最近在工作中做了一个文件的压缩并下载的功能,在此做下记录。文件压缩的jar包使用ant的jar,一开始用的jdk本身的jar,但是出现了在本地测试没有问题,但是在客户服务器(windowsServers 2008)上出现压缩后的压缩包内的中文文件名乱码问题。经过网上查询并且测试,发现引用ant 的org.apache.tools.zip.ZipOutputStream不存在此问题。ant包存在ZipOutputStream.setEncoding("GBK");方法。通过此方法可以解决上面的问题。而jdk的zip包并没有这个方法。
下面把具体的压缩代码贴出来同大家参考:
package com.dhc.msf.common;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
import org.apache.log4j.Logger;
public class ZipCompressor {
static final int BUFFER = 8192;
private File zipFile;
private Logger log = Logger.getLogger(ZipCompressor.class);
public ZipCompressor(String pathName) {
zipFile = new File(pathName);
}
public void compress(String... pathName) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
out = new ZipOutputStream(cos);
out.setEncoding("GBK");//解决中文乱码
String basedir = "";
for (int i=0;i<pathName.length;i++){
compress(new File(pathName[i]), out, basedir);
}
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public void compress(String srcPathName) {
File file = new File(srcPathName);
if (!file.exists())
throw new RuntimeException(srcPathName + "不存在!");
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,
new CRC32());
ZipOutputStream out = new ZipOutputStream(cos);
out.setEncoding("GBK");
String basedir = "";
compress(file, out, basedir);
out.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void compress(File file, ZipOutputStream out, String basedir) {
/* 判断是目录还是文件 */
if (file.isDirectory()) {
System.out.println("压缩:" + basedir + file.getName());
this.compressDirectory(file, out, basedir);
} else {
System.out.println("压缩:" + basedir + file.getName());
this.compressFile(file, out, basedir);
}
}
/** 压缩一个目录 */
private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
if (!dir.exists())
return;
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
/* 递归 */
compress(files[i], out, basedir + dir.getName() + "/");
}
}
/** 压缩一个文件 */
private void compressFile(File file, ZipOutputStream out, String basedir) {
if (!file.exists()) {
return;
}
try {
BufferedInputStream bis = new BufferedInputStream(
new FileInputStream(file));
ZipEntry entry = new ZipEntry(basedir + file.getName());
log.info("被压缩的文件名:"+file.getName());
out.putNextEntry(entry);
int count;
byte data[] = new byte[BUFFER];
while ((count = bis.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
bis.close();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void main(String[] args) {
ZipCompressor zc = new ZipCompressor("E:/resource/resource.zip");
zc.compress("E:/resource/20160515100923078.jpg","E:/resource/20160515100923446.jpg","E:/resource/20160515100923684.jpg","E:/resource/busi.xml");
}
}