如果你的节点应用程序安装在IIS上，你可以在web.config中这样做

<configuration>
    <system.webServer>

        <!-- indicates that the hello.js file is a node.js application 
    to be handled by the iisnode module -->

        <handlers>
            <add name="iisnode" path="src/index.js" verb="*" modules="iisnode" />
        </handlers>

        <!-- use URL rewriting to redirect the entire branch of the URL namespace
    to hello.js node.js application; for example, the following URLs will 
    all be handled by hello.js:
    
        http://localhost/node/express/myapp/foo
        http://localhost/node/express/myapp/bar
        -->
        <rewrite>
            <rules>
                <rule name="HTTPS force" enabled="true" stopProcessing="true">
                    <match url="(.*)" />
                    <conditions>
                        <add input="{HTTPS}" pattern="^OFF$" />
                    </conditions>
                    <action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}" redirectType="Permanent" />
                </rule>
                <rule name="sendToNode">
                    <match url="/*" />
                    <action type="Rewrite" url="src/index.js" />
                </rule>
            </rules>
        </rewrite>

        <security>
            <requestFiltering>
                <hiddenSegments>
                    <add segment="node_modules" />
                </hiddenSegments>
            </requestFiltering>
        </security>

    </system.webServer>
</configuration>

感谢这个家伙: https://www.tonyerwin.com/2014/09/redirecting-http-to-https-with-nodejs.html

如果安全，请求通过https，否则重定向到https

app.enable('trust proxy')
app.use((req, res, next) => {
    req.secure ? next() : res.redirect('https://' + req.headers.host + req.url)
})

从0.4.12开始，我们还没有使用Node的HTTP/HTTPS服务器在同一个端口上监听HTTP和HTTPS的真正干净的方法。

有些人通过让Node的HTTPS服务器(这也适用于Express.js)侦听443(或其他端口)，并让一个小型http服务器绑定到80并将用户重定向到安全端口来解决这个问题。

如果你必须能够在一个端口上处理这两个协议，那么你需要把nginx, lighttpd, apache，或其他一些web服务器放在那个端口上，并充当Node的反向代理。

经过多年研究从http到https的完美重定向，我在这里找到了完美的解决方案。

const http = require("http");
const https = require("https");

const { parse } = require("url");
const next = require("next");
const fs = require("fs");

const ports = {
http: 3000,
https: 3001
}

const dev = process.env.NODE_ENV !== "production";
const app = next({ dev });
const handle = app.getRequestHandler();

const httpsOptions = {
key: fs.readFileSync("resources/certificates/localhost-key.pem"),
cert: fs.readFileSync("resources/certificates/localhost.pem")
};

// Automatic HTTPS connection/redirect with node.js/express
// source: https://stackoverflow.com/questions/7450940/automatic-https- 
connection-redirect-with-node-js-express
app.prepare().then(() => {

// Redirect from http port to https
http.createServer(function (req, res) {
    res.writeHead(301, { "Location": "https://" + req.headers['host'].replace(ports.http, ports.https) + req.url });
    console.log("http request, will go to >> ");
    console.log("https://" + req.headers['host'].replace(ports.http, ports.https) + req.url);
    res.end();
}).listen(ports.http, (err) => {
    if (err) throw err;
    console.log("ready - started server on url: http://localhost:" + ports.http);
});

https.createServer(httpsOptions, (req, res) => {
    const parsedUrl = parse(req.url, true);
    handle(req, res, parsedUrl);
}).listen(ports.https, (err) => {
    if (err) throw err;
    console.log("ready - started server on url: https://localhost:" + ports.https);
});
});

我找到了req。协议工作时，我使用express(没有测试，但我怀疑它工作)。使用当前节点0.10.22和express 3.4.3

app.use(function(req,res,next) {
  if (!/https/.test(req.protocol)){
     res.redirect("https://" + req.headers.host + req.url);
  } else {
     return next();
  } 
});

这招对我很管用:

app.use(function(req,res,next) {
    if(req.headers["x-forwarded-proto"] == "http") {
        res.redirect("https://[your url goes here]" + req.url, next);
    } else {
        return next();
    } 
});