1. setFormJson后清空已过期的refList数据；

2. 修复文件上传组件生成的下载路径问题。

src/components/form-designer/form-widget/field-widget/file-upload-widget.vue

@@ -201,9 +201,13 @@
           this.updateFieldModelAndEmitDataChangeForUpload(fileList, customResult, res)
           if (!!customResult && !!customResult.name) {
             file.name = customResult.name
+          } else {
+            file.name = file.name || res.name || res.fileName || res.filename
           }
           if (!!customResult && !!customResult.url) {
             file.url = customResult.url
+          } else {
+            file.url = file.url || res.url
           }
           this.fileList = deepClone(fileList)
           this.uploadBtnHidden = fileList.length >= this.field.options.limit

src/components/form-designer/form-widget/index.vue

@@ -172,6 +172,12 @@
         return this.getWidgetRef(wName)
       },
 
+      clearWidgetRefList() {
+        Object.keys(this.widgetRefList).forEach(key => {
+          delete this.widgetRefList[key]
+        })
+      },
+
     }
   }
 </script>

src/components/form-designer/index.vue

@@ -280,6 +280,7 @@
           }
 
           if (modifiedFlag) {
+            this.$refs.formRef.clearWidgetRefList()
             this.designer.emitHistoryChange()
           }
         }
@@ -294,6 +295,7 @@
 
       clearDesigner() {
         this.$refs.toolbarRef.clearFormWidget()
+        this.$refs.formRef.clearWidgetRefList()
       },