英文:
Variables not working in included templates (html/template)
问题
模板"head"被插入到"index"模板中，并使用一个变量{{ .Title }}
Main.go:
package main
import (
"html/template"
"net/http"
"github.com/julienschmidt/httprouter"
)
var (
t = template.Must(template.ParseGlob("templates/*.tpl"))
)
type Page struct {
Title string
Desc string
}
func Index(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
index := Page{Title: "This is title", Desc: "Desc"}
t.ExecuteTemplate(w, "index", index)
}
func main() {
router := httprouter.New()
router.GET("/", Index)
http.ListenAndServe(":8080", router)
}
Index.tpl:
{{ define "index" }}
<!DOCTYPE html>
<html lang="en">
{{ template "head" }}
<body>
<h1>Main info:</h1>
Title: {{ .Title }}
Desc: {{ .Desc }}
</body>
</html>
{{ end }}
head.tpl:
{{ define "head" }}
<head>
<meta charset="UTF-8">
<title>{{ .Title }}</title>
</head>
{{ end }}
我得到了这个HTML：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<h1>Main info:</h1>
Title: This is title
Desc: Desc
</body>
</html>
变量{{ .Title }}在网页正文中起作用，但在头部不起作用。
英文:
The template "head" inserted on "index" template and use one variable {{ .Title }}
Main.go:
package main
import (
"html/template"
"net/http"
"github.com/julienschmidt/httprouter"
)
var (
t = template.Must(template.ParseGlob("templates/*.tpl"))
)
type Page struct {
Title string
Desc string
}
func Index(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
index := Page{Title: "This is title", Desc: "Desc"}
t.ExecuteTemplate(w, "index", index)
}
func main() {
router := httprouter.New()
router.GET("/", Index)
http.ListenAndServe(":8080", router)
}
Index.tpl:
{{ define "index" }}
<!DOCTYPE html>
<html lang="en">
{{ template "head" }}
<body>
<h1>Main info:</h1>
Title: {{ .Title }}
Desc: {{ .Desc }}
</body>
</html>
{{ end }}
head.tpl:
{{ define "head" }}
<head>
<meta charset="UTF-8">
<title>{{ .Title }}</title>
</head>
{{ end }}
I get this html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<h1>Main info:</h1>
Title: This is title
Desc: Desc
</body>
</html>
Variable {{ .Title }} works on site body, but doesn't work in head.
答案1
得分: 5
你必须将变量传递给模板：
{{ template "head" . }}
英文:
You have to pass the variables to the template:
{{ template "head" . }}
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