第三方路由器和静态文件 [英] Third-party router and static files

问题描述

我在Google App Engine上使用第三方路由器（ httprouter ），并希望从根服务器提供静态文件。

由于App Engine，我需要将第三方路由器连接到 DefaultServeMux on / ：

  router：= httprouter.New（）
 
 //不起作用，重复/。 
 http.Handle（/，http.FileServer（http.Dir（public）））
 
 //因App Engine需要。 
 http.Handle（/，router）
  

问题是这个重复 / 使用多次注册/ 的模式和恐慌

如何为文件提供服务，尤其是 index.html 从根目录并使用第三方路由器？ >解决方案

如果您在 / 处提供静态文件，那么您不能按照 https://github.com/julienschmidt/httprouter/issues/7#issuecomment-45725482

您无法在根目录中注册全部捕获以提供文件服务，同时也在子路径中注册其他处理程序。
另请参阅 https://github.com/julienschmidt/httprouter#named-参数

您应该使用Go在应用程序根目录和静态文件（CSS，JS等）上提供模板，在一个子路径中：

  router：= httprouter.New（）
 
 router.GET（ /，IndexHandler）
 //直接从httprouter文档中删除
 router.ServeFiles（/ static / * filepath，http.Dir（/ srv / www / public /））
 
 http.Handle（/，路由器）
  

I'm using a third-party router (httprouter) on Google App Engine and would like to serve static files from root.

Because of App Engine, I need to attach the third-party router to the DefaultServeMux on /:

router := httprouter.New()

// Doesn't work, duplicated "/".
http.Handle("/", http.FileServer(http.Dir("public")))

// Needed because of App Engine.
http.Handle("/", router)

The problem is this duplicates the / pattern and panics with "multiple registrations for /"

How can I serve files, especially index.html from root and use a third-party router?

解决方案

If you serve static files at / then you can't serve any other paths as per https://github.com/julienschmidt/httprouter/issues/7#issuecomment-45725482

You can't register a "catch all" at the root dir for serving files while also registering other handlers at sub-paths. See also the note at https://github.com/julienschmidt/httprouter#named-parameters

You should use Go to serve a template at the application root and static files (CSS, JS, etc) at a sub path:

router := httprouter.New()

router.GET("/", IndexHandler)
// Ripped straight from the httprouter docs
router.ServeFiles("/static/*filepath", http.Dir("/srv/www/public/"))

http.Handle("/", router)

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