突然想計(jì)算下項(xiàng)目行數(shù)，比較簡單瑰艘，直接上碼

/**
 * Description:
 * <p>計(jì)算項(xiàng)目代碼行數(shù)</p>
 * Create by hry
 */
public class Foo {

    private String [] ignore = {
            "ees-migration",
            //"ees-proxy",
            "ees-task",
    };

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    @Test
    public void foo(){

        String path = "e:/project/ry/dev";

        File srcfolder = new File(path);

        if(!srcfolder.exists()){
            return;
        }

        HashMap<String, File> objectObjectHashMap = new HashMap<>();
        Map<String, File> map = showAllFiles(srcfolder, objectObjectHashMap);
        assert map != null;
        logger.info("共有文件{}個(gè)",map.size());

        int num = 0;

        for(File file : map.values()){
            //int line = getLine(file, "http://", "/*", "*/", "*");
            int line = getLine(file);
            num += line;
        }

        logger.info("總行數(shù):{}",num);
    }

    /**
     * 獲取文件夾下所有文件
     * @param file      必須為一個(gè)文件夾
     * @param data      初始化為分配空間但空間內(nèi)無數(shù)據(jù)的map
     */
    private Map<String,File> showAllFiles(File file, Map<String, File> data){

        File[] files = file.listFiles();
        if(files == null || files.length == 0){
            return null;
        }

        for (File f : files) {
            if (f.isDirectory()) {
                showAllFiles(f,data);
            } else {
                data.put(f.getPath(),f);
            }
        }

        return data;
    }

    /**
     * 計(jì)算文件有效行數(shù)
     * 匹配指定格式文件（java）捶障，設(shè)置匹配規(guī)則Patton
     * 計(jì)算行數(shù)
     * patton: 文件行內(nèi)包含該字符的會被忽略
     * file  : 具體文件
     */
    private int getLine(File file,String...patton){

        if(!file.getName().endsWith(".java")){
            return 0;
        }

        int temp = 0;
        try {
            String line;
            BufferedReader fileReader = new BufferedReader(new FileReader(file));
            while ((line = fileReader.readLine()) != null){
                if(line.trim().length() == 0){
                    continue;
                }

                boolean flag = true;

                /**
                 * 計(jì)算行數(shù)
                 * 每行內(nèi)存在patton的字符則過濾僧须，不予計(jì)算
                 */
                if(patton != null && patton.length > 0){
                    List<String> strings = Arrays.asList(patton);
                    for(String p : strings){
                        if(line.contains(p)){
                            flag = false;
                            break;
                        }
                    }
                }

                if(flag){
                    temp ++;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return temp;
    }

}