网上查了许久,最后发现三种不错的方法: 1、jdk自带的包java.util.zip.ZipOutputStream,不足之处,文件(夹)名称带中文时, 出现乱码问题,实现代码如下: /** * 功能:把 sourceDir 目录下的所有文件进行 zip 格式的压缩,保存为指定 zip 文件 * @param sourceDir 如果是目录,eg:D:\\MyEclipse\\first\\testFile,则压缩目录下所有文件; * 如果是文件,eg:D:\\MyEclipse\\first\\testFile\\aa.zip,则只压缩本文件 * @param zipFile 最后压缩的文件路径和名称,eg:D:\\MyEclipse\\first\\testFile\\aa.zip */ public File doZip(String sourceDir, String zipFilePath) throws IOException { File file = new File(sourceDir); File zipFile = new File(zipFilePath); ZipOutputStream zos = null; try { // 创建写出流操作 OutputStream os = new FileOutputStream(zipFile); BufferedOutputStream bos = new BufferedOutputStream(os); zos = new ZipOutputStream(bos); String basePath = null; // 获取目录 if(file.isDirectory()) { basePath = file.getPath(); }else { basePath = file.getParent(); } zipFile(file, basePath, zos); }finally { if(zos != null) { zos.closeEntry(); zos.close(); } } return zipFile; } /** * @param source 源文件 * @param basePath * @param zos */ private void zipFile(File source, String basePath, ZipOutputStream zos) throws IOException { File[] files = null; if (source.isDirectory()) { files = source.listFiles(); } else { files = new File[1]; files[0] = source; } InputStream is = null; String pathName; byte[] buf = new byte[1024]; int length = 0; try{ for(File file : files) { if(file.isDirectory()) { pathName = file.getPath().substring(basePath.length() + 1) + "/"; zos.putNextEntry(new ZipEntry(pathName)); zipFile(file, basePath, zos); }else { pathName = file.getPath().substring(basePath.length() + 1); is = new FileInputStream(file); BufferedInputStream bis = new BufferedInputStream(is); zos.putNextEntry(new ZipEntry(pathName)); while ((length = bis.read(buf)) > 0) { zos.write(buf, 0, length); } } } }finally { if(is != null) { is.close(); } } } 2、使用org.apache.tools.zip.ZipOutputStream,代码如下, Java代码: - package net.szh.zip;
-
- 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.tools.zip.ZipEntry;
- import org.apache.tools.zip.ZipOutputStream;
-
- public class ZipCompressor {
- static final int BUFFER = 8192;
-
- private File zipFile;
-
- public ZipCompressor(String pathName) {
- zipFile = new File(pathName);
- }
-
- public void compress(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 = "";
- compress(file, out, basedir);
- out.close();
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
- }
-
- private void compress(File file, ZipOutputStream out, String basedir) {
- /* 判断是目录还是文件 */
- if (file.isDirectory()) {
- System.out.println("压缩:" + basedir + file.getName());
- this.compressDirectory(file, out, basedir);
- } else {
- System.out.println("压缩:" + basedir + file.getName());
- this.compressFile(file, out, basedir);
- }
- }
-
- /** 压缩一个目录 */
- 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 */
- compress(files[i], out, basedir + dir.getName() + "/");
- }
- }
-
- /** 压缩一个文件 */
- 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);
- }
- }
- }
3、可以用ant中的org.apache.tools.ant.taskdefs.Zip来实现,更加简单。
Java代码 - package net.szh.zip;
-
- import java.io.File;
-
- import org.apache.tools.ant.Project;
- import org.apache.tools.ant.taskdefs.Zip;
- import org.apache.tools.ant.types.FileSet;
-
- public class ZipCompressorByAnt {
-
- private File zipFile;
-
- public ZipCompressorByAnt(String pathName) {
- zipFile = new File(pathName);
- }
-
- public void compress(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
Java代码 - 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");
- }
- }
|