weaver-hrm-salary/src/com/engine/salary/biz/AddUpDeductionBiz.java

package com.engine.salary.biz;

import com.engine.salary.entity.datacollection.dto.AddUpDeductionListDTO;
import com.engine.salary.entity.datacollection.param.AddUpDeductionQueryParam;
import com.engine.salary.mapper.datacollection.AddUpDeductionMapper;
import org.apache.ibatis.session.SqlSession;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.IndexedColors;
import weaver.conn.mybatis.MyBatisFactory;
import weaver.general.BaseBean;
import weaver.general.Util;

import java.text.SimpleDateFormat;
import java.util.*;
import java.util.stream.Collectors;

public class AddUpDeductionBiz extends BaseBean {


    /**
     * 查询列表
     *
     * @param param
     * @return
     */
    public List<AddUpDeductionListDTO> list(AddUpDeductionQueryParam param) {
        SqlSession sqlSession = MyBatisFactory.sqlSessionFactory.openSession();
        try {
            AddUpDeductionMapper mapper = sqlSession.getMapper(AddUpDeductionMapper.class);
            List<AddUpDeductionListDTO> list = mapper.list(param);
            return list;
        } finally {
            sqlSession.close();
        }
    }


    /**
     * excel标题
     */
    private final static List<String> title = Arrays.asList("姓名", "个税扣缴义务人", "部门", "手机号", "工号", "证件号码", "入职日期", "累计子女教育", "累计继续教育", "累计住房贷款利息", "累计住房租金", "累计赡养老人");

    /**
     * 导出
     *
     * @param param
     * @return
     */
    public HSSFWorkbook export(AddUpDeductionQueryParam param) {

        //获取操作按钮资源
        List<List<String>> rowList = getExcelRowList(param);

        //获取excel
        return getWorkbook(rowList);
    }

    /**
     * 获取excel
     *
     * @param rowList 行列表
     * @return workbook
     */
    private HSSFWorkbook getWorkbook(List<List<String>> rowList) {
        HSSFWorkbook workbook = new HSSFWorkbook();

        // 设置title样式
        HSSFCellStyle titleCellStyle = workbook.createCellStyle();
        HSSFFont titleFont = workbook.createFont();
        titleFont.setFontName("仿宋");
        titleFont.setFontHeightInPoints((short) 15);
        titleCellStyle.setFont(titleFont);
        titleCellStyle.setAlignment(HorizontalAlignment.CENTER);
        titleCellStyle.setFillForegroundColor(IndexedColors.GREEN.getIndex());//背景色
        titleCellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);


        // 设置主体样式
        HSSFCellStyle cellStyle = workbook.createCellStyle();
        HSSFFont font = workbook.createFont();
        font.setFontName("宋体");
        font.setFontHeightInPoints((short) 10);// 设置字体大小
        cellStyle.setFont(font);// 选择需要用到的字体格式
        cellStyle.setWrapText(true);

        HSSFSheet sheet = workbook.createSheet("0");
        for (int rowIndex = 0; rowIndex < rowList.size(); rowIndex++) {
            List<String> infoList = rowList.get(rowIndex);
            HSSFRow row = sheet.createRow(rowIndex);
            for (int cellIndex = 0; cellIndex < infoList.size(); cellIndex++) {
                HSSFCell cell = row.createCell(cellIndex);
                cell.setCellType(CellType.STRING);
                if (rowIndex == 0) {
                    cell.setCellStyle(titleCellStyle);
                } else {
                    cell.setCellStyle(cellStyle);
                }
                cell.setCellValue(infoList.get(cellIndex));
                sheet.setColumnWidth(cellIndex, 35 * 256);
            }
        }
        return workbook;
    }


    /**
     * 获取excel数据行
     *
     * @return 导出数据行集合
     */
    private List<List<String>> getExcelRowList(AddUpDeductionQueryParam param) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
        List<AddUpDeductionListDTO> list = list(param);
        final List<List<String>> dataRowList = Optional.ofNullable(list)
                .map(List::stream)
                .map(operatorStream -> operatorStream.map(dto -> {
                    List<String> cellList = new ArrayList<>();
                    cellList.add(Util.null2String(dto.getUsername()));
                    cellList.add(Util.null2String(dto.getTaxAgentName()));
                    cellList.add(Util.null2String(dto.getDepartmentName()));
                    cellList.add(Util.null2String(dto.getMobile()));
                    cellList.add(Util.null2String(dto.getJobNum()));
                    cellList.add(Util.null2String(dto.getIdNo()));
                    cellList.add(dto.getHiredate()==null?"":formatter.format(dto.getHiredate()));
                    cellList.add(String.valueOf(dto.getAddUpChildEducation()));
                    cellList.add(String.valueOf(dto.getAddUpContinuingEducation()));
                    cellList.add(String.valueOf(dto.getAddUpHousingLoanInterest()));
                    cellList.add(String.valueOf(dto.getAddUpHousingRent()));
                    cellList.add(String.valueOf(dto.getAddUpSupportElderly()));
                    return cellList;
                }).collect(Collectors.toList()))
                .orElse(Collections.emptyList());

        List<List<String>> rowList = new ArrayList<>();
        rowList.add(title);
        rowList.addAll(dataRowList);
        return rowList;
    }

}