zip方法 zipPath参数为保存zip的文件路径 srcPath参数为需要压缩的目录 在linux window上面测试无问题!主要是编码问题比较麻烦~要是有其他异常 请留言 或者 有什么更好的方法 欢迎给更多的意见  //zip zhe folder  void zip(String zipPath, String srcPath,javax.servlet.jsp.JspWriter out) throws Exception {  FileOutputStream output = null;  ZipOutputStream zipOutput = null;  try{  output = new FileOutputStream(zipPath);  zipOutput = new ZipOutputStream(output);  zipEntry(zipOutput,srcPath,srcPath,zipPath);  }catch(Exception e){  out.print(file zip error);  }finally{  if(zipOutput!=null)zipOutput.close();  }  out.print(zip ok zipPath);  }  //add the zip entry  void zipEntry(ZipOutputStream zipOs, String initPath,String filePath,String zipPath) throws Exception {  String entryName = filePath;  File f = new File(filePath);  if (f.isDirectory()){// ??  String[] files = f.list();  for(int i = 0; i files.length; i )  zipEntry(zipOs, initPath, filePath File.separator files[i],zipPath);  return;  }  String chPh = initPath.substring(initPath.lastIndexOf(/) 1);// ?????  int idx=initPath.lastIndexOf(chPh);  if (idx != -1) {  entryName = filePath.substring(idx);  }  ZipEntry entry;  entry = new ZipEntry(entryName);  File ff = new File(filePath);  if(ff.getAbsolutePath().equals(zipPath))return;  entry.setSize(ff.length());  entry.setTime(ff.lastModified());  //the CRC efficacy  entry.setCrc(0);  CRC32 crc = new CRC32();  crc.reset();  zipOs.putNextEntry(entry);  int len = 0;  byte[] buffer = new byte[2048];  int bufferLen = 2048;  FileInputStream input =null;  try{  input = new FileInputStream(filePath);  while ((len = input.read(buffer, 0, bufferLen)) != -1) {  zipOs.write(buffer, 0, len);  crc.update(buffer, 0, len);  }  }catch(Exception e){  }finally{  if(input!=null)input.close();  }  entry.setCrc(crc.getValue());  }