@Override
public Workbook writeWorkbook(
Workbook workbook, String sheetTitle, List<List<String>> tableDataList, int headerNum) {
if (workbook == null) workbook = new XSSFWorkbook();
int exportRecordNum = tableDataList.size(); // 导出的总记录数
int tableStartRowNum = headerNum > 0 ? headerNum : 0; // 表体数据开始行数
int sheetNum =
exportRecordNum / (CommonConst.EXCEL_MAX_EXPORT_NUM - headerNum)
+ 1; // 工作表的页数
List<XSSFSheet> sheetList = new ArrayList<XSSFSheet>();
if (StringUtils.isEmpty(sheetTitle)) sheetTitle = "sheet";
for (int i = 0; i < sheetNum; i++) {
// 在Excel工作簿中建一工作表
String sTitle = sheetTitle + (i + 1);
XSSFSheet sheet = (XSSFSheet) workbook.createSheet(sTitle);
sheet.setSelected(true); // 设置工作薄为选中
sheet.setAutobreaks(true);
sheet.setPrintGridlines(true);
sheetList.add(sheet);
}
/** ***********************输出表头********************************* */
if (headerNum > 0) {
for (XSSFSheet sheet : sheetList) {
XSSFRow headRow = sheet.createRow(0);
headRow.setHeightInPoints(20);
for (int i = 0; i < headerNum; i++) {
List<String> headerRowDataList = tableDataList.get(i);
for (int j = 0; j < headerRowDataList.size(); j++) {
XSSFCellStyle cellStyle = (XSSFCellStyle) createDefHeaderCellStyle(workbook); // 默认表头样式
createCell(headRow, j, headerRowDataList.get(j), cellStyle);
}
}
// 固定表头
sheet.createFreezePane(0, 1);
}
}
/** *********************输出表体内容************************* */
// 设置列样式
XSSFCellStyle columnStyle = (XSSFCellStyle) workbook.createCellStyle();
columnStyle.setFillBackgroundColor(HSSFColor.GREEN.index);
columnStyle.setWrapText(true);
if (tableDataList.size() > (tableStartRowNum + 1)) {
for (int i = tableStartRowNum; i < exportRecordNum; i++) {
List<String> rowDataList = tableDataList.get(i);
XSSFRow row = null;
int currentSheet = i / CommonConst.EXCEL_MAX_EXPORT_NUM; // 当前工作表的页数
XSSFSheet sheet = sheetList.get(currentSheet);
int rowIndex = i - CommonConst.EXCEL_MAX_EXPORT_NUM * currentSheet;
row = sheet.createRow(rowIndex);
for (int colIndex = 0, colLength = rowDataList.size(); colIndex < colLength; colIndex++) {
createCell(row, colIndex, rowDataList.get(colIndex));
}
}
}
// 调整列的宽度(取第一列为基准)
for (XSSFSheet sheet : sheetList) {
for (int i = 0; i < tableDataList.get(0).size(); i++) {
sheet.autoSizeColumn((short) i);
sheet.setColumnWidth((short) i, (short) (sheet.getColumnWidth((short) i) + 1000));
}
}
return workbook;
}
/**
* Sets a flag indicating whether this sheet is selected.
*
* <p>Note: multiple sheets can be selected, but only one sheet can be active at one time.
*
* @param value <code>true</code> if this sheet is selected
* @see Workbook#setActiveSheet(int)
*/
public void setSelected(boolean value) {
_sh.setSelected(value);
}