51 lines
1.3 KiB
Java
51 lines
1.3 KiB
Java
package com.yj.earth.common.util;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import lombok.extern.slf4j.Slf4j;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* Map与JSON互相转换工具类
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*/
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@Slf4j
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public class JsonMapConverter {
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private static final ObjectMapper objectMapper = new ObjectMapper();
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/**
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* 将 Map 转换为 JSON 字符串
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*/
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public static String mapToJson(Map<String, Object> map) {
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if (map == null || map.isEmpty()) {
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return "{}";
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}
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try {
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return objectMapper.writeValueAsString(map);
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} catch (JsonProcessingException e) {
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log.error("Map转JSON失败", e);
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return null;
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}
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}
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/**
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* 将 JSON 字符串转换为 Map
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*/
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public static Map<String, Object> jsonToMap(String json) {
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if (json == null || json.trim().isEmpty()) {
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return new HashMap<>(0);
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}
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try {
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return objectMapper.readValue(json, new TypeReference<Map<String, Object>>() {});
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} catch (Exception e) {
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log.error("JSON转Map失败、JSON内容: {}", json, e);
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return new HashMap<>(0);
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}
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}
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}
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