修改nginx.conf。修改前记得备份一下，万一改错了还能还原回去。

server {          listen  80;            server_name localhost;            set $root_path '/usr/local/app/snsprj/public';            root $root_path;                    index index.php index.html index.htm;                    try_files $uri $uri/ @rewrite;                    location @rewrite {                rewrite ^/(.*)$ /index.php?_url=/$1;            }                    location ~ \.php {                        fastcgi_pass 127.0.0.1:9000;                fastcgi_index /index.php;                        fastcgi_split_path_info       ^(.+\.php)(/.+)$;                fastcgi_param PATH_INFO       $fastcgi_path_info;                fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;                include                       fastcgi_params;          }                    location ~* ^/(css|img|js|flv|swf|download)/(.+)$ {                root $root_path;            }                    location ~ /\.ht {                deny all;            }        }