package com.ard.sample.annotation.util;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.ard.sample.annotation.model.dto.AnnotationPointsDTO;
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import org.springframework.stereotype.Component;
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import java.util.List;
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@Component
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public class JsonSerializeUtil {
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private static final ObjectMapper objectMapper = new ObjectMapper();
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// 序列化：List<AnnotationPointsDTO> → byte[]
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public static byte[] serialize(List<AnnotationPointsDTO> points) throws JsonProcessingException {
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if (points == null) {
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return null;
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}
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String json = objectMapper.writeValueAsString(points);
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return json.getBytes();
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}
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// 反序列化：byte[] → List<AnnotationPointsDTO>
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public static List<AnnotationPointsDTO> deserialize(byte[] bytes) throws JsonProcessingException {
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if (bytes == null || bytes.length == 0) {
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return null;
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}
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String json = new String(bytes);
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return objectMapper.readValue(json,
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objectMapper.getTypeFactory().constructCollectionType(List.class, AnnotationPointsDTO.class));
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}
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}
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