diff --git a/platform-common/src/main/java/com/lyms/platform/common/utils/StringUtils.java b/platform-common/src/main/java/com/lyms/platform/common/utils/StringUtils.java
index 8c7b8f1..fc3e61b 100644
--- a/platform-common/src/main/java/com/lyms/platform/common/utils/StringUtils.java
+++ b/platform-common/src/main/java/com/lyms/platform/common/utils/StringUtils.java
@@ -423,4 +423,14 @@ public final class StringUtils {
         }
         return "";
     }
+
+    public static String riskCodeStr(Long numCode) {
+        if (numCode != null)
+        {
+            StringBuffer sb = new StringBuffer(String.valueOf(numCode));
+            sb.insert(4,"-");
+            return sb.toString();
+        }
+        return "";
+    }
 }
\ No newline at end of file