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849天前import java.io.File; |
import java.io.FileInputStream; |
import java.io.FileOutputStream; |
import java.io.IOException; |
import java.io.InputStream; |
import java.util.Enumeration; |
import org.apache.tools.zip.ZipEntry; |
import org.apache.tools.zip.ZipFile; |
import org.apache.tools.zip.ZipOutputStream; |
import org.slf4j.Logger; |
import org.slf4j.LoggerFactory; |
/** |
* 压缩，解压，删除，拷贝操作。 |
* |
* 注意：此类中用到的压缩类ZipEntry等都来自于org.apache.tools包而非java.util。此包在ant.jar中有。 |
* |
* * @author Tony |
*/ |
public class FileUtil { |
protected static Logger log = LoggerFactory.getLogger(FileUtil.class); |
/** |
* |
* 压缩文件 |
* |
* @param inputFileName |
* 要压缩的文件或文件夹路径，例如：c:\\a.txt,c:\\a\ |
* |
* @param outputFileName |
* 输出zip文件的路径，例如：c:\\a.zip |
* |
*/ |
public static void zip(String inputFileName, String outputFileName) |
throws Exception { |
ZipOutputStream out = new ZipOutputStream(new FileOutputStream( |
outputFileName)); |
zip(out, new File(inputFileName), ""); |
log.debug("压缩完成！"); |
out.closeEntry(); |
out.close(); |
} |
/** |
* |
* 压缩文件 |
* |
* @param out |
* org.apache.tools.zip.ZipOutputStream |
* |
* @param file |
* 待压缩的文件 |
* |
* @param base |
* 压缩的根目录 |
* |
*/ |
private static void zip(ZipOutputStream out, File file, String base) |
throws Exception { |
if (file.isDirectory()) { |
File[] fl = file.listFiles(); |
base = base.length() == 0 ? "" : base + File.separator; |
for (int i = 0; i < fl.length; i++) { |
zip(out, fl[i], base + fl[i].getName()); |
} |
} else { |
out.putNextEntry(new ZipEntry(base)); |
log.debug("添加压缩文件：" + base); |
FileInputStream in = new FileInputStream(file); |
int b; |
while ((b = in.read()) != -1) { |
out.write(b); |
} |
in.close(); |
} |
} |
/** |
* |
* 解压zip文件 |
* |
* @param zipFileName |
* 待解压的zip文件路径，例如：c:\\a.zip |
* |
* @param outputDirectory |
* 解压目标文件夹,例如：c:\\a\ |
* |
*/ |
public static void unZip(String zipFileName, String outputDirectory) |
throws Exception { |
ZipFile zipFile = new ZipFile(zipFileName); |
try { |
Enumeration<?> e = zipFile.getEntries(); |
ZipEntry zipEntry = null; |
createDirectory(outputDirectory, ""); |
while (e.hasMoreElements()) { |
zipEntry = (ZipEntry) e.nextElement(); |
log.debug("解压：" + zipEntry.getName()); |
if (zipEntry.isDirectory()) { |
String name = zipEntry.getName(); |
name = name.substring(0, name.length() - 1); |
File f = new File(outputDirectory + File.separator + name); |
f.mkdir(); |
log.debug("创建目录：" + outputDirectory + File.separator + name); |
} else { |
String fileName = zipEntry.getName(); |
fileName = fileName.replace('\\', '/'); |
if (fileName.indexOf("/") != -1) { |
createDirectory(outputDirectory, fileName.substring(0, |
fileName.lastIndexOf("/"))); |
fileName = fileName.substring( |
fileName.lastIndexOf("/") + 1, |
fileName.length()); |
} |
File f = new File(outputDirectory + File.separator |
+ zipEntry.getName()); |
f.createNewFile(); |
InputStream in = zipFile.getInputStream(zipEntry); |
FileOutputStream out = new FileOutputStream(f); |
byte[] by = new byte[1024]; |
int c; |
while ((c = in.read(by)) != -1) { |
out.write(by, 0, c); |
} |
in.close(); |
out.close(); |
} |
} |
} catch (Exception ex) { |
System.out.println(ex.getMessage()); |
} finally { |
zipFile.close(); |
log.debug("解压完成！"); |
} |
} |
} |
