Go template.ExecuteTemplate html 数据

Question

index.html

：

<h1>{{.Title}}</h1>
<h2>{{.Greeting}}</h2>

main.go

：

var templatePath = "templates/"
var templates = template.Must(template.ParseGlob(templatePath + "*.html"))
var validPath = regexp.MustCompile("^/(fibonacci|home)/([a-zA-Z0-9]+)$")

type Index struct {
    Title    string
    Greeting string
}
func rootHandler(w http.ResponseWriter, r *http.Request) {
    greeting, _ := greetings.Greeting(r.URL.Query().Get("name"))
    result := Index{
        Title:    "GoLang RESTful API",
        Greeting: greeting,
    }
    e := templates.ExecuteTemplate(w, "index.html", result)
    if e != nil {
        //log.Fatal(e)
        http.Error(w, e.Error(), http.StatusInternalServerError)
    }
}

greetings.go

：

func init() {
    rand.Seed(time.Now().UnixNano())
}

// In Go, a function whose name starts with a capital letter can be called by a function not in the same package.
// This is known in Go as an exported name. For more about exported names, see Exported names in the Go tour.
func Greeting(name string) (string, error) {
    message := ""
    tz, _ := time.LoadLocation("Asia/Singapore")
    if name != "" {
        message = fmt.Sprintf("Hello %v! It is %s now.<br>%s</br>", name, time.Now().In(tz).Format("02-Jan-2006 15:04:05"), quote.Go())
    } else {
        message = fmt.Sprintf("Hello! It is %s now.<br>%s", time.Now().In(tz).Format("02-Jan-2006 15:04:05"), quote.Go())
    }
    return message, nil
}
func Greetings(names []string) (map[string]string, error) {
    if names == nil {
        return nil, errors.New("Invalid empty names!")
    }
    messages := make(map[string]string)
    for _, name := range names {
        message, err := Greeting(name)
        if err != nil {
            return nil, err
        }
        messages[name] = message
    }
    return messages, nil
}
func randomFormat() string {
    formats := []string{
        "Hi, %v. Welcome!",
        "Great to see you, %v!",
        "Hail, %v! Well met!",
    }
    return formats[rand.Intn(len(formats))]
}

浏览器中显示的输出是：

Hello Mickey! It is 17-Jan-2025 12:29:21 now.<br>Don't communicate by sharing memory, share memory by communicating.</br>

如何指示模板将

<br>

处理为换行符？

Answer 1

这是一个简单的修复。

type Index struct {
    Title    string
    Greeting template.HTML
}
func rootHandler(w http.ResponseWriter, r *http.Request) {
    greeting, _ := greetings.Greeting(r.URL.Query().Get("name"))
    result := Index{
        Title:    "GoLang RESTful API",
        Greeting: template.HTML(greeting),
    }
    e := templates.ExecuteTemplate(w, "index.html", result)
    if e != nil {
        //log.Fatal(e)
        http.Error(w, e.Error(), http.StatusInternalServerError)
    }
}