因为项目要用到压缩、解压缩zip格式压缩包，只好自己封装一个。
废话少说，直接上代码。
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package com.mxzhe.demo.util; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; import org.apache.log4j.Logger; /** * @ClassName: ZipCompressor * @CreateTime Apr 28, 2013 1:12:16 PM * @author : Mayi * @Description: 压缩文件的通用工具类-采用java.util.zip实现，较复杂。 * */ public class ZipCompressor { private Logger logger = Logger.getLogger(ZipCompressor.class); static final int BUFFER = 8192; private File zipFile; /** * 压缩文件构造函数 * @param pathName 压缩的文件存放目录 */ public ZipCompressor(String pathName) { zipFile = new File(pathName); } /** 一次性压缩多个文件，文件存放至一个文件夹中 */ public static void ZipMultiFile(String filepath, String zippath) { try { File file = new File(filepath);// 要被压缩的文件夹 File zipFile = new File(zippath); InputStream input = null; ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile)); if (file.isDirectory()) { File[] files = file.listFiles(); for (int i = 0; i < files.length; ++i) { input = new FileInputStream(files[i]); zipOut.putNextEntry(new ZipEntry(file.getName() + File.separator + files[i].getName())); int temp = 0; while ((temp = input.read()) != -1) { zipOut.write(temp); } input.close(); } } zipOut.close(); } catch (Exception e) { e.printStackTrace(); } } /** * 执行压缩操作 * @param srcPathName 被压缩的文件/文件夹 */ public void compressExe(String srcPathName) { File file = new File(srcPathName); if (!file.exists()){ throw new RuntimeException(srcPathName + "不存在！"); } try { FileOutputStream fos = new FileOutputStream(zipFile); ZipOutputStream out = new ZipOutputStream(fos); String basedir = ""; compressByType(file, out, basedir); out.close(); } catch (Exception e) { e.printStackTrace(); logger.error("执行压缩操作时发生异常:"+e); throw new RuntimeException(e); } } /** * 判断是目录还是文件，根据类型（文件/文件夹）执行不同的压缩方法 * @param file * @param out * @param basedir */ private void compressByType(File file, ZipOutputStream out, String basedir) { System.out.println(file.getPath()+file.getName()); /* 判断是目录还是文件 */ if (file.isDirectory()) { logger.info("压缩：" + basedir + file.getName()); this.compressDirectory(file, out, basedir); } else { logger.info("压缩：" + basedir + file.getName()); this.compressFile(file, out, basedir); } } /** * 压缩一个目录 * @param dir * @param out * @param basedir */ 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 */ compressByType(files[i], out, basedir + dir.getName() + "/"); } } /** * 压缩一个文件 * @param file * @param out * @param basedir */ private void compressFile(File file, ZipOutputStream out, String basedir) { if (!file.exists()) { return; } try { InputStream input = new FileInputStream(file); out.putNextEntry(new ZipEntry(file.getPath())); int temp = 0; while((temp = input.read()) != -1){ out.write(temp); } input.close(); //out.close(); } catch (Exception e) { throw new RuntimeException(e); } } public static void main(String[] args){ ZipCompressor zc = new ZipCompressor("D:\\FILE_FTP\\药监码文件\\药监文件\\2015\\09\\07\\20150907111245.zip"); zc.compressExe("D:\\FILE_FTP\\药监码文件\\药监文件\\2015\\09\\07\\20150907111245\\"); System.out.println("zip压缩完成"); } } |