Android zip文件壓縮解壓縮

Android zip文件壓縮解壓縮：

1. /**
2. * Android Zip壓縮解壓縮
3. * @author Ren.xia
4. * @version 1.0
5. * @updated 26-七月-2010 13:04:27
6. */
7. public class XZip {
9. public XZip(){
11. }
13. /**
14. * 取得壓縮包中的 文件列表(文件夾,文件自選)
15. * @param zipFileString 壓縮包名字
16. * @param bContainFolder 是否包括 文件夾
17. * @param bContainFile 是否包括 文件
18. * @return
19. * @throws Exception
20. */
21. public static java.util.List<java.io.File> GetFileList(String zipFileString, boolean bContainFolder, boolean bContainFile)throws Exception {
23. android.util.Log.v("XZip", "GetFileList(String)");
25. java.util.List<java.io.File> fileList = new java.util.ArrayList<java.io.File>();
26. java.util.zip.ZipInputStream inZip = new java.util.zip.ZipInputStream(new java.io.FileInputStream(zipFileString));
27. java.util.zip.ZipEntry zipEntry;
28. String szName = "";
30. while ((zipEntry = inZip.getNextEntry()) != null) {
31. szName = zipEntry.getName();
33. if (zipEntry.isDirectory()) {
35. // get the folder name of the widget
36. szName = szName.substring(0, szName.length() - 1);
37. java.io.File folder = new java.io.File(szName);
38. if (bContainFolder) {
39. fileList.add(folder);
40. }
42. } else {
43. java.io.File file = new java.io.File(szName);
44. if (bContainFile) {
45. fileList.add(file);
46. }
47. }
48. }//end of while
50. inZip.close();
52. return fileList;
53. }
55. /**
56. * 返回壓縮包中的文件InputStream
57. * @param zipFileString 壓縮文件的名字
58. * @param fileString 解壓文件的名字
59. * @return InputStream
60. * @throws Exception
61. */
62. public static java.io.InputStream UpZip(String zipFileString, String fileString)throws Exception {
63. android.util.Log.v("XZip", "UpZip(String, String)");
64. java.util.zip.ZipFile zipFile = new java.util.zip.ZipFile(zipFileString);
65. java.util.zip.ZipEntry zipEntry = zipFile.getEntry(fileString);
67. return zipFile.getInputStream(zipEntry);
69. }
72. /**
73. * 解壓一個壓縮文檔 到指定位置
74. * @param zipFileString 壓縮包的名字
75. * @param outPathString 指定的路徑
76. * @throws Exception
77. */
78. public static void UnZipFolder(String zipFileString, String outPathString)throws Exception {
79. android.util.Log.v("XZip", "UnZipFolder(String, String)");
80. java.util.zip.ZipInputStream inZip = new java.util.zip.ZipInputStream(new java.io.FileInputStream(zipFileString));
81. java.util.zip.ZipEntry zipEntry;
82. String szName = "";
84. while ((zipEntry = inZip.getNextEntry()) != null) {
85. szName = zipEntry.getName();
87. if (zipEntry.isDirectory()) {
89. // get the folder name of the widget
90. szName = szName.substring(0, szName.length() - 1);
91. java.io.File folder = new java.io.File(outPathString + java.io.File.separator + szName);
92. folder.mkdirs();
94. } else {
96. java.io.File file = new java.io.File(outPathString + java.io.File.separator + szName);
97. file.createNewFile();
98. // get the output stream of the file
99. java.io.FileOutputStream out = new java.io.FileOutputStream(file);
100. int len;
101. byte[] buffer = new byte[1024];
102. // read (len) bytes into buffer
103. while ((len = inZip.read(buffer)) != -1) {
104. // write (len) byte from buffer at the position 0
105. out.write(buffer, 0, len);
106. out.flush();
107. }
108. out.close();
109. }
110. }//end of while
112. inZip.close();
114. }//end of func
117. /**
118. * 壓縮文件,文件夾
119. * @param srcFileString 要壓縮的文件/文件夾名字
120. * @param zipFileString 指定壓縮的目的和名字
121. * @throws Exception
122. */
123. public static void ZipFolder(String srcFileString, String zipFileString)throws Exception {
124. android.util.Log.v("XZip", "ZipFolder(String, String)");
126. //創建Zip包
127. java.util.zip.ZipOutputStream outZip = new java.util.zip.ZipOutputStream(new java.io.FileOutputStream(zipFileString));
129. //打開要輸出的文件
130. java.io.File file = new java.io.File(srcFileString);
132. //壓縮
133. ZipFiles(file.getParent()+java.io.File.separator, file.getName(), outZip);
135. //完成,關閉
136. outZip.finish();
137. outZip.close();
139. }//end of func
141. /**
142. * 壓縮文件
143. * @param folderString
144. * @param fileString
145. * @param zipOutputSteam
146. * @throws Exception
147. */
148. private static void ZipFiles(String folderString, String fileString, java.util.zip.ZipOutputStream zipOutputSteam)throws Exception{
149. android.util.Log.v("XZip", "ZipFiles(String, String, ZipOutputStream)");
151. if(zipOutputSteam == null)
152. return;
154. java.io.File file = new java.io.File(folderString+fileString);
156. //判斷是不是文件
157. if (file.isFile()) {
159. java.util.zip.ZipEntry zipEntry = new java.util.zip.ZipEntry(fileString);
160. java.io.FileInputStream inputStream = new java.io.FileInputStream(file);
161. zipOutputSteam.putNextEntry(zipEntry);
163. int len;
164. byte[] buffer = new byte[4096];
166. while((len=inputStream.read(buffer)) != -1)
167. {
168. zipOutputSteam.write(buffer, 0, len);
169. }
171. zipOutputSteam.closeEntry();
172. }
173. else {
175. //文件夾的方式,獲取文件夾下的子文件
176. String fileList[] = file.list();
178. //如果沒有子文件, 則添加進去即可
179. if (fileList.length <= 0) {
180. java.util.zip.ZipEntry zipEntry = new java.util.zip.ZipEntry(fileString+java.io.File.separator);
181. zipOutputSteam.putNextEntry(zipEntry);
182. zipOutputSteam.closeEntry();
183. }
185. //如果有子文件, 遍歷子文件
186. for (int i = 0; i < fileList.length; i++) {
187. ZipFiles(folderString, fileString+java.io.File.separator+fileList[i], zipOutputSteam);
188. }//end of for
190. }//end of if
192. }//end of func
194. public void finalize() throws Throwable {
196. }
198. }