增加修改关键字后，重算功能修改BUG。

dayun-admin/src/main/java/com/jjt/biz/controller/KeyInfoController.java

@@ -106,8 +106,13 @@ public class KeyInfoController extends BaseController {
     }
 
     private IllegalVO isIllegal(List<KeyInfo> keyInfoList, String content) {
+
+
         IllegalVO result = new IllegalVO();
         result.setIllegal(false);
+        if (StringUtils.isEmpty(content)) {
+            return result;
+        }
         for (KeyInfo keyInfo : keyInfoList) {
             String[] keys = keyInfo.getKeyWords().split(",");
             for (String key : keys) {