- <span style="font-size:18px;">/**
- * lsz
- */
- public final class ZipUtil {
- /**
- * 解压zip文件
- * @param unZipfile
- * @param destFile
- */
- public static void unZip(String unZipfile, String destFile) {
- FileOutputStream fileOut;
- File file;
- InputStream inputStream;
- byte[] buf = new byte[1024*4];
- try {
- //生成一个zip的文件
- ZipFile zipFile = new ZipFile(unZipfile, "GBK");
- //遍历zipFile中所有的实体,并把他们解压出来
- for (@SuppressWarnings("unchecked")
- Enumeration<ZipEntry> entries = zipFile.getEntries(); entries
- .hasMoreElements();) {
- ZipEntry entry = entries.nextElement();
- //生成他们解压后的一个文件
- file = new File(destFile+File.separator+entry.getName());
- if (entry.isDirectory()) {
- file.mkdirs();
- } else {
- // 如果指定文件的目录不存在,则创建之.
- File parent = file.getParentFile();
- if (!parent.exists()) {
- parent.mkdirs();
- }
- //获取出该压缩实体的输入流
- inputStream = zipFile.getInputStream(entry);
- fileOut = new FileOutputStream(file);
- int length = 0;
- //将实体写到本地文件中去
- while ((length = inputStream.read(buf)) > 0) {
- fileOut.write(buf, 0, length);
- }
- fileOut.close();
- inputStream.close();
- }
- }
- zipFile.close();
- //解压完后将原压缩文件删除
- File zipfile = new File(unZipfile);
- if(zipfile.exists()){
- zipfile.delete();
- }
- } catch (IOException ioe) {
- ioe.printStackTrace();
- }
- }
- /**
- * 一个文件夹压缩
- * 压缩文件夹
- * @param filepath
- * @param savepath
- * @throws Exception
- */
- public static void toZip(String filepath,String savepath) throws Exception{
- File file = new File(filepath);
- if(file.exists()){
- //判断导出路径是否为空,如果为空,则将压缩包生成到当前路径下
- if(StringUtils.isBlank(savepath)){
- savepath = filepath+".zip";
- }else{
- savepath = savepath+".zip";
- }
- ZipOutputStream outPut = new ZipOutputStream(new FileOutputStream(new File(savepath)));
- outPut.setEncoding("GBK");//设置编码
- createZip(outPut,file.listFiles(),null);
- outPut.flush();
- outPut.close();
- }else{
- //not found
- throw new RuntimeException("Err :not found file exception:"+filepath);
- }
- }
- private static void createZip(org.apache.tools.zip.ZipOutputStream outPut,File[] listFiles,String fuPath) throws Exception {
- for(File f : listFiles){
- String name = fuPath==null?f.getName():fuPath+"/"+f.getName();;
- if(f.isDirectory()){
- outPut.putNextEntry(new ZipEntry(name+"/"));
- createZip(outPut,f.listFiles(),name);
- }else{
- outPut.putNextEntry(new ZipEntry(name));
- InputStream is = new FileInputStream(f);
- byte[] bys = new byte[1024];
- int len = 0;
- while((len = is.read(bys))!=-1)
- outPut.write(bys, 0, len);
- is.close();
- outPut.flush();
- }
- }
- }
- /*
- * 复制文件 只能使复制文件,不能复制文件夹
- */
- public static void fileChannelCopy(File fromfile, File tofile) {
- FileInputStream fi = null;
- FileOutputStream fo = null;
- FileChannel in = null;
- FileChannel out = null;
- try {
- fi = new FileInputStream(fromfile);
- fo = new FileOutputStream(tofile);
- in = fi.getChannel();//得到对应的文件通道
- out = fo.getChannel();//得到对应的文件通道
- in.transferTo(0, in.size(), out);//连接两个通道,并且从in通道读取,然后写入out通道
- } catch (IOException e) {
- e.printStackTrace();
- } finally {
- try {
- fi.close();
- in.close();
- fo.close();
- out.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- }
- }
- }</span>