压缩文件和解压文件
壓縮文件:
復制代碼代碼如下: package mainimport (
??? "fmt"
??? "os"
??? "io"
??? "archive/tar"
??? "compress/gzip"
)
func main() {
??? // file write
??? fw, err := os.Create("tar/lin_golang_src.tar.gz")
??? if err != nil {
??????? panic(err)
??? }
??? defer fw.Close()
??? // gzip write
??? gw := gzip.NewWriter(fw)
??? defer gw.Close()
??? // tar write
??? tw := tar.NewWriter(gw)
??? defer tw.Close()
??? // 打開文件夾
??? dir, err := os.Open("file/")
??? if err != nil {
??????? panic(nil)
??? }
??? defer dir.Close()
??? // 讀取文件列表
??? fis, err := dir.Readdir(0)
??? if err != nil {
??????? panic(err)
??? }
??? // 遍歷文件列表
??? for _, fi := range fis {
??????? // 逃過文件夾, 我這里就不遞歸了
??????? if fi.IsDir() {
??????????? continue
??????? }
??????? // 打印文件名稱
??????? fmt.Println(fi.Name())
??????? // 打開文件
??????? fr, err := os.Open(dir.Name() + "/" + fi.Name())
??????? if err != nil {
??????????? panic(err)
??????? }
??????? defer fr.Close()
??????? // 信息頭
??????? h := new(tar.Header)
??????? h.Name = fi.Name()
??????? h.Size = fi.Size()
??????? h.Mode = int64(fi.Mode())
??????? h.ModTime = fi.ModTime()
??????? // 寫信息頭
??????? err = tw.WriteHeader(h)
??????? if err != nil {
??????????? panic(err)
??????? }
??????? // 寫文件
??????? _, err = io.Copy(tw, fr)
??????? if err != nil {
??????????? panic(err)
??????? }
??? }
??? fmt.Println("tar.gz ok")
}
?
解壓文件:
復制代碼代碼如下: package mainimport (
??? "fmt"
??? "os"
??? "io"
??? // "time"
??? "archive/tar"
??? "compress/gzip"
)
func main() {
??? // file read
??? fr, err := os.Open("tar/lin_golang_src.tar.gz")
??? if err != nil {
??????? panic(err)
??? }
??? defer fr.Close()
??? // gzip read
??? gr, err := gzip.NewReader(fr)
??? if err != nil {
??????? panic(err)
??? }
??? defer gr.Close()
??? // tar read
??? tr := tar.NewReader(gr)
??? // 讀取文件
??? for {
??????? h, err := tr.Next()
??????? if err == io.EOF {
??????????? break
??????? }
??????? if err != nil {
??????????? panic(err)
??????? }
??????? // 顯示文件
??????? fmt.Println(h.Name)
??????? // 打開文件
??????? fw, err := os.OpenFile("file2/" + h.Name, os.O_CREATE | os.O_WRONLY, 0644/*os.FileMode(h.Mode)*/)
??????? if err != nil {
??????????? panic(err)
??????? }
??????? defer fw.Close()
??????? // 寫文件
??????? _, err = io.Copy(fw, tr)
??????? if err != nil {
??????????? panic(err)
??????? }
??? }
??? fmt.Println("un tar.gz ok")
}
轉載于:https://www.cnblogs.com/craneboos/p/8440426.html
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