英文:
Inserting HTML to golang template
问题
我有一个使用golang的模板，其中有一个字符串看起来像这样：
<some_html> {{ .SomeOtherHTML }} </some_html>
我期望的输出应该是这样的：
<some_html> <the_other_html/> </some_html>
但实际上我看到的是这样的：
<some_html> &lt;the_other_html/&lt; </some_html>
我还尝试插入一些JSON，但是golang会转义字符并在不应该出现的地方添加"之类的东西。
如何在golang的HTML模板中插入内容而不会发生这种情况？
英文:
I have a template in golang where I have a string that looks something like this:
<some_html> {{ .SomeOtherHTML }} </some_html>
I'm expecting an output to be something like this:
<some_html> <the_other_html/> </some_html>
But instead I'm seeing something like this:
<some_html> &lt;the_other_html/&lt; </some_html>
I'm also trying to insert some JSON but golang is escaping characters and adding things like " in places they shouldn't be.
How do I insert into an HTML template in golang without this happening?
答案1
得分: 26
你应该将变量作为template.HTML而不是string传递：
tpl := template.Must(template.New("main").Parse(`{{define "T"}}{{.Html}}{{.String}}{{end}}`))
tplVars := map[string]interface{}{
"Html": template.HTML("<p>Paragraph</p>"),
"String": "<p>Paragraph</p>",
}
tpl.ExecuteTemplate(os.Stdout, "T", tplVars)
// 输出： <p>Paragraph</p><p>Paragraph</p>
如你所见，我们作为template.HTML传递的变量没有被转义，而作为string传递的变量则被转义了。
英文:
You should pass the variable as a template.HTML and not as a string:
tpl := template.Must(template.New("main").Parse(`{{define "T"}}{{.Html}}{{.String}}{{end}}`))
tplVars := map[string]interface{} {
"Html": template.HTML("<p>Paragraph</p>"),
"String": "<p>Paragraph</p>",
}
tpl.ExecuteTemplate(os.Stdout, "T", tplVars)
//OUTPUT: <p>Paragraph</p>&lt;p&gt;Paragraph&lt;/p&gt;
https://play.golang.org/p/QKKpQJ7gIs
As you can see, the variable we passed as a template.HTML is not escaped, but the one passed as a stringis.
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