使用nginx反向代理，一个80端口下，配置多个微信项目

　　我们要接入微信公众号平台开发，需要填写服务器配置，然后依据接口文档才能实现业务逻辑。但是微信公众号接口只支持80接口（80端口）。我们因业务需求需要在一个公众号域名下面，发布两个需要微信授权的项目，怎么办？

　　我们可以用nginx服务器做反向代理来解决这个问题。nginx服务器对外80端口，然后根据URL参数不同，对内访问不同的项目。

　　nginx配置如下：

　　打开/usr/local/nginx/conf/nginx.conf

 1 worker_processes  4;
 2 error_log  logs/error.log;
 3 events {
 4     worker_connections  1024;
 5 }
 6 http {
 7     include       mime.types;
 8     default_type  application/octet-stream;
 9     sendfile        on;
10     keepalive_timeout  65;
11
12 gzip on;
13 gzip_min_length 1k;
14 gzip_buffers 16 64k;
15 gzip_http_version 1.1;
16 gzip_comp_level 6;
17 gzip_types text/plain application/x-javascript text/css application/xml application/javascript;
18 gzip_vary on;
19
20     #指向项目一
21     upstream backend1  {
22         server  192.168.1:8081;
23     }
24     #指向项目二
25     upstream backend2{
26         192.168.1.1:8082;
27     }
28     proxy_cache_path /tmp/cache levels=1:2 keys_zone=cache:128m inactive=1d  max_size=1G;
29     include vhosts/*;
30 }

　　打开/usr/local/reverse_proxy_nginx/conf/nginx.conf

 1 worker_processes  2;
 2 events {
 3     worker_connections  1024;
 4 }
 5 http {
 6     include       mime.types;
 7     default_type  application/octet-stream;
 8     access_log  /home/nginx_log/reverse_proxy_no1_access.log;
 9     sendfile        on;
10     keepalive_timeout  65;
11     upstream backend1  {
12         #server 192.168.1.1:8181;
13     server  192.168.1.1:8081;
14     }
15     upstream backend2  {
16         #server 192.168.1.1:8082;
17     server  192.168.1.1:8082;
18     }
19     proxy_cache_path /tmp/cache levels=1:2 keys_zone=cache:128m inactive=30m  max_size=1G;
20     server {
21         listen       8081;
22         server_name  h5.xxxx.com;
23
24         location / {
25                 proxy_pass http://backend1;
26             #Proxy Settings
27                proxy_redirect     off;
28              proxy_set_header   Host             $host;
29             proxy_set_header   X-Real-IP        $remote_addr;
30             proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
31             proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
32             proxy_max_temp_file_size 0;
33             proxy_connect_timeout      90;
34             proxy_send_timeout         90;
35             proxy_read_timeout         90;
36             proxy_buffer_size          4k;
37             proxy_buffers              4 32k;
38             proxy_busy_buffers_size    64k;
39             proxy_temp_file_write_size 64k;
40         add_header Nginx-Res "http://backend1";
41         }
42
43         location ~ ^/(h5)(.*)$ {
44               proxy_pass  http://backend2;
45               proxy_redirect off;
46               proxy_set_header Host $host;
47               proxy_cache cache;
48               proxy_cache_valid 200 302 1d;
49               proxy_cache_valid 301 1d;
50               proxy_cache_valid any 1m;
51               expires 1h;
52           add_header Nginx-Res "http://backend2";
53               proxy_ignore_headers "Cache-Control" "Expires" "Set-Cookie";
54               add_header Nginx-Cache "$upstream_cache_status";
55           }
56
57
58         error_page   500 502 503 504  /50x.html;
59         location = /50x.html {
60             root   html;
61         }
62     location ~ .*\.(gif|jpg|png|css|js|ico)(.*) {
63               proxy_pass http://backend1;
64               proxy_redirect off;
65               proxy_set_header Host $host;
66               proxy_cache cache;
67               proxy_cache_valid 200 302 30d;
68               proxy_cache_valid 301 1d;
69               proxy_cache_valid any 1m;
70               expires 30d;
71               proxy_ignore_headers "Cache-Control" "Expires" "Set-Cookie";
72           add_header Nginx-Res "http://backend1";
73               add_header Nginx-Cache "$upstream_cache_status";
74         }

　　当我们打开URL包含h5时，就会跳到8081端口项目中，但是对外还是80端口。所以两个项目可以同时实现微信授权登录等。