package com.bbu.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * 文件壓縮工具類
 * 
 * @author code_now
 */
public class ZipUtils {
	
	/**
	 * 生成壓縮文件
	 * @param fileList	存放所有壓縮源文件
	 * @param zipFile	壓縮后文件
	 * @param myMap	key-文件壓縮前名稱，value-文件壓縮后在壓縮包中的名稱
	 * @throws Exception
	 */
	public static void createFileZip(List<File> fileList, File zipFile, Map<String, String> myMap) throws Exception{
		if(fileList.size()>0){
			byte[] buf = new byte[1024];
			try {
				ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));
				for(File file:fileList){
					FileInputStream in = new FileInputStream(file);  
					out.putNextEntry(new ZipEntry((String) myMap.get(file.getName())));
					int len;  
					while ((len = in.read(buf)) > 0) {  
						out.write(buf, 0, len);  
					}  
					out.closeEntry();  
					in.close();
					file.delete();// 寫進(jìn)壓縮文件后，刪除臨時(shí)目錄中的源文件
				}
				out.close();
			} catch (IOException e) {
				throw new Exception("文件壓縮失??！" + e.getMessage());
			}  
		}
	}
}

package com.bbu.test;

import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;

import com.bbu.utils.ZipUtils;

public class TestCreateZip {
	
	Log logger = LogFactory.getLog(getClass());
	
	@Test
	public void createZipTest() {
		
		// 源文件存儲路徑
		String srcPath = this.getClass().getClassLoader().getResource("").getPath();
		// 壓縮包存儲路徑
		String desPath = "D:/zipfile/";
		// 用于臨時(shí)存放所有的壓縮文件
		List<File> fileList = new ArrayList<File>();
		// key-文件壓縮前名稱，value-文件壓縮后在壓縮包中的名稱
		Map<String,String> myMpa = new HashMap<String,String>();
		
		// 放入文件test.pdf
		String testPdf = srcPath + "test.pdf";
		File testPdfFile =new File(testPdf); 
		myMpa.put(testPdfFile.getName(), "newName.pdf"); 
		fileList.add(testPdfFile);
		// 放入文件test.docx
		String testDocx = srcPath + "test.docx"; 
		File testDocxFile =new File(testDocx);  
		myMpa.put(testDocxFile.getName(), "newName.docx"); 
 		fileList.add(testDocxFile);
 		
		// 生成壓縮包zip文件
		File zipFile = new File(desPath + File.separator+System.currentTimeMillis()+".zip");
		logger.info(zipFile);// 打印壓縮包文件全路徑
		
		try {
			// 調(diào)用壓縮工具進(jìn)行壓縮
			ZipUtils.createFileZip(fileList, zipFile, myMpa);
			logger.info("壓縮成功！");
		} catch (Exception e) {
			logger.info("壓縮失??！", e);
		}
	}
}