SpringBoot JackSon全局配置

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package com.nxe.business.bailian.bi.config;   import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.JsonInclude; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.*; import com.fasterxml.jackson.datatype.jdk8.Jdk8Module; import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule; import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer; import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer; import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer; import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer; import com.nex.bu1.json.JacksonEx; import com.nex.bu1.util.DateEx; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration;   import java.io.IOException; import java.text.SimpleDateFormat; import java.time.LocalDate; import java.time.LocalDateTime;   /**  * jackson 全局配置  * @author Yungui.Zheng  * @date 2020-11-05  */ @Configuration public class CustomNullValueSerializerConfig {       @Bean     public ObjectMapper objectMapper() {         final ObjectMapper mapper = new ObjectMapper();           mapper.enable(MapperFeature.USE_STD_BEAN_NAMING);         mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);         mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);         mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);         mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);           // Date         mapper.setDateFormat(new SimpleDateFormat(DateEx.FMT_YMD_HMS));         // LocalDate         JavaTimeModule javaTimeModule = new JavaTimeModule();         javaTimeModule.addSerializer(                 LocalDate.class, new LocalDateSerializer(DateEx.formatter(DateEx.FMT_YMD)));         javaTimeModule.addDeserializer(                 LocalDate.class, new LocalDateDeserializer(DateEx.formatter(DateEx.FMT_YMD)));         // LocalDateTime         javaTimeModule.addSerializer(                 LocalDateTime.class, new LocalDateTimeSerializer(DateEx.formatter()));         javaTimeModule.addDeserializer(                 LocalDateTime.class, new LocalDateTimeDeserializer(DateEx.formatter()));           mapper.registerModule(javaTimeModule);         mapper.registerModule(new Jdk8Module());         return mapper;     }   }

　　Jackson在spring框架中用来实现Json和对象的相互转化，通过自定义配置实现对应转化需求