无法读取 JSON：属性的设置器定义冲突

Question

当我第一次调用 API 时，我收到 JSON 响应，没有任何错误。

当我第二次调用 API 时，我收到：

 Could not read JSON: Conflicting setter definitions for property "zipCode": com.sfr.cacheaddress.api.model.Address#setZipCode(1 params) vs com.sfr.cacheaddress.api.model.Address#setZipCode(1 params) at [Source: (byte[])"{"@class":"com.sfr.cacheaddress.api.model.MetaAddress","address":{"id":"3525622624","streetNumber":5,"streetNumberComplement":"A","streetType":"RUE","streetName":"RUE DES PERRIERES","streetNumberAndName":"5 A RUE DES PERRIERES","zipCode":"35800","city":"ST BRIAC SUR MER","address":"5 A RUE DES PERRIERES, 35800 ST BRIAC SUR MER","inseeCode":"35256","enabled":false,"codeRivoli":"0611","matriculeVoie":"00676767"},"complementCount":1}"; line: 1, column: 11 ]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Conflicting setter definitions for property "zipCode": com.sfr.cacheaddress.api.model.Address#setZipCode(1 params) vs com.sfr.cacheaddress.api.model.Address#setZipCode(1 params) at [Source: (byte[])"{"@class":"com.sfr.cacheaddress.api.model.MetaAddress","address":{"id":"3525622624","streetNumber":5,"streetNumberComplement":"A","streetType":"RUE","streetName":"RUE DES PERRIERES","streetNumberAndName":"5 A RUE DES PERRIERES","zipCode":"35800","city":"ST BRIAC SUR MER","address":"5 A RUE DES PERRIERES, 35800 ST BRIAC SUR MER","inseeCode":"35256","enabled":false,"codeRivoli":"0611","matriculeVoie":"00676767"},"complementCount":1}"; line: 1, column: 11

获取 API：

 @GetMapping("streetNumber") public MetaAddress getAddressByIdRivoliStreetNumber(String code) { return addressService.findByRivoliStreetNumber(code); }

元地址.java：

 @Data @NoArgsConstructor @JsonIgnoreProperties(ignoreUnknown = true) public class MetaAddress { Address address; long complementCount; }

地址.java：

 @Data @NoArgsConstructor @JsonIgnoreProperties(ignoreUnknown = true) public final class Address implements Serializable { private String id; private String zipCode; private String city; //@JsonIgnore public void setZipCode(String zipCode) { this.zipCode = zipCode; } @JsonSetter public void setZipCode(String[] zipCode) { this.zipCode = zipCode[0]; } }

在反序列化期间，需要第二个setZipCode(String[] zipCode) （其中包含@JsonSetter ），我尝试将@JsonIgnore添加到第一个方法public void setZipCode(String zipCode)但问题仍然存在。

精度：使用Adress class （不是MetaAddres ）的其他 API 工作正常。 问题发生在我调用使用MetaAddress object 的 API

请问有人遇到同样的问题吗？

Answer 1

一种解决方案是删除缓存。 另一个更好的解决方案是通过删除其中一个或同时删除两个设置器来删除冲突的设置器，因为您已经在使用@Data注释。

如果您期望与addressService.findByRivoliStreetNumber(code)返回的 json 不同的邮政编码格式，例如 string 和字符串数组，那么您可以将两种甲酸盐作为不同的属性处理。

如果您有特殊原因这样做，请提及。 也许这种情况下有更好的设计处理。