应用错误收集

nginx / FastCGI应用程序每次请求多次加载页面

时间：2013-05-19 02:35:51

标签： c++ nginx fastcgi

我正在关注this tutorial，我稍微修改了代码并添加了一个计数器。该页面显示“Hello World”，然后显示计数器。现在，奇怪的是，代码编译得很好，但每次刷新页面时计数都会增加2倍！

我正在产生这样的过程：spawnfcgi.exe -a 127.0.0.1 -p 8000 -f myapp.exe

一切都正常加载，但每次刷新页面时，计数再次从0跳到2到4等。如果我要在文件中写一行，则会多次写入同一行，每次加载网页时都会增加。我的问题是，这是FastCGI应用程序的预期效果吗？或者我的代码和/或FastCGI / nginx配置中是否存在某种错误？

main.cpp（Hello World）

#include <iostream>
#include "fcgio.h"

using namespace std;

int main(void)
{
     int gcount = 0;

     // Backup the stdio streambufs
     streambuf * cin_streambuf  = cin.rdbuf();
     streambuf * cout_streambuf = cout.rdbuf();
     streambuf * cerr_streambuf = cerr.rdbuf();

     FCGX_Request request;

     FCGX_Init();
     FCGX_InitRequest(&request, 0, 0);

     while (FCGX_Accept_r(&request) == 0)
     {
         fcgi_streambuf cin_fcgi_streambuf(request.in);
         fcgi_streambuf cout_fcgi_streambuf(request.out);
         fcgi_streambuf cerr_fcgi_streambuf(request.err);

         cin.rdbuf(&cin_fcgi_streambuf);
         cout.rdbuf(&cout_fcgi_streambuf);
         cerr.rdbuf(&cerr_fcgi_streambuf);

         cout << "Content-type: text/html\r\n"
         << "\r\n"
         << "<html>\n"
         << "  <head>\n"
         << "    <title>Hello, World!</title>\n"
         << "  </head>\n"
         << "  <body>\n"
         << "    <h1>Hello, World!</h1>\n"
         << gcount++
         << "  </body>\n"
         << "</html>\n";

         // Note: the fcgi_streambuf destructor will auto flush
     }

     // restore stdio streambufs
     cin.rdbuf(cin_streambuf);
     cout.rdbuf(cout_streambuf);
     cerr.rdbuf(cerr_streambuf);

     return 0;
}

nginx.conf

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
  worker_connections 1024;
}

http {
  server {
    listen 80;
    server_name localhost;

    location / {
      fastcgi_pass   127.0.0.1:8000;

      fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
      fastcgi_param  SERVER_SOFTWARE    nginx;
      fastcgi_param  QUERY_STRING       $query_string;
      fastcgi_param  REQUEST_METHOD     $request_method;
      fastcgi_param  CONTENT_TYPE       $content_type;
      fastcgi_param  CONTENT_LENGTH     $content_length;
      fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
      fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
      fastcgi_param  REQUEST_URI        $request_uri;
      fastcgi_param  DOCUMENT_URI       $document_uri;
      fastcgi_param  DOCUMENT_ROOT      $document_root;
      fastcgi_param  SERVER_PROTOCOL    $server_protocol;
      fastcgi_param  REMOTE_ADDR        $remote_addr;
      fastcgi_param  REMOTE_PORT        $remote_port;
      fastcgi_param  SERVER_ADDR        $server_addr;
      fastcgi_param  SERVER_PORT        $server_port;
      fastcgi_param  SERVER_NAME        $server_name;
    }
  }
}

fastcgi.conf

#fastcgi.conf
fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx;
fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;
fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;
fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;

1 个答案:

答案 0 :(得分：1)

你能展示你的nginx.conf吗？

你的浏览器是chrome还是像chronium一样？