用服务器自带的unzip命令解压zip包时，经常遇到编码问题，所以用Go写一个zip解压 脚本 来处理zip包

代码如下：

 package main

import (
	"archive/zip"
	"bytes"
	"flag"
	"fmt"
	" io "
	"io/ioutil"
	"log"
	"os"
	"path/filepath"

	"golang.org/x/text/encoding/simplifiedchinese"
	" go lang.org/x/text/transform"
)

func unzip(zipFile string, destDir string) error {
	zipReader, err := zip.OpenReader(zipFile)
	if err != nil {
		return err
	}
	defer zipReader. Close ()
	var decodeName string
	for _, f := range zipReader.File {
		if f. Flags  == 0 {
			i :=  byte s.NewReader([]byte(f.Name))
			decoder := transform.NewReader(i, simplifiedchinese.GB18030.NewDecoder())
			content, _ := ioutil.ReadAll(decoder)
			decodeName = string(content)
		} else {
			decodeName = f.Name
		}

		fpath := filepath.Join(destDir, decodeName)
		if f.FileInfo().IsDir() {
			os.MkdirAll(fpath, os.ModePerm)
		} else {
			if err = os.MkdirAll(filepath.Dir(fpath), os.ModePerm); err != nil {
				return err
			}

			inFile, err := f.Open()
			if err != nil {
				return err
			}
			defer inFile.Close()

			outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
			if err != nil {
				return err
			}
			defer outFile.Close()

			_, err = io.Copy(outFile, inFile)
			if err != nil {
				return err
			}
		}
	}
	return nil
}

var (
	src string
	dst string
)

func usage() {
	fmt.Fprintf(os.Stderr, `gounzip version: gounzip/1.0
Usage:
gounzip --src='/mnt/a.zip' --dst='/ tmp '
gounzip --src '/mnt/a.zip' --dst '/tmp'
gounzip -src='/mnt/a.zip' -dst='/tmp'
gounzip -src '/mnt/a.zip' -dst '/tmp'

Options:
`)
	flag.PrintDefaults()
}
func init() {
	flag.StringVar(&src, "src", "", "zip file ")
	flag.StringVar(&dst, "dst", "/tmp", "unzip dir")
	flag.Usage = usage
	flag.Parse()
}

func main() {
	err := unzip(src, dst)
	if err != nil {
		log.Println(err)
	}
}
  

编译后放到bin目录下

查看帮助：

这里命令行，简单实用了flag，可以用cobra库来替代，优化命令行