public static Question getQuestionById(int id) {
    Question question = new Question();
    try {
      // a,b,c是参数
      String urlString = QMgetQuestionById_URL + "qid=" + id;

      URL url = new URL(urlString);
      // HttpURLConnection conn = (HttpURLConnection)

      InputStream in = url.openStream();

      DataInputStream din = new DataInputStream(in);

      question.Id = Integer.valueOf(din.readUTF());
      question.Poste = UserNetUtil.GetUserById(Integer.valueOf(din.readUTF()));
      question.Title = din.readUTF();
      question.Content = din.readUTF();
      question.Views = Integer.valueOf(din.readUTF());
      question.Replies = Integer.valueOf(din.readUTF());
      question.Solved = Boolean.valueOf(din.readUTF());

      int size = Integer.parseInt(din.readUTF());
      for (int i = 0; i < size; i++) {
        Answer answer = new Answer();
        answer.Id = Integer.valueOf(din.readUTF());
        answer.Poster = UserNetUtil.GetUserById(Integer.valueOf(din.readUTF()));
        answer.Title = din.readUTF(); // 获得标题
        answer.Content = din.readUTF(); // 获得内容
        answer.Views = Integer.valueOf(din.readUTF());
        answer.Votes = Integer.valueOf(din.readUTF());
        answer.PostDateTime = din.readUTF();
        answer.IsBestAns = Boolean.valueOf(din.readUTF());
        question.Answers.add(answer);
      }

      int tagSize = Integer.parseInt(din.readUTF());
      for (int j = 0; j < tagSize; j++) {
        question.Tags.add(din.readUTF().trim());
      }

      in.close();

    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
    return question;
  }
  public static List<Question> getUnanseredQuestion(int tagId, int pageNum, int queryType) {
    List<Question> list = new ArrayList<Question>();
    try {
      // a,b,c是参数
      String urlString =
          QMgetUnanseredQuestion_URL
              + "tagId="
              + tagId
              + "&pageNum="
              + pageNum
              + "&queryType="
              + queryType;
      URL url = new URL(urlString);
      // HttpURLConnection conn = (HttpURLConnection)

      InputStream in = url.openStream();

      DataInputStream din = new DataInputStream(in);

      int size = Integer.parseInt(din.readUTF());
      Log.e("getUnanseredQuestion", size + "");
      for (int i = 0; i < size; i++) {
        Question question = new Question();
        question.Id = Integer.parseInt(din.readUTF()); // 问题ID,UI中并不需要
        // question.FieldId = Integer.parseInt(din.readUTF());
        question.Poste = UserNetUtil.GetUserById(Integer.parseInt(din.readUTF()));
        question.Title = din.readUTF(); // 获得标题
        question.Content = din.readUTF(); // 获得内容
        question.Views = Integer.parseInt(din.readUTF()); // 获得浏览
        question.Replies = Integer.parseInt(din.readUTF()); // 获得回答数
        question.Solved = Boolean.valueOf(din.readUTF());

        int tagSize = Integer.parseInt(din.readUTF());
        for (int j = 0; j < tagSize; j++) {
          question.Tags.add(din.readUTF().trim());
        }

        list.add(question);
      }
      in.close();

    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
    return list;
  }