GoStudy/MyForm/main.go

package main

import (
	"fmt"
	"html/template"
	"log"
	"net/http"
	"strings"
)

func sayHelloName(w http.ResponseWriter, r *http.Request) {
	err := r.ParseForm()
	if err != nil {
		return
	}
	fmt.Println(r.Form)
	fmt.Println("path", r.URL.Path)
	fmt.Println("scheme", r.URL.Scheme)
	fmt.Println(r.Form["url_long"])
	for k, v := range r.Form {
		fmt.Println("key: ", k)
		fmt.Println("val: ", strings.Join(v, ""))
	}
	_, err = fmt.Fprintf(w, "hello astaxie!")
	if err != nil {
		return
	}
}

func login(w http.ResponseWriter, r *http.Request) {
	err := r.ParseForm()
	if err != nil {
		return
	}
	fmt.Println("method:", r.Method) //获取请求的方法
	if r.Method == "GET" {
		t, _ := template.ParseFiles("login.gtpl")
		err := t.Execute(w, nil)
		if err != nil {
			return
		}
	} else {
		//请求的是登陆数据，那么执行登陆的逻辑判断
		fmt.Println("username:", r.Form["username"][0])
		fmt.Println("password:", r.Form["password"][0])
		fmt.Println("age:", r.Form["age"][0])
		if len(r.Form["username"][0]) == 0 {
			//为空的处理
			fmt.Println("username is empty!!!")
		}
		//getint, err := strconv.Atoi()(r.Form.Get("age"))
		if err != nil {
			fmt.Println("this is an error")
		}
		//if getint > 100 {
		//	fmt.Println("too old")
		//}
	}
}

func main() {
	http.HandleFunc("/", sayHelloName)
	http.HandleFunc("/login", login)
	fmt.Println("http://127.0.0.1:9090")
	fmt.Println("http://127.0.0.1:9090/login")
	err := http.ListenAndServe(":9090", nil)
	if err != nil {
		log.Fatal("ListenAddServer: ", err)
	}
}