如何限制JAVA中递归文件列表的深度?
有没有办法限制Java中递归文件列表的深度?如何限制JAVA中递归文件列表的深度?,java,file-listing,Java,File Listing,有没有办法限制Java中递归文件列表的深度? 我正在使用FileUtils.ListFileFile目录、String[]扩展名、ApacheCommons io的布尔递归来列出指定目录的文件,但此API返回此目录的所有项。一个简单的Google发现了这一点 /** * Construct an instance with a directory and a file filter and an optional * limit on the <i>depth</i>
我正在使用FileUtils.ListFileFile目录、String[]扩展名、ApacheCommons io的布尔递归来列出指定目录的文件,但此API返回此目录的所有项。一个简单的Google发现了这一点
/**
* Construct an instance with a directory and a file filter and an optional
* limit on the <i>depth</i> navigated to.
* <p>
* The filters control which files and directories will be navigated to as part
* of the walk. This constructor uses {@link FileFilterUtils#makeDirectoryOnly(IOFileFilter)}
* and {@link FileFilterUtils#makeFileOnly(IOFileFilter)} internally to combine the filters.
* A <code>null</code> filter means that no filtering should occur.
*
* @param directoryFilter the filter to apply to directories, null means visit all directories
* @param fileFilter the filter to apply to files, null means visit all files
* @param depthLimit controls how <i>deep</i> the hierarchy is
* navigated to (less than 0 means unlimited)
*/
protected DirectoryWalker(IOFileFilter directoryFilter, IOFileFilter fileFilter, int depthLimit) {
if (directoryFilter == null && fileFilter == null) {
this.filter = null;
} else {
directoryFilter = (directoryFilter != null ? directoryFilter : TrueFileFilter.TRUE);
fileFilter = (fileFilter != null ? fileFilter : TrueFileFilter.TRUE);
directoryFilter = FileFilterUtils.makeDirectoryOnly(directoryFilter);
fileFilter = FileFilterUtils.makeFileOnly(fileFilter);
this.filter = FileFilterUtils.or(directoryFilter, fileFilter);
}
this.depthLimit = depthLimit;
}
所以我想你需要设置depthLimit变量
参考:使用