added: 数据权限

src/main/java/xyz/playedu/api/util/PrivacyUtil.java

@@ -0,0 +1,55 @@
+package xyz.playedu.api.util;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/3 10:51
+ */
+public class PrivacyUtil {
+
+    public static String hidePhone(String phone) {
+        return phone.replaceAll("(\\d{3})\\d{4}(\\d{4})", "$1****$2");
+    }
+
+    public static String hideEmail(String email) {
+        return email.replaceAll("(\\w?)(\\w+)(\\w)(@\\w+\\.[a-z]+(\\.[a-z]+)?)", "$1****$3$4");
+    }
+
+    public static String hideIDCard(String idCard) {
+        return idCard.replaceAll("(\\d{4})\\d{10}(\\w{4})", "$1*****$2");
+    }
+
+    public static String hideChineseName(String chineseName) {
+        if (chineseName == null) {
+            return null;
+        }
+        return desValue(chineseName, 1, 0, "*");
+    }
+
+    /**
+     * 对字符串进行脱敏操作
+     *
+     * @param origin          原始字符串
+     * @param prefixNoMaskLen 左侧需要保留几位明文字段
+     * @param suffixNoMaskLen 右侧需要保留几位明文字段
+     * @param maskStr         用于遮罩的字符串, 如'*'
+     * @return 脱敏后结果
+     */
+    public static String desValue(String origin, int prefixNoMaskLen, int suffixNoMaskLen, String maskStr) {
+        if (origin == null) {
+            return null;
+        }
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0, n = origin.length(); i < n; i++) {
+            if (i < prefixNoMaskLen) {
+                sb.append(origin.charAt(i));
+                continue;
+            }
+            if (i > (n - suffixNoMaskLen - 1)) {
+                sb.append(origin.charAt(i));
+                continue;
+            }
+            sb.append(maskStr);
+        }
+        return sb.toString();
+    }
+}