PoiCellUtil.java
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package com.bckefu.excel.util;
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;
/**
* @author caoliang1918@aliyun.com
* @Date 2017/11/5:23:47
*/
public class PoiCellUtil {
/**
* 读取单元格的值
*
* @param sheet
* @param row
* @param column
* @return
*/
public static String getCellValue(Sheet sheet, int row, int column) {
String value = null;
if (isMergedRegion(sheet, row, column)) {
value = getMergedRegionValue(sheet, row, column);
} else {
Row rowData = sheet.getRow(row);
Cell cell = rowData.getCell(column);
value = getCellValue(cell);
}
return value;
}
/**
* 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
* @param column
* @return
*/
public static boolean isMergedRegion(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) {
return true;
}
}
}
return false;
}
/**
* 获取单元格的值
*
* @param cell
* @return
*/
public static String getCellValue(Cell cell) {
if (cell == null) {
return "";
}
if (cell.getCellType() == Cell.CELL_TYPE_STRING) {
return cell.getStringCellValue();
} else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN) {
return String.valueOf(cell.getBooleanCellValue());
} else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA) {
return cell.getCellFormula();
} else if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC) {
return String.valueOf(cell.getNumericCellValue());
} else {
cell.setCellType(Cell.CELL_TYPE_STRING);
return cell.getStringCellValue();
}
}
}