【easyExcel】easyExcel自定义单元格
作者:互联网
easyExcel自定义单元格
配置
依赖
<!-- https://mvnrepository.com/artifact/com.alibaba/easyexcel -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>2.2.11</version>
</dependency>
对象
@Data
@Accessors(chain = true)
@HeadFontStyle(fontName = "等线", fontHeightInPoints = 10)
public class ApproveList {
@ExcelProperty(value = "approveResult",index = 0)
private String approveResult;
private String remark;
private String id;
private String pn;
private String detail;
}
写excel
导出excel方法
public void download(HttpServletResponse response,ApproveList approveList){
String fileName =
URLEncoder.encode(
("ApproveList" + dateFormat.format(new Date())), "UTF-8");
response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
//设置approveResult为下拉选择框,设置选择框的枚举值
approveList.getApproveResult();
HashMap<Integer, String[]> dropDownMap = new HashMap<>();
dropDownMap.put(0,new String[]{"Approve","Reject"});
//设置哪些列不可编辑,字段索引
List<Integer> columnIndex = new ArrayList<>();
for (int i = 2; i < 4; i++) {
columnIndex.add(i);
}
try {
EasyExcel.write(response.getOutputStream(), ApproveList.class).
registerWriteHandler(new CustomCellWriteHandler())
.registerWriteHandler(new ContentCellWriteHandler(columnIndex,dropDownMap))
.sheet("ApproveList").doWrite(approveList);
} catch (IOException e) {
e.printStackTrace();
}
}
实现CellWriteHandler接口
public class ContentCellWriteHandler implements CellWriteHandler {
private List<Integer> columnIndexs;
private Short colorIndex;
private HashMap<Integer,String> annotationsMap;
private HashMap<Integer,String[]> dropDownMap;
public ContentCellWriteHandler(List<Integer> columnIndexs, Short colorIndex, HashMap<Integer,String> annotationsMap){
this.columnIndexs=columnIndexs;
this.colorIndex=colorIndex;
this.annotationsMap=annotationsMap;
}
public ContentCellWriteHandler(List<Integer> columnIndexs, Short colorIndex, HashMap<Integer,String> annotationsMap, HashMap<Integer,String[]> dropDownMap){
this.columnIndexs=columnIndexs;
this.colorIndex=colorIndex;
this.annotationsMap=annotationsMap;
this.dropDownMap=dropDownMap;
}
public ContentCellWriteHandler(List<Integer> columnIndexs, HashMap<Integer,String[]> dropDownMap){
this.columnIndexs=columnIndexs;
this.dropDownMap=dropDownMap;
}
@Override
public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row, Head head, Integer integer, Integer integer1, Boolean aBoolean) {}
@Override
public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Cell cell, Head head, Integer integer, Boolean aBoolean) {}
@Override
public void afterCellDataConverted(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, CellData cellData, Cell cell, Head head, Integer integer, Boolean aBoolean) {}
@Override
public void afterCellDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, List<CellData> list, Cell cell, Head head, Integer integer, Boolean isHead) {
if (!isHead){
Sheet sheet = writeSheetHolder.getSheet();
if (CollectionUtils.isNotEmpty(columnIndexs)){
Workbook workbook = sheet.getWorkbook();
// CellStyle cellStyle1 = StyleUtil.buildHeadCellStyle(workbook, writeFont);
/* 这里要重新create不锁定的列样式 */
CellStyle unlockCellStyle = workbook.createCellStyle();
unlockCellStyle.setLocked(false);//默认是锁定状态;将所有单元格设置为:未锁定;然后再对需要上锁的单元格单独锁定
cell.setCellStyle(unlockCellStyle);
if (colorIndex != null && columnIndexs.contains(cell.getColumnIndex())){
WriteCellStyle writeCellStyle = new WriteCellStyle();
WriteFont writeFont = new WriteFont();
writeFont.setColor(colorIndex);
writeCellStyle.setWriteFont(writeFont);
}
/* 这里可以根据需要进行判断;我这就将columnIndexs列上锁了 */
if (cell.getColumnIndex() != 1 && columnIndexs.contains(cell.getColumnIndex())){
// 设置表单保护密码
writeSheetHolder.getSheet().protectSheet("password");
// 设置锁定单元格
// CellStyle cellLockStyle = StyleUtil.buildHeadCellStyle(workbook, writeFont);
/* 这里要重新create列锁定的列样式,*/
CellStyle cellLockStyle = workbook.createCellStyle();
cellLockStyle.setLocked(true);
cellLockStyle.setVerticalAlignment(VerticalAlignment.CENTER);
cellLockStyle.setFillBackgroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
cellLockStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
cellLockStyle.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
cellLockStyle.setBorderBottom(BorderStyle.THIN);
cellLockStyle.setBorderTop(BorderStyle.THIN);
cellLockStyle.setBorderLeft(BorderStyle.THIN);
cellLockStyle.setBorderRight(BorderStyle.THIN);
cellLockStyle.setWrapText(true);
cell.setCellStyle(cellLockStyle);
}
}
if (annotationsMap != null && annotationsMap.containsKey(cell.getColumnIndex())){
String context = annotationsMap.get(cell.getColumnIndex());
Comment cellComment =sheet.createDrawingPatriarch().createCellComment(new XSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), 0, (short) 5, 5));
cellComment.setString(new XSSFRichTextString(context));
cell.setCellComment(cellComment);
}
//设置下拉框
if (dropDownMap !=null && dropDownMap.containsKey(cell.getColumnIndex())){
String[] datas = dropDownMap.get(cell.getColumnIndex());
DataValidationHelper dataValidationHelper = sheet.getDataValidationHelper();
DataValidationConstraint dvConstraint = dataValidationHelper.createExplicitListConstraint(datas);
CellRangeAddressList addressList = null;
DataValidation validation = null;
for (int i = 1; i < 1000; i++) {
addressList = new CellRangeAddressList(i, i, cell.getColumnIndex(), cell.getColumnIndex());
validation = dataValidationHelper.createValidation(
dvConstraint, addressList);
sheet.addValidationData(validation);
}
}
}
}
}
- cellLockStyle.setLocked(true);设置为不可编辑,但导出后发现所有单元格均不可编辑:
- 因为createCell();创建单元格后,单元格默认是锁定状态;
- protectSheet(“密码”);保护工作表是保护所有锁定的单元格;
导出效果:
读excel
对象中设置@Accessors(chain = true),easyExcel能读取行数据,但是解析不了,也就是映射不了相应的类。
标签:cellLockStyle,自定义,easyExcel,单元格,cell,columnIndexs,dropDownMap,new,annotationsMap 来源: https://blog.csdn.net/weixin_37838913/article/details/123090290