使用ant实现zip压缩和解压缩 一

package com.ilucky.zip; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import org.apache.tools.zip.ZipEntry; import org.apache.tools.zip.ZipOutputStream; /** * @author IluckySi * @date 20140531 */ public class ZipUtil { public String code; public int buffer; public String srcPath; public String dstPath; public String getCode() { return code; } public void setCode(String code) { this.code = code; } public int getBuffer() { return buffer; } public void setBuffer(int buffer) { this.buffer = buffer; } public String getSrcPath() { return srcPath; } public void setSrcPath(String srcPath) { this.srcPath = srcPath; } public String getDstPath() { return dstPath; } public void setDstPath(String dstPath) { this.dstPath = dstPath; } public void startZip () { boolean next = true; if(new File(srcPath).exists() == false) { try { next = false; throw new Exception("源路径 " + srcPath + "不存在！"); } catch (Exception e) { e.printStackTrace(); } } String dstDir = dstPath.substring(0, dstPath.lastIndexOf("/")); if(new File(dstDir).exists() == false) { try { next = false; throw new Exception("目标路径" + dstDir + "不存在！"); } catch (Exception e) { e.printStackTrace(); } } if(next == false) { return; } File zip = null; FileOutputStream fos = null; BufferedOutputStream bos = null; ZipOutputStream zos = null; try { zip = new File(dstPath); fos = new FileOutputStream(zip); bos = new BufferedOutputStream(fos); zos = new ZipOutputStream(bos); zos.setEncoding(code); generateZip(srcPath, zos); } catch (Exception e) { System.out.println(e.toString()); } finally { try { if(zos != null) { zos.closeEntry(); zos.close(); zos = null; } if(bos != null) { bos.close(); bos = null; } if(fos != null) { fos.close(); fos = null; } } catch (IOException e) { System.out.println(e.toString()); } } } public void generateZip(String filePath, ZipOutputStream zos) { File file = new File(filePath); File[] files = null; try { if (file.isDirectory()) { files = file.listFiles(); } else if (file.isFile()) { files = new File[1]; files[0] = file; } for (int i = 0; files != null && i < files.length; i++) { //关键:zip节点文件名称. String fileName = files[i].getPath().substring(srcPath.lastIndexOf("/") + 1); if (files[i].isDirectory()) { System.out.println("开始压缩目录" + files[i].getPath()); zos.putNextEntry(new ZipEntry(fileName + "/")); generateZip(files[i].getPath(), zos); } else { FileInputStream fis = null; BufferedInputStream bis = null; try { System.out.println("开始压缩文件" + files[i].getPath()); zos.putNextEntry(new ZipEntry(fileName)); fis = new FileInputStream(files[i]); bis = new BufferedInputStream(fis); byte[] bytes = new byte[buffer]; int length = 0; while ((length = bis.read(bytes, 0, buffer)) != -1) { zos.write(bytes, 0, length); zos.flush(); } } catch (Exception e) { System.out.println(e.toString()); } finally { try { if(bis != null) { bis.close(); bis = null; } if(fis != null) { fis.close(); fis = null; } } catch (IOException e) { System.out.println(e.toString()); } } } } } catch (Exception e) { System.out.println(e.toString()); } } }