Question

压缩后我正在删除目录。我使用下面的代码来压缩和删除。

我可以压缩但无法删除文件夹。

任何人都可以指出我哪里做错了。

这是我正在使用的代码

    public class ZipDirectory {

        public static void main(String[] a) throws Exception {
            zipFolder("d:\conf2", "d:\conf2.zip");
          }

          static public void zipFolder(String srcFolder, String destZipFile) throws Exception {
            ZipOutputStream zip = null;
            FileOutputStream fileWriter = null;
            fileWriter = new FileOutputStream(destZipFile);
            zip = new ZipOutputStream(fileWriter);

            addFolderToZip("", srcFolder, zip);
            zip.flush();
            zip.close();

            delete(new File(srcFolder));
          }

          static private void addFileToZip(String path, String srcFile, ZipOutputStream zip)
              throws Exception {

            File folder = new File(srcFile);
            if (folder.isDirectory()) {
              addFolderToZip(path, srcFile, zip);
            } else {
              byte[] buf = new byte[1024];
              int len;
              FileInputStream in = new FileInputStream(srcFile);
              zip.putNextEntry(new ZipEntry(path + "/" + folder.getName()));
              while ((len = in.read(buf)) > 0) {
                zip.write(buf, 0, len);
              }
            }
          }

          static private void addFolderToZip(String path, String srcFolder, ZipOutputStream zip)
              throws Exception {
            File folder = new File(srcFolder);
            for (String fileName : folder.list()) {       
                addFileToZip(path + "/" + folder.getName(), srcFolder + "/" + fileName, zip);        
            }
          }

          static private void delete (File path){
            if( path.exists() ) {
                File[] files = path.listFiles();
                for(int i=0; i<files.length; i++) {
                     files[i].delete();                
                }
              }
            path.delete();
          }   

        }

Answer 1

请关闭 FileInputStream 的实例以使您的删除成功。

请在addFileToZip()方法中添加in.close()。

Answer 2

您没有收集您创建的 ZipOutputStream 对象。尝试在您的代码中替换以下方法。在这里，我在 try-with-resource 中创建了 ZipOutputStrean 对象并且它有效

static public void zipFolder(String srcFolder, String destZipFile) throws Exception {
    try(ZipOutputStream zip = new ZipOutputStream(new FileOutputStream(destZipFile)))
    {
        addFolderToZip("", srcFolder, zip);
        zip.flush();
        zip.close();

        delete(new File(srcFolder));
    }
}

Answer 3

跟踪删除方法后显示如下

07:58:12.734018754 0x2970500 mt.0 入口 >java/io/File.delete()Z 字节码方法，This = 0xfffc4810

07:58:12.734019108 0x2970500 mt.3 条目 >java/lang/System.getSecurityManager()Ljava/lang/SecurityManager;字节码静态方法

07:58:12.734019462 0x2970500 mt.9 退出

07:58:12.734019815 0x2970500 mt.0 入口 >java/io/File.isInvalid()Z 字节码方法，This = 0xfffc4810

On deleting the file, security manager refuse to delete the file because of already existing file descriptor associated to that. Close the Fileinput stream to avoid this condition.

删除 java 中的目录不是删除目录

Delete directory in java is not deleting directory

java

zip