[英]Kotlin - Could not write JSON: Conflicting getter definitions for property (HttpMessageNotWritableException)
Im getting the following error while trying to output a JSON response from a controller class. 我在尝试从控制器类输出JSON响应时收到以下错误。
org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Conflicting getter definitions for property "product_id": com.kd.hub.core.entities.PosProduct#getProductId(0 params) vs com.kd.hub.core.entities.PosProduct#getProductName(0 params);
org.springframework.http.converter.HttpMessageNotWritableException:无法编写JSON:属性“ product_id”的getter定义冲突:com.kd.hub.core.entities.PosProduct#getProductId(0 params)与com.kd.hub.core。 Entity.PosProduct#getProductName(0个参数); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Conflicting getter definitions for property "product_id": com.kd.hub.core.entities.PosProduct#getProductId(0 params) vs com.kd.hub.core.entities.PosProduct#getProductName(0 params) at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:296)
嵌套异常是com.fasterxml.jackson.databind.JsonMappingException:属性“ product_id”的获取方法定义冲突:com.kd.hub.core.entities.PosProduct#getProductId(0 params)与com.kd.hub.core.entities。 org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:296)上的PosProduct#getProductName(0个参数)
My Product.kt file 我的Product.kt文件
@Entity
@Table(name = "sm_pos_product")
data class PosProduct(
@Id @GeneratedValue(strategy = GenerationType.AUTO) @JsonProperty("product_id") var productId : UUID = UUID.randomUUID(),
@Column(name = "product_name") @JsonProperty("product_id") var productName : String ?= null,
@Column(name = "strength") @JsonProperty("strength") var strength : String? = null,
@Column(name = "manufacturer") @JsonProperty("manufacturer") var manufacturer : String? = null,
@Column(name = "display_name") @JsonProperty("display_name") var displayName : String? = null,
// Stock Keeping Units
@Column(name = "sku_identifier") @JsonProperty("sku_identifier") var skuName : String? = null,
@Column(name = "sku_id") @JsonProperty("sku_id") var skuID : String ?= null,
// Master Stock
@Column(name = "sellable_stock") @JsonProperty("sellable_stock") var sellableStock : Double ?= 0.0,
@Column(name = "returned_stock") @JsonProperty("returned_stock") var returnedStock : Double ?= 0.0,
@Column(name = "expired_stock") @JsonProperty("expired_stock") var expiredStock : Double ?= 0.0
);
You have a typo here: 您在这里有错字:
@Column(name = "product_name") @JsonProperty("product_id") var productName : String ?= null,
Should be @JsonProperty("product_name")
应该是
@JsonProperty("product_name")
You set the @JsonProperty
to "product_id" on two of your strings causing there to be conflicting names. 您在两个字符串
@JsonProperty
设置为“ product_id”,从而导致名称冲突。 You need to change one of them. 您需要更改其中之一。 The two affected variables are
受影响的两个变量是
@Id @GeneratedValue(strategy = GenerationType.AUTO) @JsonProperty("product_id") var productId : UUID = UUID.randomUUID(),
@Column(name = "product_name") @JsonProperty("product_id") var productName : String ?= null,
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