Javascript 使用Socket.io+;木偶演员+;Node.js
我目前正在尝试在服务器端创建一个PDF文件,其中Node.js来自HTML,CSS仍在工作。然后我想把它附加到一封我还没有找到方法的电子邮件上,但我遇到了一个更大的问题 我是Node.js新手,无法使用函数。服务器端有我的代码Javascript 使用Socket.io+;木偶演员+;Node.js,javascript,node.js,socket.io,puppeteer,nodemailer,Javascript,Node.js,Socket.io,Puppeteer,Nodemailer,我目前正在尝试在服务器端创建一个PDF文件,其中Node.js来自HTML,CSS仍在工作。然后我想把它附加到一封我还没有找到方法的电子邮件上,但我遇到了一个更大的问题 我是Node.js新手,无法使用函数。服务器端有我的代码 const fs = require('fs'); const puppeteer = require('puppeteer') const ConnectionPort = 8080; const path = require('path'); const app =
const fs = require('fs');
const puppeteer = require('puppeteer')
const ConnectionPort = 8080;
const path = require('path');
const app = require('express')();
const http = require('http').createServer(app);
const io = require('socket.io')(http);
io.on('connection', (socket) => {
console.log('a user connected');
socket.on('disconnect', () => {
console.log('user disconnected');
});
socket.on('Creation of PDF Document', (PageHTML, NumberOfTheFile, HeadHTML) => {
console.log('A creation was requested'); // I see that on the console
(async function(){
try{
console.log('Got in the try') // I can't see that on the console
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.setContent('<head>' + HeadHTML + '</head><body>' + PageHTML + '</body>');
await page.emulateMedia('screen');
await page.pdf({
path: path.join(__dirname, 'Files', NumberOfTheFile + '.pdf'),
format: "Legal",
printBackground: true
});
console.log('Creation done!');
await browser.close();
process.exit();
} catch (e)
{
console.log('Error: ', e)
}
})
});
/////////////// Other stuff I was going for that works ////////////////////
socket.on('Asking ID', () => {
console.log('a user is trying to ask for an ID');
var array = fs.readFileSync('ID_Liste.txt').toString().split("\n");
var i = 0;
for(i in array)
{
console.log(array[i]);
}
var ID_BonCommande = parseInt(array[i]) + 1;
fs.appendFile('ID_Liste.txt', " \n \n \n" + "Operation Time : " + "\n" + Date() + " \n\n" + "ID_BonCommande : " + "\n" + ID_BonCommande + '', function (err) {
if (err) throw err;
console.log('ID added : ' + ID_BonCommande);
});
io.emit('Reception ID', ID_BonCommande);
});
////////////////////////////////////////////////////////////////////////////////
});
http.listen(ConnectionPort , () => {
console.log('listening on *: ' +ConnectionPort );
});
我试过这个:
socket.on('Creation of PDF Document', (PageHTML, NumberOfTheFile, HeadHTML) => {
console.log('A creation was requested'); // can't go further
async function Test(){
try{
console.log('Got in the try')
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.setContent('<head>' + HeadHTML + '</head><body>' + PageHTML + '</body>');
await page.emulateMedia('screen');
await page.pdf({
path: path.join(__dirname, 'Files', NumberOfTheFile + '.pdf'),
format: "Legal",
printBackground: true
});
console.log('Creation done!');
} catch (e)
{
console.log('Error: ', e)
}
}
Test();
});
或者任何可以将CSS传输到服务器的东西。我的CSS现在是标签样式,但我不确定这是正确的决定
我走错方向了
编辑*
明白了
我刚把样式标签放在正文中,就可以使用了。Ho Yeti,你能给我们看一下整个node.js页面吗?包括您的“require()”?我原以为所有内容都包含了太多信息,但事实就是如此。我不明白您面临的错误是什么。虽然您声明了一个从未被调用过的函数:
(async function(){})
,但在这里,该函数只是定义的,如果您想调用它,请添加()
,尽管您不需要该函数,但您可以只在套接字中编写代码。我不知道如何真正工作async
甚至木偶演员
socket.on('Creation of PDF Document', (PageHTML, NumberOfTheFile, HeadHTML) => {
console.log('A creation was requested'); // can't go further
async function Test(){
try{
console.log('Got in the try')
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.setContent('<head>' + HeadHTML + '</head><body>' + PageHTML + '</body>');
await page.emulateMedia('screen');
await page.pdf({
path: path.join(__dirname, 'Files', NumberOfTheFile + '.pdf'),
format: "Legal",
printBackground: true
});
console.log('Creation done!');
} catch (e)
{
console.log('Error: ', e)
}
}
Test();
});
document.getElementsByTagName('style').innerHTML