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package mobvista.dmp.util;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.zip.GZIPOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* @package: mobvista.dmp.util
* @author: wangjf
* @date: 2021/8/3
* @time: 11:21 上午
* @email: jinfeng.wang@mobvista.com
*/
public class ZipFileUtil {
public static final Logger logger = LoggerFactory.getLogger(ZipFileUtil.class);
/**
* 压缩单个文件
*/
public static void zipFile(String filePath, String zipPath) {
try {
File file = new File(filePath);
File zipFile = new File(zipPath);
InputStream input = new FileInputStream(file);
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
zipOut.putNextEntry(new ZipEntry(file.getName()));
int temp = 0;
while ((temp = input.read()) != -1) {
zipOut.write(temp);
}
input.close();
zipOut.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void compress(String filePath, String gzipPath) {
byte[] buffer = new byte[1024];
try {
// Specify Name and Path of Output GZip file here
GZIPOutputStream gos = new GZIPOutputStream(new FileOutputStream(gzipPath));
// Specify the input file here
FileInputStream fis = new FileInputStream(filePath);
// Read from input file and write to output GZip file
int length;
// fis.read(buffer)， 结果时Buffer有了内容，同时返回读取内容的长度，读到文件末尾时读取内容的长度变为-1
while ((length = fis.read(buffer)) > 0) {
gos.write(buffer, 0, length);
}
fis.close();
gos.finish();
gos.close();
System.out.println(filePath + ",File Compressed!");
} catch (IOException e) {
e.printStackTrace();
}
}
}