汇率管理

zyy

2025-07-10 61202ae3cb115ae13f3f646764c0f36f27f5392f

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package com.nq.service.impl;
 
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.nq.Repository.ExchangeRateRepository;
import com.nq.common.ServerResponse;
import com.nq.dao.ExchangeRateMapper;
import com.nq.enums.EStockType;
import com.nq.pojo.ExchangeRate;
import com.nq.service.ExchangeRateService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
import javax.servlet.http.HttpServletRequest;
import java.util.Date;
import java.util.List;
 
@Service
public class ExchangeRateServiceImpl implements ExchangeRateService {
 
    private static final Logger log = LoggerFactory.getLogger(ExchangeRateServiceImpl.class);
 
    @Autowired
    ExchangeRateRepository exchangeRateRepository;
 
    @Autowired
    ExchangeRateMapper exchangeRateMapper;
 
    @Override
    public ServerResponse getInfo(Integer pageNum, Integer pageSize) {
        try {
            PageHelper.startPage(pageNum, pageSize);
            List<ExchangeRate> exchangeRateList = exchangeRateMapper.selectList(null);
            // 获取分页信息
            PageInfo<ExchangeRate> pageInfo = new PageInfo<>(exchangeRateList);
            return ServerResponse.createBySuccess(pageInfo);
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        }
        return ServerResponse.createByError();
    }
 
    @Override
    public ServerResponse updateRate(ExchangeRate model, HttpServletRequest request) {
        try {
            if (model == null) {
                return ServerResponse.createByErrorMsg("model is null");
            }
            if (model.getRata() == null || model.getCurrency().isEmpty() || model.getConversionCurrency().isEmpty()) {
                return ServerResponse.createByErrorMsg("请输入货币和汇率参数不能为空");
            }
            if (model.getCurrency().equals(model.getConversionCurrency())) {
                return ServerResponse.createByErrorMsg("原始货币和转换货币不能相同");
            }
            //货币只能为US或MX
            if (!model.getCurrency().equals(EStockType.US.getSymbol()) && !model.getCurrency().equals(EStockType.MX.getSymbol())) {
                return ServerResponse.createByErrorMsg("货币只能为：" + EStockType.US.getSymbol() + " 或 " +  EStockType.MX.getSymbol());
            }
            if (!model.getConversionCurrency().equals(EStockType.US.getSymbol()) && !model.getConversionCurrency().equals(EStockType.MX.getSymbol())) {
                return ServerResponse.createByErrorMsg("转换货币只能为：" + EStockType.US.getSymbol() + " 或 " +  EStockType.MX.getSymbol());
            }
            //新增
            if (model.getId() == null) {
                //查询该货币汇率是否存在
                ExchangeRate exchangeRate = exchangeRateRepository.findExchangeRateByCurrencyAndConversionCurrency(model.getCurrency(),
                        model.getConversionCurrency()).orElse(null);
                if (exchangeRate != null) {
                    return ServerResponse.createByErrorMsg("当前货币转换已存在");
                }
                model.setUpdateTime(new Date());
                model = exchangeRateRepository.saveAndFlush(model);
            } else {    //修改
                ExchangeRate exchangeRate = exchangeRateRepository.findById(model.getId()).orElse(null);
                if (exchangeRate  == null) {
                    return ServerResponse.createByErrorMsg("修改失败,记录不存在!");
                }
                //只能修改汇率
                exchangeRate.setRata(model.getRata());
                exchangeRate.setUpdateTime(new Date());
                model = exchangeRateRepository.saveAndFlush(exchangeRate);
            }
            model = exchangeRateRepository.saveAndFlush(model);
            return ServerResponse.createBySuccess("操作成功", model);
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        }
        return ServerResponse.createByError();
    }
}