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))
}