mysileng

留言簿(1)

隨筆分類

HTML學習(3) (rss)

隨筆檔案

文章檔案

2009年5月 (1)

閱讀排行榜

評論排行榜

常用鏈接

統(tǒng)計

隨筆 - 5
文章 - 1
評論 - 0
引用 - 0

文件夾導入與導出

1package homeWork.first;

2

3import java.io.File;

4import java.io.FileInputStream;

5import java.io.FileNotFoundException;

6import java.io.FileOutputStream;

7import java.io.IOException;

8import java.util.zip.ZipEntry;

9import java.util.zip.ZipInputStream;

10import java.util.zip.ZipOutputStream;

11

12/** *//**

13 * 壓縮與解壓類

14 *

15 * @author mysileng

16 *

17 */

18public class ZipDemo {

19

20 /** *//**

21 * 壓縮單個文件

22 *

23 * @param fileIn

24 * @param fileout

25 */

26 public void singleFileZip(File fileIn, File fileout) {

27 FileInputStream in = null;

28 FileOutputStream out = null;

29 ZipOutputStream zip = null;

30 try {

31 in = new FileInputStream(fileIn);

32 out = new FileOutputStream(fileout);

33 zip = new ZipOutputStream(out);

34 byte[] b = new byte[1024];

35

36 ZipEntry entry = new ZipEntry(fileIn.getName());

37 zip.putNextEntry(entry);

38 while (in.read(b) != -1) {

39 zip.write(b);

40 }

41 } catch (FileNotFoundException e) {

42 e.printStackTrace();

43 } catch (IOException e) {

44 e.printStackTrace();

45 } finally {

46 try {

47 zip.close();

48 out.close();

49 in.close();

50 } catch (IOException e) {

51 e.printStackTrace();

52 }

53

54 }

55

56 }

57

58 /** *//**

59 * 壓縮文件夾

60 *

61 * @param befor文件夾壓縮之前的路徑

62 * @param after文件夾壓縮之后的路徑

63 */

64 public void mirsZip(String befor, String after) {

65 File fileIn = new File(befor);

66 File fileOut = new File(after);

67

68 FileOutputStream out = null;

69 ZipOutputStream zip = null;

70 String base = "";

71 try {

72 out = new FileOutputStream(fileOut);

73 zip = new ZipOutputStream(out);

74 zip(zip, fileIn, base);

75 } catch (FileNotFoundException e) {

76 e.printStackTrace();

77 } finally {

78 try {

79 zip.close();

80 out.close();

81 } catch (IOException e) {

82 e.printStackTrace();

83 }

84

85 }

86 }

87

88 private void zip(ZipOutputStream zip, File fileIn, String base) {

89 if (fileIn.isDirectory()) {

90 File[] list = fileIn.listFiles();

91 base = base + fileIn.getName() + "/";// 在壓縮文件里建立文件夾

92 ZipEntry entry = new ZipEntry(base);

93 try {

94 zip.putNextEntry(entry);

95 } catch (IOException e) {

96 e.printStackTrace();

97 }

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

99 zip(zip, list[i], base);

100 }

101 } else {

102 FileInputStream in = null;

103 try {

104 in = new FileInputStream(fileIn);

105 byte[] b = new byte[1024];

106 ZipEntry entry = new ZipEntry(base + fileIn.getName());

107 zip.putNextEntry(entry);

108 while (in.read(b) != -1) {

109 zip.write(b);

110 }

111 } catch (FileNotFoundException e) {

112 e.printStackTrace();

113 } catch (IOException e) {

114 e.printStackTrace();

115 }

116 }

117

118 }

119

120 /** *//**

121 * 解壓

122 *

123 * @param befor

124 * @param after

125 */

126 public void getZip(String befor, String after) {

127 File fileIn = new File(befor);

128 FileInputStream in = null;

129 FileOutputStream out = null;

130 ZipInputStream zip = null;

131

132 try {

133 in = new FileInputStream(fileIn);

134 zip = new ZipInputStream(in);

135 ZipEntry entry = null;

136

137 while ((entry = zip.getNextEntry()) != null) {

138 if (entry.isDirectory()) {// 判斷是文件夾還是文件

139 new File(after + entry.getName()).mkdirs();// 如果是文件夾就建立

140 } else {

141 out = new FileOutputStream(// 如果是文件就讀出來

142 new File(after + entry.getName()));

143 byte[] b = new byte[1024];

144 while (zip.read(b) != -1) {

145 out.write(b);

146 }

147 out.close();

148 }

149 }

150 } catch (FileNotFoundException e) {

151 e.printStackTrace();

152 } catch (IOException e) {

153 e.printStackTrace();

154 } finally {

155 try {

156 zip.close();

157 in.close();

158 } catch (IOException e) {

159 e.printStackTrace();

160 }

161 }

162

163 }

164}

165

posted on 2009-05-24 00:21 鑫龍閱讀(214) 評論(0) 編輯收藏

新用戶注冊刷新評論列表


只有注冊用戶登錄后才能發(fā)表評論。




網(wǎng)站導航: 博客園 IT新聞 Chat2DB C++博客博問管理