串同时串忽略大小写
|
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
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static boolean |
isEmpty(String str)
* 判断一个字符串是否为空串
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static boolean |
ishttp(String link)
是否为http(s)://开头
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static boolean |
isMatch(String pattern,
String url)
判断url是否与规则配置:
?
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static boolean |
isNotEmpty(String str)
* 判断一个字符串是否为非空串
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static boolean |
matches(String str,
List<String> strs)
查找指定字符串是否匹配指定字符串列表中的任意一个字符串
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static String |
padl(Number num,
int size)
数字左边补齐0,使之达到指定长度。
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static String |
padl(String s,
int size,
char c)
字符串左补齐。
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static List<String> |
str2List(String str,
String sep,
boolean filterBlank,
boolean trim)
字符串转list
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static Set<String> |
str2Set(String str,
String sep)
字符串转set
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static String |
substring(String str,
int start)
截取字符串
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static String |
substring(String str,
int start,
int end)
截取字符串
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static String |
toCamelCase(String s)
驼峰式命名法 例如:user_name->userName
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static String |
toUnderScoreCase(String str)
驼峰转下划线命名
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static String |
trim(String str)
去空格
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abbreviate, abbreviate, abbreviate, abbreviate, abbreviateMiddle, appendIfMissing, appendIfMissingIgnoreCase, capitalize, center, center, center, chomp, chomp, chop, compare, compare, compareIgnoreCase, compareIgnoreCase, contains, contains, containsAny, containsAny, containsAny, 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, 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, substringBeforeLast, substringBetween, substringBetween, substringsBetween, swapCase, toCodePoints, toEncodedString, toRootLowerCase, toRootUpperCase, toString, trimToEmpty, trimToNull, truncate, truncate, uncapitalize, unwrap, unwrap, upperCase, upperCase, valueOf, wrap, wrap, wrapIfMissing, wrapIfMissingpublic static String blankToDefault(String str, String defaultValue)
str - defaultValue 要判断的valuepublic static boolean isEmpty(String str)
str - Stringpublic static boolean isNotEmpty(String str)
str - Stringpublic static String substring(String str, int start)
str - 字符串start - 开始public static String substring(String str, int start, int end)
str - 字符串start - 开始end - 结束public static String format(String template, Object... params)
template - 文本模板,被替换的部分用 {} 表示params - 参数值public static boolean ishttp(String link)
link - 链接public static Set<String> str2Set(String str, String sep)
str - 字符串sep - 分隔符public static List<String> str2List(String str, String sep, boolean filterBlank, boolean trim)
str - 字符串sep - 分隔符filterBlank - 过滤纯空白trim - 去掉首尾空白public static boolean containsAnyIgnoreCase(CharSequence cs, CharSequence... searchCharSequences)
cs - 指定字符串searchCharSequences - 需要检查的字符串数组public static boolean inStringIgnoreCase(String str, String... strs)
str - 验证字符串strs - 字符串组public static String convertToCamelCase(String name)
name - 转换前的下划线大写方式命名的字符串public static boolean matches(String str, List<String> strs)
str - 指定字符串strs - 需要检查的字符串数组public static boolean isMatch(String pattern, String url)
pattern - 匹配规则url - 需要匹配的urlpublic static final String padl(Number num, int size)
num - 数字对象size - 字符串指定长度Copyright © 2022. All rights reserved.