Android 使用 okhttp3和retrofit2 进行单文件和多文件上传

     @Multipart
    @POST("xxxx/xxx")
    suspend fun upload(
        @Part part: MultipartBody.Part,
        @Query("code") code: String
    ): ApiResponse<String>

  val file = File(it)
  val requestBody: RequestBody = RequestBody.create(MediaType.parse("image/*"), file)
 
  val part = MultipartBody.Part.createFormData("file", file.getName(), requestBody)
 
  mViewModel.upload(part)

    @POST("xxx/xxxxs")
    suspend fun uploads(
        @Body part: MultipartBody,
        @Query("code") code: String
    ): ApiResponse<String>

      val builder = MultipartBody.Builder()
            builder.setType(MultipartBody.FORM)
             getDataList()?.filter { !it.filePath.isNullOrEmpty() }.forEach {
                val file = File(it.filePath)
                builder.addFormDataPart(
                    "files",
                    file.getName(),
                    RequestBody.create(MediaType.parse("image/jpg"), file)
                )
            }
 
            mViewModel.uploads(builder.build())