本来是写到spaces live上的，可是代码的显示效果确实不怎么好看。在javaeye上试了试代码显示的顺眼多了。
今天写了个用java压缩的功能，可以实现对文件和目录的压缩。
由于java.util.zip.ZipOutputStream有中文乱码问题，所以采用org.apache.tools.zip.ZipOutputStream。
以下是代码：
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); } } } 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); } }}
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。
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(); } } 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"); } }
相关资源：java 生成zip压缩文件
