Flutter阿里云OSS存储插件aliyun_oss_flutter的使用

Flutter阿里云OSS存储插件aliyun_oss_flutter的使用

插件介绍

aliyun_oss_flutter 是一个用于Flutter的阿里云OSS存储插件，可以帮助您将文件上传到阿里云OSS。首先需要在pubspec.yaml文件中添加依赖。

使用方法

1 依赖管理：

dependencies:
  aliyun_oss_flutter: ^x.x.x

2 初始化OSSClient：

import 'package:flutter/material.dart';
import 'package:aliyun_oss_flutter/aliyun_oss_flutter.dart';

void main() {
  // 初始化OSSClient
  OSSClient.init(
    endpoint: 'oss-cn-hangzhou.aliyuncs.com',
    bucket: 'xxxx',
    credentials: () {
      // Future Credentials
      return Credentials.fromJson(response.data);
      // Or Credentials Config
      return Credentials(
        accessKeyId: 'xxxx',
        accessKeySecret: 'xxxx',
      );
    },
  );

  runApp(...);
}

Future<void> upload() async {
  final object = await OSSClient().putObject(
    object: OSSObject
    bucket: xxx, // String?
    endpoint: xxx, // String,
    path: xxx, // String,
  );
}

3 示例代码：

import 'package:flutter/material.dart';
import 'package:aliyun_oss_flutter/aliyun_oss_flutter.dart';

void main() {
  // 初始化OSSClient
  OSSClient.init(
    endpoint: 'oss-cn-hangzhou.aliyuncs.com', // 替换为您的OSS Endpoint
    bucket: 'your-bucket-name', // 替换为您的OSS Bucket名称
    credentials: () {
      // Future Credentials
      return Credentials.fromJson(response.data);
      // Or Credentials Config
      return Credentials(
        accessKeyId: 'your-access-key-id',
        accessKeySecret: 'your-access-key-secret',
      );
    },
  );

  runApp(...);
}

Future<void> upload() async {
  final object = await OSSClient().putObject(
    object: OSSObject
    bucket: 'your-bucket-name', // 替换为您的OSS Bucket名称
    endpoint: 'oss-cn-hangzhou.aliyuncs.com', // 替换为您的OSS Endpoint
    path: 'path/to/upload', // 您要上传文件的路径
  );
}

压缩需求

现版本已移除图片压缩、宽高获取，如需对视频、图片进行压缩可以使用media_asset_utils插件。推荐使用以下插件：

• media_asset_utils：用于视频硬编码压缩以及图片仿微信Luban压缩。
• Luban：用于视频缩略图获取。
• video_info：用于视频和图片的width、height、orientation等信息获取。
• image_picker_plus：用于保存到相册，支持Android Q+。

示例代码（包含媒体资产处理）

import 'package:flutter/material.dart';
import 'package:aliyun_oss_flutter/aliyun_oss_flutter.dart';
import 'package:image_picker/image_picker.dart';
import 'package:media_asset_utils/media_asset_utils.dart';
import 'package:luban/luban.dart';
import 'package:video_info/video_info.dart';

void main() {
  // 初始化OSSClient
  OSSClient.init(
    endpoint: 'oss-cn-hangzhou.aliyuncs.com', // 替换为您的OSS Endpoint
    bucket: 'your-bucket-name', // 替换为您的OSS Bucket名称
    credentials: () {
      // Future Credentials
      return Credentials.fromJson(response.data);
      // Or Credentials Config
      return Credentials(
        accessKeyId: 'your-access-key-id',
        accessKeySecret: 'your-access-key-secret',
      );
    },
  );

  runApp(...);
}

Future<void> upload() async {
  // 获取图片
  final picker = ImagePicker();
  final image = await picker.getImage(source: ImageSource.gallery);

  // 处理图片
  final mediaAssetUtils = MediaAssetUtils();
  final luban = Luban();

  // 图片压缩
  final compressedImage = await luban.compress(image.path, quality: 80);

  // 上传压缩后的图片到OSS
  final object = await OSSClient().putObject(
    object: OSSObject
    bucket: 'your-bucket-name', // 替换为您的OSS Bucket名称
    endpoint: 'oss-cn-hangzhou.aliyuncsc.com', // 替换为您的OSS Endpoint
    path: 'path/to/upload', // 您要上传文件的路径
  );
}