http://blog.csdn.net/hbhgjiangkun/article/details/7282629?reload#comments
import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.ArrayList; import java.util.List; import org.apache.tools.zip.ZipEntry; import org.apache.tools.zip.ZipOutputStream; /** * 根据文件名称压缩文件 * @author * @version 1.0 * 20140804 14:51 * */ public class FileUtil { //文件打包下载 public static String downLoadFiles() throws Exception { ZipOutputStream zipOut=null; FileOutputStream fous=null; try { /**这个集合就是你想要打包的所有文件*/ List<File> files = new ArrayList<File>(); //压缩的文件url // String[] fileUrl=batchFileUrl.split(","); files.add(new File("f:/test/download/dw1.doc")); files.add(new File("f:/test/download/dw2.doc")); files.add(new File("f:/test/download/测试地址及密码.doc")); // for(int k=0;k<fileUrl.length;k++){ // //String src=DownloadFileUtil.convert(context.getRealPath("/temp")+"/"+fileUrl[k], "gb2312", "utf-8"); // files.add(new File(context.getRealPath("/temp")+"/"+fileUrl[k])); // } /**创建一个临时压缩文件, * 我们会把文件流全部注入到这个文件中 * 这里的文件你可以自定义是.rar还是.zip*/ String zipName=System.currentTimeMillis()+".zip"; //压缩文件保存地址 // String zipUrl=context.getRealPath("/downloadZip/zip")+zipName; String zipUrl="f:/test/download/"+zipName; File file = new File(zipUrl); if (!file.exists()){ file.createNewFile(); } // response.reset(); //创建文件输出流 fous = new FileOutputStream(file); /**打包的方法我们会用到ZipOutputStream这样一个输出流, * 所以这里我们把输出流转换一下*/ /** * 一定要用BufferedOutputStream 转换一下 * 要不就会出现这样的错误: * java.io.IOException: Write error at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:260) at org.apache.tools.zip.ZipOutputStream.writeOut(ZipOutputStream.java:881) at org.apache.tools.zip.ZipOutputStream.writeOut(ZipOutputStream.java:864) at org.apache.tools.zip.ZipOutputStream.writeCentralDirectoryEnd(ZipOutputStream.java:773) at org.apache.tools.zip.ZipOutputStream.finish(ZipOutputStream.java:318) at org.apache.tools.zip.ZipOutputStream.close(ZipOutputStream.java:515) at com.zyz.FileUtil.downLoadFiles(FileUtil.java:70) at com.zyz.FileUtil.main(FileUtil.java:132) */ zipOut=new ZipOutputStream(new BufferedOutputStream(fous)); /**这个方法接受的就是一个所要打包文件的集合, * 还有一个ZipOutputStream*/ zipFile(files, zipOut); zipOut.close(); fous.close(); //返回压缩文件路径 return zipUrl; }catch (Exception e) { e.printStackTrace(); }finally{ if(zipOut!=null){ zipOut.close(); } if(fous !=null){ fous.close(); } } return null; } /** * 把接受的全部文件打成压缩包 * @param List<File>; * @param org.apache.tools.zip.ZipOutputStream */ public static void zipFile(List<File> files,ZipOutputStream outputStream) { int size = files.size(); for(int i = 0; i < size; i++) { File file = (File) files.get(i); zipFile(file, outputStream); } } /** * 根据输入的文件与输出流对文件进行打包 * @param File * @param org.apache.tools.zip.ZipOutputStream */ public static void zipFile(File inputFile,ZipOutputStream ouputStream) { try { if(inputFile.exists()) { /**如果是目录的话这里是不采取操作的*/ if (inputFile.isFile()) { FileInputStream IN = new FileInputStream(inputFile); BufferedInputStream bins = new BufferedInputStream(IN, 512); //org.apache.tools.zip.ZipEntry ZipEntry entry = new ZipEntry(inputFile.getName()); ouputStream.putNextEntry(entry); // 向压缩文件中输出数据 int nNumber; byte[] buffer = new byte[512]; while ((nNumber = bins.read(buffer)) != -1) { ouputStream.write(buffer, 0, nNumber); } // 关闭创建的流对象 bins.close(); IN.close(); } else { try { File[] files = inputFile.listFiles(); for (int i = 0; i < files.length; i++) { zipFile(files[i], ouputStream); } } catch (Exception e) { e.printStackTrace(); } } } } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { try { downLoadFiles(); System.out.println("执行完:"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); }