新疆短信内容中手机号码处理，避免含正常手机号的短信发不出去

jeecg-boot-base-core/src/main/java/org/jeecg/util/XjCommonUtil.java

@@ -14,14 +14,29 @@ public class XjCommonUtil {
         if (StrUtil.isBlank(mobile)) {
             return "";
         }
-        // 判空或长度不足3位，直接返回原值
+
-        if (mobile.length() < 3) {
+        // 如果长度 <= 4，无需分割
+        if (mobile.length() <= 4) {
             return mobile;
         }
-        return mobile.substring(0, 3) + "_" + mobile.substring(3);
+
+        StringBuilder result = new StringBuilder();
+        int len = mobile.length();
+
+        // 从后往前，每4位处理一次
+        for (int i = len; i > 0; i -= 4) {
+            int start = Math.max(0, i - 4);
+            String segment = mobile.substring(start, i);
+            if (result.length() > 0) {
+                result.insert(0, "～");
+            }
+            result.insert(0, segment);
         }
 
-    public static void main(String[] args) {
+        return result.toString();
-        System.out.println(handleMobile("13812345678"));
     }
+
+//    public static void main(String[] args) {
+//        System.out.println(handleMobile("13812345678"));
+//    }
 }