GZ/nwyj/.svn/pristine/06/06fb73f777486071b07485e051d1d07dc8e57efc.svn-base

package com.sinosoft.am.zip;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Map;
import java.util.Properties;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

import com.sinosoft.common.upLoad.UpLoadFormServiceImpl;
import com.sinosoft.common.util.FilePathUtil;

public class DownZipFile {
	private static final Logger Log = Logger.getLogger(DownZipFile.class);
	//压缩包名称
	public static boolean filesToZip(String srcPath,String zipName, Map<String, String> fileNames) {
		
		boolean flag = false;
		if(fileNames.isEmpty()){
			return flag;
		}
		if (StringUtils.isEmpty(srcPath)) {
			return flag;
		}
		byte[] buffer = new byte[1024];
		try {
			srcPath = FilePathUtil.getUploadPath();
			Log.info("路径===："+srcPath);
			//压缩包路径
			String strZipPath = srcPath + File.separator + zipName;
			//判断压缩包是否存在
			File zipFile = new File(strZipPath);
			if (zipFile.exists()) {
				// 删除已存在的目标文件
				zipFile.delete();
			}	
			ZipOutputStream out = new ZipOutputStream(new FileOutputStream(strZipPath));
			//需要被压缩的文件
			File[] files = new File[fileNames.size()];
			int index=0;
			//遍历所有要压缩的文件，并赋值给files
			for (Map.Entry<String, String> entry : fileNames.entrySet()) {
				entry.getKey();
				entry.getValue();
				files[index] = new File(srcPath + File.separator+entry.getKey());
				index++;
			}
			//开始压缩
			for (int i = 0; i < files.length; i++) {
				FileInputStream fis = new FileInputStream(files[i]);
				out.putNextEntry(new ZipEntry(fileNames.get(files[i].getName())));
				// 设置压缩文件内的字符编码，不然会变成乱码
				out.setEncoding("GBK");
				int len;
				// 读入需要下载的文件的内容，打包到zip文件
				while ((len = fis.read(buffer)) > 0) {
					out.write(buffer, 0, len);
				}
				out.closeEntry();
				fis.close();
			}
			out.close();
		} catch (Exception e) {
			Log.error("文件压缩出错", e);
			return flag;
		}
		return true;
	}

}