ZipInputStream解压页面上传的文件

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参考：

http://www.cnblogs.com/lrh-xl/p/5509005.html

 

 

http://www.cnblogs.com/DreamDrive/p/5760477.html

 

package 

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;

import javax.servlet.ServletContext;

import org.springframework.web.multipart.MultipartFile;

import com.google.common.collect.Maps;

public class TestZipFile {
	public static void main(String[] args) {
		uploadInvoceFile(null,null);
	}
	
	
	/**
	 * 解压页面上传的zip文件
	 * @param context
	 * @param invoiceFile
	 * @return
	 */
	static Map uploadInvoceFile(ServletContext context,MultipartFile multipartFile){
		Map resultMap = Maps.newHashMap();
		int sumOk = 0;
		int sumAll = 0;
		
		String savepath = DateUtils.getDate2Str("yyyy/MM/dd",new Date());
		String basepath = context.getRealPath("/");
		String path = basepath +"upload/invoice" + savepath+ "/";
		String zipPath = path  + multipartFile.getOriginalFilename();
		
		//确保目录文件存在
		File pathFile = new File(path);
		if(!pathFile.exists()){
			pathFile.mkdirs();
		}
		
		File zipTemp = new File(zipPath);
		ZipFile zipFile = null;
		try {
			multipartFile.transferTo(zipTemp);
			
			zipFile = new ZipFile(zipTemp);
			
			ZipInputStream zis = new ZipInputStream ( new FileInputStream(zipTemp) ) ;
			
			ZipEntry zipEntry = null ;
			byte[] bt = new byte[1024];
			//遍历zip中的文件
			while((zipEntry = zis.getNextEntry()) != null){
				//System.out.println(zipEntry.getName());//3379_1234.jpg
				//System.out.println(zipEntry.getMethod());//8
				//System.out.println(zipEntry.getSize());//-1
				sumAll ++;
				//校验是否为订单号
				String regex = "^[0-9]*$";
				String orderId = zipEntry.getName().substring(0, zipEntry.getName().indexOf("_"));
				if(zipEntry.isDirectory() || StringUtils.isEmpty(orderId) || !orderId.matches(regex)){
					continue;
				}
				String writecheckcode = zipEntry.getName().substring(zipEntry.getName().indexOf("_") + 1,zipEntry.getName().lastIndexOf("."));
				
				File oneInvoice = new File(path + zipEntry.getName());
				
				InputStream is = zipFile.getInputStream(zipEntry);
				OutputStream os = new FileOutputStream(oneInvoice) ;
				
				int len = 0;
				while((len = is.read(bt)) > 0){
					os.write(bt,0,len);
				}
				os.close();
				is.close();
				//文件保存的相对路径
				String shortPath = (path + zipEntry.getName()).replace(basepath, "/");
			}
			
			zis.close();
			zipFile.close();
		} catch (IllegalStateException e) {
			e.printStackTrace();
			resultMap.put("hasException",1);
		} catch (IOException e) {
			e.printStackTrace();
			resultMap.put("hasException",1);
		}  catch (Exception e) {
			e.printStackTrace();
			resultMap.put("hasException",1);
		} finally{
			//删除zipTemp
			zipTemp.delete();
			
			resultMap.put("sumAll",sumAll);
			resultMap.put("sumOk",sumOk);
			resultMap.put("sumFail",sumAll - sumOk);
			
		}
		
		return resultMap;
	}
}