OkHTTP 上传大文件的问题

https://stackoverflow.com/questions/70091340/how-to-upload-large-file-to-the-server-using-retrofit-multipart

class UploadHelper {
    private val params = mutableMapOf<String, RequestBody>()
    interface OnResultListener {
        fun result(body: ResponseBody?)
    }
    inner class Builder(val params: Map<String, RequestBody>) {
        fun sendRequest(
            url: String,
            listener: ProgressListener? = null,
            resultListener: OnResultListener? = null
        ) {
//            ProgressManager.getInstance()
//                .addResponseListener(
//                    StringBuilder().append(NetWorkManager.instance.getBaseUrl())
//                        .append(url).toString(), listener
//                )
            try {
                HandleFileManager.instance.create(CommonService::class.java)
                    .uploadFileMap(url, params).enqueue(object : retrofit2.Callback<ResponseBody> {
                        override fun onResponse(
                            call: Call<ResponseBody>,
                            response: Response<ResponseBody>
                        ) {
                            resultListener?.result(response.body())
                        }
                        override fun onFailure(call: Call<ResponseBody>, t: Throwable) {
                            resultListener?.result(null)
                        }
                    })
            } catch (e: Exception) {
                resultListener?.result(null)
//                    ProgressManager.getInstance().notifyOnErorr(url, e)
            }
        }
    }
    /**
     * 加入參数
     * 依据传进来的Object对象来推断是String还是File类型的參数
     */
    fun addParameter(key: String, o: Any): UploadHelper {
        if (o is String) {
            val body = o.toRequestBody("text/plain;charset=UTF-8".toMediaType())
            params[key] = body
        } else if (o is File) {
            //注意不要使用byteArray 如果上传文件>90M 会报OOM内存溢出
            //https://stackoverflow.com/questions/70091340/how-to-upload-large-file-to-the-server-using-retrofit-multipart
            val body =
                o.asRequestBody("multipart/form-data;charset=UTF-8".toMediaType())
//            params["file\"; filename=\"" + o.name] = body
            //注意上传多个文件一定要用 key 如果用"file\"只能上传一个文件
            //HTTP的格式:
            //name=key;filename=0.name xxxxxx
            //name=key;filename=0.name xxxxxx
            //......
            params[key + "\"; filename=\"" + o.name + ""] = body
        }
        return this
    }
    //File.byteArray ktx 可直接转换
//    fun changeByteArray(file: File): ByteArray {
//        val fis = FileInputStream(file)
//        file.readBytes()
//        val swapStream = ByteArrayOutputStream()
//        //将数据优先 存储到缓存区，最后在同步到stream 不要直接操作文件
//        val buff = ByteArray(1024 * 4) //buff用于存放循环读取的临时数据
//        var rc = 0
//        while (fis.read(buff, 0, 100).also { rc = it } > 0) {
//            swapStream.write(buff, 0, rc)
//        }
//        return swapStream.toByteArray()
//    }
    /**
     * 构建RequestBody
     */
    fun bulider(): Builder {
        return Builder(params)
    }
    public fun clear() {
        params.clear();
    }
}

多文件上传

    @Multipart
    @POST
    fun uploadFileMap(
        @Url url: String,
        @PartMap body: Map<String, @JvmSuppressWildcards RequestBody>
    ): Call<ResponseBody>