[英]How to change the response structure with Jackson on Spring-boot REST
我正在使用Spring Boot REST,我想在序列化過程中更改JSON響應的結構。 我有以下型號:
標題.java
@Entity
public class Title {
private Short id;
private String name;
private Collection<TitleCelebrity> titleCelebrities;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
public Short getId() {
return id;
}
public void setId(Short id) {
this.id = id;
}
@Basic
@Column(name = "name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@OneToMany(mappedBy = "title")
public Collection<TitleCelebrity> getTitleCelebrities() {
return titleCelebrities;
}
public void setTitleCelebrities(Collection<TitleCelebrity> titleCelebrities) {
this.titleCelebrities = titleCelebrities;
}
}
TitleCelebrity.java
@Entity
@Table(name = "title_celebrity")
public class TitleCelebrity {
private TitleCelebrityPK id;
private String characterName;
private Title title;
private TitleCelebrityType titleCelebrityType;
@EmbeddedId
@JsonIgnore
public TitleCelebrityPK getId() {
return id;
}
public void setId(TitleCelebrityPK id) {
this.id = id;
}
@Basic
@Column(name = "character_name")
public String getCharacterName() {
return characterName;
}
public void setCharacterName(String characterName) {
this.characterName = characterName;
}
@MapsId("titleByTitleId")
@ManyToOne
@JoinColumn(name = "title_id", referencedColumnName = "id", nullable = false)
@JsonIgnore
public Title getTitle() {
return title;
}
public void setTitle(Title title) {
this.title = title;
}
@MapsId("titleCelebrityTypeByTitleCelebrityTypeId")
@ManyToOne
@JoinColumn(name = "title_celebrity_type_id", referencedColumnName = "id", nullable = false)
public TitleCelebrityType getTitleCelebrityType() {
return titleCelebrityType;
}
public void setTitleCelebrityType(TitleCelebrityType titleCelebrityType) {
this.titleCelebrityType = titleCelebrityType;
}
}
TitleCelebrityType.java
@Entity
@Immutable
@Table(name = "title_celebrity_type")
public class TitleCelebrityType {
private Short id;
private String name;
private Collection<TitleCelebrity> titleCelebrities;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
public Short getId() {
return id;
}
public void setId(Short id) {
this.id = id;
}
@Basic
@Column(name = "name")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@OneToMany(mappedBy = "titleCelebrityType")
@JsonIgnore
public Collection<TitleCelebrity> getTitleCelebrities() {
return titleCelebrities;
}
public void setTitleCelebrities(Collection<TitleCelebrity> titleCelebrities) {
this.titleCelebrities = titleCelebrities;
}
}
因此,當我請求獲取標題時,JSON響應如下所示:
{
"id": 1,
"name": "Vertigo",
"titleCelebrities": [
{
"characterName": "John 'Scot",
"titleCelebrityType": {
"id": 1,
"name": "Cast"
}
},
{
"characterName": "Madeleine ",
"titleCelebrityType": {
"id": 1,
"name": "Cast"
}
},
{
"characterName": "a",
"titleCelebrityType": {
"id": 2,
"name": "Director"
}
},
{
"characterName": "b",
"titleCelebrityType": {
"id": 3,
"name": "Writer"
}
},
{
"characterName": "c",
"titleCelebrityType": {
"id": 3,
"name": "Writer"
}
}
]
}
反正有沒有更改POJO類(模型)使其看起來像這樣嗎?
{
"id": 1,
"name": "Vertigo",
"titleCelebrities": [
{
"cast": {
"characterName": "John 'Scot",
"characterName": "Madeleine ",
},
"director": {
"characterName": "a",
},
"writer": {
"characterName": "b",
"characterName": "c",
}
},
]
}
您可以為您的實體創建自己的序列化器。
對我來說,最好的方法是使用您需要從實體中獲得的屬性來創建DTO類。
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