英文:
CSS and images from a different folder are not read when rendering template using Golang
问题
我正在尝试使用Golang的html/template模块渲染模板。但是只有与我正在渲染的页面位于同一文件夹中的CSS文件和图像会被执行，位于不同文件夹中的文件会被忽略。以下是我的代码：
func render(w http.ResponseWriter, filename string, data interface{}) {
tmpl, err := template.ParseFiles(filename)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
例如，对于这个页面：
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Start Connect</title>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<link href="one-page.css" rel="stylesheet">
</head>
one-page.css会被执行，但bootstrap不会被执行。
英文:
I am trying to render a template using the html/template module of Golang. But only CSS files and images from the same folder as the page i am rendering are executed, those located in a different folder are ignored. Here is my code:
func render(w http.ResponseWriter, filename string, data interface{}) {
tmpl, err := template.ParseFiles(filename)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
For this page for example:
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Start Connect</title>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<link href="one-page.css" rel="stylesheet">
</head>
The one-page.css is executed but not the bootstrap.
答案1
得分: 2
在Web上使用../css应该避免，很可能是你的错误来源。你的Go服务器很可能无法解析该文件（因为你没有处理../css URI的处理程序）。
所以你应该将../css部分改为/css，并告诉你的服务器（你没有提供详细信息，所以我无法给你展示代码）通过提供文件来处理/css URI。
假设你正在使用默认的net/http mux，你的代码应该类似于：
mux := http.NewServeMux()
mux.Handle("/css/", http.StripPrefix("/css/", http.FileServer(http.Dir("css"))))
http.ListenAndServe(":8080", mux)
英文:
Using ../css on the web should be avoided and likely is your error source. Your go server likely cannot resolve the file (because you don't have a handler for the ../css URI).
So you should change the ../css part to /css and tell your server (you didn't provide details, so I cannot show you code) to handle /css URIs by serving the files.
Assuming that you are using the default net/http mux, your code should look something like:
mux := http.NewServeMux()
mux.Handle("/css/", http.StripPrefix("/css/", http.FileServer(http.Dir("css"))))
http.ListenAndServe(":8080", mux)
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