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经常使用php开发的web开发人员，刚刚转到nginx+drizzle开发环境，开始估计会遇到lua如何获取drizzle+mysql返回数据的问题，下面给出我的一些经验。
首先修改nginx的配置文件

location /mysql {
set $name $1;
set_quote_sql_str $quote_name $name;
set $sql select * from crawl where id=3;
drizzle_query $sql; drizzle_pass mysql; rds_json on;
}
curl localhost:8080/mysql 返回的结果：[{id:3,url_id:100,url_type:item,date:0000-00-00,url:http://item.taobao.com/item.htm?id=100,status:0,failures:0,start_date:0,unit_id:54848}]
然后在后面加入：
location /lua{ content_by_lua ' local res = ngx.location.capture(/mysql) ngx.say(data: .. res.body) '; }
curl localhost:8080/lua 返回的结果：data: [{id:3,url_id:100,url_type:item,date:0000-00-00,url:http://item.taobao.com/item.htm?id=100,status:0,failures:0,start_date:0,unit_id:54848}]
最后大家也就都能猜到了
location /luafile { content_by_lua_file /usr/local/openresty/nginx/html/test.lua; }
test.lua
local res = ngx.location.capture(/mysql)ngx.say(data: .. res.body)
搞定：curl localhost:8080/luafile 返回的结果：data: [{id:3,url_id:100,url_type:item,date:0000-00-00,url:http://item.taobao.com/item.htm?id=100,status:0,failures:0,start_date:0,unit_id:54848}]
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