Class Request

src/main/java/org/example/tlv.java:54–110

    // 请求包结构
    public static class Request {
        private byte type;      // 1字节类型
        private int length;     // 4字节长度
        private byte[] data;    // 数据部分

        public Request(byte type, byte[] data) {
            this.type = type;
            this.data = data;
            this.length = data != null ? data.length : 0;
        }

        // 编码请求包（带加密）
        public byte[] encode() {
            // 加密数据
            byte[] encryptedData = xorProcess(data);

            ByteBuffer buffer = ByteBuffer.allocate(MAGIC_PREFIX.length + 5 + length);
            buffer.put(MAGIC_PREFIX);
            buffer.put(type);
            buffer.putInt(length);
            if (encryptedData != null && length > 0) {
                buffer.put(encryptedData);
            }
            return buffer.array();
        }

        // 解码请求包（带解密）
        public static Request decode(byte[] rawData) {
            if (!validate(rawData)) {
                return null;
            }
            ByteBuffer buffer = ByteBuffer.wrap(rawData);
            buffer.position(MAGIC_PREFIX.length);
            byte type = buffer.get();
            int length = buffer.getInt();

            // 读取并解密数据
            byte[] encryptedData = null;
            if (length > 0) {
                encryptedData = new byte[length];
                buffer.get(encryptedData);
                encryptedData = xorProcess(encryptedData);
            }

            return new Request(type, encryptedData);
        }

        // 获取原始数据
        public byte[] getData() {
            return data;
        }

        // 获取解密后的字符串数据
        public String getDataAsString() {
            return data != null ? new String(data, StandardCharsets.UTF_8) : "";
        }
    }