springboot中jxl生成excel报表 - 借鉴

controller层：

    @ApiOperation(value="下载问卷报表", notes="下载问卷报表", position = 4)
    @GetMapping("/download/{surveyId}")
    public void download(@PathVariable("surveyId") String surveyId,
                         HttpServletRequest request, HttpServletResponse response) {

        ExcelUtilsMProtal.exportCourseContent(request,
                                              response,
                                              surveyService.download(surveyId));
    }

import jxl.CellView;
import jxl.format.Alignment;
import jxl.format.Colour;
import jxl.format.UnderlineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.*;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

@Slf4j
public class ExcelUtilsMProtal {

    public static void exportCourseContent(HttpServletRequest request,
                                           HttpServletResponse response,
                                           SurveyDownloadDto surveyDownloadDto){
        WritableWorkbook wwb = null;
        OutputStream os = null;
        String surveyName = surveyDownloadDto.getSurveyName();
        List<String> header = surveyDownloadDto.getColumnName();
        List<SurveyData> data = surveyDownloadDto.getDataList();

        try {
            os = response.getOutputStream();// 取得输出流
            response.reset();// 清空输出流
            // excel 文件的 MIME 类型
            response.setContentType("application/vnd.ms-excel");
            //在导出前对名称根据浏览器做下处理
            String agent = request.getHeader("USER-AGENT").toLowerCase();
            String fileName = new SimpleDateFormat("yyyy-MM-dd ").format(new Date()) + surveyName;//文件名中文乱码
            String codedFileName = java.net.URLEncoder.encode(fileName, "UTF-8");
            if (agent.contains("firefox")) {
                response.setCharacterEncoding("utf-8");
                response.setHeader("content-disposition", "attachment;filename=" + new String(fileName.getBytes(), "ISO8859-1") + ".xls");
            } else {
                response.setHeader("content-disposition", "attachment;filename=" + codedFileName + ".xls");
            }

            wwb = jxl.Workbook.createWorkbook(os);
            WritableSheet ws = wwb.createSheet(surveyName, 10); // 创建一个工作表

            // 设置标题单元格的文字格式
            WritableFont titleFont = new WritableFont(WritableFont.createFont("宋体"), 12,
                    WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE, Colour.BLACK);
            WritableCellFormat titleFontFormat = new WritableCellFormat(titleFont);
            titleFontFormat.setVerticalAlignment(VerticalAlignment.CENTRE);
            titleFontFormat.setAlignment(Alignment.CENTRE);
            titleFontFormat.setBackground(Colour.LIGHT_TURQUOISE);


            // 设置内容数据单元格的文字格式
            WritableFont cellFont = new WritableFont(WritableFont.createFont("宋体"), 12,
                    WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE,Colour.BLACK);
            WritableCellFormat cellFontFormat = new WritableCellFormat(cellFont);
            cellFontFormat.setVerticalAlignment(VerticalAlignment.CENTRE);//垂直居中
            cellFontFormat.setAlignment(Alignment.LEFT);//文字对齐方式

            ws.getSettings().setDefaultColumnWidth(18);
            ws.getSettings().setDefaultRowHeight(300);

            CellView cellView = new CellView();
            cellView.setAutosize(true); //设置自动大小
//            /*======= 设置列宽 =====*/
//            ws.setColumnView(0, 30);//根据内容自动设置列宽
//            ws.setColumnView(1, 30);
//            ws.setColumnView(2, 30);
//            ws.setColumnView(3, 24);
//            ws.setColumnView(4, 24);
//            ws.setColumnView(5, 24);

            /*======= 填充标题 =====*/
            for(int i = 0; i < header.size(); i++) {

                ws.setColumnView(i, cellView);
                ws.addCell(new Label(i, 0, header.get(i), titleFontFormat));
            }

            for(int i = 1; i <= data.size(); i++) {
                //======= 填充内容 =====
                SurveyData surveyData = data.get(i - 1);
                ws.addCell(new Label(0, i, surveyData.getNum(), cellFontFormat));
                ws.addCell(new Label(1, i, surveyData.getSurveyId(), cellFontFormat));
                ws.addCell(new Label(2, i, surveyData.getSurveyName(), cellFontFormat));
                ws.addCell(new Label(3, i, surveyData.getUserName(), cellFontFormat));
                ws.addCell(new Label(4, i, surveyData.getUserId(), cellFontFormat));
                ws.addCell(new Label(5, i, surveyData.getPhone(), cellFontFormat));
                ws.addCell(new Label(6, i, surveyData.getDeptName(), cellFontFormat));
                ws.addCell(new Label(7, i, surveyData.getBranch(), cellFontFormat));
                int j = 8;
                for(String item : surveyData.getItemList()) {
                    ws.addCell(new Label(j++, i, item, cellFontFormat));
                }
                ws.addCell(new Label(j, i, surveyData.getSurveyRecordTime() + "", cellFontFormat));
            }

            ws.toString();
            wwb.write();
        } catch (Exception e) {
            log.error(e.getMessage());
        } finally {
            try {
                if (wwb != null) {
                    wwb.close();
                }
                if (os != null) {
                    os.close();
                }
            } catch (Exception e) {
                log.error(e.getMessage());
            }
        }
    }
}

pom

<dependency>
            <groupId>net.sourceforge.jexcelapi</groupId>
            <artifactId>jxl</artifactId>
        </dependency>