http://blog.csdn.net/lqclh502/article/details/8875320
For maven project:
<!-- http://mvnrepository.com/artifact/org.apache.ant/ant -->
<dependency>
<groupId>org.apache.ant</groupId>
<artifactId>ant</artifactId>
<version>1.8.2</version>
</dependency>
以下是代码:
- import java.io.BufferedInputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.util.zip.CRC32;
- import java.util.zip.CheckedOutputStream;
- import org.apache.log4j.Logger;
- import org.apache.tools.zip.ZipEntry;
- import org.apache.tools.zip.ZipOutputStream;
- /**
- * @ClassName: ZipCompressor
- * @CreateTime Apr 28, 2013 1:12:16 PM
- * @author : Mayi
- * @Description: 压缩文件的通用工具类-采用org.apache.tools.zip.ZipOutputStream实现,较复杂。
- *
- */
- public class ZipCompressor {
- private Logger logger = Logger.getLogger(ZipCompressor.class);
- static final int BUFFER = 8192;
- private File zipFile;
- /**
- * 压缩文件构造函数
- * @param pathName 压缩的文件存放目录
- */
- public ZipCompressor(String pathName) {
- zipFile = new File(pathName);
- }
- /**
- * 执行压缩操作
- * @param srcPathName 被压缩的文件/文件夹
- */
- public void compressExe(String srcPathName) {
- File file = new File(srcPathName);
- if (!file.exists()){
- throw new RuntimeException(srcPathName + "不存在!");
- }
- try {
- FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
- CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,new CRC32());
- ZipOutputStream out = new ZipOutputStream(cos);
- String basedir = "";
- compressByType(file, out, basedir);
- out.close();
- } catch (Exception e) {
- e.printStackTrace();
- logger.error("执行压缩操作时发生异常:"+e);
- throw new RuntimeException(e);
- }
- }
- /**
- * 判断是目录还是文件,根据类型(文件/文件夹)执行不同的压缩方法
- * @param file
- * @param out
- * @param basedir
- */
- private void compressByType(File file, ZipOutputStream out, String basedir) {
- /* 判断是目录还是文件 */
- if (file.isDirectory()) {
- logger.info("压缩:" + basedir + file.getName());
- this.compressDirectory(file, out, basedir);
- } else {
- logger.info("压缩:" + basedir + file.getName());
- this.compressFile(file, out, basedir);
- }
- }
- /**
- * 压缩一个目录
- * @param dir
- * @param out
- * @param basedir
- */
- private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
- if (!dir.exists()){
- return;
- }
- File[] files = dir.listFiles();
- for (int i = 0; i < files.length; i++) {
- /* 递归 */
- compressByType(files[i], out, basedir + dir.getName() + "/");
- }
- }
- /**
- * 压缩一个文件
- * @param file
- * @param out
- * @param basedir
- */
- private void compressFile(File file, ZipOutputStream out, String basedir) {
- if (!file.exists()) {
- return;
- }
- try {
- BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
- ZipEntry entry = new ZipEntry(basedir + file.getName());
- out.putNextEntry(entry);
- int count;
- byte data[] = new byte[BUFFER];
- while ((count = bis.read(data, 0, BUFFER)) != -1) {
- out.write(data, 0, count);
- }
- bis.close();
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
- }
- }
后来发现原来可以用ant中的org.apache.tools.ant.taskdefs.Zip来实现,更加简单。
- import java.io.File;
- import org.apache.tools.ant.Project;
- import org.apache.tools.ant.taskdefs.Zip;
- import org.apache.tools.ant.types.FileSet;
- /**
- * @ClassName: ZipCompressorByAnt
- * @CreateTime Apr 28, 2013 1:23:45 PM
- * @author : Mayi
- * @Description: 压缩文件的通用工具类-采用ant中的org.apache.tools.ant.taskdefs.Zip来实现,更加简单。
- *
- */
- public class ZipCompressorByAnt {
- private File zipFile;
- /**
- * 压缩文件构造函数
- * @param pathName 最终压缩生成的压缩文件:目录+压缩文件名.zip
- */
- public ZipCompressorByAnt(String finalFile) {
- zipFile = new File(finalFile);
- }
- /**
- * 执行压缩操作
- * @param srcPathName 需要被压缩的文件/文件夹
- */
- public void compressExe(String srcPathName) {
- File srcdir = new File(srcPathName);
- if (!srcdir.exists()){
- throw new RuntimeException(srcPathName + "不存在!");
- }
- Project prj = new Project();
- Zip zip = new Zip();
- zip.setProject(prj);
- zip.setDestFile(zipFile);
- FileSet fileSet = new FileSet();
- fileSet.setProject(prj);
- fileSet.setDir(srcdir);
- //fileSet.setIncludes("**/*.java"); //包括哪些文件或文件夹 eg:zip.setIncludes("*.java");
- //fileSet.setExcludes(...); //排除哪些文件或文件夹
- zip.addFileset(fileSet);
- zip.execute();
- }
- }
测试一下
- package net.szh.zip;
- public class TestZip {
- public static void main(String[] args) {
- ZipCompressor zc = new ZipCompressor("E:\\szhzip.zip");
- zc.compress("E:\\test");
- ZipCompressorByAnt zca = new ZipCompressorByAnt("E:\\szhzipant.zip");
- zca.compress("E:\\test");
- }
- }