//tmpl示列
package main
import (
"fmt"
"net/http"
"html/template"
)
type Ren struct {
name string
Age int
Addr string
Height float64
Weight float64
Elect_result bool
}
func nameless (w http.ResponseWriter, r *http.Request) {
//解析模板
//s.tmpl是当前路径中的文件，内容是html。
//z是数据。err接收错误信息
z,err := template.ParseFiles("./s.tmpl")
if err != nil {
fmt.Printf("tmpl error: %v \n",err )
return
}
user := Ren{
name: "tom",
Age: 20,
Addr: "北京",
Height: 178.5,
Weight: 143.5,
Elect_result: true,
}
user02 := map[string]interface{}{
"name": "xiao fei",
"age": "27",
"addr": "shang hai",
}
qiul := []string{
"篮球",
"足球",
"兵乓球",
}
//渲染模板
//以map嵌套方式传入多个渲染参数
err = z.Execute(w, map[string]interface{}{
"user": user,
"user02": user02,
"qiul": qiul,
})
if err != nil {
fmt.Printf("z, lr error: %v \n", err)
return
}
fmt.Printf("name: %v \n",user.name)
}
func main () {
//执行路由函数
http.HandleFunc("/", nameless)
err := http.ListenAndServe(":3000",nil)
if err != nil {
fmt.Printf("http start fail,error: %v", err)
return
}
}
s.tmpl
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>go</title>
</head>
<body>
<div>
<h2>自我介绍</h2>
<hr \>
<p>我叫{{.user02.name}},今年{{ .user02.age }}岁,来自{{ .user02.addr }}</p>
<p>我的身高和体重分别是{{ .user.Height }},{{ .user.Weight }},结果为{{ .user.Elect_result }}</p>
<hr \>
</div>
<hr \>
<div>
<h2>if</h2>
{{ $num := 20 }}
{{ $age := .user.Age }}
{{ if gt $num 20 }}
<p> >20 </p>
{{ else }}
<p> test </p>
{{ end }}
{{if gt $age 20}}
<p>$age</p>
{{else}}
<p>test</p>
{{end}}
</div>
<hr \>
<h2>for</h2>
<div>
{{range $i,$v := .qiul}}
<p>{{$i}} *** {{$v}}</p>
{{else}}
空值
{{end}}
</div>
</body>
</html>
//tmpl自定义函数示列
package main
import (
"fmt"
"net/http"
"html/template"
)
func nameless (w http.ResponseWriter, r *http.Request) {
//自定义tmpl使用函数
f := func(v string)(string,error){
return v+"--xx", nil
}
//New对象和之前方式效果一样
z := template.New("s.tmpl")
//注册自定义函数
z.Funcs(template.FuncMap{
"fs": f,
})
_,err := z.ParseFiles("./s.tmpl")
if err != nil {
fmt.Printf("tmpl error: %v \n",err )
return
}
err = z.Execute(w, "alixls")
if err != nil {
fmt.Printf("z, lr error: %v \n", err)
return
}
}
func main () {
http.HandleFunc("/", nameless)
err := http.ListenAndServe(":3000",nil)
if err != nil {
fmt.Printf("http start fail,error: %v", err)
return
}
}
x.tmpl
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>go</title>
</head>
<body>
<div>
<p>{{fs .}}</p>
</div>
</body>
</html>
