java随机生成手机号

悠悠 2022-12-29 09:54 156阅读 0赞

package com.cw.bigdata.generatedata;
    
    import java.util.Random;
    
    /** * @author 陈小哥cw * @date 2020/12/22 9:10 */
    public class RandomPhoneNumber { 
        //中国移动
        public static final String[] CHINA_MOBILE = { 
                "134", "135", "136", "137", "138", "139", "150", "151", "152", "157", "158", "159",
                "182", "183", "184", "187", "188", "178", "147", "172", "198"
        };
        //中国联通
        public static final String[] CHINA_UNICOM = { 
                "130", "131", "132", "145", "155", "156", "166", "171", "175", "176", "185", "186", "166"
        };
        //中国电信
        public static final String[] CHINA_TELECOME = { 
                "133", "149", "153", "173", "177", "180", "181", "189", "199"
        };
    
        /** * 生成手机号 * * @param op 0 移动 1 联通 2 电信 */
        public static String createMobile(int op) { 
            StringBuilder sb = new StringBuilder();
            Random random = new Random();
            String mobile01;//手机号前三位
            int temp;
            switch (op) { 
                case 0:
                    mobile01 = CHINA_MOBILE[random.nextInt(CHINA_MOBILE.length)];
                    break;
                case 1:
                    mobile01 = CHINA_UNICOM[random.nextInt(CHINA_UNICOM.length)];
                    break;
                case 2:
                    mobile01 = CHINA_TELECOME[random.nextInt(CHINA_TELECOME.length)];
                    break;
                default:
                    mobile01 = "op标志位有误！";
                    break;
            }
            if (mobile01.length() > 3) { 
                return mobile01;
            }
            sb.append(mobile01);
            //生成手机号后8位
            for (int i = 0; i < 8; i++) { 
                temp = random.nextInt(10);
                sb.append(temp);
            }
            return sb.toString();
        }
    
        public static void main(String[] args) { 
            Random random = new Random();
            StringBuilder sb = new StringBuilder();
            for (int i = 1; i <= 10; i++) { 
                int op = random.nextInt(3);//随机运营商标志位
                sb.append(createMobile(op));
                if (i % 10 == 0) { 
                    sb.append("\n");
                } else { 
                    sb.append("\t");
                }
            }
            System.out.println(sb.toString());
        }
    }