GoLang中的HTML部分 [英] HTML Partials in GoLang
问题描述
我刚开始使用Go，我想用它创建一个Web应用程序.我现在要尝试的是使用类似handlebarsjs的方式使用模板.我想将页眉和页脚从主页上拉出来，以便可以将它们插入每个网页中.
I am just getting started with Go, and I want to create a web app with it. What I am trying now is to use the templating in a handlebarsjs-esque manner. I want to pull my header and footer out of my main page so I can inject them on every webpage.
我当前的设置应该解析主页，页眉和页脚HTML文件并缓存它们.然后，我执行home.html模板，该模板具有用于页面Title，header.html文件和footer.html文件的字段.
My current set up is supposed to parse the homepage, header, and footer HTML files and cache them. Then I execute my home.html template, which has fields for the pages Title, the header.html file, and the footer.html file.
每当我搜索相似的页面时，我只会看到javascript页面，因此，如果这是转贴，请告诉我在哪里查找.
Whenever I search for similar pages I just see javascript pages, so if this is a repost, let me know where to look.
修改:
我已经更新了代码，以从@Minty和@putu的答案中获取提示.我正在尝试读取html文件并将其存储在数据映射中，同时还将模板define添加到我的模板中.我正在处理一些新的错误，因此该网站目前无法渲染.但是，如果您可以提供任何新的提示，那将会有很大帮助.
edit:
I have updated my code to take tips from the answers by @Minty and @putu. I am trying to read the html files and store them in a data map, while also adding the template define to my templates. There are some new bugs that I am working on squashing, so the site does not render currently. But, if there are any new tips you can give, that would help a lot.
server.go
server.go
package main
import (
"html/template"
"io/ioutil"
"net/http"
"regexp"
)
var tPath = "./temps/"
var dPath = "./data/"
var templates = template.Must(template.ParseFiles(tPath+"home.html", dPath+"header.html", dPath+"footer.html"))
var validPath = regexp.MustCompile("^/")
func rootHandler(wr http.ResponseWriter, req *http.Request) {
title := "home"
headerFile, headErr := ioutil.ReadFile(dPath + "header.html")
footerFile, footErr := ioutil.ReadFile(dPath + "footer.html")
if headErr != nil || footErr != nil {
http.Error(wr, headErr.Error(), http.StatusInternalServerError)
http.Error(wr, footErr.Error(), http.StatusInternalServerError)
}
data := map[string]interface{}{
"Title": title,
"Header": string(headerFile),
"Footer": string(footerFile),
}
err := templates.ExecuteTemplate(wr, title+".html", data)
if err != nil {
http.Error(wr, err.Error(), http.StatusInternalServerError)
}
}
func main() {
http.HandleFunc("/", rootHandler)
http.ListenAndServe(":8080", nil)
}
home.html:
home.html:
{{define "homeHTML"}}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>{{.Title}} - MySite</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
{{.Header}}
<h1>Welcome!</h1>
{{.Footer}}
</body>
</html>
{{end}}
Header.html:
Header.html:
{{define "headerHTML"}}
<header>
<h1>MySite</h1>
<br>
<nav>
<a href="/">Home</a>
</nav>
</header>
{{end}}
Footer.html
Footer.html
{{define "footerHTML"}}
<footer>
<p>Thank You for Visiting</p>
</footer>
{{end}}
推荐答案
这是完整的示例.
// home.html inside temps folder
{{define "homeHTML"}}
{{template "headHTML" .}}
{{template "headerHTML" .}}
{{template "footerHTML" .}}
{{end}}
// head.html inside data folder
{{define "headHTML"}}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>{{.title}} - MySite</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
{{end}}
// header.html inside data folder
{{define "headerHTML"}}
<header>
{{.header}}
<h1>Welcome to my site!</h1>
<br>
<nav>
<a href="/">Home</a>
</nav>
</header>
{{end}}
// footer.html inside data folder
{{define "footerHTML"}}
<h1>Welcome! {{.footer}}</h1>
<footer>
<p>Thank You for Visiting</p>
</footer>
</body>
</html>
{{end}}
代码将是这样
package main
import (
"html/template"
"io/ioutil"
"net/http"
"path/filepath"
"strings"
)
var tPath = "./temps/"
var dPath = "./data/"
var templateDirs = []string{"temps", "data"}
var templates *template.Template
func getTemplates() (templates *template.Template, err error) {
var allFiles []string
for _, dir := range templateDirs {
files2, _ := ioutil.ReadDir(dir)
for _, file := range files2 {
filename := file.Name()
if strings.HasSuffix(filename, ".html") {
filePath := filepath.Join(dir, filename)
allFiles = append(allFiles, filePath)
}
}
}
templates, err = template.New("").ParseFiles(allFiles...)
return
}
func init() {
templates, _ = getTemplates()
}
func rootHandler(wr http.ResponseWriter, req *http.Request) {
title := "home"
data := map[string]interface{}{
"title": title,
"header": "My Header",
"footer": "My Footer",
}
err := templates.ExecuteTemplate(wr, "homeHTML", data)
if err != nil {
http.Error(wr, err.Error(), http.StatusInternalServerError)
}
}
func main() {
http.HandleFunc("/", rootHandler)
http.ListenAndServe(":8080", nil)
}
这篇关于GoLang中的HTML部分的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
