java工具类解压缩zip和rar-蒲公英云

java工具类解压缩zip和rar

短命女 2023-05-28 09:49 77阅读 0赞

解压缩java工具类

import com.github.junrar.Archive;
import com.github.junrar.rarfile.FileHeader;
import com.ramostear.unaboot.common.UnaBootConst;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import java.io.*;
import java.util.Enumeration;
/**
 * 压缩包工具类
 */
public class ArchiveUtils {
    public static void unzip(String source,String target) throws IOException {
        unzip(new File(source),target);
    }
    public static void unzip(File source,String target) throws IOException {
        InputStream inputStream = null;
        OutputStream outputStream = null;
        File targetFile = new File(target);
        if(!targetFile.exists()){
            targetFile.mkdirs();
        }
        ZipFile zipFile = new ZipFile(source);
        for(Enumeration entries = zipFile.getEntries();entries.hasMoreElements();){
            ZipEntry zipEntry = (ZipEntry) entries.nextElement();
            String entryName = zipEntry.getName();
            inputStream = zipFile.getInputStream(zipEntry);
            String outPath = (target+"/"+entryName).replaceAll("\\*","/");
            File file = new File(outPath.substring(0,outPath.lastIndexOf("/")));
            if(!file.exists()){
                file.mkdirs();
            }
            if(new File(outPath).isDirectory()){
                continue;
            }
            outputStream = new FileOutputStream(outPath);
            byte[] bytes = new byte[1024];
            int length;
            while ((length = inputStream.read(bytes))>0){
                outputStream.write(bytes,0,length);
            }
        }
        outputStream.flush();
        outputStream.close();
        inputStream.close();
        zipFile.close();
        System.gc();
    }
    public static void unRar(String source,String target) throws Exception{
        File targetFile = new File(target);
        if(!targetFile.exists()){
            targetFile.mkdirs();
        }
        Archive archive = new Archive(new File(source));
        if(archive != null){
            FileHeader header = archive.nextFileHeader();
            while(header != null){
                if(header.isDirectory()){
                    File file = new File(target+ File.separator+header.getFileNameString());
                    file.mkdirs();
                }else{
                    File file = new File(target+File.separator+header.getFileNameString());
                    try{
                        if(!file.exists()){
                            if(!file.getParentFile().exists()){
                                file.getParentFile().mkdirs();
                            }
                            file.createNewFile();
                        }
                        FileOutputStream outputStream = new FileOutputStream(file);
                        archive.extractFile(header,outputStream);
                        outputStream.close();
                    }catch (Exception ex){
                        ex.printStackTrace();
                    }
                }
                header = archive.nextFileHeader();
            }
        }
        archive.close();
    }
    public static void main(String[] args) throws Exception {
        //unRar("F:/web.rar", "F:/test"); 注意需要是rar4压缩
        unzip("F:/web.zip", "F:/test"); 
    }
}

依赖

<dependency>
   <groupId>com.github.junrar</groupId>
    <artifactId>junrar</artifactId>
    <version>1.0.1</version>
</dependency>
<dependency>
 <groupId>ant</groupId>
    <artifactId>ant</artifactId>
    <version>1.6.5</version>
</dependency>