nginx 修改uri中的请求参数

nginx 修改uri中的请求参数

本文主要参考：http://blog.sina.com.cn/s/blog_6d579ff40100wm63.html

在进行nginx 的学习过程中，看到了能够在nginx中修改参数的方法，下面是学习过程中的一些总结和测试。

首先修改配置文件：

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
	upstream backend {

             #ip_hash;

             server 192.168.1.120:8989 weight=5;

             server 192.168.1.120:8080 weight=10;
         }
    server {
        listen       9922;
        server_name  firstProxyServer;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        #location / {
           #root   html;
            #index  index.html index.htm;
        #}
		location /ngtt{
            proxy_pass http://backend/ngtt;
        }
		location /testnnnn{
			set $args "foo=1&bar=2";
            proxy_pass http://localhost:8080/testnnnn;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }

	 server {
        listen       9977;
        server_name  secondProxyServer;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        #location / {
           #root   html;
            #index  index.html index.htm;
        #}
		location / {
            proxy_pass http://localhost:8080;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }

    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

比较关键的地方是这里：

location /testnnnn{
			set $args "foo=1&bar=2";
            proxy_pass http://localhost:8080/testnnnn;
        }

这样在9922端口进行访问的时候会自动的加上访问的参数：

原始tomcat访问：

通过nginx访问9922端口：

通过nginx访问9977端口：

现在发现，可以通过修改内置变量 $args的方式修改参数