golang 实现文件接收与上传

文件服务server.go

package main

import (
	"io"
	"net/http"
	"os"
)

func uploadHandler(w http.ResponseWriter, r *http.Request) {
	file, err := os.Create("./newFile")
	if err != nil {
		panic(err)
	}
	_, err = io.Copy(file, r.Body)
	if err != nil {
		panic(err)
	}
	w.Write([]byte("upload success"))
}

func main() {
	http.HandleFunc("/upload", uploadHandler)
	http.ListenAndServe(":5050", nil)
}

文件传送client.go

package main

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

func main() {
	file, err := os.Open("./a.txt")
	if err != nil {
		panic(err)
	}
	defer file.Close()

	res, err := http.Post("http://127.0.0.1:5050/upload", "binary/octet-stream", file)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()
	message, _ := ioutil.ReadAll(res.Body)
	fmt.Printf(string(message))
}