[appinfo空指针处理][修复]

mallinkCApi/src/main/java/com/iformall/controller/BaseController.java

@@ -87,6 +87,9 @@ public class BaseController {
 
     public WxMaService getWeappService(String appId) {
         WxAppinfo appinfo = wxAppinfoService.getByAppId(appId);
+        if (appinfo == null) {
+            return null;
+        }
         WxMaService service = MaUtil.getWeappService(appinfo);
         return service;
     }