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>

var express = require('express');
var app = express();

app.get('*',function (req, res) {
    res.redirect('https://<domain>' + req.url);
});

app.listen(80);

这就是我们所使用的，而且效果非常好!

使用Nginx，你可以利用“x-forward -proto”头文件:

function ensureSec(req, res, next){
    if (req.headers["x-forwarded-proto"] === "https"){
       return next();
    }
    res.redirect("https://" + req.headers.host + req.url);  
}

我使用Basarat提出的解决方案，但我还需要覆盖端口，因为我曾经有2个不同的端口用于HTTP和HTTPS协议。

res.writeHead(301, { "Location": "https://" + req.headers['host'].replace(http_port,https_port) + req.url });

我也喜欢使用非标准端口，这样就可以在没有root权限的情况下启动nodejs。 我喜欢8080和8443，因为我在tomcat上编程了很多年。

我的完整文件变成

var fs = require('fs');
var http = require('http');
var http_port    =   process.env.PORT || 8080; 
var app = require('express')();

// HTTPS definitions
var https = require('https');
var https_port    =   process.env.PORT_HTTPS || 8443; 
var options = {
   key  : fs.readFileSync('server.key'),
   cert : fs.readFileSync('server.crt')
};

app.get('/', function (req, res) {
   res.send('Hello World!');
});

https.createServer(options, app).listen(https_port, function () {
   console.log('Magic happens on port ' + https_port); 
});

// Redirect from http port to https
http.createServer(function (req, res) {
    res.writeHead(301, { "Location": "https://" + req.headers['host'].replace(http_port,https_port) + req.url });
    console.log("http request, will go to >> ");
    console.log("https://" + req.headers['host'].replace(http_port,https_port) + req.url );
    res.end();
}).listen(http_port);

然后我使用iptable在我的HTTP和HTTPS端口上forword80和443流量。

sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080
sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 443 -j REDIRECT --to-port 8443

这招对我很管用:

/* Headers */
require('./security/Headers/HeadersOptions').Headers(app);

/* Server */
const ssl = {
    key: fs.readFileSync('security/ssl/cert.key'),
    cert: fs.readFileSync('security/ssl/cert.pem')
};
//https server
https.createServer(ssl, app).listen(443, '192.168.1.2' && 443, '127.0.0.1');
//http server
app.listen(80, '192.168.1.2' && 80, '127.0.0.1');
app.use(function(req, res, next) {
    if(req.secure){
        next();
    }else{
        res.redirect('https://' + req.headers.host + req.url);
    }
});

建议在重定向到https之前添加头

现在，当你这样做时:

curl http://127.0.0.1 --include

你会得到:

HTTP/1.1 302 Found
//
Location: https://127.0.0.1/
Vary: Accept
Content-Type: text/plain; charset=utf-8
Content-Length: 40
Date: Thu, 04 Jul 2019 09:57:34 GMT
Connection: keep-alive

Found. Redirecting to https://127.0.0.1/

我使用快捷4.17.1

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();
    } 
});