vue3用华为云分段上传视频获取每个视频的进度并显示

首先，你需要了解如何在Vue3中使用华为云的分段上传功能。这可以通过使用华为云提供的JavaScript SDK来实现。

下面是一个基本的示例，用于上传视频并获取进度：

import OBS from 'huaweicloud-obs-sdk';

const obsClient = new OBS({
  access_key_id: 'your_access_key_id',
  secret_access_key: 'your_secret_access_key',
  server: 'your_obs_endpoint',
});

const uploadVideo = async (file) => {
  const fileSize = file.size;
  const chunkSize = 5 * 1024 * 1024; // 5MB per chunk

  // First, create a new object in the bucket
  const objectName = file.name;
  const result = await obsClient.createObject({
    Bucket: 'your_bucket_name',
    Key: objectName,
  });

  // Then, split the file into chunks and upload them one by one
  let uploadedSize = 0;
  let partNumber = 1;
  while (uploadedSize < fileSize) {
    const chunk = file.slice(uploadedSize, uploadedSize + chunkSize);
    const partResult = await obsClient.uploadPart({
      Bucket: 'your_bucket_name',
      Key: objectName,
      PartNumber: partNumber,
      UploadId: result.UploadId,
      Body: chunk,
    });
    uploadedSize += chunkSize;
    partNumber += 1;
    const progress = Math.floor((uploadedSize / fileSize) * 100);
    console.log(`Uploaded ${uploadedSize} bytes (${progress}%)`);
  }

  // Finally, complete the upload
  await obsClient.completeMultipartUpload({
    Bucket: 'your_bucket_name',
    Key: objectName,
    UploadId: result.UploadId,
  });

  console.log('Upload complete!');
};

在上面的示例中，我们使用了`createObject`方法来创建一个新的对象，并获取到了一个`UploadId`。然后，我们使用`uploadPart`方法将文件切割成指定大小的块，并将每块上传到服务器上。在每块上传完成时，我们计算已经上传的字节数和文件总大小之比，从而得到上传进度。最后，我们使用`completeMultipartUpload`方法来完成上传过程。

在Vue3中，你可以将上面的代码放到一个组件的方法中，并使用`v-on:change`监听文件上传事件。在上传过程中，你可以使用Vue3的响应式数据来更新进度条的值。

下面是一个示例组件：

<template>
  <div>
    <input type="file" v-on:change="uploadVideo" />
    <progress :value="progress" max="100"></progress>
  </div>
</template>

<script>
import OBS from 'huaweicloud-obs-sdk';

const obsClient = new OBS({
  access_key_id: 'your_access_key_id',
  secret_access_key: 'your_secret_access_key',
  server: 'your_obs_endpoint',
});

export default {
  data() {
    return {
      progress: 0,
    };
  },
  methods: {
    async uploadVideo(event) {
      const file = event.target.files[0];
      const fileSize = file.size;
      const chunkSize = 5 * 1024 * 1024; // 5MB per chunk

      // First, create a new object in the bucket
      const objectName = file.name;
      const result = await obsClient.createObject({
        Bucket: 'your_bucket_name',
        Key: objectName,
      });

      // Then, split the file into chunks and upload them one by one
      let uploadedSize = 0;
      let partNumber = 1;
      while (uploadedSize < fileSize) {
        const chunk = file.slice(uploadedSize, uploadedSize + chunkSize);
        const partResult = await obsClient.uploadPart({
          Bucket: 'your_bucket_name',
          Key: objectName,
          PartNumber: partNumber,
          UploadId: result.UploadId,
          Body: chunk,
        });
        uploadedSize += chunkSize;
        partNumber += 1;
        const progress = Math.floor((uploadedSize / fileSize) * 100);
        this.progress = progress;
      }

      // Finally, complete the upload
      await obsClient.completeMultipartUpload({
        Bucket: 'your_bucket_name',
        Key: objectName,
        UploadId: result.UploadId,
      });

      console.log('Upload complete!');
    },
  },
};
</script>

在上面的示例中，我们将上传进度保存在了`progress`变量中，并在每个上传块上传完成时更新了这个变量。在模板中，我们使用了`<progress>`标签来显示上传进度。

请注意，上面的示例只是一个基本的示例，实际应用中你可能需要添加错误处理、取消上传等功能。