package com.mes.utils;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.DeserializationFeature;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializationFeature;
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import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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/**
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* @Author : zhoush
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* @Date: 2025/9/8 15:23
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* @Description:
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*/
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public class JsonUtils {
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private static final ObjectMapper OBJECT_MAPPER = createObjectMapper();
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private static ObjectMapper createObjectMapper() {
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ObjectMapper mapper = new ObjectMapper();
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// 重要配置：忽略未知属性，避免解析失败
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mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
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// 其他有用配置
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mapper.configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, true);
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mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
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// 支持Java 8日期时间
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mapper.registerModule(new JavaTimeModule());
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mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
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return mapper;
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}
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/**
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* JSON字符串转对象
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*
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* @param json
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* @param clazz
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* @param <T>
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* @return
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*/
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public static <T> T fromJson(String json, Class<T> clazz) {
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try {
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return OBJECT_MAPPER.readValue(json, clazz);
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} catch (Exception e) {
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throw new RuntimeException("JSON转换失败", e);
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}
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}
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/**
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* JSON字符串转泛型对象（如List、Map等）
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*
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* @param json
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* @param typeReference
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* @param <T>
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* @return
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*/
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public static <T> T fromJson(String json, TypeReference<T> typeReference) {
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try {
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return OBJECT_MAPPER.readValue(json, typeReference);
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} catch (Exception e) {
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throw new RuntimeException("JSON转换失败", e);
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}
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}
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/**
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* 对象转JSON字符串
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*
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* @param obj
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* @return
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*/
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public static String toJson(Object obj) {
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try {
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return OBJECT_MAPPER.writeValueAsString(obj);
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} catch (Exception e) {
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throw new RuntimeException("对象转JSON失败", e);
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}
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}
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}
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