java jdk1.6实现zip解压

已于 2022-08-27 11:58:55 修改
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文章标签： java hibernate
于 2022-08-18 14:26:45 首次发布
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本文链接：https://blog.youkuaiyun.com/qq_42719682/article/details/126404901
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第一部分，入参两个，一个是为压缩包或文件，另一个是我自己的入参，可删除

@Override
	public void batchImportFileNew(String type, File file1) throws IOException {
		String checkFileName1 = file1.getName();
		 if(checkFileName1.indexOf("-")!=checkFileName1.lastIndexOf("-")) {
	        	checkFileName1 = checkFileName1.substring(checkFileName1.indexOf("-")+1, checkFileName1.lastIndexOf("-"));
			}
       String suffix1 = checkFileName1.substring(checkFileName1.lastIndexOf(".") + 1);
       //本地文件暂存路径
       String destPath = "D:\\tmsImage\\";
       List<File> fileListZip = new ArrayList<File>();
		if ("zip".equals(suffix1.toLowerCase()) ) {
			fileListZip = compresseZip(file1, destPath);
		}else if("rar".equals(suffix1.toLowerCase())){
			
		}else if("7z".equals(suffix1.toLowerCase())){
			
		}else {
			fileListZip.add(file1);
		}
		for (File file : fileListZip) {
			try {
				String checkFileName = file.getName();
				String ecNo = checkFileName.substring(0,checkFileName.indexOf("_"));
				String hqlLeg = "from TmsLeg t where t.ecNo=:ecNo";
				TmsLeg leg = (TmsLeg)commonDao.findByQueryUniqueResult(hqlLeg, "ecNo", ecNo);
				String hqlSign = "from TmsSign t where t.leg.id=:legId";
				TmsSign sign = (TmsSign)commonDao.findByQueryUniqueResult(hqlSign, "legId", leg.getId());
		        String suffix = checkFileName.substring(checkFileName.lastIndexOf(".") + 1);
		        if ("jpg".equals(suffix.toLowerCase())||
		        		"png".equals(suffix.toLowerCase())||
		        		"gif".equals(suffix.toLowerCase())||
		        		"jpeg".equals(suffix.toLowerCase())||
		        		"pdf".equals(suffix.toLowerCase())) {
		            String filetype=suffix.toLowerCase();
		        	this.batchImportFile(sign, type, file,filetype);
				}else {
					double width = 0;
					double height = 0;
					double scrWidth = 1024;//设置屏幕分辨率
					if(width > scrWidth){
						width = scrWidth;
					}
					TmsSignFile signFile = EntityFactory.getEntity(TmsSignFile.class);
					if (file != null) {
						//处理文件名
						String oldFileName =file.getName();
						String fileName=URL_Util.decoder(oldFileName);
						if(oldFileName.indexOf("-")!=oldFileName.lastIndexOf("-")) {
							fileName = fileName.substring(fileName.indexOf("-")+1, fileName.lastIndexOf("-"));
						}
						UploadUtils.createFile(file,fileName);
						String filePathStr = UploadUtils.getHtmlCode(file,fileName);
						signFile.setAttachmentName(fileName);
						signFile.setAttachmentPath(filePathStr);
						signFile.setType(type);
						signFile.setLeg(sign.getLeg());
						this.commonDao.store(signFile);
						String fileUrl ="<img width="+'"'+width+'"'+"height="+'"'+height+'"'+" src=\"*.tmsSignServlet?id=" + signFile.getId() + "\" ";
						fileUrl = fileUrl + " title=" + fileName + " />";
						signFile.setFileUrl(fileUrl);
						this.commonDao.store(signFile);
						
						/*更新操作人信息节点毫无意义,store的时候session里面回自动重新获取*/
						sign.setBeImportFile(true);
						/*首次上传影像时赋值*/
						if (sign.getSignFilesTime() == null) {
							sign.setSignFilesTime(new Date());
						}
						TmsOrder order = commonDao.load(TmsOrder.class, leg.getOrder().getId());
						if(TmsDispatchMethod.DOMEXPRESS.equals(order.getShipmentMethod())||TmsDispatchMethod.INTLEXPRESS.equals(order.getShipmentMethod())){
							sign.setReturnTime(sign.getSignFilesTime());
						}
						this.commonDao.store(sign);
					}
					//是否回单及时
					Calendar calendar = Calendar.getInstance();
					Date time = null;
					if(sign.getLeg().getArriveTime()!=null){
						time=sign.getLeg().getArriveTime();
					}else{
						time=sign.getLeg().getShipment().getArriveTime();
					}
					if(time==null){
						throw new BusinessException("运单及调度单实际到达时间均为空，无法计算是否回单及时");
					}
			        calendar.setTime(time);
			        calendar.set(Calendar.HOUR_OF_DAY, 24);
			        calendar.set(Calendar.MINUTE, 0);
			        calendar.set(Calendar.SECOND, 0);
			        calendar.add(Calendar.DATE, +6);
			        Date arriveTime = calendar.getTime();
			        if(sign.getSignFilesTime().before(arriveTime)){
			        	sign.setIsReceiptInTime(Boolean.TRUE);
			        }else{
			        	sign.setIsReceiptInTime(Boolean.FALSE);
			        }
				}
		        if(TmsSignStatus.RECEIVE.equals(sign.getStatus())){
		        	sign.setSignCheckResult(TmsSignCheckStatus.A);
		        }
		        if(sign.getCheckResult()!=null&&"reject".equals(sign.getCheckResult())){
					sign.setSignCheckResult(TmsSignCheckStatus.D);
				}
		        commonDao.store(sign);
			} catch (Exception e) {
				logger.error("importFileNew error",e);
				throw new BusinessException("上传失败，请联系系统管理员！");
			}
		}
		
	}

然后是zip版本的解压

public static List<File> compresseZip(File srcFile,String destDirPath) throws IOException {
		List<File> flieList = new ArrayList<File>();
	     long start = System.currentTimeMillis();
	     // 判断源文件是否存在
	     if (!srcFile.exists()) {
	         throw new RuntimeException(srcFile.getPath() + "所指文件不存在");
	     }
	     // 开始解压
	     ZipFile zipFile = null;
	     try {
	         zipFile = new ZipFile(srcFile);
	         Enumeration<?> entries = zipFile.entries();
	         while (entries.hasMoreElements()) {
	             ZipEntry entry = (ZipEntry) entries.nextElement();
	             System.out.println("解压" + entry.getName());
	             // 如果是文件夹，就创建个文件夹
	             if (entry.isDirectory()) {
	                 String dirPath = destDirPath + "/" + entry.getName();
	                 File dir = new File(dirPath);
	                 dir.mkdirs();
	             } else {
	                 // 如果是文件，就先创建一个文件，然后用io流把内容copy过去
	                 File targetFile = new File(destDirPath + "/" + entry.getName());
	                 flieList.add(targetFile);
	                 // 保证这个文件的父文件夹必须要存在
	                 if(!targetFile.getParentFile().exists()){
	                     targetFile.getParentFile().mkdirs();
	                 }
	                 targetFile.createNewFile();
	                 // 将压缩文件内容写入到这个文件中
	                 InputStream is = zipFile.getInputStream(entry);
	                 FileOutputStream fos = new FileOutputStream(targetFile);
	                 int len;
	                 byte[] buf = new byte[1024];
	                 while ((len = is.read(buf)) != -1) {
	                     fos.write(buf, 0, len);
	                 }
	                 // 关流顺序，先打开的后关闭
	                 fos.close();
	                 is.close();
	             }
	         }
	         long end = System.currentTimeMillis();
	         System.out.println("解压完成，耗时：" + (end - start) +" ms");
	     } catch (Exception e) {
	         throw new RuntimeException("unzip error from ZipUtils", e);
	     } finally {
	         if(zipFile != null){
	             try {
	                 zipFile.close();
	             } catch (IOException e) {
	                 e.printStackTrace();
	             }
	         }
	     }
	     return flieList;
	}

zip的解压中，调用了多个方法，只有一个是解压有关的，我放在下面。

public void batchImportFile(TmsSign sign,String type,File file,String filetype) {
		StringBuffer stringBuffer = new StringBuffer();
		double width = 0;
		double height = 0;
		try{
			BufferedImage image  = null;
			if (!"pdf".equals(filetype)) {
				image = ImageIO.read(new File(file.getAbsolutePath())); 
				width = image.getWidth(); 
				height = image.getHeight(); 
			}
		}catch(IOException   e){
			throw new BusinessException("读取影像文件发生错误["+e.getMessage()+"],请确认上传的是有效的图片文件！");
		}
		if (!"pdf".equals(filetype)) {
			double scrWidth = 1024;//设置屏幕分辨率
			if(width > scrWidth){
				width = scrWidth;
			}
		}
		TmsSignFile signFile = EntityFactory.getEntity(TmsSignFile.class);
		if (file != null) {
			String fileName = batchGetImageName(sign, file);
			createFile(file, sign, fileName);
			getHtmlCode(stringBuffer, file, sign, fileName);
			signFile.setAttachmentName(fileName);
			signFile.setAttachmentPath(stringBuffer.toString());
			signFile.setType(type);
			signFile.setLeg(sign.getLeg());
			this.commonDao.store(signFile);
			String fileUrl = "";
			if ("pdf".equals(filetype)) {
				fileUrl ="<embed width='100%' height='100%' src=\"*.tmsSignPdfServlet?id=" + signFile.getId() + "\" ";
				fileUrl = fileUrl + " title=" + fileName + " />";
			}else {
				fileUrl ="<img width="+'"'+width+'"'+"height="+'"'+height+'"'+" src=\"*.tmsSignServlet?id=" + signFile.getId() + "\" ";
				fileUrl = fileUrl + " title=" + fileName + " />";
			}
			
			signFile.setFileUrl(fileUrl);
			this.commonDao.store(signFile);
			
			/*更新操作人信息节点毫无意义,store的时候session里面回自动重新获取*/
			sign.setBeImportFile(true);
			/*首次上传影像时赋值*/
			if (sign.getSignFilesTime() == null) {
				sign.setSignFilesTime(new Date());
			}
			TmsLeg leg = commonDao.load(TmsLeg.class, sign.getLeg().getId());
			TmsOrder order = commonDao.load(TmsOrder.class, leg.getOrder().getId());
			if(TmsDispatchMethod.DOMEXPRESS.equals(order.getShipmentMethod())||TmsDispatchMethod.INTLEXPRESS.equals(order.getShipmentMethod())){
				sign.setReturnTime(sign.getSignFilesTime());
			}
			this.commonDao.store(sign);
		}
		//是否回单及时
		Calendar calendar = Calendar.getInstance();
        calendar.setTime(sign.getLeg().getShipment().getArriveTime());
        calendar.set(Calendar.HOUR_OF_DAY, 24);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.add(Calendar.DATE, +6);
        Date arriveTime = calendar.getTime();
        if(sign.getSignFilesTime().before(arriveTime)){
        	sign.setIsReceiptInTime(Boolean.TRUE);
        }else{
        	sign.setIsReceiptInTime(Boolean.FALSE);
        }
	}

上面这个方法里，有个文件名的乱码处理，方法是下面这个。

private String batchGetImageName(TmsSign sign, File file) {
		String oldFileName = "";
		String fileName = "";
		try {
			/*需要对文件名进行URL转码*/
			oldFileName = URLDecoder.decode(file.getName(),"GBK");
			fileName = oldFileName;
			if (oldFileName.indexOf("-") != oldFileName.lastIndexOf("-")) {
				fileName = oldFileName.substring(oldFileName.indexOf("-") + 1,
						oldFileName.lastIndexOf("-"));
			}
		} catch (UnsupportedEncodingException e) {
			logger.error("getImageName异常",e);
		}
		return fileName;
	}

找到了好用的7z解压的代码，https://blog.youkuaiyun.com/qq_40955456/article/details/120361727
有机会再找rar的。

lonlay
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