Fastcgi ++：如何创建404或503响应

问题描述

Fastcgi ++是一个库，用于缓解C ++中fastcgi服务器的实现。这里是非常简单的用例，我想做：检查一个文件的存在，如果不存在，生成一些错误消息。这里是代码，寻找问题的迹象。

  struct the_fastcgi_server_t：Fastcgipp :: Request< char> 
 {
 
 bool response（）
 {
使用命名空间Fastcgipp; 
 
 Fastcgipp :: Http :: Environment< char> const& env = 
 this-> environment（）; 
 //我可以解析文件吗？ 
 std :: string target_js; 
 try {
 target_js = path_processor（env.scriptName）; 
} catch（file_not_found_exc_t const& e）
 {
 // TODO如何在这里设置标准404？ 
 return true; 
} 
 
 out<< Content-Type：text / javascript; charset = utf-8 \r\\\
\r\\\
; 
 
 // ...这里我填写响应。 
 
 return true; 
} 
};关于如何设置响应类型的任何想法？
 =h2_lin>解决方案
答案基本上如下：
 
 
 
  
 
 
 
也就是说，使用像这样的代码片段
  out< 状态：404未找到\r\\\
\r\\\
; 
  
。它不是标准的http，但FastCGI只是一个包装CGI，这就是如何CGI。 
 
Fastcgi++ is a library for easing the implementation of fastcgi servers in C++. And here is the very simple use case that I want to do: to check for the existence of a file, and if doesn't exist, to generate some error message. Here is the code, look for the question signs.
struct the_fastcgi_server_t: Fastcgipp::Request<char>
{

    bool response() 
    {
        using namespace Fastcgipp;

        Fastcgipp::Http::Environment<char> const &env =
            this->environment();
        // Can I resolve the file?
        std::string target_js;
        try {
            target_js = path_processor( env.scriptName );
        } catch ( file_not_found_exc_t const& e )
        {
            // TODO How do I set a standard 404 here???!!
            return true;
        }

        out << "Content-Type: text/javascript; charset=utf-8\r\n\r\n";

        // ... Here I fill the response.

        return true;
    }
};
Any ideas about how to set the response type?
 解决方案 
The answer is basically as here:
http://www.fastcgi.com/docs/faq.html#httpstatus
That is, use a fragment of code like this one
 out << "Status: 404 Not found\r\n\r\n";
in the response method. It is not standard http, but FastCGI is just a wrapper over CGI, and that's how CGI does it. 
                        
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