import java.io.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.zip.ZipOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class ZipUtil {
private static final Log log = LogFactory.getLog(ZipUtil.class);
public static void craeteZipPath(String path) throws IOException{
File zipFile = new File(path+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+".zip");
File[] files = new File(path).listFiles();
List<File> srcfile=new ArrayList<File>();
if(files!=null && files.length > 0){
System.out.println("----------------"+files.length) ;
for(File excelFile:files){
srcfile.add(excelFile) ;
}
ZipUtil.zipFiles(srcfile, zipFile);
}
}
/**
* 压缩文件
*
* @param srcfile File[] 需要压缩的文件列表
* @param zipfile File 压缩后的文件
*/
public static void zipFiles(List<File> srcfile, File zipfile) {
byte[] buf = new byte[1024];
try {
// Create the ZIP file
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));
// Compress the files
for (int i = 0; i < srcfile.size(); i++) {
File file = srcfile.get(i);
FileInputStream in = new FileInputStream(file);
// Add ZIP entry to output stream.
out.putNextEntry(new ZipEntry(file.getName()));
// Transfer bytes from the file to the ZIP file
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
// Complete the entry
out.closeEntry();
in.close();
}
// Complete the ZIP file
out.close();
} catch (IOException e) {
log.error("ZipUtil zipFiles exception:"+e);
}
}
/**
* 解压缩
*
* @param zipfile File 需要解压缩的文件
* @param descDir String 解压后的目标目录
*/
public static void unZipFiles(File zipfile, String descDir) {
try {
// Open the ZIP file
ZipFile zf = new ZipFile(zipfile);
for (Enumeration entries = zf.entries(); entries.hasMoreElements();) {
// Get the entry name
ZipEntry entry = ((ZipEntry) entries.nextElement());
String zipEntryName = entry.getName();
InputStream in = zf.getInputStream(entry);
// System.out.println(zipEntryName);
OutputStream out = new FileOutputStream(descDir + zipEntryName);
byte[] buf1 = new byte[1024];
int len;
while ((len = in.read(buf1)) > 0) {
out.write(buf1, 0, len);
}
// Close the file and stream
in.close();
out.close();
}
} catch (IOException e) {
log.error("ZipUtil unZipFiles exception:"+e);
}
}
/**
* Main
*
* @param args
*/
public static void main(String[] args) {
try {
// List<File> srcfile=new ArrayList<File>();
//// srcfile.add(new File("D:\\data\\146_5186_201407.csv"));
// srcfile.add(new File("D:\\data\\146_5186_201408.csv"));
// srcfile.add(new File("D:\\data\\146_5186_201409.csv"));
//// srcfile.add(new File("D:\\data\\146_5186_201410.csv"));
//// srcfile.add(new File("D:\\data\\146_5186_201411.csv"));
// File zipfile = new File("D:\\data\\demo1.zip");
// ZipUtil.zipFiles(srcfile, zipfile);
ZipUtil.craeteZipPath("D:\\data\\server\\demo1") ;
} catch (IOException e) {
e.printStackTrace();
}
}
}