Springboot2中如何进行jackson Java8日期格式化处理

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import com.fasterxml.jackson.core.JsonGenerator;import com.fasterxml.jackson.core.JsonParser;import com.fasterxml.jackson.databind.*;import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;import org.apache.commons.lang3.StringUtils;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.Primary;import org.springframework.core.convert.converter.Converter;import org.springframework.lang.NonNull;import java.io.IOException;import java.time.LocalDate;import java.time.LocalDateTime;import java.time.LocalTime;import java.time.format.DateTimeFormatter;import java.util.TimeZone;/** * jackson2 日期序列化和反序列化处理 * */@Configurationpublic class DateConverterConfig {    private static final DateTimeFormatter DATETIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");    private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss");    /**     * jackson2 json序列化 null字段输出为空串     *     * @return     * @author zhaoyang10     */    @Bean    @Primary    //@ConditionalOnMissingBean(ObjectMapper.class)    public ObjectMapper serializingObjectMapper() {        ObjectMapper objectMapper = new ObjectMapper();                JavaTimeModule javaTimeModule = new JavaTimeModule();        //不再做统一处理 Springcloud2 fegin 会报日期格式化错误 格式化的日期字段直接加@JsonFormat 注解处理        //序列化日期格式        //javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer());        //javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer());        //javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer());        //反序列化日期格式        //javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer());        //javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer());        //javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer());        objectMapper.registerModule(javaTimeModule);                        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);                objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);        objectMapper.setTimeZone(TimeZone.getTimeZone("Asia/Shanghai"));        return objectMapper;    }    /**     * 日期序列化     */    public class LocalDateTimeSerializer extends JsonSerializer {        @Override        public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {            gen.writeString(value.format(DATETIME_FORMATTER));        }    }    /**     * 日期反序列化     */    public class LocalDateTimeDeserializer extends JsonDeserializer {        @Override        public LocalDateTime deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {            return LocalDateTime.parse(p.getValueAsString(), DATETIME_FORMATTER);        }    }    /**     * 日期序列化     */    public class LocalDateSerializer extends JsonSerializer {        @Override        public void serialize(LocalDate value, JsonGenerator gen, SerializerProvider serializers) throws IOException {            gen.writeString(value.format(DATE_FORMATTER));        }    }    /**     * 日期反序列化     */    public class LocalDateDeserializer extends JsonDeserializer {        @Override        public LocalDate deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {            return LocalDate.parse(p.getValueAsString(), DATE_FORMATTER);        }    }    /**     * 日期序列化     */    public class LocalTimeSerializer extends JsonSerializer {        @Override        public void serialize(LocalTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {            gen.writeString(value.format(TIME_FORMATTER));        }    }    /**     * 日期反序列化     */    public class LocalTimeDeserializer extends JsonDeserializer {        @Override        public LocalTime deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {            return LocalTime.parse(p.getValueAsString(), TIME_FORMATTER);        }    }    /**     * 接收前端入参日期的转换处理     *     * @return     */    @Bean    public Converter LocalDateTimeConvert() {        return new Converter() {            @Override            public LocalDateTime convert(@NonNull String source) {                LocalDateTime date = null;                if (StringUtils.isNotBlank(source)) {                    date = LocalDateTime.parse(source, DATETIME_FORMATTER);                }                return date;            }        };    }    @Bean    public Converter LocalDateConvert() {        return new Converter() {            @Override            public LocalDate convert(@NonNull String source) {                LocalDate date = null;                if (StringUtils.isNotBlank(source)) {                    date = LocalDate.parse(source, DATE_FORMATTER);                }                return date;            }        };    }    @Bean    public Converter LocalTimeConvert() {        return new Converter() {            @Override            public LocalTime convert(@NonNull String source) {                LocalTime time = null;                if (StringUtils.isNotBlank(source)) {                    time = LocalTime.parse(source, TIME_FORMATTER);                }                return time;            }        };    }}

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