packagecom.zhey.decompression;
importorg.apache.commons.compress.archivers.zip.ZipArchiveEntry;
importorg.apache.commons.compress.archivers.zip.ZipEncoding;
importorg.apache.commons.compress.archivers.zip.ZipEncodingHelper;
importorg.apache.commons.compress.archivers.zip.ZipFile;
importjava.io.*;
importjava.util.ArrayList;
importjava.util.Enumeration;
importjava.util.List;
/**
* 获取zip文件的详细目录结构
* 解压指定的文件
*
*@authorzhey
*/
publicclassZipextendsAbastractCompressimplementsCompression{
private ZipFilezip File;
@Override
publicbooleanloadCompress(Filefile) {
Listfiles=newArrayList();
try{
zipFile=newZipFile(file,"CP936");
EnumerationzipEntryEnumeration=zipFile.getEntries();
while(zipEntryEnumeration.hasMoreElements()) {
ZipArchiveEntryzipEntry=zipEntryEnumeration.nextElement();
if(zipEntry.isDirectory()) {
addPath(zipEntry.getName());
}else{
addFile(zipEntry.getName());
}
}
returntrue;
}catch(IOExceptione) {
}
returnfalse;
}
@Override
protectedbooleanextract(Stringfilepath,StringdestPath) {
try{
ZipArchiveEntryentry=(ZipArchiveEntry) zipFile.getEntry(filepath);
if(entry==null) {
returnfalse;
}else{
if(entry.isDirectory()) {
EnumerationzipArchiveEntries=zipFile.getEntries();
while(zipArchiveEntries.hasMoreElements()) {
ZipArchiveEntrytmpEntry=zipArchiveEntries.nextElement();
if(tmpEntry.getName().startsWith(filepath)&&!tmpEntry.isDirectory()) {
StringfileName=tmpEntry.getName();
fileName=fileName.substring(filepath.length(), fileName.length());
writeToFile(tmpEntry, fileName, destPath);
}
}
}else{
//解压文件
StringsrcFileName=filepath.substring(filepath.lastIndexOf(File.separator), filepath.length());
writeToFile(entry, srcFileName, destPath);
}
}
returntrue;
}catch(FileNotFoundExceptione) {
e.printStackTrace();
}catch(IOExceptione) {
e.printStackTrace();
}
returnfalse;
}
@Override
protectedbooleanextractFile(Stringfilepath,StringdestPath,StringnewName) {
try{
ZipArchiveEntryentry=(ZipArchiveEntry) zipFile.getEntry(filepath);
if(entry==null) {
returnfalse;
}else{
if(entry.isDirectory()) {
returnfalse;
}else{
//解压文件
writeToFile(entry, newName, destPath);
}
}
returntrue;
}catch(FileNotFoundExceptione) {
e.printStackTrace();
}catch(IOExceptione) {
e.printStackTrace();
}
returnfalse;
}
privatevoidwriteToFile(ZipArchiveEntryentry,StringsrcFileName,StringdestPath)throwsIOException{
InputStreaminputStream=zipFile.getInputStream(entry);
OutputStreamoutputStream;
FiledestDir=newFile(destPath);
if(!destDir.exists()) {
destDir.mkdir();
}
if(destPath.endsWith(File.separator)) {
destPath+=srcFileName;
}else{
destPath=destPath+File.separator+srcFileName;
}
Filefile=newFile(destPath);
Filedir=file.getParentFile();
if(!dir.exists())
dir.mkdirs();
outputStream=newFileOutputStream(destPath);
byte[] buffer=newbyte[1024];
intsize;
while((size=inputStream.read(buffer))>0) {
outputStream.write(buffer,0, size);
}
outputStream.close();
inputStream.close();
}
@Override
publicvoidclose() {
try{
if(zipFile!=null)
zipFile.close();
}catch(IOExceptione) {
e.printStackTrace();
}
}
}
