Java实现excel动态列导出的示例代码
作者：warrah
这篇文章主要为大家详细介绍了如何使用Java实现excel动态列导出,文中的示例代码讲解详细,具有一定的借鉴价值,感兴趣的小伙伴可以跟随小编一起学习一下
excel动态列，只好用poi来写了，也并不复杂，一样就这个件事情抽像为几步，就是套路了，开发效率就上去了。
准备空模板
导出操作与excel模板的导出一样，可以参考excel导出标准化
自定义SheetWriteHandler
要通过pos自己创建每一样，像模板一样创建即可.
WriteSheet sheet0 = EasyExcel.writerSheet(0)
//标题
.registerWriteHandler(new GoodsInvRdSumWriteHandler(goodsInvRdSumListDto.getHeader()))
.build();
主要重写afterSheetCreate,也就是一行行的创建excel模板
@Override
public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
Workbook workbook = writeWorkbookHolder.getWorkbook();
this.centerCellStyle = createCellContentStyle(workbook,HorizontalAlignment.CENTER,BorderStyle.THIN);
this.leftCellStyle = createCellContentStyle(workbook,HorizontalAlignment.LEFT,BorderStyle.THIN);
this.rightCellStyle = createCellContentStyle(workbook,HorizontalAlignment.RIGHT,BorderStyle.THIN);
Sheet sheet = workbook.getSheetAt(0);
row1(sheet,workbook);
row2(sheet,workbook);
row34(sheet);
row5(sheet);
}
第一行
/**
* 第一行是标题
* @param sheet
*/
private void row1(Sheet sheet,Workbook workbook){
Row row = sheet.createRow(0);
row.setHeight((short) (50 * 20));
Cell cell = row.createCell(0);
cell.setCellValue("商品收发汇总表");
cell.setCellStyle(getHeadCellStyle(workbook, this.centerCellStyle));
CellRangeAddress cellRangeAddress = new CellRangeAddress(0, 0, 0, 9+this.dynamicHeader.size()*2-1);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyleNoBorder(sheet, cellRangeAddress);
}
第二行
/**
* 第二行 公司名称、日期
* @param sheet
*/
private void row2(Sheet sheet,Workbook workbook){
Row row = sheet.createRow(1);
CellStyle subHeaderStyle = createCellContentStyle(workbook, HorizontalAlignment.LEFT,BorderStyle.NONE);
// 公司名称
Cell cell = row.createCell(0);
cell.setCellStyle(subHeaderStyle);
cell.setCellValue("公司：{companyName} 日期：{startBillDate}至{endBillDate}");
sheet.addMergedRegionUnsafe(new CellRangeAddress(1, 1, 0, 9+this.dynamicHeader.size()*2-1));
}
第三行,第四行涉及到动态列的创建和合并表头
private void row34(Sheet sheet){
Row row3 = sheet.createRow(2);
Row row4 = sheet.createRow(3);
// 商品编码
Cell cell = row3.createCell(0);
cell.setCellValue("商品编码");
cell.setCellStyle(this.centerCellStyle);
CellRangeAddress cellRangeAddress = new CellRangeAddress(2, 3, 0, 0);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
// 商品名称
cell = row3.createCell(1);
cell.setCellValue("商品名称");
cell.setCellStyle(this.centerCellStyle);
cellRangeAddress = new CellRangeAddress(2, 3, 1, 1);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
// 商品规格
cell = row3.createCell(2);
cell.setCellValue("商品规格");
cell.setCellStyle(this.centerCellStyle);
cellRangeAddress = new CellRangeAddress(2, 3, 2, 2);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
//动态列
int dySize = this.dynamicHeader.size();
if (dySize>0){
for (int i=0; i<dySize; i++){
Map<String,Object> colMap = this.dynamicHeader.get(i);
String busiType = String.valueOf(colMap.get("prop")).replace("busi_", BaseConstant.Separate.NONE);
BusinessTypeEnum businessTypeEnum = BusinessTypeEnum.getInvBusinessTypeEnum(busiType);
// 第3行——合并表头
cell = row3.createCell(3+i*2);
cell.setCellValue(businessTypeEnum.display());
cell.setCellStyle(this.centerCellStyle);
cellRangeAddress = new CellRangeAddress(2, 2, 3+i*2, 4+i*2);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
// 第4行——成本
cell = row4.createCell(3+i*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("数量");
// 第4行——数量
cell = row4.createCell(4+i*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("成本");
}
}
// 入库合计
cell = row3.createCell(3+dySize*2);
cell.setCellValue("入库合计");
cell.setCellStyle(this.centerCellStyle);
cellRangeAddress = new CellRangeAddress(2, 2, 3+dySize*2, 4+dySize*2);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
// 入库合计——成本
cell = row4.createCell(3+dySize*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("数量");
// 入库合计——数量
cell = row4.createCell(4+dySize*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("成本");
// 出库合计
cell = row3.createCell(5+dySize*2);
cell.setCellValue("出库合计");
cell.setCellStyle(this.centerCellStyle);
cellRangeAddress = new CellRangeAddress(2, 2, 5+dySize*2, 6+dySize*2);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
// 出库合计——成本
cell = row4.createCell(5+dySize*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("数量");
// 出库合计——数量
cell = row4.createCell(6+dySize*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("成本");
// 结余
cell = row3.createCell(7+dySize*2);
cell.setCellValue("结余");
cell.setCellStyle(this.centerCellStyle);
cellRangeAddress = new CellRangeAddress(2, 2, 7+dySize*2, 8+dySize*2);
sheet.addMergedRegionUnsafe(cellRangeAddress);
setMergedRegionStyle(sheet, cellRangeAddress);
// 结余——成本
cell = row4.createCell(7+dySize*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("数量");
// 结余——数量
cell = row4.createCell(8+dySize*2);
cell.setCellStyle(this.centerCellStyle);
cell.setCellValue("成本");
}第五行是数据域
/**
* 第五行：数据域
* @param sheet
*/
private void row5(Sheet sheet){
Row row = sheet.createRow(4);
// 商品编码
Cell cell = row.createCell(0);
cell.setCellStyle(this.leftCellStyle);
cell.setCellValue("{.stockCode}");
// 商品名称
cell = row.createCell(1);
cell.setCellStyle(this.leftCellStyle);
cell.setCellValue("{.stockName}");
// 商品规格
cell = row.createCell(2);
cell.setCellStyle(this.leftCellStyle);
cell.setCellValue("{.stockModel}");
// 动态列
int dySize = this.dynamicHeader.size();
if (!CheckEmptyUtil.isEmpty(this.dynamicHeader)){
for (int i=0; i<dySize; i++){
Map<String,Object> colMap = this.dynamicHeader.get(i);
List<Map<String,String>> chidren = (List<Map<String,String>>)colMap.get("children");
// 数量
Map<String,String> countMap = chidren.get(0);
cell = row.createCell(3+i*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue(String.format("{.%s}", countMap.get("prop")));
// 成本
Map<String,String> costMap = chidren.get(1);
cell = row.createCell(4+i*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue(String.format("{.%s}", costMap.get("prop")));
}
}
// 入库合计
cell = row.createCell(3+dySize*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue("{.count_total_in}");
cell = row.createCell(4+dySize*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue("{.cost_total_in}");
// 出库合计
cell = row.createCell(5+dySize*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue("{.count_total_out}");
cell = row.createCell(6+dySize*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue("{.cost_total_out}");
// 结余
cell = row.createCell(7+dySize*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue("{.final_count}");
cell = row.createCell(8+dySize*2);
cell.setCellStyle(this.rightCellStyle);
cell.setCellValue("{.final_cost}");
}表格样式这里只写一个,其他的参考pos文档即可,不要每一个单元都重新创建单元格样式,那样非常消耗性能.
private CellStyle createCellContentStyle(Workbook workbook, HorizontalAlignment align,BorderStyle borderStyle) {
CellStyle style = workbook.createCellStyle();
// 设置对齐样式
style.setAlignment(align);
//背景为白色
style.setFillForegroundColor(IndexedColors.WHITE.getIndex());
// 设置边框样式
// 下边框
style.setBorderBottom(borderStyle);
// 左边框
style.setBorderLeft(borderStyle);
// 上边框
style.setBorderTop(borderStyle);
// 右边框
style.setBorderRight(borderStyle);
// 生成字体
Font font = workbook.createFont();
font.setFontName("宋体");
// 设置字体大小
font.setFontHeightInPoints((short) 10);
// 粗体显示
font.setBold(false);
// 选择创建的字体格式
style.setFont(font);
return style;
}
到此这篇关于Java实现excel动态列导出的示例代码的文章就介绍到这了,更多相关Java excel动态列导出内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！