Java查询指定文件目录下指定文件名的文件的方法

importorg.slf4j.Logger;
importorg.slf4j.LoggerFactory;
importjava.io.File;
importjava.nio.file.DirectoryStream;
importjava.nio.file.Files;
importjava.nio.file.Path;
importjava.nio.file.Paths;
publicclassTestDirectoryFileMain {
privatestaticfinalLoggerLOGGER=LoggerFactory.getLogger(TestDirectoryFileMain.class);
publicstaticvoidmain(String []args) throwsException {
Stringpath="C:\\Windows\\System32";
PathsourcePath=Paths.get(path);
StringfilenameReg="kd_*_*.dll";
System.out.println("======Files.newDirectoryStream======");
longstart=System.currentTimeMillis();
try(DirectoryStream<Path>newStream=Files.newDirectoryStream(sourcePath,filenameReg)){
newStream.forEach(x-> {
System.out.println(x.getFileName().toString());
            });
        }
System.out.println(System.currentTimeMillis()-start);
System.out.println("======dir.listFiles()======");
longstart2=System.currentTimeMillis();
Filedir=newFile(path);
File[] files=dir.listFiles();
for(Filefile:files){
if(file.getName().matches("kd_[\\w]*_[\\w]*.dll")){
System.out.println(file.getName());
            }
        }
System.out.println(System.currentTimeMillis()-start2);
    }
}