Nginx + image_filter_module + fastdfs实现上传图片的实时缩略图预览

1. 到nginx源码目录配置加载模块

   ./configure --add-module=/home/fastdfs-nginx-module-master/src/ --prefix=/usr/local/nginx --user=nobody --group=nobody --with-http_gzip_static_module --with-http_gunzip_module --with-http_image_filter_module

    

2. make编译，覆盖nginx目录文件
3. 修改nginx配置文件

   location ~ /group1/M00/(.*)\.((?i)jpg|jpeg|gif|png)_([0-9]+)x([0-9]+) {
                   ngx_fastdfs_module;
                   rewrite group1/M00(.+)\.((?i)jpg|jpeg|gif|png)_(\d+)x(\d+)$ group1/M00$1.$2 break;
                   image_filter crop $3 $4;
                   image_filter_jpeg_quality 50;
                   image_filter_buffer 2M;
           } 
       
           location ~ /group1/M00/(.+)\.?(.+) {
                   root /home/fastdfs/storage/data;
                   ngx_fastdfs_module;
           }

    

4. 重启nginx