配置nginx及其抓取请求体相应体

1、设置nginx日志的输出格式

log_format  main    'request:$request|request_body:$request_body|time_is:$time_iso8601|remote_addr:$remote_addr|remote_user:$remote_user|response_time:$upstream_response_time|request_time:$request_time|browser_type:$http_user_agent|response_body:$resp_body';

把该条信息加入到下图的位置中:

2、在http下面的upstream中配置应用服务器（可以配置多台以实现负载均衡）

3、在http下的server中配置nginx的端口以及映射应用服务器

set $resp_body ""; 
    access_log  /usr/local/nginx/logs/access.log  main;
        location / {

        lua_need_request_body on;
            body_filter_by_lua '
                        local resp_body = string.sub(ngx.arg[1], 1, 1000)
                        ngx.ctx.buffered = (ngx.ctx.buffered or"") .. resp_body
                        if ngx.arg[2] then
                                ngx.var.resp_body = ngx.ctx.buffered
                        end
                       ';
            root   html;
            index  index.html index.htm;
        proxy_set_header Host $host:$server_port;
            proxy_set_header X-Forwarded-For $remote_addr;    
            proxy_pass http://redApp;
        }

4、重启nginx
./sbin/nginx -s reload