xml不映射到java pojo

Question

我正在嘗試將xml發布到具有以下類的spring rest控制器。 XML為Team對象正確映射，但沒有映射Player對象中的playerName。 playerName始終為null。 任何人都可以讓我知道這里出了什么問題。

我的播放器XML POJO

@XmlRootElement
@Entity(name = "player")
public class Player {

    @Id
    @GeneratedValue
    @Column(name = "player_id")
    private long player_id;

    @Column(unique=true , nullable = false)
    private String playerName;

    @ManyToOne
    @JoinColumn(name = "team_id")
    private Team team;

    public long getPlayer_id() {
        return player_id;
    }

    public void setPlayer_id(long player_id) {
        this.player_id = player_id;
    }


    public String getPlayerName() {
        return playerName;
    }

    public void setPlayerName(String playerName) {
        this.playerName = playerName;
    }

    public Team getTeam() {
        return team;
    }

    public void setTeam(Team team) {
        this.team = team;
    }


}

我的團隊XML POJO

@XmlRootElement
@Entity(name = "team")
public class Team {

    @Id
    @GeneratedValue
    @Column(name = "team_id")
    private long team_id;

    @Column(unique=true , nullable = false)
    private String name;

    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "team")
    private List<Player> players;

    public long getTeam_id() {
        return team_id;
    }

    public void setTeam_id(long team_id) {
        this.team_id = team_id;
    }


    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public List<Player> getPlayers() {
        return players;
    }

    public void setPlayers(List<Player> players) {
        this.players = players;
    }


}

我的Spring Rest Controller方法

@RequestMapping(value="/team/", method = RequestMethod.POST , headers="Accept=application/xml")
    @ResponseStatus(value = HttpStatus.OK)
    public void createTeam(@RequestBody Team team) throws Exception {
        for (Player player: team.getPlayers()){
            player.setTeam(team);
        }
        teamService.createTeam(team);
    }

我要發布到控制器的XML。

<team>
<name>GUj</name>
<players>
    <Player>
    <playerName>Raina</playerName> 
    </Player>
</players>
</team>

當我直接使用播放器xml調用播放器rest方法時，其工作原理。 以下是用於創建播放器和播放器xml的其余代碼。 它看起來唯一的映射問題是父xml pojo中的子xml pojo。

@RequestMapping(value="/player/", method = RequestMethod.POST , headers="Accept=application/xml")
    @ResponseStatus(value = HttpStatus.OK)
    public void createPlayer(@RequestBody Player player) throws Exception {
        playerService.createPlayer(player);
    }

播放器XML

<player>
<playerName>Yuvraj</playerName> 
</player>

附上我可以看到playerName為null的調試屏幕截圖

Answer 1

您需要在“播放器”列表上定義XmlElement 。

@XmlElement(name="players")
public List<Player> getPlayers() {
    return players;
}

希望這可以幫助！