Java實作zip檔案壓縮（單個檔案、檔案夾以及檔案和檔案夾的組合壓縮）

2016年10月04日 23:22:24 ljheee 閱讀數：13215 标簽： 壓縮javazip 更多

個人分類： Java應用

版權聲明：本文為部落客原創文章，未經部落客允許不得轉載。 https://blog.csdn.net/ljheee/article/details/52736035

Java實作zip檔案壓縮（單個檔案、檔案夾以及檔案和檔案夾的組合壓縮）

1. package com.ljheee.ziptool.core;

2. import java.io.File;

3. import java.io.FileInputStream;

4. import java.io.FileOutputStream;

5. import java.io.IOException;

6. import java.util.zip.ZipEntry;

7. import java.util.zip.ZipOutputStream;

9. public class CompactAlgorithm {

11. File targetFile;

12. public CompactAlgorithm() {}

13. public CompactAlgorithm(File target) {

14. targetFile = target;

15. if (targetFile.exists())

16. targetFile.delete();

17. }

19. public void zipFiles(File srcfile) {

20. ZipOutputStream out = null;

21. try {

22. out = new ZipOutputStream(new FileOutputStream(targetFile));

23. if(srcfile.isFile()){

24. zipFile(srcfile, out, "");

25. } else{

26. File[] list = srcfile.listFiles();

27. for (int i = 0; i < list.length; i++) {

28. compress(list[i], out, "");

29. }

30. }

31. System.out.println("壓縮完畢");

32. } catch (Exception e) {

33. e.printStackTrace();

34. } finally {

35. try {

36. if (out != null)

37. out.close();

38. } catch (IOException e) {

39. e.printStackTrace();

40. }

41. }

42. }

44. private void compress(File file, ZipOutputStream out, String basedir) {

46. if (file.isDirectory()) {

47. this.zipDirectory(file, out, basedir);

48. } else {

49. this.zipFile(file, out, basedir);

50. }

51. }

53. public void zipFile(File srcfile, ZipOutputStream out, String basedir) {

54. if (!srcfile.exists())

55. return;

56. byte[] buf = new byte[1024];

57. FileInputStream in = null;

58. try {

59. int len;

60. in = new FileInputStream(srcfile);

61. out.putNextEntry(new ZipEntry(basedir + srcfile.getName()));

62. while ((len = in.read(buf)) > 0) {

63. out.write(buf, 0, len);

64. }

65. } catch (Exception e) {

66. e.printStackTrace();

67. } finally {

68. try {

69. if (out != null)

70. out.closeEntry();

71. if (in != null)

72. in.close();

73. } catch (IOException e) {

74. e.printStackTrace();

75. }

76. }

77. }

79. public void zipDirectory(File dir, ZipOutputStream out, String basedir) {

80. if (!dir.exists())

81. return;

82. File[] files = dir.listFiles();

83. for (int i = 0; i < files.length; i++) {

85. compress(files[i], out, basedir + dir.getName() + "/");

86. }

87. }

88. //測試

89. public static void main(String[] args) {

90. File f = new File("E:/Study/Java");

91. new CompactAlgorithm(new File( "D:/test",f.getName()+".zip")).zipFiles(f);

92. }

93. }

        完整工程實作界面化，通過界面完成對檔案的壓縮和解壓，如下圖：

Java實作zip檔案解壓[到指定目錄]：http://blog.csdn.net/ljheee/article/details/52736091

完整工程：https://github.com/ljheee/MyZip1.0