Java实现zip文件压缩（单个文件、文件夹以及文件和文件夹的组合压缩）

- 日理万妓 2022-05-03 05:56 259阅读 0赞

# Java实现zip文件压缩（单个文件、文件夹以及文件和文件夹的组合压缩） #

2016年10月04日 23:22:24 [ljheee][] 阅读数：13215 标签： [压缩][Link 1][java][][zip][] 更多

个人分类： [Java应用][Java]

1.  `package com.ljheee.ziptool.core;`
2.   
3.  `import java.io.File;`
4.  `import java.io.FileInputStream;`
5.  `import java.io.FileOutputStream;`
6.  `import java.io.IOException;`
7.  `import java.util.zip.ZipEntry;`
8.  `import java.util.zip.ZipOutputStream;`
9.   
10. `/**`
11. `* 压缩算法类`
12. `* 实现文件压缩，文件夹压缩，以及文件和文件夹的混合压缩`
13. `* @author ljheee`
14. `*`
15. `*/`
16. `public class CompactAlgorithm {`
17.  
18. `/**`
19. `* 完成的结果文件--输出的压缩文件`
20. `*/`
21. `File targetFile;`
22.  
23. `public CompactAlgorithm() {}`
24.  
25. `public CompactAlgorithm(File target) {`
26. `targetFile = target;`
27. `if (targetFile.exists())`
28. `targetFile.delete();`
29. `}`
30.  
31. `/**`
32. `* 压缩文件`
33. `*`
34. `* @param srcfile`
35. `*/`
36. `public void zipFiles(File srcfile) {`
37.  
38. `ZipOutputStream out = null;`
39. `try {`
40. `out = new ZipOutputStream(new FileOutputStream(targetFile));`
41.  
42. `if(srcfile.isFile()){`
43. `zipFile(srcfile, out, "");`
44. `} else{`
45. `File[] list = srcfile.listFiles();`
46. `for (int i = 0; i < list.length; i++) {`
47. `compress(list[i], out, "");`
48. `}`
49. `}`
50.  
51. `System.out.println("压缩完毕");`
52. `} catch (Exception e) {`
53. `e.printStackTrace();`
54. `} finally {`
55. `try {`
56. `if (out != null)`
57. `out.close();`
58. `} catch (IOException e) {`
59. `e.printStackTrace();`
60. `}`
61. `}`
62. `}`
63.  
64. `/**`
65. `* 压缩文件夹里的文件`
66. `* 起初不知道是文件还是文件夹--- 统一调用该方法`
67. `* @param file`
68. `* @param out`
69. `* @param basedir`
70. `*/`
71. `private void compress(File file, ZipOutputStream out, String basedir) {`
72. `/* 判断是目录还是文件 */`
73. `if (file.isDirectory()) {`
74. `this.zipDirectory(file, out, basedir);`
75. `} else {`
76. `this.zipFile(file, out, basedir);`
77. `}`
78. `}`
79.  
80. `/**`
81. `* 压缩单个文件`
82. `*`
83. `* @param srcfile`
84. `*/`
85. `public void zipFile(File srcfile, ZipOutputStream out, String basedir) {`
86. `if (!srcfile.exists())`
87. `return;`
88.  
89. `byte[] buf = new byte[1024];`
90. `FileInputStream in = null;`
91.  
92. `try {`
93. `int len;`
94. `in = new FileInputStream(srcfile);`
95. `out.putNextEntry(new ZipEntry(basedir + srcfile.getName()));`
96.  
97. `while ((len = in.read(buf)) > 0) {`
98. `out.write(buf, 0, len);`
99. `}`
100. `} catch (Exception e) {`
101. `e.printStackTrace();`
102. `} finally {`
103. `try {`
104. `if (out != null)`
105. `out.closeEntry();`
106. `if (in != null)`
107. `in.close();`
108. `} catch (IOException e) {`
109. `e.printStackTrace();`
110. `}`
111. `}`
112. `}`
113.  
114. `/**`
115. `* 压缩文件夹`
116. `* @param dir`
117. `* @param out`
118. `* @param basedir`
119. `*/`
120. `public void zipDirectory(File dir, ZipOutputStream out, String basedir) {`
121. `if (!dir.exists())`
122. `return;`
123.  
124. `File[] files = dir.listFiles();`
125. `for (int i = 0; i < files.length; i++) {`
126. `/* 递归 */`
127. `compress(files[i], out, basedir + dir.getName() + "/");`
128. `}`
129. `}`
130.  
131.  
132. `//测试`
133. `public static void main(String[] args) {`
134. `File f = new File("E:/Study/Java");`
135. `new CompactAlgorithm(new File( "D:/test",f.getName()+".zip")).zipFiles(f);`
136. `}`
137.  
138. `}`

完整工程实现界面化，通过界面完成对文件的压缩和解压，如下图：

[Java实现zip文件解压\[到指定目录\]][Java_zip]：[http://blog.csdn.net/ljheee/article/details/52736091][Java_zip]

![Center][]

完整工程：[https://github.com/ljheee/MyZip1.0][https_github.com_ljheee_MyZip1.0]

[ljheee]: https://me.csdn.net/ljheee
[Link 1]: http://so.csdn.net/so/search/s.do?q=%E5%8E%8B%E7%BC%A9&t=blog
[java]: http://so.csdn.net/so/search/s.do?q=java&t=blog
[zip]: http://so.csdn.net/so/search/s.do?q=zip&t=blog
[Java]: https://blog.csdn.net/ljheee/article/category/6447060
[Java_zip]: http://blog.csdn.net/ljheee/article/details/52736091
[Center]: /images/20220503/a7064191229c40469fe4408c684c6b28.png
[https_github.com_ljheee_MyZip1.0]: https://github.com/ljheee/MyZip1.0