服务器上zip 解压

1.编写 工具类 ZipUtil

package com.susoft.utils;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Enumeration;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
 

public class ZipUtils {
	
		private static final Logger logger = LoggerFactory.getLogger(ZipUtils.class);
	
	    private ZipUtils(){
	        // 私用构造主法.因为此类是工具类.
	    }
		/**
	     * 解压zip文件
	     * 
	     * @param zipFileName
	     *            待解压的zip文件路径，例如：c:\\a.zip
	     * 
	     * @param outputDirectory
	     *            解压目标文件夹,例如：c:\\a\
	     */
	    public static void unZip(String zipFileName, String outputDirectory)
	            throws Exception {
	        logger.debug("开始解压 ["+zipFileName+"] 到 ["+outputDirectory+"]");
	        org.apache.tools.zip.ZipFile zipFile = new org.apache.tools.zip.ZipFile(zipFileName);

	        try {

	            Enumeration<?> e = zipFile.getEntries();

	            org.apache.tools.zip.ZipEntry zipEntry = null;

	            createDirectory(outputDirectory, "");

	            while (e.hasMoreElements()) {

	                zipEntry = (org.apache.tools.zip.ZipEntry) e.nextElement();

	                logger.debug("解压：" + zipEntry.getName());

	                if (zipEntry.isDirectory()) {

	                    String name = zipEntry.getName();

	                    name = name.substring(0, name.length() - 1);

	                    File f = new File(outputDirectory + File.separator + name);

	                    f.mkdir();

	                    logger.debug("创建目录：" + outputDirectory + File.separator + name);

	                } else {

	                    String fileName = zipEntry.getName();

	                    fileName = fileName.replace('\\', '/');

	                    if (fileName.indexOf("/") != -1) {

	                        createDirectory(outputDirectory, fileName.substring(0,
	                                fileName.lastIndexOf("/")));

	                        fileName = fileName.substring(
	                                fileName.lastIndexOf("/") + 1,
	                                fileName.length());

	                    }

	                    File f = new File(outputDirectory + File.separator
	                            + zipEntry.getName());

	                    f.createNewFile();

	                    InputStream in = zipFile.getInputStream(zipEntry);

	                    FileOutputStream out = new FileOutputStream(f);

	                    byte[] by = new byte[1024];

	                    int c;

	                    while ((c = in.read(by)) != -1) {

	                        out.write(by, 0, c);

	                    }

	                    in.close();

	                    out.close();

	                }

	            }
	            logger.debug("解压 ["+zipFileName+"] 完成！");

	        } catch (Exception ex) {

	            System.out.println(ex.getMessage());

	        } finally {
	            zipFile.close();
	        }

	    }

	    /**
	     * 创建目录
	     * @author hezhao
	     * @Time   2017年7月28日 下午7:10:05
	     * @param directory
	     * @param subDirectory
	     */
	    private static void createDirectory(String directory, String subDirectory) {

	        String dir[];

	        File fl = new File(directory);

	        try {

	            if (subDirectory == "" && fl.exists() != true) {

	                fl.mkdir();

	            } else if (subDirectory != "") {

	                dir = subDirectory.replace('\\', '/').split("/");

	                for (int i = 0; i < dir.length; i++) {

	                    File subFile = new File(directory + File.separator + dir[i]);

	                    if (subFile.exists() == false)

	                        subFile.mkdir();

	                    directory += File.separator + dir[i];

	                }

	            }

	        } catch (Exception ex) {

	            System.out.println(ex.getMessage());

	        }

	    }  

	}

编写测试类

import org.junit.Test;

public class BeanTest {
	
	@Test
	public void test() {
		ZipUtils  zp = new ZipUtils ();
                zo.unZip(xxx,yyy);
	}