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111 lines
3.3 KiB
111 lines
3.3 KiB
package com.qs.serve.common.util;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.alibaba.fastjson.serializer.SerializeConfig;
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import com.alibaba.fastjson.serializer.SimpleDateFormatSerializer;
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import com.alibaba.fastjson.support.config.FastJsonConfig;
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import com.fasterxml.jackson.annotation.JsonInclude;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JavaType;
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import com.fasterxml.jackson.databind.MapperFeature;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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import com.qs.serve.common.framework.interceptor.LocalDateTimeFormatSerializer;
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import lombok.experimental.UtilityClass;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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/**
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* Jackson json序列化和反序列化工具类
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* @Author JcYen
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* @Date 2019/6/3
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* @Version 1.0
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*/
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@UtilityClass
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public class JsonUtil {
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/**
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* jackson对象
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*/
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static final ObjectMapper MAPPER = new ObjectMapper();
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static {
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MAPPER.configure(MapperFeature.ACCEPT_CASE_INSENSITIVE_PROPERTIES, true);
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MAPPER.setSerializationInclusion(JsonInclude.Include.NON_NULL);
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MAPPER.registerModule(new JavaTimeModule());
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}
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/**
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* 将对象转换成json字符串。
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*/
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public static String objectToJson(Object data) {
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try {
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String string = MAPPER.writeValueAsString(data);
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return string;
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} catch (JsonProcessingException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 将json结果集转化为对象
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*
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* @param jsonData json数据
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* @param beanType 对象中的object类型
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*/
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public static <T> T jsonToPojo(String jsonData, Class<T> beanType) {
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try {
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T t = MAPPER.readValue(jsonData, beanType);
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return t;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 将json数据转换成pojo对象list
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*/
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public static <T> List<T> jsonToList(String jsonData, Class<T> beanType) {
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JavaType javaType = MAPPER.getTypeFactory().constructParametricType(List.class, beanType);
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try {
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List<T> list = MAPPER.readValue(jsonData, javaType);
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return list;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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public static Map<String, Object> jsonToMap(String jsonStr){
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Map<String, Object> json = JSONObject.parseObject(jsonStr, Map.class);
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return json;
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}
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public static Map<String,Object> objectToMap(Object object){
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// 创建SerializeConfig对象，并设置日期时间的格式
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SerializeConfig config = new SerializeConfig();
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LocalDateTimeFormatSerializer dateFormatSerializer = new LocalDateTimeFormatSerializer();
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config.put(LocalDateTime.class, dateFormatSerializer);
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String jsonString = JSON.toJSONString(object, config);
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Map<String,Object> map = JSONObject.parseObject(jsonString);
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return map;
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}
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public static <T> List<Map<String,Object>> listToMap(List<T> objects){
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List<Map<String,Object>> result = new ArrayList<>();
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for (T object : objects) {
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Map<String,Object> map = objectToMap(object);
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result.add(map);
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}
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return result;
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}
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}
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