WxPay/src/main/java/com/ynxbd/common/helper/common/JsonHelper.java

package com.ynxbd.common.helper.common;


import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.TypeReference;
import com.alibaba.fastjson.serializer.PascalNameFilter;
import com.alibaba.fastjson.serializer.SerializerFeature;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.ObjectUtils;

import java.util.ArrayList;
import java.util.List;

/**
 * FastJson操作类
 */
@Slf4j
public class JsonHelper {

    public static <T> T copy(Object obj, Class<T> clazz) {
        String dataJson = JSON.toJSONString(obj);
        return JSON.parseObject(dataJson, clazz);
    }


    public static String toJsonString(Object data) {
        return JSON.toJSONString(data);
    }

    /**
     * 支持返回大写json
     *
     * @param data 需要转换实体
     * @return string
     */
    public static String toProJsonString(Object data) {
        return JSONObject.toJSONString(data, new PascalNameFilter(), SerializerFeature.WriteMapNullValue);
    }

    public static JSONObject parseObject(String data) {
        return JSON.parseObject(data);
    }

    public static <T> T parseObject(String data, Class<T> clazz) {
        return JSON.parseObject(data, clazz);
    }

    public static JSONArray parseArray(String data) {
        return JSON.parseArray(data);
    }

    public static <T> List<T> parseArray(String data, Class<T> clazz) {
        return JSON.parseArray(data, clazz);
    }

    public static <T> List<T> copyArray(Object data, Class<T> clazz) {
        if (data == null) {
            return new ArrayList<>();
        }
        String json = toJsonString(data);
        if (ObjectUtils.isEmpty(json)) {
            return new ArrayList<>();
        }
        return parseArray(json, clazz);
    }


    /**
     * fastJson反序列化Bean
     *
     * @param json  json
     * @param clazz 类型
     * @return bean
     */
    public static <T> T decodeBean(Object json, Class<T> clazz) {
        return decodeBean(toJsonString(json), clazz);
    }

    /**
     * fastJson反序列化Bean
     *
     * @param json  json
     * @param clazz 类型
     * @return bean
     */
    public static <T> T decodeBean(String json, Class<T> clazz) {
        return parseObject(json, clazz);
    }

    /**
     * fastJson反序列化List
     *
     * @param json  json
     * @param clazz 类型
     * @return List<T>
     */
    public static <T> List<T> decodeList(String json, Class<T> clazz) {
        return decode(json, new TypeReference<List<T>>(clazz) {
        });
    }


    /**
     * fastJson反序列化
     *
     * @param json          json
     * @param typeReference 类型
     * @return 反序列化后的值
     */
    private static <T> T decode(String json, TypeReference<T> typeReference) {
        try {
            return JSON.parseObject(json, typeReference);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 获取数组的第一个对象
     *
     * @param dataJson dataJson
     * @return jsonObj
     */
    public static JSONObject parseArrGetFirstJsonObj(String dataJson) {
        try {
            if (ObjectUtils.isEmpty(dataJson)) {
                return null;
            }
            JSONArray dataJsonArr = JSONObject.parseArray(dataJson);
            if (dataJsonArr.isEmpty()) {
                return null;
            }
            return dataJsonArr.getJSONObject(0);
        } catch (Exception e) {
            log.error(e.getMessage());
        }
        return null;
    }

    /**
     * 根据括号类型获取
     *
     * @param dataJson dataJson
     * @return jsonObj
     */
    public static JSONObject parseJsonObjByBracket(String dataJson) {
        try {
            if (ObjectUtils.isEmpty(dataJson)) {
                return null;
            }
            dataJson = dataJson.trim();
            String bracketType = dataJson.substring(0, 1); // 括号类型
            if ("[".equals(bracketType)) {
                return parseArrGetFirstJsonObj(dataJson);
            }
            return JSONObject.parseObject(dataJson);
        } catch (Exception e) {
            log.error(e.getMessage());
        }
        return null;
    }

    public static void main(String[] args) {
//        List<MRHistory> test = parseArray("[{\"Ba_Borrow_Apply_Name\":\"杨木苗\",\"Out_Hosp_Time\":\"2013-08-0115:58:00\",\"BA_Borrow_isPrint\":false,\"Zynum\":\"1049499\",\"BA_Borrow_isPay\":false,\"In_Hosp_Time\":\"2012-08-1015:30:00\",\"Dx\":\"精神分裂症\",\"Ba_Borrow_Useto_Name\":\"律师\",\"BA_Borrow_OperDate\":\"2023-06-2015:55:28\",\"Ba_Borrow_Phone\":\"1\",\"Bano\":\"1049499\",\"Ba_Borrow_Getway\":0,\"Ba_Borrow_Address\":\"1\"}]", MRHistory.class);
    }
}