我可以在我的 Mac 上本地使用 Nodejs 中的 html-pdf 生成 pdf。当我在 AWS 上使用无服务器部署 GET api 时，一切都失败了。 pdf 未生成，我收到 400 错误请求和消息，如下所示 html-pdf: 收到退出代码 '127'\n/var/task/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs: 加载共享库时出错:libfontconfig.so.1: 无法打开共享对象文件: 没有这样的文件或目录\n
我更改了 html-pdf 包的版本，尝试安装 fontmanager 但没有任何帮助。
//pdf generation class
{
.....
const pdfSettings = {
"border": '1cm',
"header": {
"height": "15mm"
}
};
const PDFBuffer = new Promise((resolve, reject) => {
pdf.create(pdfContent, pdfSettings).toBuffer(
(err, buffer) => {
err ? reject(err) : resolve(buffer);
});
});
const buffer = await PDFBuffer;
return actions.downloadPDF(contactId, buffer);
}
//function which returns pdf in binary to api gateway
downloadPDF(pdfName, pdfBuffer) {
let responseObj = {
statusCode: 200,
isBase64Encoded: true,
headers: {
'Content-type': 'application/pdf',
'accept-ranges': 'bytes',
'Content-Disposition': 'attachment; filename=' + pdfName + '.pdf'
},
body: pdfBuffer && JSON.stringify(pdfBuffer.toString('base64'))
}
return responseObj;
}
我应该能够使用 AWS 中的 GET api 生成 pdf。请告诉我任何可以帮助我解决此问题的宝贵建议。提前致谢
最佳答案
在 aws ubuntu 上遇到了与 html-pdf 相同的问题，这就是我所做的。
使用示例测试 html-pdf 包:
root@APP-AP-1A-01:/home/user01/server-a7# node node_modules/html-pdf/bin/index.js node_modules/html-pdf/examples/businesscard/businesscard.html /tmp/test-prod.pdf
/home/user01/server-a7/node_modules/html-pdf/bin/index.js:30
if (err) throw err
^
Error: html-pdf: Received the exit code '127'
/home/user01/server-a7/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs: error while loading shared libraries: libfontconfig.so.1: cannot open shared object file: No such file or directory
at ChildProcess.respond (/home/user01/server-a7/node_modules/html-pdf/lib/pdf.js:121:31)
at ChildProcess.emit (events.js:210:5)
at Process.ChildProcess._handle.onexit (internal/child_process.js:272:12)
^ 在运行 Ubuntu (4.4.0-1072-aws) 的 Aws 上出现此错误
这是由于缺少 phantomjs 所依赖的库； npm -i 没有在服务器上很好地安装/更新它。
步骤如下:
- ldd - 打印共享对象依赖项(请注意，它已标记，libfontconfig.so.1 => 未找到)
- 安装缺少的库(apt-get install fontconfig)
- 使用 ldd 再次检查依赖关系
- 运行示例，这次它从 html 创建了 pdf
以 root 用户身份运行或使用 sudo :-
root@APP-AP-1A-01:/home/user01/server-a7# ldd /home/user01/server-a7/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs
linux-vdso.so.1 => (0x00007ffea155d000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fd639645000)
libfontconfig.so.1 => not found
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007fd63939b000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd639197000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fd638f8f000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd638d72000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fd6389f0000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd6386e7000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fd6384d1000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd638107000)
/lib64/ld-linux-x86-64.so.2 (0x00007fd63985f000)
libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007fd637ee2000)
root@APP-AP-1A-01:/home/user01/server-a7# ls -l /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
ls: cannot access '/usr/lib/x86_64-linux-gnu/libfontconfig.so.1': No such file or directory
root@APP-AP-1A-01:/home/user01/server-a7# apt-get install fontconfig
Reading package lists... Done
:
The following additional packages will be installed:
fontconfig-config fonts-dejavu-core libfontconfig1
The following NEW packages will be installed:
fontconfig fontconfig-config fonts-dejavu-core libfontconfig1
:
Do you want to continue? [Y/n] y
Get:1 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 fonts-dejavu-core all 2.35-1 [1,039 kB]
Get:2 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu xenial-updates/main amd64 fontconfig-config all 2.11.94-0ubuntu1.1 [49.9 kB]
Get:3 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu xenial-updates/main amd64 libfontconfig1 amd64 2.11.94-0ubuntu1.1 [131 kB]
Get:4 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu xenial-updates/main amd64 fontconfig amd64 2.11.94-0ubuntu1.1 [178 kB]
Fetched 1,398 kB in 1s (928 kB/s)
:
:
Regenerating fonts cache... done.
Processing triggers for libc-bin (2.23-0ubuntu11.2) ...
root@APP-AP-1A-01:/home/user01/server-a7# ldd /home/user01/server-a7/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs
linux-vdso.so.1 => (0x00007ffcdf49c000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f65a4723000)
libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f65a44e0000)
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f65a4236000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f65a4032000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f65a3e2a000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f65a3c0d000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f65a388b000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f65a3582000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f65a336c000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f65a2fa2000)
/lib64/ld-linux-x86-64.so.2 (0x00007f65a493d000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f65a2d79000)
libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f65a2b54000)
root@APP-AP-1A-01:/home/user01/server-a7# node node_modules/html-pdf/bin/index.js node_modules/html-pdf/examples/businesscard/businesscard.html /tmp/test-prod.pdf
root@APP-AP-1A-01:/home/user01/server-a7# ls -lrt /tmp/test-prod.pdf
-rw-r--r-- 1 root root 11250 Jul 10 10:05 /tmp/test-prod.pdf
在/tmp/test-prod.pdf 中创建 pdf
关于node.js - 使用 html-pdf npm 包生成 pdf，作为 GET api 在 AWS 上部署，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57776244/