一、form截取登陆信息

package main

import (
	"fmt"
	"html/template"
	"log"
	"net/http"
	"net/url"
	"strings"
)
//定义一个函数
func Hello(w http.ResponseWriter,r *http.Request)  {
	//解析url传递的参数，post请求则解析响应包的主体
	r.ParseForm()
	//获取表单数据
	fmt.Println(r.Form)
	//获取url的路径
	fmt.Println("path",r.URL.Path)
	fmt.Println("scheme",r.URL.Scheme)
	fmt.Println(r.Form["url_long"])
	v := url.Values{}
	v.Set("name","Tom")
	v.Add("friend","Jess")
	v.Add("friend","Zoe")
	fmt.Println(v.Get("name"))
	fmt.Println(v.Get("friend"))
	fmt.Println(v["friend"])
	for key, value := range r.Form {
		fmt.Println("key:",key)
		fmt.Println("val:",strings.Join(value,""))
	}
	fmt.Fprintf(w,"Hello my route")
}
func login(w http.ResponseWriter,r *http.Request)  {
	//获取请求方法
	fmt.Println("method:",r.Method)
	r.ParseForm()
	if r.Method == "GET" {
		files, err := template.ParseFiles("D:/goproject/src/webDemo/http/form/login.html")
		if err != nil {
			panic(err)
		}
		files.Execute(w,nil)
	}else {
		//请求登录数据
		fmt.Println("username:",r.Form["username"])
		fmt.Println("password",r.Form["password"])
	}
}
func main() {
    //设置访问路由
    http.HandleFunc("/hello",Hello)
	//设置访问路由
	http.HandleFunc("/login",login)
    //设置监听的端口
	err := http.ListenAndServe(":8080", nil)
	if err != nil {
		log.Fatal("ListenAndServe:",err)
	}
}

二、登陆页面

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录界面</title>
</head>
<body>
<form action="http://127.0.0.1:8080/login" method="post">
    用户名:<input type="text" name="username"><br>
    密&nbsp&nbsp&nbsp码:<input type="password" name="password"><br>
    <input type="submit" value="登陆">
</form>
</body>
</html>