Java在Spring中配置ObjectMapper

  • Z时代
  • 2024-01-10
  • 分类：问答

我的目标是配置objectMapper，使其仅序列化带有注释的元素@JsonProperty。

为了做到这一点，我按照下面的说明进行了说明，该说明说明了如何配置对象映射器。

我包括自定义描述objectmapper这里。

但是，当类NumbersOfNewEvents被序列化时，它仍包含json中的所有属性。

有人暗示吗？提前致谢

杰克逊1.8.0Spring3.0.5

CustomObjectMapper

public class CompanyObjectMapper extends ObjectMapper {
    public CompanyObjectMapper() {
        super();
        setVisibilityChecker(getSerializationConfig()
                .getDefaultVisibilityChecker()
                .withCreatorVisibility(JsonAutoDetect.Visibility.NONE)
                .withFieldVisibility(JsonAutoDetect.Visibility.NONE)
                .withGetterVisibility(JsonAutoDetect.Visibility.NONE)
                .withIsGetterVisibility(JsonAutoDetect.Visibility.NONE)
                .withSetterVisibility(JsonAutoDetect.Visibility.DEFAULT));
    }
}

servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
    <context:component-scan base-package="de.Company.backend.web" />
    <mvc:annotation-driven />
    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
                    <property name="objectMapper" ref="jacksonObjectMapper" />
                </bean>
            </list>
        </property>
    </bean>
    <bean id="jacksonObjectMapper" class="de.Company.backend.web.CompanyObjectMapper" />
</beans>
NumbersOfNewEvents
public class NumbersOfNewEvents implements StatusAttribute {
    public Integer newAccepts;
    public Integer openRequests;
    public NumbersOfNewEvents() {
        super();
    }
}

回答：

使用Spring Boot（1.2.4）和Jackson（2.4.6），以下基于注释的配置对我有用。

@Configuration
public class JacksonConfiguration {
    @Bean
    public ObjectMapper objectMapper() {
        ObjectMapper mapper = new ObjectMapper();
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        mapper.configure(MapperFeature.DEFAULT_VIEW_INCLUSION, true);
        return mapper;
    }
}

以上是 Java在Spring中配置ObjectMapper 的全部内容， 来源链接： utcz.com/qa/428052.html

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