Golang创建动态函数（在运行期间）

问题描述：

I need some help developing a web server in go. I took initial code from http://golang.org/doc/articles/wiki/ , in particular, this example :

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hi there, I love %s!", r.URL.Path[1:])
}

func main() {
    http.HandleFunc("/", handler)
    http.ListenAndServe(":8080", nil)
}

This code is pretty simple to follow as all it does is redirect a get request going to "localhost" to the handler function which outputs html.

The problem I am having is that with my server I will be using javascript linkage in my pages (particularly JQ, and images, etc). So when a GET request comes in for those artifacts I need to pull them from the drive as bytes and give them to the client browser in the handler (like above).

However; before run time I have no idea which files are located in local folders so I cannot pre-make these handlers. I was wondering if go had a way to dynamically make functions during run time. So the psuedocode I'm thinking of would go something like this:

for file in files:
    http.HandleFunc(file.location, handler)

If maybe I'm going about this the wrong way and if anyone has ideas on creating handlers for these local files after reading them please let me know. I also do not have any idea of the amount of files or how many but I can use Golang to read all the files.

Thanks!

我需要一些帮助来开发Web服务器。我从 http://golang.org/doc/articles/wiki/ 中获取了初始代码，特别是这个示例： p>

  func handler（w http.ResponseWriter，r * http.Request）{
 fmt.Fprintf（w，“嗨，我爱％  s！“，r.URL.Path [1：]）
} 
 
func main（）{
 http.HandleFunc（” /“，handler）
 http.ListenAndServe（”：8080“，nil）  
} 
  code>  pre> 
 
 此代码非常简单，因为它所做的只是将获取请求重定向到“ localhost”到输出html的处理函数。  / p> 
 
 
我遇到的问题是，在服务器上，我将在页面中使用javascript链接（尤其是JQ和图像等）。 因此，当收到针对这些工件的GET请求时，我需要将它们作为字节从驱动器中拉出，并将它们提供给处理程序中的客户端浏览器（如上）。 p> 
 
 
   ; 在运行时之前，我不知道哪些文件位于本地文件夹中，因此无法预先制作这些处理程序。 我想知道go是否有办法在运行时动态创建函数。 strong>所以我正在考虑的伪代码会像这样： p> 
 
 
 用于文件 在文件中：
 http.HandleFunc（file.location，handler）
  code>  pre> 
 
 如果我可能会以错误的方式进行操作，并且有人对创建 阅读这些本地文件的处理程序后，请告诉我。 我也不知道文件的数量或多少，但是我可以使用Golang读取所有文件。 p> 
 
 
谢谢！ p> 
  div>

答

as @Not_a_Golfer stated ; this can be done with FileServer for static files. In my situation this works quite well as I have numerous unknown files.

Golang创建动态函数（在运行期间）

相关推荐