java按sheet页签解析excel文件

今天在网上找了个java解析excel的代码，发现与项目不太符合，于是就改造了一下，可以分sheet页签来分页解析excel，感觉用处挺大的，分享给大家。

package com.hikvision.cms.modules.reverseconf.utils;

import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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;

public class ReadExcel {
	
	public static Map<String,ArrayList<ArrayList<String>>> readExcel(String fileName, String path) {
		Map<String,ArrayList<ArrayList<String>>> map = new HashMap<String, ArrayList<ArrayList<String>>>();
		
		try {
			Workbook workBook = null;
			try {
				workBook = new XSSFWorkbook(path + "\\" + fileName);
			} catch (Exception ex) {
				workBook = new HSSFWorkbook(new FileInputStream(path + "\\"
						+ fileName));
			}

			for (int numSheet = 0; numSheet < workBook.getNumberOfSheets(); numSheet++) {
				ArrayList<ArrayList<String>> Row = new ArrayList<ArrayList<String>>();
				Sheet sheet = workBook.getSheetAt(numSheet);
				if (sheet == null) {
					continue;
				}
				// 循环行Row
				for (int rowNum = 1; rowNum <= sheet.getLastRowNum(); rowNum++) {
					Row row = sheet.getRow(rowNum);
					if (row == null) {
						continue;
					}

					// 循环列Cell
					ArrayList<String> arrCell = new ArrayList<String>();
					for (int cellNum = 0; cellNum < row.getLastCellNum(); cellNum++) {
						Cell cell = row.getCell(cellNum);
						if (cell == null) {
							cell = row.createCell(cellNum);
							cell.setCellValue("");
						}
						arrCell.add(getValue(cell));
					}
					Row.add(arrCell);
				}
				map.put(String.valueOf(numSheet), Row);
			}
		} catch (IOException e) {
			System.out.println("e:" + e);
		}

		return map;
	}

	@SuppressWarnings("static-access")
	private static String getValue(Cell cell) {
		if (cell.getCellType() == cell.CELL_TYPE_BOOLEAN) {
			return String.valueOf(cell.getBooleanCellValue());
		} else if (cell.getCellType() == cell.CELL_TYPE_NUMERIC) {
			return String.valueOf(cell.getNumericCellValue());
		} else {
			return String.valueOf(cell.getStringCellValue());
		}
	}

	/**
	 * 返回map
	 * key:sheet页签
	 * value:List里面的String[]为一行的数据
	 * @param sheet
	 * @return
	 */
	public static Map<String,List<String[]>> analysisExcel(String fileName, String path){
		Map<String,ArrayList<ArrayList<String>>> sheet = readExcel(fileName, path);
		Map<String,List<String[]>> map = new HashMap<String, List<String[]>>();
		for (int i=0;i<sheet.size();i++) {
			ArrayList<ArrayList<String>> row = sheet.get(String.valueOf(i));
			List<String[]> list = new ArrayList<String[]>();
			if(row.size()>0){
				for(int j=0;j<row.size();j++){
					ArrayList<String> cell = row.get(j);
					String[] c = new String[cell.size()];
					for(int k=0;k<cell.size();k++){
						c[k] = cell.get(k);
					}
					list.add(c);
				}
			}
			map.put(String.valueOf(i), list);
		}
		return map;
	}
	
	public static void main(String[] args) {
		
		Map<String,List<String[]>> list = analysisExcel("TEST1.xls",
				"D:\\Program Files\\Java");
		for(int i=0;i<list.size();i++){
			List<String[]> l = list.get("0");
			System.out.println(l);
		}
	}
}