无法在 NodeJS 中使用 html-pdf 生成 PDF（包含所有详细信息）
[英]cant generate the PDF(with all details) using html-pdf in NodeJS
问题描述
I am a bit stuck when creating the PDF from the html template.
从 html 模板创建 PDF 时，我有点卡住了。 if i use the static entries it does work but i am looking to generate the pdf for multiple items and the items can vary each time, i am not sure if i am missing something any suggestion guys please.如果我使用 static 条目，它确实可以工作，但我希望为多个项目生成 pdf，并且项目每次都会有所不同，我不确定我是否遗漏了任何建议。
after i added .map function in the pdfTemplate.js file as below to go through each object and get the price, it seems to not working properly after i added .map function in the pdfTemplate.js file as below to go through each object and get the price, it seems to not working properly
snippet from the main ./documents/pdfTemplate Js file来自主./documents/pdfTemplate Js 文件的片段
customer_dataand_Itemsbought.map((eachitem) => {
total = total + eachitem.price;
return ` <tr class="heading">
<td>Bought items:</td>
<td>Price</td>
</tr>
<tr class="item">
<td>First item:</td>
<td>${eachitem.price}$</td>
</tr>
<tr class="item">
<td>Second item:</td>
<td>${eachitem.price}$</td>
</tr>`;
})`
Note: PDF is still generating but missing every bit that i included after the.map function Note: PDF 仍在生成，但缺少我在之后包含的每一位。
main ./documents/pdfTemplate Js file主./documents/pdfTemplate Js 文件
module.exports = (customer_dataand_Itemsbought) => {
//customer_dataand_Itemsbought is array of objects[obj[0],obj[1],...] and at obj[0] is the customer details object and after that each index object contains the customer bought items detail/price
let customer_Name = customer_dataand_Itemsbought[0].user_FirstName;
let receipt_Id = customer_dataand_Itemsbought[0].Invoice_No_latest;
let total_Price;
customer_dataand_Itemsbought.shift();
const today = new Date();
return `
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>PDF Result Template</title>
<style>
........
</style>
</head>
<body>
<div class="invoice-box">
<table cellpadding="0" cellspacing="0">
<tr class="top">
<td colspan="2">
<table>
<tr>
<td class="title"><img src="https://i2.wp.com/cleverlogos.co/wp-content/uploads/2018/05/reciepthound_1.jpg?fit=800%2C600&ssl=1"
style="width:100%; max-width:156px;"></td>
<td>
Datum: ${`${today.getDate()}. ${today.getMonth() + 1}. ${today.getFullYear()}.`}
</td>
</tr>
</table>
</td>
</tr>
<tr class="information">
<td colspan="2">
<table>
<tr>
<td>
Customer name: ${customer_Name} // this still appears on the PDF
</td>
<td>
Receipt number: ${receipt_Id} // this still appears on the PDF
</td>
</tr>
</table>
</td>
</tr>`;
// here i used the .map function to go through each array object. nothing appears from here onwards on the pdf
customer_dataand_Itemsbought.map((eachitem) => {
total = total + eachitem.price;
return ` <tr class="heading">
<td>Bought items:</td>
<td>Price</td>
</tr>
<tr class="item">
<td>First item:</td>
<td>${eachitem.price}$</td>
</tr>
<tr class="item">
<td>Second item:</td>
<td>${eachitem.price}$</td>
</tr>`;
})`
</table>
<br />
<h1 class="justify-center">Total price: ${total_Price}£</h1>
</div>
</body>
</html>
`;
};
at server.js side在server.js端
const pdf = require("html-pdf");
const pdfTemplate = require("./documents/pdfTemplate");
pdf.create(pdfTemplate(customer_dataand_Itemsbought), {}).toFile("./filename.pdf", function (err, res) {
if (err) {
console.log(err);
}
});
1 个解决方案
解决方案1
1 已采纳 2020-07-27 15:22:45
When you have enclosed map function's body in curly braces - meaning you have multiple statements for processing data, you are expected to return from it explicitly:当您将 map 函数的主体括在花括号中时 - 这意味着您有多个用于处理数据的语句，您应该明确地从中返回：
customer_dataand_Itemsbought.map((eachitem) => {
total = total + eachitem.price;
return `<tr class="heading">
<td>Bought items:</td>
<td>Price</td>
</tr>
<tr class="item">
<td>First item:</td>
<td>${eachitem.price}$</td>
</tr>
<tr class="item">
<td>Second item:</td>
<td>${eachitem.price}$</td>
</tr>`;
})
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