使用不关闭reader

packed/file/file_upload.go

@@ -168,8 +168,11 @@ func (f *ObtainFile) uploadPacked() error {
 	for i := 1; i <= f.pageCount; i++ {
 		f.packed.ImagesName = append(f.packed.ImagesName, fmt.Sprintf("%05d", i) +".png")
 	}
-	packedBytes, _ := json.Marshal(f.packed)
-	return oss.Upload(f.parser.splitUploadPath()+"packed.json", bytes.NewReader(packedBytes))
+	packedBytes, err := json.Marshal(f.packed)
+	if err != nil {
+		return  err
+	}
+	return oss.Upload(f.parser.splitUploadPath()+"packed.json", ioutil.NopCloser(bytes.NewBuffer(packedBytes)))
 }
 
 // 拼接下载zip包地址