nginx+lua 根据指定路径反向代理

location /imgproxytest{
if ($uri ~ ".*.(jpg|png|jpeg|bmp|gif|swf|css)$"){
rewrite_by_lua 'local url = ngx.var.request_uri local new_url = string.gsub(url,"/imgproxytest","") ngx.redirect("http://test-imaging.oss-cn-hangzhou.aliyuncs.com"..new_url) ';
}
}

location /imgproxyprod {
if ($uri ~ ".*.(jpg|png|jpeg|bmp|gif|swf|css)$"){
rewrite_by_lua 'local url = ngx.var.request_uri local new_url = string.gsub(url,"/imgproxyprod","") ngx.redirect("http://imaging.oss-cn-hangzhou.aliyuncs.com"..new_url) ';
}

}