我正在尝试处理一个简单的html表单.但是,我无法在提交后收到任何信息. r.Form映射始终为[].不知道我在哪里错了.
提前致谢.
这是代码http://play.golang.org/p/aZxPCcRAVV
package main
import (
"html/template"
"log"
"net/http"
)
func rootHandler(w http.ResponseWriter,r *http.Request) {
t,_ := template.New("form.html").Parse(form)
t.Execute(w,"")
}
func formHandler(w http.ResponseWriter,r *http.Request) {
log.Println(r.Form)
rootHandler(w,r)
}
func main() {
http.HandleFunc("/",rootHandler)
http.HandleFunc("/login",formHandler)
http.ListenAndServe("127.0.0.1:9999",nil)
}
var form = `
<h1>Login</h1>
<form action="/login" method="POST">
<div><input name="username" type="text"></div>
<div><input type="submit" value="Save"></div>
</form>
`
解决方法
看来你需要先调用ParseForm.从go文档
// Form contains the parsed form data,including both the URL // field's query parameters and the POST or PUT form data. // This field is only available after ParseForm is called. // The HTTP client ignores Form and uses Body instead. Form url.Values
和一些代码让你的例子工作.
func formHandler(w http.ResponseWriter,r *http.Request) {
err := r.ParseForm()
if err != nil {
//handle error http.Error() for example
return
}
log.Println(r.Form)
rootHandler(w,r)
}
