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 mainimport ("archive/zip""bytes""flag""fmt""io""io/ioutil""log""os""path/filepath""golang.org/x/text/encoding/simplifiedchinese""golang.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 stringfor _, f := range zipReader.File {if f.Flags == 0 {i := bytes.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 stringdst string)func usage() {fmt.Fprintf(os.Stderr, `gounzip version: gounzip/1.0Usage: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 = usageflag.Parse()}func main() {err := unzip(src, dst)if err != nil {log.Println(err)}}

编译后放到bin目录下

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这里命令行，简单实用了flag，可以用cobra库来替代，优化命令行