苍穹外卖消息转换器

@Configuration  
@Slf4j  
public class WebMvcConfiguration extends WebMvcConfigurationSupport {  

    @Override  
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {  
//        super.extendMessageConverters(converters);  
        MappingJackson2HttpMessageConverter msgConverter = new MappingJackson2HttpMessageConverter();  
        msgConverter.setObjectMapper(new JacksonObjectMapper());  
        converters.add(0,msgConverter);  
        log.info("扩展消息转换器");  
    }

package org.hzl.json;  

import com.fasterxml.jackson.databind.DeserializationFeature;  
import com.fasterxml.jackson.databind.ObjectMapper;  
import com.fasterxml.jackson.databind.module.SimpleModule;  
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;  
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;  
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;  
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;  
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;  
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;  

import java.time.LocalDate;  
import java.time.LocalDateTime;  
import java.time.LocalTime;  
import java.time.format.DateTimeFormatter;  

import static com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES;  

/**  
 * 对象映射器:基于jackson将Java对象转为json，或者将json转为Java对象  
 * 将JSON解析为Java对象的过程称为 [从JSON反序列化Java对象]  
 * 从Java对象生成JSON的过程称为 [序列化Java对象到JSON]  
 */public class JacksonObjectMapper extends ObjectMapper {  

    public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";  
    //public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";  
    public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm";  
    public static final String DEFAULT_TIME_FORMAT = "HH:mm:ss";  

    public JacksonObjectMapper() {  
        super();  
        //收到未知属性时不报异常  
        this.configure(FAIL_ON_UNKNOWN_PROPERTIES, false);  

        //反序列化时，属性不存在的兼容处理  
        this.getDeserializationConfig().withoutFeatures(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);  

        SimpleModule simpleModule = new SimpleModule()  
                .addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))  
                .addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))  
                .addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)))  
                .addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))  
                .addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))  
                .addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)));  

        //注册功能模块 例如，可以添加自定义序列化器和反序列化器  
        this.registerModule(simpleModule);  
    }  
}