javascript - 在哪里可以获取 meteor 文件中上传的文件？

Question

我正在使用 Meteor 和 React JS。我还添加了 Meteor 文件。

https://github.com/VeliovGroup/Meteor-Files

通过使用此代码，

this.Images = new FilesCollection({collectionName: 'Images'});
export default class Logo extends TrackerReact(React.Component){
    constructor(){
    ...
    Meteor.subscribe('files.images.all');
    }
uploadLogo(e){
    if (e.currentTarget.files && e.currentTarget.files[0]) {
      // We upload only one file, in case 
      // there was multiple files selected
      var file = e.currentTarget.files[0];
      if (file) {
        var uploadInstance = Images.insert({
          file: file,
          streams: 'dynamic',
          chunkSize: 'dynamic',
          transport: 'http'
        }, false);

        uploadInstance.on('start', function() {
          //template.currentUpload.set(this);
        });

        uploadInstance.on('end', function(error, fileObj) {
          if (error) {
            alert('Error during upload: ' + error.reason);
          } else {
              console.log("done");
            alert('File "' + fileObj.name + '" successfully uploaded');
          }
        });
        uploadInstance.start();
      }

    }else{
        console.log("error");
    }
}
render(){
...
<input type="file" id="fileinput" onChange={this.uploadLogo.bind(this)} />
}

我可以上传文件，但我在目录中看不到任何文件。这是我的publish.js，

this.Images = new Meteor.Files({
  debug: true,
  collectionName: 'Images',
  allowClientCode: false, // Disallow remove files from Client
  onBeforeUpload: function (file) {
    // Allow upload files under 10MB, and only in png/jpg/jpeg formats
    if (file.size <= 1024*1024*10 && /png|jpg|jpeg/i.test(file.extension)) {
      return true;
    } else {
      return 'Please upload image, with size equal or less than 10MB';
    }
  }
});
Meteor.publish('files.images.all', function () {
    return Images.find().cursor;
  });

如何显示图像？如何限制用户只能上传图片文件？

对我来说，他们的 API 文档并不丰富。我无法理解他们在文档中谈论的内容。

Answer 1

默认情况下上传的文件存储在文件系统中。阅读常见问题解答:

Where are files stored by default?: by default if config.storagePathisn't passed into Constructor it's equals to assets/app/uploads andrelative to running script:

• On development stage:yourDevAppDir/.meteor/local/build/programs/server

Note: All fileswill be removed as soon as your application rebuilds or you run meteorreset. To keep your storage persistent during development use anabsolute path outside of your project folder, e.g. /data directory.

• On production: yourProdAppDir/programs/server

因此您需要使用config.storagePath设置位置