java简单实现搜索指定后缀文件

package sb_eclipse;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;

public class ScanSuffix {
    private static int ScanSuffixCount = 0;
    private static ArrayList<String> ScanSuffixFiles = new ArrayList<String>();
    
    
    public static void ScanSuffix(String path, String suffix) {
        File file,tempFile;
        file = new File(path);
        if (! file.isDirectory()) {
            return ;
        }
        if (suffix.isEmpty()) {
            return ;
        }
        
        String[] fileList = file.list();
        for(String fileName : fileList) {
            tempFile = new File(path + "\" + fileName);
            if (tempFile.isDirectory()) {
                ScanSuffix(path + "\" + fileName, suffix);
            }
            if (tempFile.isFile()) {
                String[] splitFileName = fileName.split("\.");
                String ext = splitFileName[splitFileName.length - 1];
                if (ext.equals(suffix)) {
                    ScanSuffixCount += 1;
                    ScanSuffixFiles.add(path + "\" + fileName);
                }
            }
        }
    }
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String path = "F:\谷歌下载";
        String suffix = "php";
        System.out.println("开始查找...");
        long beginTime = System.currentTimeMillis()/1000;
        ScanSuffix(path, suffix);
        long endTime = System.currentTimeMillis()/1000;
        long time = endTime - beginTime;
        for (String fileName : ScanSuffixFiles) {
            System.out.println(fileName);
        }
        System.out.println("查找结束,耗时" + Long.toString(time) + "秒");
        System.out.println("在" + path + "目录下搜索后缀为" + suffix + "的数目有" + ScanSuffixCount + "个");
        
    }

}

代码很简单。核心就是一个递归处理