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.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import java.io.IOException;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
/**
* @author jamesluozhiwei
* @date 2019/12/18
*/
@Configuration
public class LocalDateTimeSerializerConfig {
@Bean
public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {
return builder -> {
builder.serializerByType(LocalDateTime.class, new LocalDateTimeSerializer());
builder.deserializerByType(LocalDateTime.class,new LocalDateTimeDeserializer());
};
}
/**
* 序列化
*/
public static class LocalDateTimeSerializer extends JsonSerializer<LocalDateTime> {
@Override
public void serialize(LocalDateTime value, JsonGenerator gen, SerializerProvider serializers)
throws IOException {
if (value != null){
long timestamp = value.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
gen.writeNumber(timestamp);
}
}
}
/**
* 反序列化
*/
public static class LocalDateTimeDeserializer extends JsonDeserializer<LocalDateTime> {
@Override
public LocalDateTime deserialize(JsonParser p, DeserializationContext deserializationContext)
throws IOException {
long timestamp = p.getValueAsLong();
if (timestamp > 0){
return LocalDateTime.ofInstant(Instant.ofEpochMilli(timestamp),ZoneId.systemDefault());
}else{
return null;
}
}
}
}
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