遍历List 中 Map 的值

Posted 2021-12-24 zhukaixin

实现思路:

List list = new ArrayList();
Map map = new HashMap();
for(i=0;i<list.size;i++)
　　map=list.get(i);
　　for (String key : map.keySet())
　　System.out.println("key:"+key+",value:"+map.get(key) );
　　

项目使用:

package com.ilotterytech.bwlbis.warehouse.imports.service;
import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * @ Author : zhukaixin
 * @ Date : 2019-06-05-15:36
 * @ Desc :即开票兑奖数据查询
 */
@Service
@Transactional
public class RedemptionDataInquiryService extends DefaultRestService<RedemptionDataInquiry, Long,RedemptionDataInquiryRepository> 
    /**
     * 即开票兑奖数据查询数据导入
     *
     * @param multipartFile
     * @return
     * @throws IOException
     */
    public htmlResult saveFileImport(MultipartFile multipartFile) throws IOException 
        FileReader result = new FileReader(multipartFile.getInputStream(), multipartFile.getOriginalFilename());
        ExcelTitleReader excelTitleReader = new ExcelTitleReader(this.getClass().getClassLoader().getResourceAsStream("/res/RedemptionDataInquiry.properties"));
        //处理返回结果
        HtmlResult htmlResult = result.read().asHtmlResult(excelTitleReader);
        List<Map<String, Object>> contents = htmlResult.getContents();
        for (int i = 0; i < contents.size(); i++) 
            Map<String, Object> m = contents.get(i); //获取第一个Map，因为是ArrayList，所以下标0就是第一个
            RedemptionDataInquiry redemptionDataInquiry = new RedemptionDataInquiry();
            for (Map.Entry e : m.entrySet())  //遍历Map
                if (e.getKey().equals("date")) 
                    redemptionDataInquiry.setDate(String.valueOf(e.getValue()));
                 else if (e.getKey().equals("district")) 
                    redemptionDataInquiry.setDistrict(String.valueOf(e.getValue()));
                else if (e.getKey().equals("stationCode")) 
                    redemptionDataInquiry.setStationCode(String.valueOf(e.getValue()));
                else if (e.getKey().equals("generate")) 
                    redemptionDataInquiry.setGenerate(String.valueOf(e.getValue()));
                 else if (e.getKey().equals("gameName")) 
                    redemptionDataInquiry.setGameName(String.valueOf(e.getValue()));
                else if (e.getKey().equals("gameCode")) 
                    redemptionDataInquiry.setGameCode(String.valueOf(e.getValue()));
                else if (e.getKey().equals("money")) 
                    redemptionDataInquiry.setMoney(String.valueOf(e.getValue()));
                else if (e.getKey().equals("redemptionCommission")) 
                    redemptionDataInquiry.setRedemptionCommission(String.valueOf(e.getValue()));
                
            
            save(redemptionDataInquiry);
        
        return htmlResult;