Java-poi导入excel合并单元格
要导入的excel示例
一、Action
@Action("/import-excel")
public void toimport() {
String root = ServletActionContext.getServletContext().getRealPath("/") + fileName;
if (!StringUtils.isBlank(fileName)) {
try {
final InputStream inputStream = new FileInputStream(new File(root));
Workbook workbook = WorkbookFactory.create(inputStream);
String msg = importExcelService.importArtical(workbook);
sendMsg(true, "", msg);
} catch (final Throwable e) {
e.printStackTrace();
sendFailMsg("", "导入失败！");
}
} else {
sendFailMsg("没有发现上传文件！", "");
}
}二、ServiceImpl
service层做业务逻辑处理
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import com.bronna.util.PoiExcelUtil;
@Service
public class ImportExcelServiceImpl implements ImportExcelService {
@Override
public String importArtical(Workbook workbook) {
final Sheet xssSheet0 = workbook.getSheetAt(0);
Row row;
List cras = PoiExcelUtil.getCombineCell(xssSheet0);
for (int i = 1; i < xssSheet0.getPhysicalNumberOfRows(); i++) {
Row BigRow = xssSheet0.getRow(i);
if (BigRow == null) {
break;
}
if (PoiExcelUtil.isMergedRegion(xssSheet0, i, 0)) {
int lastRow = PoiExcelUtil.getRowNum(cras, xssSheet0.getRow(i).getCell(0), xssSheet0);
for (; i <= lastRow; i++) {
row = xssSheet0.getRow(i);
// 判断该行第5列是合并单元格
if (PoiExcelUtil.isMergedRegion(xssSheet0, i, 4)) {
int lastRow2 = PoiExcelUtil.getRowNum(cras, xssSheet0.getRow(i).getCell(4), xssSheet0);
for (; i <= lastRow2; i++) {
Row nextRow = xssSheet0.getRow(i);
AdmissionPlanPojo admissionPlan = new AdmissionPlanPojo();
buildAdmission(row, BigRow, nextRow, admissionPlan, 2);
dao.save(admissionPlan);
}
} else {
AdmissionPlanPojo admissionPlan = new AdmissionPlanPojo();
buildAdmission(row, BigRow, row, admissionPlan,1);
dao.save(admissionPlan);
}
}
i--;
} else {
row = xssSheet0.getRow(i);
AdmissionPlanPojo admissionPlan = new AdmissionPlanPojo();
buildAdmission(row, BigRow, row, admissionPlan, 1);
dao.save(admissionPlan);
}
}
return "导入成功";
}
private void buildAdmission(Row row, Row BigRow, Row nextRow, AdmissionPlanPojo admissionPlan, Integer type) {
final String yxsm = PoiExcelUtil.getCellValue(BigRow.getCell(0)); // 学院代码
admissionPlan.setYxsm(yxsm);
String yxsmc = PoiExcelUtil.getCellValue(BigRow.getCell(1)); // 学院名
admissionPlan.setYxsmc(yxsmc);
Integer yxSum = null;
if (PoiExcelUtil.getCellValue(BigRow.getCell(2)) != null) {
yxSum = Integer.valueOf(PoiExcelUtil.getCellValue(BigRow.getCell(2))); // 招生计划总规模(含推免生)
admissionPlan.setYxSum(yxSum);
}
Integer yxFree = null;
if (PoiExcelUtil.getCellValue(BigRow.getCell(3)) != null) {
yxFree = Integer.valueOf(PoiExcelUtil.getCellValue(BigRow.getCell(3))); // 推免生
admissionPlan.setYxFree(yxFree);
}
String zydm = PoiExcelUtil.getCellValue(row.getCell(4));
admissionPlan.setZydm(zydm); // 专业代码
admissionPlan.setZymc(PoiExcelUtil.getCellValue(row.getCell(5))); // 专业
Integer zySum = Integer.valueOf(PoiExcelUtil.getCellValue(row.getCell(6))); // 招生计划总规模(含推免生)
admissionPlan.setZySum(zySum);
Integer zyFree = Integer.valueOf(PoiExcelUtil.getCellValue(row.getCell(7)));// 推免生
admissionPlan.setZyFree(zyFree);
String xxfs = PoiExcelUtil.getCellValue(nextRow.getCell(8)); // 学习方式
admissionPlan.setXxfs(xxfs);
Integer xxfsSum = Integer.valueOf(PoiExcelUtil.getCellValue(nextRow.getCell(9))); // 招生计划总规模(不含推免生)
admissionPlan.setXxfsSum(xxfsSum);
Integer xxfsFree = Integer.valueOf(PoiExcelUtil.getCellValue(nextRow.getCell(10))); // 推免生
admissionPlan.setXxfsFree(xxfsFree);
admissionPlan.setCreateTime(new Date());
admissionPlan.setLastUpdateTime(new Date());
}
}
三、工具类
package com.bronna.util;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.util.CellRangeAddress;
/**
* 功能: poi导出excel工具类 date: 2018年9月5日 上午10:15:51
*
* @author sxxu@wisdombudcom
* @version
* @since JDK 1.7
*/
public class PoiExcelUtil {
/**
* 获取单元格的值
*
* @param fCell
* @return
*/
public static String getCellValue(Cell fCell) {
if (fCell == null)
return null;
if (fCell.getCellType() == Cell.CELL_TYPE_STRING) {
return fCell.getStringCellValue();
} else if (fCell.getCellType() == Cell.CELL_TYPE_BOOLEAN) {
return String.valueOf(fCell.getBooleanCellValue());
} else if (fCell.getCellType() == Cell.CELL_TYPE_FORMULA) {
return fCell.getCellFormula();
} else if (fCell.getCellType() == Cell.CELL_TYPE_NUMERIC) {
return String.valueOf(fCell.getNumericCellValue());
}
return null;
}
/**
* 合并单元格处理,获取合并行
*
* @param sheet
* @return List
*/
public static List getCombineCell(Sheet sheet) {
List list = new ArrayList();
// 获得一个 sheet 中合并单元格的数量
int sheetmergerCount = sheet.getNumMergedRegions();
// 遍历所有的合并单元格
for (int i = 0; i < sheetmergerCount; i++) {
// 获得合并单元格保存进list中
CellRangeAddress ca = sheet.getMergedRegion(i);
list.add(ca);
}
return list;
}
public static int getRowNum(List listCombineCell, Cell cell, Sheet sheet) {
int xr = 0;
int firstC = 0;
int lastC = 0;
int firstR = 0;
int lastR = 0;
for (CellRangeAddress ca : listCombineCell) {
// 获得合并单元格的起始行, 结束行, 起始列, 结束列
firstC = ca.getFirstColumn();
lastC = ca.getLastColumn();
firstR = ca.getFirstRow();
lastR = ca.getLastRow();
if (cell.getRowIndex() >= firstR && cell.getRowIndex() <= lastR) {
if (cell.getColumnIndex() >= firstC && cell.getColumnIndex() <= lastC) {
xr = lastR;
}
}
}
return xr;
}
/**
* 判断单元格是否为合并单元格，是的话则将单元格的值返回
*
* @param listCombineCell
* 存放合并单元格的list
* @param cell
* 需要判断的单元格
* @param sheet
* sheet
* @return
*/
public static String isCombineCell(List listCombineCell, Cell cell, Sheet sheet) throws Exception {
int firstC = 0;
int lastC = 0;
int firstR = 0;
int lastR = 0;
String cellValue = null;
for (CellRangeAddress ca : listCombineCell) {
// 获得合并单元格的起始行, 结束行, 起始列, 结束列
firstC = ca.getFirstColumn();
lastC = ca.getLastColumn();
firstR = ca.getFirstRow();
lastR = ca.getLastRow();
if (cell.getRowIndex() >= firstR && cell.getRowIndex() <= lastR) {
if (cell.getColumnIndex() >= firstC && cell.getColumnIndex() <= lastC) {
Row fRow = sheet.getRow(firstR);
Cell fCell = fRow.getCell(firstC);
cellValue = getCellValue(fCell);
break;
}
} else {
cellValue = "";
}
}
return cellValue;
}
/**
* 获取合并单元格的值
*
* @param sheet
* @param row
* @param column
* @return
*/
public static String getMergedRegionValue(Sheet sheet, int row, int column) {
int sheetMergeCount = sheet.getNumMergedRegions();
for (int i = 0; i < sheetMergeCount; i++) {
CellRangeAddress ca = sheet.getMergedRegion(i);
int firstColumn = ca.getFirstColumn();
int lastColumn = ca.getLastColumn();
int firstRow = ca.getFirstRow();
int lastRow = ca.getLastRow();
if (row >= firstRow && row <= lastRow) {
if (column >= firstColumn && column <= lastColumn) {
Row fRow = sheet.getRow(firstRow);
Cell fCell = fRow.getCell(firstColumn);
return getCellValue(fCell);
}
}
}
return null;
}
/**
* 判断指定的单元格是否是合并单元格
*
* @param sheet
* @param row
* 行下标
* @param column
* 列下标
* @return
*/
public static boolean isMergedRegion(Sheet sheet, int row, int column) {
int sheetMergeCount = sheet.getNumMergedRegions();
for (int i = 0; i < sheetMergeCount; i++) {
CellRangeAddress range = sheet.getMergedRegion(i);
int firstColumn = range.getFirstColumn();
int lastColumn = range.getLastColumn();
int firstRow = range.getFirstRow();
int lastRow = range.getLastRow();
if (row >= firstRow && row <= lastRow) {
if (column >= firstColumn && column <= lastColumn) {
return true;
}
}
}
return false;
}
}