【电商项目】---脱敏工具类

谁践踏了优雅 2022-12-22 08:46 104阅读 0赞

# 前言 #

脱敏工具类

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# 脱敏工具类 #

import sun.applet.Main;
    
    /**
     * 通用脱敏工具类
     * 可用于：
     *      用户名
     *      手机号
     *      邮箱
     *      地址等
     */
    public class DesensitizationUtil { 
    
        private static final int SIZE = 6;
        private static final String SYMBOL = "*";
    
        public static void main(String[] args) { 
            String name = commonDisplay("zcw");
            String mobile = commonDisplay("13900000000");
            String mail = commonDisplay("admin@zcw.com");
            String address = commonDisplay("中关村");
    
            System.out.println(name);
            System.out.println(mobile);
            System.out.println(mail);
            System.out.println(address);
        }
    
        /**
         * 通用脱敏方法
         * @param value
         * @return
         */
        public static String commonDisplay(String value) { 
            if (null == value || "".equals(value)) { 
                return value;
            }
            int len = value.length();
            int pamaone = len / 2;
            int pamatwo = pamaone - 1;
            int pamathree = len % 2;
            StringBuilder stringBuilder = new StringBuilder();
            if (len <= 2) { 
                if (pamathree == 1) { 
                    return SYMBOL;
                }
                stringBuilder.append(SYMBOL);
                stringBuilder.append(value.charAt(len - 1));
            } else { 
                if (pamatwo <= 0) { 
                    stringBuilder.append(value.substring(0, 1));
                    stringBuilder.append(SYMBOL);
                    stringBuilder.append(value.substring(len - 1, len));
    
                } else if (pamatwo >= SIZE / 2 && SIZE + 1 != len) { 
                    int pamafive = (len - SIZE) / 2;
                    stringBuilder.append(value.substring(0, pamafive));
                    for (int i = 0; i < SIZE; i++) { 
                        stringBuilder.append(SYMBOL);
                    }
                    if ((pamathree == 0 && SIZE / 2 == 0) || (pamathree != 0 && SIZE % 2 != 0)) { 
                        stringBuilder.append(value.substring(len - pamafive, len));
                    } else { 
                        stringBuilder.append(value.substring(len - (pamafive + 1), len));
                    }
                } else { 
                    int pamafour = len - 2;
                    stringBuilder.append(value.substring(0, 1));
                    for (int i = 0; i < pamafour; i++) { 
                        stringBuilder.append(SYMBOL);
                    }
                    stringBuilder.append(value.substring(len - 1, len));
                }
            }
            return stringBuilder.toString();
        }
    
    }

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