在Android中内置有解压的工具,一般可以使用下面的方法解压:

注意import的包:

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import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* 解压缩一个文件
*
* @param zipFile 压缩文件
* @param folderPath 解压缩的目标目录
* @throws IOException 当解压缩过程出错时抛出
*/
public static void upZipFile(File zipFile, String folderPath) throws ZipException, IOException {
File desDir = new File(folderPath);
if (!desDir.exists()) {
desDir.mkdirs();
}
ZipFile zf = new ZipFile(zipFile);
for (Enumeration<?> entries = zf.entries(); entries.hasMoreElements();) {
ZipEntry entry = ((ZipEntry)entries.nextElement());
InputStream in = zf.getInputStream(entry);
if(entry.getName().indexOf("__MACOSX")>=0){
continue;
}
String str = folderPath + File.separator + entry.getName();
str = new String(str.getBytes("8859_1"), "UTF-8");
File desFile = new File(str);
if (!desFile.exists()) {
File fileParentDir = desFile.getParentFile();
if (!fileParentDir.exists()) {
fileParentDir.mkdirs();
}
desFile.createNewFile();
}
OutputStream out = new FileOutputStream(desFile);
byte buffer[] = new byte[BUFF_SIZE];
int realLength;
while ((realLength = in.read(buffer)) > 0) {
out.write(buffer, 0, realLength);
}
in.close();
out.close();
}
}

但是在解压遇到中文的时候,解压出来中文会变成乱码,把上面的编码改成啥都没用。

这时候可以使用apache-ant-zip的解压包来解决:

然后使用这个包中的引用:

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import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
public static void upZipFile(File zipFile, String folderPath) throws IOException {
OutputStream os = null;
InputStream is = null;
ZipFile zf = null;
try {
zf = new ZipFile(zipFile,"UTF-8");
String directoryPath = "";
directoryPath = folderPath;
Enumeration entryEnum = zf.getEntries();
if (null != entryEnum) {
ZipEntry zipEntry = null;
while (entryEnum.hasMoreElements()) {
zipEntry = (ZipEntry) entryEnum.nextElement();
if (zipEntry.isDirectory()) {
//不处理文件夹
directoryPath = directoryPath + File.separator
+ zipEntry.getName();
System.out.println(directoryPath);
continue;
}
if (zipEntry.getSize() > 0) {
File targetFile = new File(directoryPath+ File.separator + zipEntry.getName());
if (!targetFile.exists()) {
//如果不存在就创建
File fileParentDir = targetFile.getParentFile();
if (!fileParentDir.exists()) {
fileParentDir.mkdirs();
}
targetFile.createNewFile();
}
os = new BufferedOutputStream(new FileOutputStream(targetFile));
is = zf.getInputStream(zipEntry);
byte[] buffer = new byte[4096];
int readLen = 0;
while ((readLen = is.read(buffer, 0, 1024)) >= 0) {
os.write(buffer, 0, readLen);
}
os.flush();
os.close();
}
}
}
} catch (IOException ex) {
throw ex;
} finally {
if (null != is) {
is.close();
}
if (null != os) {
os.close();
}
}
}