封面图bug修复

@@ -1744,8 +1744,9 @@ public class GrassArticleServiceImpl implements IGrassArticleService {
             }
             if("coverImage".equals(content.getTemplateKey())){
                 JSONObject data = JSON.parseObject(content.getContentData());
-                String coverImage = JSON.parseObject(data.getString("data")).getString("coverImage");
-                coverImageMap.put(content.getArticleId(), coverImage);
+                String src = JSON.parseObject(data.getString("data")).getString("src");
+                src = StringUtils.isEmpty(src) ? "" : src.substring(0, src.indexOf("?"));
+                coverImageMap.put(content.getArticleId(), src);
             }
 
         });