main.go:
package main
import (
"html/template"
"log"
"net/http"
)
func main() {
t, err := template.ParseFiles("template.html")
if err != nil {
log.Fatalf("Could not parse template: %v", err)
}
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
t.ExecuteTemplate(w, "index", nil)
})
http.HandleFunc("/blog", func(w http.ResponseWriter, r *http.Request) {
t.ExecuteTemplate(w, "blog", nil)
})
if err := http.ListenAndServe(":8080", nil); err != nil {
log.Fatalf("Error starting HTTP server: %v", err)
}
}template.html:
{{define "header"}}
<html>
<head>
<title>Template example</title>
</head>
<body>
{{end}}
{{define "footer"}}
</body>
</html>
{{end}}
{{define "index"}}
{{template "header"}}
<h1>Index</h1>
<p>Home page. <a href="/blog">Go to blog</a>.</p>
{{template "footer"}}
{{end}}
{{define "blog"}}
{{template "header"}}
<h1>Blog</h1>
<p><a href="/">Go to home page</a>.</p>
<ul>
<li>Post 3</li>
<li>Post 2</li>
<li>Post 1</li>
</ul>
{{template "footer"}}
{{end}}
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