tool是提供的主工具类


主要方法

方法 返回值 描述 示例
debug(obj) void debug对象,获取对象所有可用方法 tool.debug(tool)
newSet(items...) Set 创建Set对象 tool.newSet("ele1","ele2")
newList(items...) List 创建List对象 tool.newList("ele1","ele2")
newMap() Map 创建Map对象 tool.newMap()
parseJson(json) Object 解析json字符串 tool.parseJson("{"key":"value"}")
toJson(obj) Object 对象转json字符串 groovy:tool.toJson([key:"value"])
js:tool.toJson({key:"value"})
prettyJson(obj) Object 对象转json字符串(格式化) groovy:tool.prettyJson([key:"value"])
js:tool.prettyJson({key:"value"})
headLine(str) string 获取字符串第一行 tool.headLine("multi\nline")
capitalize(str) string 字符串首字母大写 tool.capitalize("words")
uncapitalize(str) string 字符串首字母小写 tool.uncapitalize("Words")
swapCase(str) string 字符串每个字符大小写转换 tool.swapCase("WoRdS")
upperCase(str) string 字符串全部大写 tool.upperCase("words")
lowerCase(str) string 字符串全部小写 tool.lowerCase("words")
reverse(str) string 字符串反转 tool.reverse("sdrow")
repeat(str,repeat) string 重复指定字符串 tool.repeat("x",10)
isNumeric(str) string 判断字符串是纯数字 tool.isNumeric("123")
toCamelCase(str) string 字符串转驼峰式 tool.toCamelCase("some words",true)
now() string 获取当前时间 格式为:yyyy-MM-dd HH:mm:ss tool.now()
now(pattern) string 获取当前时间并指定格式 tool.now("yyyy-MM-dd")
today() string 获取当前时间 格式为:yyyy-MM-dd tool.today()
format() string 格视化时间戳 tool.format(1000000000000,"yyyy-MM-dd HH:mm:ss")

其他一些方法


isAlpha

Desc:

Checks if the CharSequence contains only Unicode letters.

{@code null} will return {@code false}. An empty CharSequence (length()=0) will return {@code false}.

tool.isAlpha(null)   = false
tool.isAlpha("")     = false
tool.isAlpha("  ")   = false
tool.isAlpha("abc")  = true
tool.isAlpha("ab2c") = false
tool.isAlpha("ab-c") = false

Params:

name type desc
str string

Return:

name type desc
object {@code true} if only contains letters, and is non-null

substringBefore

Desc:

Gets the substring before the first occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. A {@code null} separator will return the input string.

If nothing is found, the string input is returned.

tool.substringBefore(null, *)      = null
tool.substringBefore("", *)        = ""
tool.substringBefore("abc", "a")   = ""
tool.substringBefore("abcba", "b") = "a"
tool.substringBefore("abc", "c")   = "ab"
tool.substringBefore("abc", "d")   = "abc"
tool.substringBefore("abc", "")    = ""
tool.substringBefore("abc", null)  = "abc"

Params:

name type desc
str string
separator string

Return:

name type desc
string the substring before the first occurrence of the separator,
{@code null} if null String input

substringAfter

Desc:

Gets the substring after the first occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. A {@code null} separator will return the empty string if the input string is not {@code null}.

If nothing is found, the empty string is returned.

tool.substringAfter(null, *)      = null
tool.substringAfter("", *)        = ""
tool.substringAfter(*, null)      = ""
tool.substringAfter("abc", "a")   = "bc"
tool.substringAfter("abcba", "b") = "cba"
tool.substringAfter("abc", "c")   = ""
tool.substringAfter("abc", "d")   = ""
tool.substringAfter("abc", "")    = "abc"

Params:

name type desc
str string
separator string

Return:

name type desc
string the substring after the first occurrence of the separator,
{@code null} if null String input

substringBeforeLast

Desc:

Gets the substring before the last occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. An empty or {@code null} separator will return the input string.

If nothing is found, the string input is returned.

tool.substringBeforeLast(null, *)      = null
tool.substringBeforeLast("", *)        = ""
tool.substringBeforeLast("abcba", "b") = "abc"
tool.substringBeforeLast("abc", "c")   = "ab"
tool.substringBeforeLast("a", "a")     = ""
tool.substringBeforeLast("a", "z")     = "a"
tool.substringBeforeLast("a", null)    = "a"
tool.substringBeforeLast("a", "")      = "a"

Params:

name type desc
str string
separator string

Return:

name type desc
string the substring before the last occurrence of the separator,
{@code null} if null String input

substringAfterLast

Desc:

Gets the substring after the last occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. An empty or {@code null} separator will return the empty string if the input string is not {@code null}.

If nothing is found, the empty string is returned.

tool.substringAfterLast(null, *)      = null
tool.substringAfterLast("", *)        = ""
tool.substringAfterLast(*, "")        = ""
tool.substringAfterLast(*, null)      = ""
tool.substringAfterLast("abc", "a")   = "bc"
tool.substringAfterLast("abcba", "b") = "a"
tool.substringAfterLast("abc", "c")   = ""
tool.substringAfterLast("a", "a")     = ""
tool.substringAfterLast("a", "z")     = ""

Params:

name type desc
str string
separator string

Return:

name type desc
string the substring after the last occurrence of the separator,
{@code null} if null String input

substringBetween

Desc:

Gets the String that is nested in between two instances of the same String.

A {@code null} input String returns {@code null}. A {@code null} tag returns {@code null}.

tool.substringBetween(null, *)            = null
tool.substringBetween("", "")             = ""
tool.substringBetween("", "tag")          = null
tool.substringBetween("tagabctag", null)  = null
tool.substringBetween("tagabctag", "")    = ""
tool.substringBetween("tagabctag", "tag") = "abc"

Params:

name type desc
str string
tag string

Return:

name type desc
string the substring, {@code null} if no match

substringBetween

Desc:

Gets the String that is nested in between two Strings. Only the first match is returned.

A {@code null} input String returns {@code null}. A {@code null} open/close returns {@code null} (no match). An empty ("") open and close returns an empty string.

tool.substringBetween("wxbyz", "", "") = "b"
tool.substringBetween(null, *, *)          = null
tool.substringBetween(*, null, *)          = null
tool.substringBetween(*, *, null)          = null
tool.substringBetween("", "", "")          = ""
tool.substringBetween("", "", "]")         = null
tool.substringBetween("", "", "")        = null
tool.substringBetween("yabcz", "", "")     = ""
tool.substringBetween("yabcz", "y", "z")   = "abc"
tool.substringBetween("yabczyabcz", "y", "z")   = "abc"

Params:

name type desc
str string
open string
close string

Return:

name type desc
string the substring, {@code null} if no match

substringsBetween

Desc:

Searches a String for substrings delimited by a start and end tag, returning all matching substrings in an array.

A {@code null} input String returns {@code null}. A {@code null} open/close returns {@code null} (no match). An empty ("") open/close returns {@code null} (no match).

tool.substringsBetween("abc", "", "") = "a","b","c"
tool.substringsBetween(null, *, *)            = null
tool.substringsBetween(*, null, *)            = null
tool.substringsBetween(*, *, null)            = null
tool.substringsBetween("", "", "")          = 

Params:

name type desc
str string
open string
close string

Return:

name type desc
array a String Array of substrings, or {@code null} if no match
string

split

Desc:

Splits the provided text into an array, using whitespace as the separator. Whitespace is defined by Character#isWhitespace(char).

The separator is not included in the returned String array. Adjacent separators are treated as one separator. For more control over the split use the StrTokenizer class.

A {@code null} input String returns {@code null}.

tool.split(null)       = null
tool.split("")         = 
tool.split("abc def")  = "abc", "def"
tool.split("abc  def") = "abc", "def"
tool.split(" abc ")    = "abc"

Params:

name type desc
str string

Return:

name type desc
array an array of parsed Strings, {@code null} if null String input
string

split

Desc:

Splits the provided text into an array, separators specified. This is an alternative to using StringTokenizer.

The separator is not included in the returned String array. Adjacent separators are treated as one separator. For more control over the split use the StrTokenizer class.

A {@code null} input String returns {@code null}. A {@code null} separatorChars splits on whitespace.

tool.split(null, *)         = null
tool.split("", *)           = 
tool.split("abc def", null) = "abc", "def"
tool.split("abc def", " ")  = "abc", "def"
tool.split("abc  def", " ") = "abc", "def"
tool.split("ab:cd:ef", ":") = "ab", "cd", "ef"

Params:

name type desc
str string
separatorChars string

Return:

name type desc
array an array of parsed Strings, {@code null} if null String input
string