Go语言中的HTML渲染结构和数组

Question

I render template:

w.Header().Set("Content-type", "text/html")
t, _ := template.ParseFiles("index.html")
t.Execute(w, &page{Title: "Title"})

Its works well. But what if, for example, I have structure from database?

How can I render it by Go? Any solutions?

Answer 1

It works no differently. ExecuteTemplate accepts an interface{} so you can pass it anything you'd like.

I typically pass a map[string]interface{} like so:

// Shorthand
type M map[string]interface{}

...

err := t.ExecuteTemplate(w, "posts.tmpl", M{
        "posts": &posts,
        "user": &user,
        "errors": []pageErrors,
 }

 // posts.tmpl

 {{ posts.PostTitle }} 
 {{ with user }}
      Hello, {{ Name }}!
      {{ Email }}
 {{ end }}
 ...

Hope that clarifies. The Go docs have a useful example that includes how to use the html/template package.