paulwong

解压ZIP文件

在pom.xml中加入JAR包
<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
</dependency>

ZipUtil.java
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.util.UUID;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ZipUtil {
    
    private static Logger logger = LoggerFactory.getLogger(ZipUtil.class);
    
    public static void extractFolder(InputStream inputStream, String outputFolder) throws IOException 
    {
        ZipInputStream zis = null;
        try {

            Charset GBK = Charset.forName("GBK");
            zis = new ZipInputStream(inputStream, GBK);
            ZipEntry entry;

            while ((entry = zis.getNextEntry()) != null) {

                // Create a file on HDD in the destinationPath directory
                
// destinationPath is a "root" folder, where you want to extract your ZIP file
                String encoding = System.getProperty("file.encoding");
                logger.info("encoding:"+encoding); 
                
                String fileName = new String(entry.getName().getBytes("GBK"), encoding);
                File entryFile = new File(outputFolder, fileName);
//                File entryFile = new File(outputFolder, entry.getName());
                if (entry.isDirectory()) {

                    if (entryFile.exists()) {
                        logger.warn("Directory {0} already exists!", entryFile);
                    } else {
                        entryFile.mkdirs();
                    }

                } else {

                    // Make sure all folders exists (they should, but the safer, the better ;-))
                    if (entryFile.getParentFile() != null && !entryFile.getParentFile().exists()) {
                        entryFile.getParentFile().mkdirs();
                    }

                    // Create file on disk
                    if (!entryFile.exists()) {
                        entryFile.createNewFile();
                    }

                    // and rewrite data from stream
                    OutputStream os = null;
                    try {
                        os = new FileOutputStream(entryFile);
                        IOUtils.copy(zis, os);
                    } finally {
//                        os.close();
                        IOUtils.closeQuietly(os);
                        zis.closeEntry();
                    }
                }
            }
        } finally {
            IOUtils.closeQuietly(zis);
        }
    }
    
    public static void main(String [] args) throws IOException
    {
        final String INPUT_ZIP_FILE = "D:TESTING-FILE/ZIP/INPUT/应用.zip";
        String OUTPUT_FOLDER = "D:/TESTING-FILE/ZIP/OUTPUT";
        
        OUTPUT_FOLDER += File.separator + UUID.randomUUID().toString();
        
        InputStream inputStream = new FileInputStream(new File(INPUT_ZIP_FILE));
        
        extractFolder(inputStream, OUTPUT_FOLDER);
        
        /*File file = new File(OUTPUT_FOLDER);
        FileUtil.deleteFolder(file);
*/
    }

}

posted on 2014-10-29 17:34 paulwong 阅读(206) 评论(0)  编辑  收藏 所属分类: J2SE


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