StringUtils常用方法(五)_MyXieZhiXin的博客

StringUtils 反转函数

import org.apache.commons.lang3.StringUtils;
StringUtils.reverse("bat") = "tab"
StringUtils.reverseDelimited("a.b.c", 'x') = "a.b.c"
StringUtils.reverseDelimited("a.b.c", ".") = "c.b.a"

StringUtils 分割函数

import org.apache.commons.lang3.StringUtils;
StringUtils.split(null)       = null
StringUtils.split("")         = []
StringUtils.split("abc def")  = ["abc", "def"]
StringUtils.split("abc  def") = ["abc", "def"]
StringUtils.split(" abc ")    = ["abc"]
StringUtils.split("a.b.c", '.')    = ["a", "b", "c"]
StringUtils.split("a..b.c", '.')   = ["a", "b", "c"]
StringUtils.split("a b c", ' ')    = ["a", "b", "c"]
StringUtils.split("abc def", null) = ["abc", "def"]
StringUtils.split("abc def", " ")  = ["abc", "def"]
StringUtils.split("ab:cd:ef", ":") = ["ab", "cd", "ef"]
StringUtils.split("ab cd ef", null, 0)   = ["ab", "cd", "ef"]
StringUtils.split("ab:cd:ef", ":", 0)    = ["ab", "cd", "ef"]
StringUtils.split("ab:cd:ef", ":", 2)    = ["ab", "cd:ef"]
StringUtils.splitByWholeSeparator("", *)                 = []
StringUtils.splitByWholeSeparator("ab de fg", null)      = ["ab", "de", "fg"]
StringUtils.splitByWholeSeparator("ab:cd:ef", ":")       = ["ab", "cd", "ef"]
StringUtils.splitByWholeSeparator("ab-!-cd-!-ef", "-!-") = ["ab", "cd", "ef"]
StringUtils.splitByWholeSeparator("ab de fg", null, 0)      = ["ab", "de", "fg"]
StringUtils.splitByWholeSeparator("ab:cd:ef", ":", 2)       = ["ab", "cd:ef"]
StringUtils.splitByWholeSeparator("ab-!-cd-!-ef", "-!-", 5) = ["ab", "cd", "ef"]
StringUtils.splitByWholeSeparator("ab-!-cd-!-ef", "-!-", 2) = ["ab", "cd-!-ef"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab de fg", null)  = ["ab", "de", "fg"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab   de fg", null)  = ["ab", "", "", "de", "fg"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab:cd:ef", ":")   = ["ab", "cd", "ef"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab-!-cd-!-ef", "-!-")   = ["ab", "cd", "ef"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab de fg", null, 0)      = ["ab", "de", "fg"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab   de fg", null, 0)    = ["ab", "", "", "de", "fg"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab:cd:ef", ":", 2)       = ["ab", "cd:ef"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab-!-cd-!-ef", "-!-", 5) = ["ab", "cd", "ef"]
StringUtils.splitByWholeSeparatorPreserveAllTokens("ab-!-cd-!-ef", "-!-", 2) = ["ab", "cd-!-ef"]
StringUtils.splitPreserveAllTokens(null)       = null
StringUtils.splitPreserveAllTokens("")         = []
StringUtils.splitPreserveAllTokens("abc def")  = ["abc", "def"]
StringUtils.splitPreserveAllTokens("abc  def") = ["abc", "", "def"]
StringUtils.splitPreserveAllTokens(" abc ")    = ["", "abc", ""]
StringUtils.splitPreserveAllTokens("a.b.c", '.')    = ["a", "b", "c"]
StringUtils.splitPreserveAllTokens("a..b.c", '.')   = ["a", "", "b", "c"]
StringUtils.splitPreserveAllTokens("a:b:c", '.')    = ["a:b:c"]
StringUtils.splitPreserveAllTokens("a\tb\nc", null) = ["a", "b", "c"]
StringUtils.splitPreserveAllTokens("a b c", ' ')    = ["a", "b", "c"]
StringUtils.splitPreserveAllTokens("a b c ", ' ')   = ["a", "b", "c", ""]
StringUtils.splitPreserveAllTokens("a b c  ", ' ')   = ["a", "b", "c", "", ""]
StringUtils.splitPreserveAllTokens(" a b c", ' ')   = ["", a", "b", "c"]
StringUtils.splitPreserveAllTokens("  a b c", ' ')  = ["", "", a", "b", "c"]
StringUtils.splitPreserveAllTokens(" a b c ", ' ')  = ["", a", "b", "c", ""]
StringUtils.splitPreserveAllTokens("ab de fg", null, 0)   = ["ab", "cd", "ef"]
StringUtils.splitPreserveAllTokens("ab   de fg", null, 0) = ["ab", "cd", "ef"]
StringUtils.splitPreserveAllTokens("ab:cd:ef", ":", 0)    = ["ab", "cd", "ef"]
StringUtils.splitPreserveAllTokens("ab:cd:ef", ":", 2)    = ["ab", "cd:ef"]
StringUtils.splitPreserveAllTokens("ab   de fg", null, 2) = ["ab", "  de fg"]
StringUtils.splitPreserveAllTokens("ab   de fg", null, 3) = ["ab", "", " de fg"]
StringUtils.splitPreserveAllTokens("ab   de fg", null, 4) = ["ab", "", "", "de fg"]
StringUtils.splitByCharacterType("ab de fg")   = ["ab", " ", "de", " ", "fg"]
StringUtils.splitByCharacterType("ab   de fg") = ["ab", "   ", "de", " ", "fg"]
StringUtils.splitByCharacterType("ab:cd:ef")   = ["ab", ":", "cd", ":", "ef"]
StringUtils.splitByCharacterType("number5")    = ["number", "5"]
StringUtils.splitByCharacterType("fooBar")     = ["foo", "B", "ar"]
StringUtils.splitByCharacterType("foo200Bar")  = ["foo", "200", "B", "ar"]
StringUtils.splitByCharacterType("ASFRules")   = ["ASFR", "ules"]
StringUtils.splitByCharacterTypeCamelCase("ab de fg")   = ["ab", " ", "de", " ", "fg"]
StringUtils.splitByCharacterTypeCamelCase("ab   de fg") = ["ab", "   ", "de", " ", "fg"]
StringUtils.splitByCharacterTypeCamelCase("ab:cd:ef")   = ["ab", ":", "cd", ":", "ef"]
StringUtils.splitByCharacterTypeCamelCase("number5")    = ["number", "5"]
StringUtils.splitByCharacterTypeCamelCase("fooBar")     = ["foo", "Bar"]
StringUtils.splitByCharacterTypeCamelCase("foo200Bar")  = ["foo", "200", "Bar"]
StringUtils.splitByCharacterTypeCamelCase("ASFRules")   = ["ASF", "Rules"]

如果你的项目是maven工程，首先在pom.xml中添加commons-lang3包的依赖 &lt;dependency&gt; &lt;groupId&gt;org.apache.commons&lt;/groupId&gt; &lt;artifactId&gt;commons-lang3&lt;/artifactId&gt; &lt;version&gt;3.4&lt;/vers...

继承了org.apache.commons.lang3. String Utils 工具类，加入了部分常用方法，使用时直接添加到项目的公共 utils 下，同时在pom.xml加入依赖：  <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.9</version> </dependency>

[code="java"] public static void TestStr(){ //null 和 ""操作~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //判断是否Null 或者 "" //System.out.println( String Utils .isEmpty(null)); //System.out.println( String Uti...

/*1. 分割字符串 ,可以设定得到数组的长度，但一般情况下不要设定，这样会发生冲突 */ String Utils .split("y5y,4454,545");//默认是按，来分割 String Utils .split("aaaa#sss", "#"); /*结果是：[aaaa, sss]*/ String Utils .split("aaa

import org.apache.commons.lang3. string Utils scala> val s1="1234567890" s1: String = 1234567890 scala> val s2="abcdefghij" s2: String = abcdefghij scala> String Utils .a abbreviate abbreviateMiddle appendIfMissing appendIfMissingIgnoreC 项目整合管理包括对项目管理过程组内的各种过程和项目管理活动而进行识别、定义、组合、统一与协调的各种过程和活动在项目管理中，“整合” 兼具统一、合并、沟通和建立联系的性质，这些行动应贯穿项目始终项目整合管理包括进行以下选择：项目人员的流动性和不稳定性越来越高，就要求采用更严格的过程，以防止知识流失。项目经理被要求介入启动和结束项目，例如开展商业论证和效益管理，以便更好地实现项目目标以及交付项目效益。在适应型环境下，项目经理的关注点在于营造一个合作型的决策氛围，并确保团队有能力应对变更。团队成员需要具备广泛的...