用POI读取具有任意合并单元的excel数据

maven依赖:

<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.9</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.9</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>3.9</version>
</dependency>
package com.wk.p3.excel.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.*; import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellRangeAddress; /**
* Created by handsome on 2016/7/11.
*/
public class ExcelUtil { public static void main(String[] args){
ExcelUtil excelUtil = new ExcelUtil(); //读取excel数据
ArrayList<Map<String,String>> result = excelUtil.readExcelToObj("C:\\Users\\handsome\\Desktop\\软文excel\\表\\表\\稿件免费媒体投放链接---上传表.xlsx");
// ArrayList<Map<String,String>> result = excelUtil.readExcelToObj("C:\\Users\\handsome\\Desktop\\软文excel\\表\\表\\稿件付费媒体投放链接---上传表.xlsx");
for(Map<String,String> map:result){
System.out.println(map);
} }
/**
* 读取excel数据
* @param path
*/
private ArrayList<Map<String,String>> readExcelToObj(String path) { Workbook wb = null;
ArrayList<Map<String,String>> result = null;
try {
wb = WorkbookFactory.create(new File(path));
result = readExcel(wb, 0, 2, 0);
} catch (InvalidFormatException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return result;
} /**
* 读取excel文件
* @param wb
* @param sheetIndex sheet页下标:从0开始
* @param startReadLine 开始读取的行:从0开始
* @param tailLine 去除最后读取的行
*/
private ArrayList<Map<String,String>> readExcel(Workbook wb,int sheetIndex, int startReadLine, int tailLine) {
Sheet sheet = wb.getSheetAt(sheetIndex);
Row row = null;
ArrayList<Map<String,String>> result = new ArrayList<Map<String,String>>();
for(int i=startReadLine; i<sheet.getLastRowNum()-tailLine+1; i++) { row = sheet.getRow(i);
Map<String,String> map = new HashMap<String,String>();
for(Cell c : row) {
String returnStr = ""; boolean isMerge = isMergedRegion(sheet, i, c.getColumnIndex());
//判断是否具有合并单元格
if(isMerge) {
String rs = getMergedRegionValue(sheet, row.getRowNum(), c.getColumnIndex());
// System.out.print(rs + "------ ");
returnStr = rs;
}else {
// System.out.print(c.getRichStringCellValue()+"++++ ");
returnStr = c.getRichStringCellValue().getString();
}
if(c.getColumnIndex()==0){
map.put("id",returnStr);
}else if(c.getColumnIndex()==1){
map.put("base",returnStr);
}else if(c.getColumnIndex()==2){
map.put("siteName",returnStr);
}else if(c.getColumnIndex()==3){
map.put("articleName",returnStr);
}else if(c.getColumnIndex()==4){
map.put("mediaName",returnStr);
}else if(c.getColumnIndex()==5){
map.put("mediaUrl",returnStr);
}else if(c.getColumnIndex()==6){
map.put("newsSource",returnStr);
}else if(c.getColumnIndex()==7){
map.put("isRecord",returnStr);
}else if(c.getColumnIndex()==8){
map.put("recordTime",returnStr);
}else if(c.getColumnIndex()==9){
map.put("remark",returnStr);
} }
result.add(map);
// System.out.println(); }
return result; } /**
* 获取合并单元格的值
* @param sheet
* @param row
* @param column
* @return
*/
public 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 ;
} /**
* 判断合并了行
* @param sheet
* @param row
* @param column
* @return
*/
private boolean isMergedRow(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;
} /**
* 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
*/
private 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;
} /**
* 判断sheet页中是否含有合并单元格
* @param sheet
* @return
*/
private boolean hasMerged(Sheet sheet) {
return sheet.getNumMergedRegions() > 0 ? true : false;
} /**
* 合并单元格
* @param sheet
* @param firstRow 开始行
* @param lastRow 结束行
* @param firstCol 开始列
* @param lastCol 结束列
*/
private void mergeRegion(Sheet sheet, int firstRow, int lastRow, int firstCol, int lastCol) {
sheet.addMergedRegion(new CellRangeAddress(firstRow, lastRow, firstCol, lastCol));
} /**
* 获取单元格的值
* @param cell
* @return
*/
public 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 "";
}
/**
* 从excel读取内容
*/
public static void readContent(String fileName) {
boolean isE2007 = false; //判断是否是excel2007格式
if(fileName.endsWith("xlsx"))
isE2007 = true;
try {
InputStream input = new FileInputStream(fileName); //建立输入流
Workbook wb = null;
//根据文件格式(2003或者2007)来初始化
if(isE2007)
wb = new XSSFWorkbook(input);
else
wb = new HSSFWorkbook(input);
Sheet sheet = wb.getSheetAt(0); //获得第一个表单
Iterator<Row> rows = sheet.rowIterator(); //获得第一个表单的迭代器
while (rows.hasNext()) {
Row row = rows.next(); //获得行数据
System.out.println("Row #" + row.getRowNum()); //获得行号从0开始
Iterator<Cell> cells = row.cellIterator(); //获得第一行的迭代器
while (cells.hasNext()) {
Cell cell = cells.next();
System.out.println("Cell #" + cell.getColumnIndex());
switch (cell.getCellType()) { //根据cell中的类型来输出数据
case HSSFCell.CELL_TYPE_NUMERIC:
System.out.println(cell.getNumericCellValue());
break;
case HSSFCell.CELL_TYPE_STRING:
System.out.println(cell.getStringCellValue());
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
System.out.println(cell.getBooleanCellValue());
break;
case HSSFCell.CELL_TYPE_FORMULA:
System.out.println(cell.getCellFormula());
break;
default:
System.out.println("unsuported sell type======="+cell.getCellType());
break;
}
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
} }
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