java读取文件夹下文件及txt内容

public class PositionController {

    // 读取txt内容

    public static String txt2String(File file) {

        StringBuilder result = new StringBuilder();

        try {

            BufferedReader br = new BufferedReader(new FileReader(file));// 构造一个BufferedReader类来读取文件

            String s = null;

            while ((s = br.readLine()) != null) {// 使用readLine方法，一次读一行

                result.append(System.lineSeparator() + s);

            }

            br.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

        return result.toString();

    }

    // 读取文件夹下所有文件名

    public static List getFile(File file) {

        List listLocal = new ArrayList<>();

        if (file != null) {

            File[] f = file.listFiles();

            if (f != null) {

                for (int i = 0; i < f.length; i++) {

                    getFile(f[i]);

                    listLocal.add(f[i]);

                }

            } else {

                // System.out.println(file);

            }

        }

        return listLocal;

    }

    public String getTxt(ModelMap map) throws FileNotFoundException {

            // 文件夹下每一个txt名

            String path = "D:/wode/TestReallyData/txt2/txt_all/";

            File all = new File(path);

            //将全部txt存到list中

            List allPath = getFile(all);

             // 读取txt内容 并转换成List

             for(int i = 0 ;i

                File file = new File(i);

                String content = txt2String(file);

             }

    　　}

}

 

转载于:https://www.cnblogs.com/gemeiyi/p/10845312.html