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环回无法初始化连接器“loopback-component-storage”

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我正在使用环回存储组件 "loopback-component-storage" 来上传文件 . 但问题是在添加此存储组件和名为Container的Model之后，我无法将应用程序中的模型迁移到数据库 .

以下是我得到的错误

Error: Cannot create data source "storage": Cannot initialize connector "loopback-component-storage": FileSystemProvider: Path does not exist: ./server/files
    at new FileSystemProvider

但我的 /server/files 目录以及通过此描述的项目snapshot

以下是datasources.json文件

{
  "school": {
    "host": "127.0.0.1",
    "port": 3306,
    "url": "",
    "database": "school_db",
    "password": "root",
    "name": "school",
    "user": "root",
    "connector": "mysql"
  },
  "storage": {
    "name": "storage",
    "connector": "loopback-component-storage",
    "provider": "filesystem",
    "root": "./server/files"
  }
}

以下是 model-config.json （部分未满）

{
  "_meta": {
    "sources": [
      "loopback/common/models",
      "loopback/server/models",
      "../common/models",
      "./models"
    ],
    "mixins": [
      "loopback/common/mixins",
      "loopback/server/mixins",
      "../common/mixins",
      "./mixins"
    ]
  },
  "Container": {
    "dataSource": "storage",
    "public": true
  }
}

以下是Container（上传/下载文件）

{
  "name": "Container",
  "plural": "containers",
  "base": "Model",
  "idInjection": true,
  "options": {
    "validateUpsert": true
  },
  "properties": {},
  "validations": [],
  "relations": {},
  "acls": [],
  "methods": {}
}

以下是我更新模型的脚本，比如 Address

var server = require('./../../server');
var ds = server.dataSources.school;
var tables = ['Address'];
ds.autoupdate(tables, function(er,result) {
  if (er) throw er;

  ds.discoverModelProperties('Address', function (err, props) {
    console.log(props);
  });

  ds.disconnect();
});

有人可以帮我解决问题，为什么存储组件抛出异常 files 目录不存在

node.js loopbackjs loopback angular-loopback

3 回答

  • 0

    我认为 root 参数中的问题，

    "storage": {
      "name": "storage",
      "connector": "loopback-component-storage",
      "provider": "filesystem",
      "root": "./files" 
    }

    请参考：Link

    https://strongloop.com/strongblog/working-with-file-storage-and-loopback/

    回复于
  • 0

    尝试在 server.js 中添加此项

    var ds = loopback.createDataSource({
    connector: require('loopback-component-storage'),
    provider: 'filesystem',
    root: 'server/files'
});

var storage = ds.createModel('storage');
app.model(storage);

    检查文档here

    回复于
  • 0

    您是否在服务器文件夹中创建了文件夹？

    如果不？你必须创建一个名为“files”的文件夹

    如是？那么你的路径声明可能是错误的 . 尝试使用这样的完整路径

    "root": "/home/ubuntu/Documents/project/server/files"
    回复于

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