节点邮件不起作用，怎么了

Nodemailer doesn't work, what's wrong?

本文关键字：怎么了 不起作用 节点      更新时间：2023-09-26

我在使用Nodemailer时遇到了问题。它适用于本地主机并响应错误消息。这是怎么回事？反应.js代码示例：

import React from 'react'
import styles from './index.css'
export default class Form extends React.Component {
  render() {
    return (
      <form action='/contact' method='post'>
        <h2>Contact me</h2>
        <input name='name' type='text' placeholder='Name' required />
        <input name='location' type='text' placeholder='Location' required />
        <input name='email' type='email' placeholder='Email' required />
        <textarea name='message' />
        <button type='submit'>Send</button>
      </form>
    );
  }
}

这是服务器的一部分.js快递文件：

  app.use(middleware);
  app.use(webpackHotMiddleware(compiler));
  app.get('/', function response(req, res) {
    res.write(middleware.fileSystem.readFileSync(path.join(__dirname, '../dist/index.html')));
    res.end();
  });
  app.post('/contact', function (req, res) {
  // Setup Nodemailer transport
    var mailOpts, smtpTrans;
    smtpTrans = nodemailer.createTransport('SMTP', {
      service: 'Gmail',
      auth: {
        user: "some-my-email@gmail.com",
        pass: "password-of-thisemail"
      }
    });
    //Mail options
    mailOpts = {
      from: 'noreply@domain.io>',
      to: 'my@domain.io',
      subject: 'Website contact form',
      text: 'Hello!'
    };
    smtpTrans.sendMail(mailOpts, function (error, response) {
      // Email not sent
      if (error) {
        res.render('contact', {
          err: true, page: 'contact'
        })
      }
      // Email sent
      else {
        res.render('contact', {
          err: false, page: 'contact'
        })
      }
    });
  });

Error: No default engine was specified and no extension was provided.
   at new View (/home/azat/git/azat-io/node_modules/express/lib/view.js:62:11)
   at EventEmitter.render (/home/azat/git/azat-io/node_modules/express/lib/application.js:569:12)
   at ServerResponse.render (/home/azat/git/azat-io/node_modules/express/lib/response.js:961:7)
   at /home/azat/git/azat-io/scripts/server.js:52:13
   at Nodemailer.sendMail (/home/azat/git/azat-io/node_modules/nodemailer/lib/nodemailer.js:265:16)
   at /home/azat/git/azat-io/scripts/server.js:50:15
   at Layer.handle [as handle_request] (/home/azat/git/azat-io/node_modules/express/lib/router/layer.js:95:5)
   at next (/home/azat/git/azat-io/node_modules/express/lib/router/route.js:131:13)
   at Route.dispatch (/home/azat/git/azat-io/node_modules/express/lib/router/route.js:112:3)
   at Layer.handle [as handle_request] (/home/azat/git/azat-io/node_modules/express/lib/router/layer.js:95:5)
   at /home/azat/git/azat-io/node_modules/express/lib/router/index.js:277:22
   at Function.process_params (/home/azat/git/azat-io/node_modules/express/lib/router/index.js:330:12)
   at next (/home/azat/git/azat-io/node_modules/express/lib/router/index.js:271:10)
   at middleware (/home/azat/git/azat-io/node_modules/webpack-hot-middleware/middleware.js:39:48)
   at Layer.handle [as handle_request] (/home/azat/git/azat-io/node_modules/express/lib/router/layer.js:95:5)
   at trim_prefix (/home/azat/git/azat-io/node_modules/express/lib/router/index.js:312:13)
Failed to load resource: the server responded with a status of 500 (Internal Server Error)

那么，这段代码有什么问题呢？你能帮帮我吗？

即使nodemailer响应错误，您也应该得到响应。你能试着把nodmailer的部分注释掉，看看你是否得到任何回应。在我看来，这与快递有关。

返回

的错误是关于Express的.js而不是关于Nodemailer的。

我认为电子邮件没有发送，因为您在电子邮件中使用了原始密码。您必须从您的Google帐户创建新的应用密码才能发送邮件。有关详细信息，请参阅此答案。

"未指定默认引擎，

未提供扩展"，明确指出您尚未设置默认视图引擎。您可以在此处找到解决方案

。

在撰写本文时，Google 不再支持安全性较低的应用程序。而且您不能使用您的谷歌帐户密码。

您必须生成新的应用密码。

应用专用密码仅在启用两步验证后才能使用。请按照以下步骤获取应用密码

  1. 转到 https://myaccount.google.com/security
  2. 启用 2 因素身份验证
  3. 为电子邮件创建应用专用密码
  4. 将该密码（16 个字符）复制到 Nodemailer 身份验证中的 pass 参数中。
const client = nodemailer.createTransport({
    service: "Gmail",
    auth: {
        user: "username@gmail.com",
        pass: "Google-App-Password-Without-Spaces"
    }
});
client.sendMail(
    {
        from: "sender",
        to: "recipient",
        subject: "Sending it from Heroku",
        text: "Hey, I'm being sent from the cloud"
    }
)
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