golang net\http包简单的使用

HTTP服务端：

package main

import (
	"fmt"
	"net/http"
)

func HandConn(w http.ResponseWriter, r *http.Request) {
	//用户请求方法
	fmt.Println(r.Method)
	//用户请求地址
	fmt.Println(r.URL)
	//请求头
	fmt.Println(r.Header)

	w.Write([]byte("hello go"))
}

func main() {
	//注册处理函数，用户连接自动调用指定的处理函数
	http.HandleFunc("/", HandConn)
	//监听http端口
	http.ListenAndServe(":8000", nil)
}

HTTP客户端

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
)

//httpget
func httpGet() {
	resp, err := http.Get("http://127.0.0.1:8000")
	if err != nil {
		fmt.Println("Get err=", err)
		return
	}

	defer resp.Body.Close()

	fmt.Println("stats=", resp.Status)
	fmt.Println("StatusCode=", resp.StatusCode)
	fmt.Println("Header=", resp.Header)

	buf := make([]byte, 1024*4)
	var temp string
	for {
		n, _ := resp.Body.Read(buf)
		if n == 0 {
			break
		}
		temp += string(buf[:n])
	}
	fmt.Println("Body=", temp)
}

//httppost
func httpPost() {
	user := Users{"user1", "aaa"}
	if bs, err := json.Marshal(user); err == nil {
		req := bytes.NewBuffer([]byte(bs))
		body_type := "application/json;charset=utf-8"
		resp, _ := http.Post("http://127.0.0.1:8000", body_type, req)
		body, _ := ioutil.ReadAll(resp.Body)
		fmt.Println(string(body))
		defer resp.Body.Close()
	}
}

type Users struct {
	Name string `json:"name"`
	ID   string `json:"id"`
}

func main() {
	httpGet()
	httpPost()
}