[英]How to filter all directories and sub directories of a directory with a name using apache-commons-io FileUtils.listFilesAndDirs?
I have to filter two particular folder paths recursively from a large directory which has many subdirectories using FileUtils.listFilesAndDirs method. 我必须使用FileUtils.listFilesAndDirs方法从一个包含许多子目录的大目录中递归过滤两个特定的文件夹路径。 So what filters I have to use.
那么我必须使用什么过滤器。
For example, I want to filter all the directory subdirectory paths of directories "results" & "logs" recursively. 例如,我想以递归方式过滤目录“results”和“logs”的所有目录子目录路径。
Thanks in advance. 提前致谢。
I have tried the nameFileFilter but it is filtering only for one directory, it's not filtering recursively. 我已经尝试过nameFileFilter,但它仅针对一个目录进行过滤,而不是递归过滤。
public static void main(String[] args) {
IOFileFilter filter1 =
FileFilterUtils.notFileFilter(FileFilterUtils.nameFileFilter("results",
null));
IOFileFilter filter2
=FileFilterUtils.notFileFilter(FileFilterUtils.nameFileFilter("logs",
null));
FileFilter filter = FileFilterUtils.and(filter1, filter2);
List<File> filteredFiles = (List<File>)FileUtils.listFilesAndDirs(new
File(args[0]), TrueFileFilter.INSTANCE, (IOFileFilter)fileFilter);
For( File file : filteredFiles) {
System.out.println(file.getAbsolutePath());
}
}
I need to filter all the directories and subdirectories with the name "results" & "logs" 我需要使用名称“results”和“logs”过滤所有目录和子目录
Following code help you to filtering file recursively. 以下代码可帮助您递归过滤文件。
public static void main(String[] args) {
IOFileFilter filter1 = FileFilterUtils.notFileFilter(FileFilterUtils.nameFileFilter("results"));
IOFileFilter filter2 = FileFilterUtils.notFileFilter(FileFilterUtils.nameFileFilter("logs"));
FileFilter filter = FileFilterUtils.andFileFilter(filter1, filter2);
Collection<File> filteredFiles = FileUtils.listFiles(new File("/media/data/test-file-io"),
TrueFileFilter.INSTANCE, (IOFileFilter) filter);
for (File file : filteredFiles) {
System.out.println(file.getAbsolutePath());
}
}
Here i use following dependency of common-io 在这里,我使用common-io的以下依赖
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
</dependency>
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