Java: Random

 

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/**  * encoding: utf-8  * 版权所有 2023 涂聚文有限公司  * 许可信息查看：  * 描述：        //https://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/RandomStringUtils.html  *         //https://commons.apache.org/proper/commons-lang/download_lang.cgi  * # Author    : geovindu,Geovin Du 涂聚文.  * # IDE       : IntelliJ IDEA 2023.1 Java 17  * # Datetime  : 2023 - 2023/12/16 - 6:20  * # User      : geovindu  * # Product   : IntelliJ IDEA  * # Project   : javademo  * # File      : ApacherandomHelper.java  类  * # explain   : 学习  **/   package Common;     import org.apache.commons.lang3.*; //3.14.0 import java.util.Random; import java.lang.String;   /**  * 随机数或随机字符串操作  */ public class ApacherandomHelper {         /**      * 随机数      * @param length 长度      * @return 返回随机数字串      */     public  static String getnumber(int length)     {           // Creates a 8 chars length random string of number.         String result = RandomStringUtils.random(length, false, true);         //System.out.println("random = " + result);         return  result;     }       /**      *随机字符串      * @param length 长度      * @return      */     public static String getAphabetic(int length)     {         String result="";         // Creates a 8 chars length of random alphabetic string.         result = RandomStringUtils.randomAlphabetic(length);         //System.out.println("random = " + result);         return  result;       }       /**      *随机Ascii 字符，有特殊字符，数字，字母等      * @param length 长度      * @return      */     public  static String getAscii(int length)     {         String result="";         // Creates a 8 chars length of random ascii string.         result = RandomStringUtils.randomAscii(length);         //System.out.println("random = " + result);         return result;       }       /**      * 自定义长度和自定义随朵的字符串 可以和数字字母特殊字符      * @param length 长度      * @param word 自定义的自符串  23456789abcdefghijkmnopqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ      * @return 返回随机的字符串      */     public  static  String CustomerCharacters(int length,String word)     {         String result="";         // Creates a 6 chars length of string from the defined array of         // characters including numeric and alphabetic characters.         //String word="23456789abcdefghijkmnopqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ";         int wordlength=word.length();         result = RandomStringUtils.random(6, 0, wordlength, true, true,word.toCharArray());         //System.out.println("random = " + result);         return  result;     }   }

　　

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import Common.ApacherandomHelper;   public class Main {       /**      *      * @param args      */     public static void main(String[] args)     {             System.out.println("Hello java language world! 涂聚文！");           //随机字符串         System.out.println(ApacherandomHelper.getnumber(6));         System.out.println(ApacherandomHelper.getAscii(6));         System.out.println(ApacherandomHelper.getAphabetic(6));         System.out.println(ApacherandomHelper.CustomerCharacters(6,"23456789abcdefghijkmnopqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ"));   }

　　

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