react使用阿里云对象存储,ali-oss, antd upload to ali-oss

最近写阿里云图片上传,碰到一些小问题,在此总结一下.
项目环境:
create-react-app antd node6.1.0
看了阿里云oss对象存储sdk

直接采用node 的安装方式.

在使用的时候碰到了问题.

yield client.put('file', file.url);
=> 
TypeError: fs.createReadStream is not a function

看文档要求,换成分片上传,也会存在问题.

yield client.multipartUpload('file', file.url);
=>
TypeError: fs.stat is not a function

问题就是这样,node 的库不在.

没有办法,尝试浏览器上传. 是可以的.

浏览器安装

在index.html 引入包.

  <script src="http://gosspublic.alicdn.com/aliyun-oss-sdk.min.js"></script>

可以看快速开始.浏览器方式快速开始.

其实这里说的主要是antd 库的 Upload 集成ali-oss 上传.

import React from 'react'
import {Upload, Modal} from 'antd'

class Example extends React.Component{
  state = {
    preview: "",
    visible: false,
    imageList: [],
    token: {}
  }

  render() {
    const props = {
      onRemove: (file) => {
        this.setState(({ imageList }) => {
          const index = imageList.indexOf(file);
          const newFileList = imageList.slice();
          newFileList.splice(index, 1);
          return {imageList: newFileList};
        });
      },
      beforeUpload: this.beforeUpload,
      fileList: this.state.imageList,
      onPreview: this.handlePreview,
      accept: "image/*",
      listType: "picture-card"
    };
    const {preview, visible, imageList} = this.state
    return(
        <div>
            <Upload {...props}>
              {
                imageList.length >= 1 ? null : uploadButton
              }
            </Upload>
            <Modal visible={visible} footer={null} onCancel={this.handleCancel}>
               <img alt="example" style={{ width: '100%' }} src={preview} />
            </Modal>
        </div>
    )
  }

  //因为我们需要与表单一起上传,所以默认是不去上传到后台服务器.
  beforeUpload = file => {
    let reader = new FileReader();
    reader.readAsDataURL(file);
    reader.onloadend = () => {
      UploadToOss(this, DRIVER_LICENSE_PATH, file).then(data => {
        this.setState(({ imageList }) => ({
          imageList: [{
            uid: file.uid,
            name: file.name,
            status: file.status,
            type: file.type,
            result: data.name,
            url: reader.result
          }],
        }));
      })
    }
    return false;
  }

  handlePreview = (file) => {
    this.setState({
      preview: file.url || file.thumbUrl,
      visible: true,
    });
  }

  componentDidMount(){
    //使用的sts,向后台服务器请求获取token.
    // setState({token: "you get result"})
  }
}

const client = (self) => {
  const {token} = self.state
  return new window.OSS.Wrapper({
    accessKeyId: token.access_key_id,
    accessKeySecret: token.access_key_secret,
    stsToken: token.security_token,
    region: OSS_ENDPOINT, //常量,你可以自己定义
    bucket: OSS_BUCKET,
  });
}

const uploadPath = (path, file) => {
  return `${path}/${file.name.split(".")[0]}-${file.uid}.${file.type.split("/")[1]}`
}

const UploadToOss = (self, path, file) => {
  const url = uploadPath(path, file)
  return new Promise((resolve, reject) => {
    client(self).multipartUpload(url, file).then(data => {
      resolve(data);
    }).catch(error => {
      reject(error)
    })
  })
}

上面就是upload 和 ali-oss 一起使用的列子.

• 原文链接