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  • Java实现zip文件解压[到指定目录]

    package com.ljheee.ziptool.core;  
      
    import java.io.File;  
    import java.io.FileOutputStream;  
    import java.io.IOException;  
    import java.io.InputStream;  
    import java.nio.charset.Charset;  
    import java.util.Enumeration;  
    import java.util.zip.ZipEntry;  
    import java.util.zip.ZipFile;  
    /** 
     * 实现文件[夹]解压 
     * @author ljheee 
     * 
     */  
    public class UnZipFile {  
      
        /** 
         * 解压到指定目录 
         * @param zipPath   
         * @param descDir  
         */  
        public static void unZipFiles(String zipPath, String descDir) throws IOException {  
            unZipFiles(new File(zipPath), descDir);  
        }  
      
        /** 
         * 解压文件到指定目录 
         * 解压后的文件名,和之前一致 
         * @param zipFile   待解压的zip文件 
         * @param descDir   指定目录 
         */  
        @SuppressWarnings("rawtypes")  
        public static void unZipFiles(File zipFile, String descDir) throws IOException {  
              
            ZipFile zip = new ZipFile(zipFile,Charset.forName("GBK"));//解决中文文件夹乱码  
            String name = zip.getName().substring(zip.getName().lastIndexOf('\')+1, zip.getName().lastIndexOf('.'));  
              
            File pathFile = new File(descDir+name);  
            if (!pathFile.exists()) {  
                pathFile.mkdirs();  
            }  
              
            for (Enumeration<? extends ZipEntry> entries = zip.entries(); entries.hasMoreElements();) {  
                ZipEntry entry = (ZipEntry) entries.nextElement();  
                String zipEntryName = entry.getName();  
                InputStream in = zip.getInputStream(entry);  
                String outPath = (descDir + name +"/"+ zipEntryName).replaceAll("\*", "/");  
                  
                // 判断路径是否存在,不存在则创建文件路径  
                File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));  
                if (!file.exists()) {  
                    file.mkdirs();  
                }  
                // 判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压  
                if (new File(outPath).isDirectory()) {  
                    continue;  
                }  
                // 输出文件路径信息  
    //          System.out.println(outPath);  
      
                FileOutputStream out = new FileOutputStream(outPath);  
                byte[] buf1 = new byte[1024];  
                int len;  
                while ((len = in.read(buf1)) > 0) {  
                    out.write(buf1, 0, len);  
                }  
                in.close();  
                out.close();  
            }  
            System.out.println("******************解压完毕********************");  
            return;  
        }  
          
        //测试  
        public static void main(String[] args) {  
            try {  
                unZipFiles(new File("E:/Study/Java.zip"), "E:/Study/abc/");  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        }  
      
    }  

    完整工程实现界面化,通过界面完成对文件的压缩和解压,如下图:

    完整工程:https://github.com/ljheee/MyZip1.0

    转载于:https://my.oschina.net/u/2436852/blog/1553258

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  • 原文地址:https://www.cnblogs.com/twodog/p/12139156.html
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