update...

潘钊
1 parent 3a9811a3
Showing 1 changed file with 4 additions and 0 deletions
src/main/java/com/bsth/util/HexCardTransform.java
 package com.bsth.util;
  
+import org.apache.commons.lang3.StringUtils;
+
 import java.math.BigInteger;
  
 /**
@@ -14,6 +16,8 @@ public class HexCardTransform {
      * @return
      */
     public static String hexConvert(String hexCode) {
+        if(StringUtils.isEmpty(hexCode))
+            return null;
         //16进制补满8位
         hexCode = padLeft(hexCode, 8, '0');