Java对zip文件的各种操作

package com.jadlsoft.utils;


import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipException;


import org.apache.log4j.Logger;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;




public class ZipUtils {

private static Logger log = Logger.getLogger(ZipUtils.class);
/**
* 解压文件到指定的目录下
* @param zipFileName ZIP文件
* @param outputDirectory 解压的目录
*/
public static void decompressZip(String zipFileName, String outputDirectory) {
org.apache.tools.zip.ZipFile zipFile = null;
try {
zipFile = new ZipFile(zipFileName, "gb2312");
java.util.Enumeration e = zipFile.getEntries();
ZipEntry zipEntry = null;
while (e.hasMoreElements()) {
zipEntry = (ZipEntry) e.nextElement();
if (zipEntry.isDirectory()) {
String name = zipEntry.getName();
name = name.substring(0, name.length() - 1);
File f1 = new File(parseFileSeperator(outputDirectory));
f1.mkdir();
File f = new File(parseFileSeperator(outputDirectory) + name);
f.mkdir();
} else {
String filepath = parseFileSeperator(outputDirectory) + zipEntry.getName();
File f = new File(filepath);
File dir = new File(f.getParent());
InputStream in = null;
FileOutputStream out = null;
if (!dir.exists()) {
dir.mkdirs();
}
try {
f.createNewFile();
in = zipFile.getInputStream(zipEntry);
out = new FileOutputStream(f);
int c;
byte[] by = new byte[1024];
while ((c = in.read(by)) != -1) {
out.write(by, 0, c);
}
} catch (ZipException e1) {
log.error("解压文件失败。文件名：" + zipFileName + "。错误：" + e1.getMessage());
throw new RuntimeException(e1);
} catch (IOException e1) {
log.error("解压文件失败。文件名：" + zipFileName + "。错误：" + e1.getMessage());
throw new RuntimeException(e1);
} finally {
try {
if(out != null){
out.flush();
out.close();
}
if(in != null){
in.close();
}
} catch (IOException e1) {
log.error("解压文件关闭文件流失败。文件名：" + zipFileName + "。错误：" + e1.getMessage());
throw new RuntimeException(e1);
}
}
}
}
} catch (IOException e1) {
log.error("解压文件失败。文件名：" + zipFileName + "。错误：" + e1.getMessage());
throw new RuntimeException(e1);
} finally {
try {
if(zipFile != null){
zipFile.close();
}
} catch (IOException e) {
log.error("解压文件关闭文件流失败。文件名：" + zipFileName + "。错误：" + e.getMessage());
throw new RuntimeException(e);
}
}


}


/**
* 压缩文件
* @param fromPath
* @param toPath
*/
public static boolean compressZip(String fromPath, String toPath) {
boolean isError = false;
ZipOutputStream out = null;
File fromFile = new File(fromPath);
File toFile = new File(toPath);
FileOutputStream fos = null;
try {
fos = new FileOutputStream(toFile);
out = new ZipOutputStream(new BufferedOutputStream(fos));
fromPath = fromFile.getAbsolutePath() + "\\";
makeZip(fromFile , out , fromPath);
} catch (FileNotFoundException e) {
isError=true;
e.printStackTrace();
} finally{
try {
out.close();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return isError;
}

private static void makeZip(File fromFile , ZipOutputStream out , String dir) {
try {
File[] fileList = fromFile.listFiles();
for (int i = 0; i < fileList.length; i++) {
File _f = fileList[i];
if (_f.isDirectory()) {
makeZip(_f , out , dir);
} else {
String path = _f.getAbsolutePath();
path = getAbsolutePath(path , dir);
writeEntry(path, _f, out);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}

private static String getAbsolutePath(String strPath , String dir) throws UnsupportedEncodingException {
return strPath.substring(dir.length(), strPath.length());
}

private static final int BUFFER = 2048;

private static void writeEntry(String EntryName, File file, ZipOutputStream out) {
ZipEntry entry = new ZipEntry(EntryName);
FileInputStream fi = null;
BufferedInputStream origin = null;
try {
out.putNextEntry(entry);
fi = new FileInputStream(file);
origin = new BufferedInputStream(fi, BUFFER);
int count;
byte data[] = new byte[BUFFER];
while ((count = origin.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally{
try {
if(origin != null)
origin.close();
if(fi != null)
fi.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 检查文件路径是否以“/”结尾，如果没有则增加“/”
* @param dir
* @return
*/
private static String parseFileSeperator(String dir){
if(dir == null || dir.equals("")){
return "";
}
return dir.endsWith("/") ? dir : (dir + "/");
}


/**
* add by zhaohong'en
* 检查压缩包里面的文件是否包含xml文件
* @param zipFileName
* @return
*/
public static boolean isXmlFile(String zipFileName){
org.apache.tools.zip.ZipFile zipFile = null;
boolean isFlag=false;
try {
zipFile = new ZipFile(zipFileName, "gb2312");
java.util.Enumeration e = zipFile.getEntries();
ZipEntry zipEntry = null;
while (e.hasMoreElements()) {
zipEntry = (ZipEntry) e.nextElement();

String filename = zipEntry.toString();
if(filename.substring(filename.length()-3,filename.length()).equals("xml")){
isFlag=true;
}

}
} catch (IOException e1) {
//log.error("解压文件失败。文件名：" + zipFileName + "。错误：" + e1.getMessage());
throw new RuntimeException(e1);
} finally {
try {
if(zipFile != null){
zipFile.close();
}
} catch (IOException e) {
//log.error("解压文件关闭文件流失败。文件名：" + zipFileName + "。错误：" + e.getMessage());
throw new RuntimeException(e);
}
}
return isFlag;


}






/**
* add by zhaohong'en
* 检查压缩包里面的文件是否包含xml文件
* @param zipFileName
* @return
*/
public List getZipFiles(String zipFileName){
org.apache.tools.zip.ZipFile zipFile = null;
List fileList = new ArrayList();
boolean isFlag=false;
try {
zipFile = new ZipFile(zipFileName, "gb2312");
java.util.Enumeration e = zipFile.getEntries();
ZipEntry zipEntry = null;
while (e.hasMoreElements()) {
zipEntry = (ZipEntry) e.nextElement();

String filename = zipEntry.toString();
fileList.add(filename);
}
} catch (IOException e1) {
//log.error("解压文件失败。文件名：" + zipFileName + "。错误：" + e1.getMessage());
throw new RuntimeException(e1);
} finally {
try {
if(zipFile != null){
zipFile.close();
}
} catch (IOException e) {
//log.error("解压文件关闭文件流失败。文件名：" + zipFileName + "。错误：" + e.getMessage());
throw new RuntimeException(e);
}
}
return fileList;


}

/**
* 检查压缩包
* @param zipFileName
* @param outputDirectory
* @return
*/
public boolean checkZipFile(String zipFileName, String outputDirectory){
boolean isCheck=true;

try{
log.info("fileUp--step: 3----check zip file-----"+zipFileName);
decompressZip(zipFileName, outputDirectory);

}catch(Exception checkEx){
log.info("check zip file failure...."+zipFileName);
isCheck=false;
}
return isCheck;
}
}