新增业务对象时，返回objId

jjt-biz/src/main/java/com/jjt/biz/controller/BizObjController.java

@@ -137,7 +137,8 @@ public class BizObjController extends BaseController {
     @PostMapping
     public AjaxResult add(@RequestBody BizObj bizObj) {
         bizObj.setCreateBy(SecurityUtils.getUsername());
-        return toAjax(bizObjService.insertBizObj(bizObj));
+        bizObjService.insertBizObj(bizObj);
+        return AjaxResult.success(bizObj);
     }
 
     /**