小编rod*_*igo的帖子

我正在开发一个Android应用程序,每当用户启动此应用程序时,它将生成一个新的注册表(如果不存在),在更新现有数据时,我的应用程序将在用户节点中插入更多信息.

每次更新此节点时,所有其他信息都将丢失.

我的用户类

@IgnoreExtraProperties
public class User {

public String userID;
public String userName;
public String userMail;
public boolean active;

    public User() {}

    public User(String userID, String userName) {
        this.userID = userID;
        this.userName = userName;
    }

    public User(String userID, String userName, String userMail, boolean active) {
        this.userID = userID;
        this.userName = userName;
        this.userMail = userMail;
        this.active = active;

    }

    @Exclude
    public Map<String, Object> toMap() {
        HashMap<String, Object> result = new HashMap<>();
        result.put("user_id", userID);
        result.put("name", userName);
        result.put("email", userMail);
        result.put("active", active);

        return …