java使用commons.io的FileUtils进行文件拷贝

参考：

https://blog.csdn.net/maxiaokundage/article/details/40146981

https://blog.csdn.net/hardwin/article/details/7914610

https://blog.csdn.net/qq_42402854/article/details/83374559

官方api：

http://commons.apache.org/proper/commons-io/apidocs/org/apache/commons/io/FileUtils.html

maven引入依赖：

        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.5</version>
        </dependency>

相关api：

一、拷贝文件

copyFile(File srcFile, File destFile)：Copies a file to a new location preserving the file date.

copyFile(File srcFile, File destFile, boolean preserveFileDate)：Copies a file to a new location.

copyFile(File input, OutputStream output)：Copy bytes from a File to an OutputStream.

copyFileToDirectory(File srcFile, File destDir)：Copies a file to a directory preserving the file date.

copyFileToDirectory(File srcFile, File destDir, boolean preserveFileDate)：Copies a file to a directory optionally preserving the file date.

copyInputStreamToFile(InputStream source, File destination)：Copies bytes from an InputStream source to a file destination.

copyToDirectory(File src, File destDir)：Copies a file or directory to within another directory preserving the file dates.

copyToDirectory(Iterable<File> srcs, File destDir)：Copies a files to a directory preserving each file's date.

copyToFile(InputStream source, File destination)：Copies bytes from an InputStream source to a file destination.

copyURLToFile(URL source, File destination)：Copies bytes from the URL source to a file destination.

copyURLToFile(URL source, File destination, int connectionTimeout, int readTimeout)：Copies bytes from the URL source to a file destination.

二、拷贝目录及文件

copyDirectory(File srcDir, File destDir)：Copies a whole directory to a new location preserving the file dates.

copyDirectory(File srcDir, File destDir, boolean preserveFileDate)：Copies a whole directory to a new location.

copyDirectory(File srcDir, File destDir, FileFilter filter)：Copies a filtered directory to a new location preserving the file dates.

copyDirectory(File srcDir, File destDir, FileFilter filter, boolean preserveFileDate)：Copies a filtered directory to a new location.

copyDirectoryToDirectory(File srcDir, File destDir)：Copies a directory to within another directory preserving the file dates.

三、删除目录及文件

deleteDirectory(File directory)：Deletes a directory recursively.

deleteQuietly(File file)：Deletes a file, never throwing an exception.

forceDelete(File file)：Deletes a file.

四、清除目录

cleanDirectory(File directory)：Cleans a directory without deleting it.

例子：

    public  void CopeFile(String name) {
        String path = Constant.IMG_PATH;
        File srcFIle = new File(path);
        String editionPath = path + name;
        File targetFile = new File(editionPath);
        File[] files = srcFIle.listFiles();
        for (File item : files) {
            if (item.isFile()) {
                try {
                    FileUtils.copyFileToDirectory(item, targetFile);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void DeleteFile(String name) {
        String path = Constant.IMG_PATH;
        String editionPath = path + name;
        File targetFile = new File(editionPath);
        FileUtils.deleteQuietly(targetFile);
    }