JAVA操作ZIP文件 -

最新推荐文章于 2023-08-01 14:49:40 发布

monmobear053

最新推荐文章于 2023-08-01 14:49:40 发布

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本文链接：https://blog.youkuaiyun.com/monmobear053/article/details/26688485

本文介绍了一个使用Java实现将文件压缩为ZIP格式的方法，包括创建ZIP文件、检查输入文件并将其添加到ZIP文件中，同时使用CRC32进行校验。

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第一种:

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.compress…………………………………………………………………………来自：http://www.verydemo.com/demo_c89_i12918.html