如何对此 Map<String, List<class>> 进行排序

Question

我有这张地图，其中包含姓名、姓氏和其他个人信息，例如：jhon:[doe];ann:[devil]我想要的是按字母顺序排列它们，但这种结构对我来说是新的。我怎样才能按字母顺序排列它们？这是我的代码 private String uid;    private String username;    private String fullName;    private String name;    private String lastname;    private String email;    private String phone;    private Map<String, List<PorticoProfile>> profiles;    public Map<String, List<PorticoProfile>> getProfiles() {        if (profiles == null) {            profiles = new LinkedHashMap<>();        }        return profiles;    }    public void setProfiles(Map<String, List<PorticoProfile>> profiles) {        this.profiles = profiles;    }    public void setFullName(String fullName) {        this.fullName = fullName;        if (fullName.contains(" ")){            String[] nameParts = fullName.split(" ");            this.name = nameParts[0];            this.lastname = nameParts[1];        }    }    @Override    public String toString(){        final String BREAK = System.getProperty("line.separator");        StringBuilder sb = new StringBuilder();        sb.append("uid: ").append(this.uid).append(BREAK);        sb.append("username: ").append(this.username).append(BREAK);        sb.append("fullname: ").append(this.fullName).append(BREAK);        sb.append("email: ").append(this.email).append(BREAK);        sb.append("phone: ").append(this.phone).append(BREAK);        if (this.getProfiles().size() > 0){            sb.append("profiles: ").append(this.profiles.keySet().stream().collect(Collectors.joining(", "))).append(BREAK);        }        return sb.toString();    }

Answer 1

尝试：

Map<String, List<MyClass>> sorted = map.entrySet()
        .stream()
        .sorted(Comparator.comparing(Map.Entry::getKey)) // sort by key
        .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));