[英]Convert entity property camel case to snake case in json in jhipster project
I am working with a project that is generated with jhipster. 我正在使用jhipster生成的项目。 It is a micro service architecture project. 这是一个微服务架构项目。
In my entity class properties are named with camel case. 在我的实体类中,属性以camel case命名。 So when I create a rest service it gives me json, where the json property names are as same as the entity properties. 因此,当我创建一个休息服务时,它给了我json,其中json属性名称与实体属性相同。
Entity class 实体类
@Entity
@Table(name = "ebook")
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
@Document(indexName = "ebook")
public class Ebook implements Serializable {
private Long id;
private String nameBangla;
private String nameEnglish;
Json response Json回应
{
"id": 0,
"nameBangla": "string",
"nameEnglish": "string"
}
I want that my entity property will camel case, But in json response it will snake case. 我想要我的实体属性将驼峰的情况,但在json响应它将蛇案。 That is I don't want to change my entity class but I want to change my json response like bellow 那是我不想改变我的实体类,但我想改变我的json响应,如下所述
{
"id": 0,
"name_bangla": "string",
"name_english": "string"
}
You have two possibilities: 你有两种可能性:
Explicit naming your properties: 明确命名您的属性:
@JsonProperty("name_bangla")
private String nameBangla;
@JsonProperty("name_english")
private String nameEnglish;
or changing how jackson (which is used for de/serialization) works: 或改变jackson(用于去/序列化)的工作原理:
Jackson has a setting called PropertyNamingStrategy.SNAKE_CASE
which you can set for the jackson objectmapper. Jackson有一个名为PropertyNamingStrategy.SNAKE_CASE
的设置,你可以为jackson objectmapper设置它。
So, you need to configure Jackson for that, eg by adding your own object mapper: 因此,您需要为此配置Jackson,例如通过添加您自己的对象映射器:
@Configuration
public class JacksonConfiguration {
@Bean
public Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder() {
return new Jackson2ObjectMapperBuilder().propertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE)
}
}
As far as I know, in older version of JHipster, there was already a JacksonConfiguration
to configure the JSR310 time module, but was removed later... 据我所知,在旧版JHipster中,已经有一个JacksonConfiguration
来配置JSR310时间模块,但后来被删除了......
Adding this to your application.yml should also work: 将此添加到您的application.yml也应该工作:
spring.jackson.property-naming-strategy=SNAKE_CASE
Also you can use annotation to define naming strategy per class. 您还可以使用注释来定义每个类的命名策略。
Little example in Kotlin: Kotlin的一个小例子:
@JsonNaming(PropertyNamingStrategy.SnakeCaseStrategy::class)
data class Specialization(val altUrl: String, val altId: Int, val altName: String)
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