节点html-pdf自动配置失败

Question

我有一个使用html-pdf包的简单项目，我想用以下代码创建一个简单的pdf文件：

...
    pdf.create(html).toStream(function(err, stream){
            if (err) reject(err) ;
            else  stream.pipe(fs.createWriteStream(path.join(__dirname, '../../../assets/docs/idv_docs/')+data.link+'.pdf'));
          });
...

但是我得到了这个错误消息：

Error: html-pdf: Received the exit code '1'

    cc-server_1  | Auto configuration failed
    cc-server_1  | 139666354437760:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:185:filename(libssl_conf.so): libssl_conf.so: cannot open shared object file: No such file or directory
    cc-server_1  | 139666354437760:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244:
    cc-server_1  | 139666354437760:error:0E07506E:configuration file routines:MODULE_LOAD_DSO:error loading dso:conf_mod.c:285:module=ssl_conf, path=ssl_conf
    cc-server_1  | 139666354437760:error:0E076071:configuration file routines:MODULE_RUN:unknown module name:conf_mod.c:222:module=ssl_conf
    cc-server_1  |
    cc-server_1  |     at ChildProcess.respond (/usr/src/app/node_modules/html-pdf/lib/pdf.js:121:31)
    cc-server_1  |     at ChildProcess.emit (events.js:311:20)
    cc-server_1  |     at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)

Answer 1

我也有同样的问题，问题出在openssl.cnf文件上。

我的操作系统是Debian 10。

请尝试以下步骤

步骤1:转到/etc/ssl/openssl.cnf

步骤2:找到下面这一行并对其进行注释。

# System default
openssl_conf = default_conf 

步骤3:重新启动节点服务器

Answer 2

我使用create it为我工作

//pdf.js

const pdf = require('html-pdf');

function toPDF (html, options,  output) {
    return new Promise(function (resolve, reject) {
        pdf.create(html, options).toFile(output, function(error, response) {
            if (error) {
                reject(error);
            }
            else {
                resolve(response);
            }
        });
    });
}

module.exports = {
    toPDF: toPDF
}

使用时

const options = { format: 'A4', base: './assets' }
const fileName = `PDFDemo-${Date.now()}`
const output = `./pdf/${fileName}.pdf`
let pdfResult = await pdfUtil.toPDF(html, options, output)