easyexcel多行不同的表头导出（多表格不同表头）

一、效果展示

二、代码

/**
     * 导出月度报表数据信息
     */
    @ApiOperation(value = "导出月度报表数据信息")
    @Log(title = "导出月度报表", businessType = BusinessType.EXPORT)
    @RequestMapping("/exportMonthChart")
    public void exportMonthChart(HttpServletResponse response) {
        try {
            tableWrite(response,input);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void tableWrite(HttpServletResponse response) throws IOException {
        MonthChartOutput output = lsDeviceInfoService.monthChart(input);
        WriteSheet writeSheet = EasyExcel.writerSheet("设备月度报表").needHead(Boolean.FALSE).build();
        // 这里必须指定需要头，table 会继承sheet的配置，sheet配置了不需要，table 默认也是不需要
        WriteTable writeTable0 = EasyExcel.writerTable(0).needHead(Boolean.TRUE).head(ExportVO.class).build();
        WriteTable writeTable1 = EasyExcel.writerTable(1).needHead(Boolean.TRUE).head(ExportVO.class).build();
        WriteTable writeTable2 = EasyExcel.writerTable(2).needHead(Boolean.TRUE).head(DemoData.class).build();

        // 生成无表头的内容
        List<List<String>> headList = Lists.newArrayList();
        headList.add(Lists.newArrayList("自定义表头1","自定义表头2","自定义表头3"));

        // 生成有表头的内容
        List<ExportVO> list = Lists.newArrayList();
        for (int i = 1; i < 10; i++) {
            list.add(ExportVO.builder().heat1("第"+i+"行内容")
                    .heat2("第"+i+"行内容")
                    .heat3("第"+i+"行内容")
                    .heat4("第"+i+"行内容")
                    .heat5("第"+i+"行内容")
                    .build());
        }
        String fileName = URLEncoder.encode("销售表现趋势分析-"+ System.currentTimeMillis()+".xlsx", "UTF-8");
        response.setCharacterEncoding("UTF-8");
        response.setHeader("content-Type", "application/vnd.ms-excel");
        response.setHeader("Content-Disposition", "attachment;filename=" + fileName);
        response.setHeader("filename", fileName);
        ExcelWriter excelWriter = EasyExcel.write(response.getOutputStream()).build();
       // 第一次写入
        excelWriter.write(headList, writeSheet, writeTable0);
        // 第二次写入会创建头，然后在第一次的后面写入数据
        excelWriter.write(list, writeSheet, writeTable1);
        excelWriter.write(data(), writeSheet, writeTable2);
        excelWriter.finish();
    }

    private List<DemoData> data() {
        List<DemoData> list = ListUtils.newArrayList();
        for (int i = 0; i < 10; i++) {
            DemoData data = new DemoData();
            data.setString("字符串" + i);
            data.setDate(new Date());
            data.setDoubleData(0.56);
            list.add(data);
        }
        return list;
    }

实体DemoData 代码：

@Getter
@Setter
@EqualsAndHashCode
public class DemoData {
    @ExcelProperty("字符串标题")
    private String string;
    @ExcelProperty("日期标题")
    private Date date;
    @ExcelProperty("数字标题")
    private Double doubleData;
    /**
     * 忽略这个字段
     */
    @ExcelIgnore
    private String ignore;
}

实体DemoData 代码：

@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
@HeadRowHeight(18)
@ContentRowHeight(15)
@ColumnWidth(16)
public class ExportVO {

    @ExcelProperty("表头1")
    private String heat1;

    @ExcelProperty("表头2")
    private String heat2;

    @ExcelProperty("表头3")
    private String heat3;

    @ExcelProperty("表头4")
    private String heat4;

    @ExcelProperty("表头5")
    private String heat5;
}