result_assembly/src/main/java/com/bfd/assemble/utils/DataUtil.java

package com.bfd.assemble.utils;

import java.util.Map;

import lombok.extern.slf4j.Slf4j;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.JSONPath;
import com.bfd.assemble.entity.Constants;

/**
 * @author:jinming
 * @className:DataUtil
 * @version:1.0
 * @description: 获取dataValue的值
 * @Date:2023/11/1 9:54
 */
@Slf4j
public class DataUtil {
    /**
     *
     * @param key 传入的key
     * @param dataMap 数据map
     * @return 根据传入的参数进行判断解析，返回正确的dataValue
     */
    public static Object getValue(String key, Map dataMap) {
    	try {
    		//公式为空直接就返回
        	if(key.equals(Constants.EMPTY)){
        		return Constants.EMPTY;
        	}
            Object dataValue;
            String isJson = "#json#";
            if (key.contains(isJson)) {
                //进行第一次拆分，获取#json#前面的部分
                String[] keySplit = key.split(isJson);
                String firstDataKey = keySplit[0];
                String[] firstDataKeySplit = firstDataKey.split(":");
                //取出前半部分对应的JSON数据并转换为JSONObject
                String dataJson = (String) dataMap.get(firstDataKeySplit[0]);
                JSONObject dataJsonObject = JSON.parseObject(dataJson);
                //根据key的后半部分取出对应JSONObject中的值
                String firstDataKeyJson = (String) JSONPath.eval(dataJsonObject, firstDataKeySplit[1]);
                String secDataKey = keySplit[1];
                JSONObject firstDataJsonObject = JSON.parseObject(firstDataKeyJson);
                dataValue = JSONPath.eval(firstDataJsonObject, secDataKey);
                return dataValue;
            }
            String[] keySplit = key.split(":");
            String jsonPath = keySplit[1];
            String dataJson = (String) dataMap.get(keySplit[0]);
            JSONObject dataJsonObject = JSON.parseObject(dataJson);
            dataValue =  JSONPath.eval(dataJsonObject, jsonPath);
            return dataValue;
		} catch (Exception e) {
			// TODO: handle exception
			log.error("jsonpath公式取值异常，",e);
			return null;
		}
    	
    }
}