java实现zip压缩文件/文件夹

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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：

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");  }  
}  

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