fix: 文件下载接口无文件响应json

src/framework/utils/file/file.go

@@ -177,13 +177,13 @@ func ReadUploadFileStream(filePath, headerRange string) (map[string]any, error)
 		"range":     "",
 		"chunkSize": 0,
 		"fileSize":  0,
-		"data":      nil,
+		"data":      []byte{},
 	}
 
 	// 文件大小
 	fileSize := getFileSize(fileAsbPath)
 	if fileSize <= 0 {
-		return result, nil
+		return result, fmt.Errorf("file does not exist")
 	}
 	result["fileSize"] = fileSize
 

src/modules/common/controller/file.go

@@ -43,13 +43,6 @@ func (s *FileController) Download(c *gin.Context) {
 		return
 	}
 	routerPath := string(decodedBytes)
-	// 地址文件名截取
-	fileName := routerPath[strings.LastIndex(routerPath, "/")+1:]
-
-	// 响应头
-	c.Writer.Header().Set("Content-Disposition", `attachment; filename="`+url.QueryEscape(fileName)+`"`)
-	c.Writer.Header().Set("Accept-Ranges", "bytes")
-	c.Writer.Header().Set("Content-Type", "application/octet-stream")
 
 	// 断点续传
 	headerRange := c.GetHeader("Range")
@@ -58,6 +51,12 @@ func (s *FileController) Download(c *gin.Context) {
 		c.JSON(200, result.ErrMsg(err.Error()))
 		return
 	}
+
+	// 响应头
+	c.Writer.Header().Set("Content-Disposition", `attachment; filename="`+url.QueryEscape(filepath.Base(routerPath))+`"`)
+	c.Writer.Header().Set("Accept-Ranges", "bytes")
+	c.Writer.Header().Set("Content-Type", "application/octet-stream")
+
 	if headerRange != "" {
 		c.Writer.Header().Set("Content-Range", fmt.Sprint(resultMap["range"]))
 		c.Writer.Header().Set("Content-Length", fmt.Sprint(resultMap["chunkSize"]))
@@ -65,7 +64,6 @@ func (s *FileController) Download(c *gin.Context) {
 	} else {
 		c.Writer.Header().Set("Content-Length", fmt.Sprint(resultMap["fileSize"]))
 		c.Status(200)
-
 	}
 	c.Writer.Write(resultMap["data"].([]byte))
 }