java读取Excel表的数据

package com.shine.eiuop.utils;

import org.apache.poi.ss.usermodel.*;

import org.apache.poi.hssf.usermodel.HSSFCell;
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 java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

/**
* @ClassName ReadExcel
* @Description TODO
* @Author shuai
* @Date 2018/8/9 17:43
* @Version 1.0
**/
public class test2 {

public static void main(String[] args) {
List<Map<String, String>> retList = readExcel("D:\\SHINE_ROOT\\mspChinese_译文.xlsx");
System.out.println("文件的数据：" + retList);
for (int i = 0; i < retList.size(); i++) {
for (Entry<String, String> entry : retList.get(i).entrySet()){
System.out.println("key:"+entry.getKey()+";value:"+entry.getValue());
if ("".equals(entry.getValue())) {

}
}
}
}

public static List<Map<String, String>> readExcel(String path) {
List<Map<String, String>> retList = new ArrayList<Map<String, String>>();
File file = new File(path);
FileInputStream fis = null;
Workbook workBook = null;
if (file.exists()) {
try {
fis = new FileInputStream(file);
workBook = WorkbookFactory.create(fis);
int numberOfSheets = workBook.getNumberOfSheets();
// sheet工作表
for (int s = 0; s < numberOfSheets; s++) {
Sheet sheetAt = workBook.getSheetAt(s);
// 获取工作表名称
String sheetName = sheetAt.getSheetName();
// 获取当前Sheet的总行数
int rowsOfSheet = sheetAt.getPhysicalNumberOfRows();
// 第一行
Row row0 = sheetAt.getRow(0);
int physicalNumberOfCells = sheetAt.getRow(0).getPhysicalNumberOfCells();
String[] title = new String[physicalNumberOfCells];
for (int i = 0; i < physicalNumberOfCells; i++) {
title[i] = row0.getCell(i).getStringCellValue();
}
Integer totalCells = title.length;
for (int r = 1; r < rowsOfSheet; r++) {
Row row = sheetAt.getRow(r);
if (row == null) {
continue;
}
Map<String, String> rowMap = new HashMap<String, String>();
int rowNum = row.getRowNum() + 1;
System.out.println("当前行:" + rowNum);
/** 循环Excel的列 */
Cell cell0 = row.getCell(0);
String cellValue = "";
if (null != cell0) {
// 以下是判断数据的类型
switch (cell0.getCellType()) {
case HSSFCell.CELL_TYPE_STRING: // 字符串
cellValue = cell0.getStringCellValue();
break;
case HSSFCell.CELL_TYPE_BOOLEAN: // Boolean
cellValue = cell0.getBooleanCellValue() + "";
break;
case HSSFCell.CELL_TYPE_FORMULA: // 公式
cellValue = cell0.getCellFormula() + "";
break;
case HSSFCell.CELL_TYPE_BLANK: // 空值
cellValue = "";
break;
case HSSFCell.CELL_TYPE_ERROR: // 故障
cellValue = "非法字符";
break;
default:
cellValue = cell0.getStringCellValue();
break;
}
}
Cell cell1 = row.getCell(1);
String cell1Value = "";
if (null != cell1) {
// 以下是判断数据的类型
switch (cell1.getCellType()) {
case HSSFCell.CELL_TYPE_STRING: // 字符串
cell1Value = cell1.getStringCellValue();
break;
case HSSFCell.CELL_TYPE_BOOLEAN: // Boolean
cell1Value = cell1.getBooleanCellValue() + "";
break;
case HSSFCell.CELL_TYPE_FORMULA: // 公式
cell1Value = cell1.getCellFormula() + "";
break;
case HSSFCell.CELL_TYPE_BLANK: // 空值
cell1Value = "";
break;
case HSSFCell.CELL_TYPE_ERROR: // 故障
cell1Value = "非法字符";
break;
default:
cell1Value = cell1.getStringCellValue();
break;
}
}
rowMap.put(cellValue, cell1Value);
retList.add(rowMap);
}
}
if (fis != null) {
fis.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
System.out.println("文件不存在!");
}
return retList;
}
}