Java读写YAML文件

    Writer writer;
    int rp, p;

    try {
        Map m1,m2,m3,m4;
        Yaml yaml = new Yaml();
        File file = new File("setting.yaml");

        //也可以将值转换为Map
        m1 = (Map) yaml.load(new FileInputStream(file));
        //通过map我们取值就可以了.
        m2 = (Map) m1.get("tunnels");
        m3 = (Map) m2.get("mc");
        m3.put("remote_port", 44444);
        m4 = (Map) m3.get("proto");
        m4.put("tcp", 33333);

        FileWriter fileWriter = new FileWriter(file);
        fileWriter.write(yaml.dump(m1));
        fileWriter.flush();
        fileWriter.close();

    } catch (IOException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }