在Angular2 CLI项目中,我最终实现了Vaadin的this上传按钮。按钮用户界面有效,但我不知道如何实际上传文件任何地方。
我一直在寻找关于快速服务器的解决方案来监听文件上传, multer 或节点服务器,我真的不知道如何写这样的服务器,把它放在哪里,如何启动它,如何访问它等等。我认为像文件上传这样简单的东西应该更容易实现,但似乎不是。
什么是简单的解决方案,以便在Angular2旁边实现,以便按钮实际上传文件到某处,以便我可以在以后下载它们?
答案 0 :(得分:8)
在ng2-uploader repo中找到解决方案并适应Vaadin Upload。
component.html
<div *ngIf="newName.valid">
<vaadin-upload
target="http://localhost:10050/upload"
</vaadin-upload>
</div>
server.js
'use strict';
const Hapi = require('hapi');
const Inert = require('inert');
const Md5 = require('md5');
const Multiparty = require('multiparty');
const fs = require('fs');
const path = require('path');
const server = new Hapi.Server();
server.connection({ port: 10050, routes: { cors: true } });
server.register(Inert, (err) => {});
const upload = {
payload: {
maxBytes: 209715200,
output: 'stream',
parse: false
},
handler: (request, reply) => {
const form = new Multiparty.Form();
form.parse(request.payload, (err, fields, files) => {
if (err) {
return reply({status: false, msg: err});
}
let responseData = [];
files.file.forEach((file) => {
let fileData = fs.readFileSync(file.path);
const originalName = file.originalFilename;
const generatedName = Md5(new Date().toString() +
originalName) + path.extname(originalName);
const filePath = path.resolve(__dirname, 'uploads',
originalName);
fs.writeFileSync(filePath, fileData);
const data = {
originalName: originalName,
generatedName: generatedName
};
responseData.push(data);
});
reply({status: true, data: responseData});
});
}
};
const uploads = {
handler: {
directory: {
path: path.resolve(__dirname, 'uploads')
}
}
};
server.route([
{ method: 'POST', path: '/upload', config: upload },
{ method: 'GET', path: '/uploads/{path*}', config: uploads }
]);
server.start(() => {
console.log('Upload server running at', server.info.uri);
});
对于那些需要在启动this is an awesome solution运行的server.js测试和工作的人来说,这是一个奖励。