直接上代码，express接口的入口js，index.js:

const userApi = require(’./api/userApi’); const fs = require(‘fs’); const path = require(‘path’); const bodyParser = require(‘body-parser’); const express = require(‘express’); var app = require(‘express’)(); var https = require(‘https’); var privateKey = fs.readFileSync(‘cert/214123970110593.key’, ‘utf8’); var certificate = fs.readFileSync(‘cert/214123970110593.pem’, ‘utf8’); var credentials = {key: privateKey, cert: certificate}; var httpsServer = https.createServer(credentials, app); app.all(’’, function(req, res, next) { res.header(“Access-Control-Allow-Origin”, ""); res.header(“Access-Control-Allow-Headers”, “X-Requested-With”); res.header(“Access-Control-Allow-Methods”, “PUT,POST,GET,DELETE,OPTIONS”); res.header(“X-Powered-By”, ’ 3.2.1’) res.header(“Content-Type”, “application/json;charset=utf-8”); next(); }); app.use(bodyParser.json()); app.use(bodyParser.urlencoded({ extended: false })); // 后端api路由 app.use(’/api/user’, userApi); // 监听端口 httpsServer.listen(3000, function() { console.log(‘success listen at port:3000…’); });

nginx配置：

user nginx; worker_processes auto; error_log /var/log/nginx/error.log; pid /run/nginx.pid;

Load dynamic modules. See /usr/share/nginx/README.dynamic.

include /usr/share/nginx/modules/*.conf;

events { worker_connections 1024; }

http { log_format main '$remote_addr - $remote_user [$time_local] “$request” ’

access_log  /var/log/nginx/access.log  main;

sendfile            on;
tcp_nopush          on;
tcp_nodelay         on;
keepalive_timeout   65;
types_hash_max_size 2048;
     
include             /etc/nginx/mime.types;
default_type        application/octet-stream;
         
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf; 
upstream nginx_server{
    server 127.0.0.1:3000;  //服务器对应的公网ip，此处忽略
  }
server {
    listen 443;
    server_name  www.example.com;  //我的域名，此处忽略
    # rewrite ^(.*)$  https://$host$1 permanent;  
    #root         /root/soft_index/tomcat/apache-tomcat-8.5.14/webapps/vue/;

    fastcgi_connect_timeout 300s;
    fastcgi_send_timeout 300s;
    fastcgi_read_timeout 300s;

    access_log  /usr/share/nginx/html/survey_access.log;
    error_log  /usr/share/nginx/html/survey_error.log;

    # Load configuration files for the default server block.
    include /etc/nginx/default.d/*.conf;

     location /api {
     proxy_pass https://nginx_server/api;
     }
     location /{
     add_header 'Access-Control-Allow-Origin' '*';
     add_header 'Access-Control-Allow-Credentials' 'true';
     add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
    }

    error_page 404 /404.html;
        location = /40x.html {
    }

    error_page 500 502 503 504 /50x.html;
        location = /50x.html {
    }
}

Settings for a TLS enabled server.

server {
    listen 443;
    server_name localhost;
    ssl on;
    root   /usr/share/nginx/html;

    ssl_certificate "cert/214123970110593.pem";
    ssl_certificate_key "cert/214123970110593.key";
    ssl_session_timeout  5m;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_prefer_server_ciphers on;

    # Load configuration files for the default server block.
    include /etc/nginx/default.d/*.conf;

    location / {
          root   /usr/share/nginx/html;
    }

    error_page 404 /404.html;
        location = /40x.html {
    }

    error_page 500 502 503 504 /50x.html;
        location = /50x.html {
    }
}

} 在此之前，使用http协议，所有页面以及api都正常。 用了https协议之后，如果将我的域名上面的端口改为80端口，则页面可以使用https的协议访问，但是接口都是报404，但是，我想https的默认端口不是443吗，改成443，连页面都访问不了。希望大佬给们指出哪里错了。