java工具类解压缩zip和rar

短命女 2023-05-28 09:49 22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>

![在这里插入图片描述][20200325173702796.png]

[20200325173702796.png]: /images/20230528/199a506e647044b38975da42ba0e5583.png