2021-01-06【easyExcel，springBoot 批量任务】

springBoot @Async 异步任务

// async\GjContractAsync.java

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;

/**
 * 异步
 */
@Component
public class GjContractAsync {

    private static Logger logger = LoggerFactory.getLogger(GjContractAsync.class);
    private static String DATE_FORMAT1 = "yyyyMMdd";
    private static String SAV_CUS = "2"; // 保险蓄客

    @Autowired
    private GjKhxxDao gjKhxxDao;
	
    @Autowired
    private GjContractDao gjContractDao;
	
    @Autowired
    private HisGjContractDao hisGjContractDao;
	
    @Transactional(rollbackFor = Exception.class)
    @Async
    public  void mainAysc(List<Object> dataList, UserInfo userInfo) {
        logger.info("开始执行xxxx异步任务....");
		//  异步任务逻辑，无返回
        logger.info("结束xxxx异步任务....");

    }
    /**
     * 【保单状态处理】
     * @author copote
     * @date  2020/12/17 16:07
     */
    private ImpGjContractModel handerContractStatus(ImpGjContractModel item) {
        if(CommonUtil.isNotEmpty( item.getcState())){
            //  NORMAL((String) "1","正常"),
            //    CANCEL((String) "2","当日撤单");
            if(ContractStatusEnum.NORMAL.getName().equals( item.getcState().trim()) ||
                    ContractStatusEnum.NORMAL.getCode().equals( item.getcState().trim())
            ){
                item.setcState(ContractStatusEnum.NORMAL.getCode());
            }else{
                // 保费为负值
                item.setcState(ContractStatusEnum.CANCEL.getCode());
                System.out.println(ContractStatusEnum.CANCEL.getName()+"=========保费为负值=========="+item.getnPremium().negate());
                item.setnPremium(item.getnPremium().negate());
            }
        }
        return item;
    }
}

easyExcel 下载

//  project\model\ImpGjContractModel.java
public void exportGjContractRecordMbExcel() throws IOException {
        List<ImpGjContractModel> list =null;
        ServletOutputStream out = response.getOutputStream();
        ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true);
        String fileName = "个金保险蓄客保险出单模板";
        Sheet sheet = new Sheet(1, 0,ImpGjContractModel.class);
        //设置自适应宽度
        sheet.setAutoWidth(Boolean.TRUE);
        // 第一个 sheet 名称
        sheet.setSheetName("个金保险蓄客保险出单");
        writer.write(list, sheet);
        //通知浏览器以附件的形式下载处理，设置返回头要注意文件名有中文
//        response.setHeader("Content-disposition", "attachment;filename=" + new String( fileName.getBytes("gb2312"), "ISO8859-1" ) + ".xlsx");
        response.setHeader("Content-Disposition","attachment;filename=" + URLEncoder.encode(fileName + ".xlsx", "utf-8"));
        writer.finish();
        response.setContentType("multipart/form-data");
        response.setCharacterEncoding("utf-8");
        out.flush();
}

spring Scheduled 批量任务

// spring 批量任务：project\task\GjStatisTask.java

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

@Component
public class GjStatisTask {

    private static Logger logger = LoggerFactory.getLogger(GjStatisTask.class);

    @Autowired
    private GjKhxxDao gjKhxxDao;
    @Transactional(rollbackFor = Exception.class)
    @Scheduled(cron="0 0 17 * * ?")
//    @Scheduled(cron="0 20 * * * ?")
    void GjTemporaryStatis(){
        logger.info("开始执行个金统计生成临时表数据任务....");
        //先执行 truncate table T_STBT_KHXX_GJ_TGTJ 删除临时表
        gjKhxxDao.deleteKhxxGjTgtj();

        gjKhxxDao.insertIntoKhxxGjTgtj();
        // insert into  select  添加到临时表
        logger.info("结束个金统计生成临时表数据任务....");
    }
}

本文地址：https://blog.csdn.net/qq_32265719/article/details/112259450