使用场景:导入excl表格
package com.devframe.common.util;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFDataFormatter;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
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;
/**
- Excel 导入数据相关工具类的使用
- @author chenhang
*/
public class ExcelReader1 {
/**
* 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());
}
return "";
}
public static String getCellValue1(Cell cell) {
String result = new String();
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_NUMERIC:// 数字类型
if (HSSFDateUtil.isCellDateFormatted(cell)) {// 处理日期格式、时间格式
SimpleDateFormat sdf = null;
if (cell.getCellStyle().getDataFormat() == HSSFDataFormat.getBuiltinFormat("h:mm")) {
sdf = new SimpleDateFormat("HH:mm");
} else {// 日期
sdf = new SimpleDateFormat("yyyy-MM-dd");
}
Date date = cell.getDateCellValue();
result = sdf.format(date);
} else if (cell.getCellStyle().getDataFormat() == 58) {
// 处理自定义日期格式:m月d日(通过判断单元格的格式id解决,id的值是58)
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
double value = cell.getNumericCellValue();
Date date = org.apache.poi.ss.usermodel.DateUtil.getJavaDate(value);
result = sdf.format(date);
} else {
HSSFDataFormatter dataFormatter = new HSSFDataFormatter();
result = dataFormatter.formatCellValue(cell);
/*
* double value = cell.getNumericCellValue(); CellStyle style =
* cell.getCellStyle(); DecimalFormat format = new
* DecimalFormat(); String temp = style.getDataFormatString();
* // 单元格设置成常规 if (temp.equals("General")) {
* format.applyPattern("#"); } result = format.format(value);
*/
}
break;
case HSSFCell.CELL_TYPE_STRING:// String类型
result = cell.getRichStringCellValue().toString();
break;
case HSSFCell.CELL_TYPE_BLANK:
result = "";
default:
result = "";
break;
}
return result;
}
/**
* 合并单元格处理,获取合并行
*
* @param sheet
* @return List<CellRangeAddress>
*/
public List<CellRangeAddress> getCombineCell(Sheet sheet) {
List<CellRangeAddress> list = new ArrayList<CellRangeAddress>();
// 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;
}
private int getRowNum(List<CellRangeAddress> 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 String isCombineCell(List<CellRangeAddress> 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;
}
}