update https上传文件

nb-oss/src/main/java/com/nb/oss/strategy/storage/SysStorage.java

@@ -74,4 +74,7 @@ public class SysStorage extends GenericEntity<String> implements Serializable {
         this.version=null;
     }
 
+    public String getUrl() {
+        return urlPrefix+url;
+    }
 }