HarmonyOS 鸿蒙Next选择相册后上传到服务器

1、拉起相册，选择图片  沙箱地址：file://media/Photo/2/IMG_1721054311_001/screenshot_20240715_223651.jpg

    let PhotoSelectOptions = new photoAccessHelper.PhotoSelectOptions();
PhotoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE;
PhotoSelectOptions.maxSelectNumber = 1;
let photoPicker = new photoAccessHelper.PhotoViewPicker();
let photoSelectResult: photoAccessHelper.PhotoSelectResult = await photoPicker.select(PhotoSelectOptions);
if (photoSelectResult.photoUris.length > 0) {
this.user.profile = photoSelectResult.photoUris[0];
}<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

2、读取图片为buffer

    const file = fs.openSync(photoSelectResult.photoUris[0], fs.OpenMode.READ_WRITE);
this.photoSize = fs.statSync(file.fd).size;
console.info('Photo Size: ’ + this.photoSize);
let buffer = new ArrayBuffer(this.photoSize);
fs.readSync(file.fd, buffer);
fs.closeSync(file);<button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button>

3、写入缓存目录（必须）：写入地址：/data/storage/el2/base/haps/entry/cache/abc.jpg

    let cacheDir = (getContext(this) as common.UIAbilityContext).cacheDir
let p = cacheDir + ‘/abc.jpg’

<span class="hljs-keyword"><span class="hljs-keyword">try</span></span> {
  <span class="hljs-keyword"><span class="hljs-keyword">let</span></span> file2 = fs.openSync(p, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
  <span class="hljs-keyword"><span class="hljs-keyword">let</span></span> writeLen = fs.writeSync(file2.fd, buffer);
  console.info(<span class="hljs-string"><span class="hljs-string">"The length of str is: "</span></span> + writeLen);
} <span class="hljs-keyword"><span class="hljs-keyword">catch</span></span> (err) {
  console.error(`Failed to request the upload. err: ${<span class="hljs-built_in"><span class="hljs-built_in">JSON</span></span>.stringify(err)}`);
}</code><button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button></pre>  <p>4、上传文件&nbsp; 文件地址：internal://cache/abc.jpg</p>  <pre style="position: relative;"><code class="language-javascript hljs  hljs ">    request.uploadFile(getContext(), {
    url: <span class="hljs-string"><span class="hljs-string">"http://192.168.1.4:8080/upload"</span></span>,
    method:<span class="hljs-string"><span class="hljs-string">"POST"</span></span>,
    files:[{filename:<span class="hljs-string"><span class="hljs-string">'abc.jpg'</span></span>,name:<span class="hljs-string"><span class="hljs-string">'files'</span></span>,uri: <span class="hljs-string"><span class="hljs-string">'internal://cache/abc.jpg'</span></span> ,type:<span class="hljs-string"><span class="hljs-string">'jpg'</span></span>}],
    header:{
      <span class="hljs-string"><span class="hljs-string">'Accept'</span></span>: <span class="hljs-string"><span class="hljs-string">'*/*'</span></span>,
      <span class="hljs-string"><span class="hljs-string">'content-type'</span></span>: <span class="hljs-string"><span class="hljs-string">'multipart/form-data'</span></span>
    },
    data: [],
  })</code><button style="position: absolute; padding: 4px 8px 0px; cursor: pointer; top: 8px; right: 8px; font-size: 14px;">复制</button></pre>  <p>注意事项：上传文件的地址：internal://cache/abc.jpg&nbsp; &nbsp;经过测试目前好像只支持cache目录，而且还不是绝对地址，所以要把沙箱中的文件复制到cache缓存文件夹才可以上传，刚刚调通，很多地方名称还没参数化，有卡这的可以参考解决了</p></div></div><br><br>关于HarmonyOS 鸿蒙Next选择相册后上传到服务器的问题，您也可以访问：https://www.itying.com/category-93-b0.html 联系官网客服。