java压缩文件成zip,rar

浅浅的花香味﹌ 2023-10-06 19:47 16阅读 0赞

package test3;
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.InputStream;
    import java.util.zip.ZipEntry;
    import java.util.zip.ZipOutputStream;
    
    public class Test3_2 {
        
    	public static void main(String[] args) {
        
    		zipMultiFile("E:/temp/a", "C:/Users/Administrator/Desktop/zipTest.rar", true);
    	}
    
    	/**
    	 * 压缩整个文件夹中的所有文件，生成指定名称的zip压缩包
    	 * 
    	 * @param filepath 文件所在目录
    	 * @param zippath  压缩后zip文件名称
    	 * @param dirFlag  zip文件中第一层是否包含一级目录，true包含；false没有
    	 */
    	public static void zipMultiFile(String filepath, String zippath, boolean dirFlag) {
        
    		try {
        
    			File file = new File(filepath);// 要被压缩的文件夹
    			File zipFile = new File(zippath);
    			ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
    			if (file.isDirectory()) {
        
    				File[] files = file.listFiles();
    				for (File fileSec : files) {
        
    					if (dirFlag) {
        
    						recursionZip(zipOut, fileSec, file.getName() + File.separator);
    					} else {
        
    						recursionZip(zipOut, fileSec, "");
    					}
    				}
    			}
    			zipOut.close();
    		} catch (Exception e) {
        
    			e.printStackTrace();
    		}
    	}
    
    	private static void recursionZip(ZipOutputStream zipOut, File file, String baseDir) throws Exception {
        
    		if (file.isDirectory()) {
        
    			File[] files = file.listFiles();
    			for (File fileSec : files) {
        
    				recursionZip(zipOut, fileSec, baseDir + file.getName() + File.separator);
    			}
    		} else {
        
    			byte[] buf = new byte[1024];
    			InputStream input = new FileInputStream(file);
    			zipOut.putNextEntry(new ZipEntry(baseDir + file.getName()));
    			int len;
    			while ((len = input.read(buf)) != -1) {
        
    				zipOut.write(buf, 0, len);
    			}
    			input.close();
    		}
    	}
    }