[网络协议]go学习 --- web的post数据

一、post

1、server

package main

import (
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"net/http"
)

func main()  {
	//创建路由
	server := http.NewServeMux()
	server.HandleFunc("/login",login)
	http.ListenAndServe(":2001",server)
}
func login(w http.ResponseWriter,r *http.Request)  {
	r.ParseForm()
	bytes, err := ioutil.ReadAll(r.Body)
	if err != nil {
		log.Fatal(err)
	}
	r.Body.Close()
	fmt.Println("Body:",string(bytes))
	fmt.Printf("r=%+v\n",r)
	fmt.Printf("r.Header=%+v\n",r.Header)
	fmt.Printf("Content-Type=%+v\n",r.Header["Content-Type"])
	fmt.Printf("r.Cookies()=%+v\n",r.Cookies())
	if len(r.Form["username"]) > 0 {
		username := r.Form["username"][0]
		fmt.Println("username:",username)
	}
	if len(r.Form["password"]) > 0 {
		password := r.Form["password"][0]
		fmt.Println("password",password)
	}
	io.WriteString(w,"登录成功")
}

2、cilent

package main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"net/url"
)

func main() {
//自己搭建服务器
str := "http://127.0.0.1:2001/login"
param := url.Values{
	"username" : {"大笨蛋"},
	"password" : {"123456789@qq.com"},
}
	bufferString := bytes.NewBufferString(param.Encode())
	resp, err := http.Post(str, "application/x-www.form-urlencoded", bufferString)
	if err != nil {
		log.Fatal(err)
	}
	//关闭链接
	defer resp.Body.Close()
	if resp.StatusCode == 200 {
		all, err := ioutil.ReadAll(resp.Body)
		if err != nil {
			log.Fatal(err)
		}
		fmt.Println(string(all))
	}
	fmt.Println("respone",resp)
	fmt.Println("respone.Header",resp.Header)
	fmt.Println("responre.Cookies",resp.Cookies())

}