b2b-order-service/order-common/src/main/java/com/poyee/config/FeignDateConfig.java

package com.poyee.config;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import feign.codec.Decoder;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.cloud.openfeign.support.ResponseEntityDecoder;
import org.springframework.cloud.openfeign.support.SpringDecoder;
import org.springframework.context.annotation.Bean;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;

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

public class FeignDateConfig {
    private static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";

    @Bean
    public Decoder feignDecoder() {
        ObjectMapper objectMapper = new ObjectMapper();
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        // 配置 LocalDateTime 的反序列化
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern(DATE_FORMAT);
        javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(formatter));
        javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(formatter));
        objectMapper.registerModule(javaTimeModule);
        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        ObjectFactory<HttpMessageConverters> messageConverters = () -> {
            MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter(objectMapper);
            return new HttpMessageConverters(converter);
        };

        return new ResponseEntityDecoder(new SpringDecoder(messageConverters));
    }
}