從正則表達式生成隨機數據java
https://github.com/GitHub-Laziji/reverse-regexpnode
git clone https://github.com/GitHub-Laziji/reverse-regexp.git cd reverse-regexp mvn install
<dependency> <groupId>org.laziji.commons</groupId> <artifactId>reverse-regexp</artifactId> <version>1.0-SNAPSHOT</version> </dependency>
支持大部分正則表達式的匹配語法git
\d
數字, 至關於[0-9]
\w
數字、字母加下劃線, 至關於[0-9a-zA-Z_]
\s
空白字符, 只包含空格和製表符.
除\n
和\r
之外的任意字符, 生成隨機字符時只在ascii
碼0~255
之間生成[a-zA-Z甲乙]
區間, 不支持^
語法與正則表達式的重複匹配語法相同github
?
隨機生成0個或1個字符*
隨機生成0個以上字符, 默認最多16個+
隨機生成1個以上字符, 默認最多16個{n}
生成n個字符{n,}
隨機生成n~個字符, 默認最多max(16,n)
個{n,m}
隨機生成n~m個字符|
或語法, 例如aaa|bbb|ccc
隨機生成aaa
或bbb
或ccc
, 機率相等()
支持括號public class MainTest { @Test public void test() throws RegexpIllegalException, UninitializedException, TypeNotMatchException { random("\\w{6,12}@[a-z0-9]{3}\\.(com|cn)", "郵箱"); random("1(3|5|7|8)\\d{9}", "手機號"); random("-?[1-9]\\d*\\.\\d+", "浮點數"); random("https?://[\\w-]+(\\.[\\w-]+){1,2}(/[\\w-]{3,6}){0,2}(\\?[\\w_]{4,6}=[\\w_]{4,6}(&[\\w_]{4,6}=[\\w_]{4,6}){0,2})?", "網址"); } private void random(String expression, String title) throws RegexpIllegalException, TypeNotMatchException, UninitializedException { System.out.println(title + " " + expression); Node node = new OrdinaryNode(expression); Pattern pattern = Pattern.compile(node.getExpression()); for (int i = 0; i < 10; i++) { String data = node.random(); System.out.println("[" + pattern.matcher(data).matches() + "] " + data); } System.out.println(); } }
輸出正則表達式
郵箱 \w{6,12}@[a-z0-9]{3}\.(com|cn) [true] 19cZ8eISNA@9je.com [true] xpv3wJ@i3h.cn [true] 6qDUfY@1g9.com [true] iVnZSMA373@6zd.cn [true] I5wiX97@ffe.cn [true] mwqA5sXQ@g8j.cn [true] HUXiCem1Y0w@j98.cn [true] 1jOQWsELF@u1o.cn [true] _Q4QTvxPeMFh@bds.com [true] 3xFH33Aa@6lh.cn 手機號 1(3|5|7|8)\d{9} [true] 18263364656 [true] 17539493178 [true] 17452542895 [true] 15190699623 [true] 13441385631 [true] 15450856416 [true] 18651247283 [true] 13835809899 [true] 18595798569 [true] 17115703866 浮點數 -?[1-9]\d*\.\d+ [true] 8148340336.1501586550282701 [true] -3339660539.406 [true] -51.6120243661611419 [true] -731621835440468.9708278 [true] -27438753435.9137579 [true] 393811376.777268751417 [true] 3286498432415.3962664603 [true] -5299652275.9 [true] 216.93676279820770 [true] 34.36843273 網址 https?://[\w-]+(\.[\w-]+){1,2}(/[\w-]{3,6}){0,2}(\?[\w_]{4,6}=[\w_]{4,6}(&[\w_]{4,6}=[\w_]{4,6}){0,2})? [true] https://a_fl.thx/4_4 [true] http://v3YTuJ0Gu-5z8.JGhpdLe/V2j/ndL-UO [true] https://FuMG-gafEc.R2FRRtLyX/ahg [true] https://5phYVK9.wh7vl9z3AAZVg.z-yQSiMTdQw8S9-/WKCd [true] https://T9dntbI.4Su8vxYhCr6?T85gV=R6TYtm&1c97x=nCTyA5 [true] http://qHyDgqBtYwq6Stg8.I6gb-M_ripkiEafK?ZLxy=Itny&RmsTX=X7KEuW&bwuk2=frcjO6 [true] http://UJ.Yb3foKTJKy-uqKUl.ZXrrFUk9K/Dcymu?W2tasq=oqzS&hYGWD=MF6l&FMHOi=F6ct8T [true] https://BY_iS.tnlclAvxMkuO.T90G5XETj/cQncGI [true] http://hG.li8Nzv.uaGokB/CTnrqp [true] https://huZmN.v-LtoY/Dyl/peq?NUmt=__QDXG&8GBY=wZ8M&AkKZl4=8NZfEt