jar 包：
poi-3.13.jar
poi-ooxml-3.13.jar
poi-ooxml-schemas-3.13.jar
xmlbeans-2.6.0.jar
slf4j-api-1.4.3.jar
slf4j-log4j12-1.4.3.jar
log4j-1.2.17.jar
junit-4.10.jar
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
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.xmlbeans.impl.piccolo.io.FileFormatException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @ClassName: ReadExcelUtils
* @Description: 读取excel(兼容03和07格式)
* @author
* @company
* @date 2015年12月18日
* @version V1.0
*/
public class ReadExcelUtils {
private static final Logger log = LoggerFactory
.getLogger(ReadExcelUtils.class);
private static final String EXTENSION_XLS = "xls";
private static final String EXTENSION_XLSX = "xlsx";
/**
* 读取excel文件内容
*
* @param filePath
* @throws Exception
*/
public List> readExcel(String filePath)
throws Exception {
log.info("Start to read excel file:" + filePath);
List> list = new LinkedList>();
// 检查
this.preReadCheck(filePath);
// 获取workbook对象
Workbook workbook = null;
workbook = this.getWorkbook(filePath);
// 读文件 一个sheet一个sheet地读取
for (int numSheet = 0; numSheet < workbook
.getNumberOfSheets(); numSheet++) {
Sheet sheet = workbook.getSheetAt(numSheet);
if (sheet == null) {
continue;
}
log.info("=======================" + sheet.getSheetName()
+ "=========================");
int firstRowIndex = sheet.getFirstRowNum();
int lastRowIndex = sheet.getLastRowNum();
// 读取首行 即,表头
Row firstRow = sheet.getRow(firstRowIndex);
log.info("firstRow=" + firstRow);
if (null != firstRow) {
ConcurrentMap map = null;
// 读取数据行
for (int rowIndex = firstRowIndex
+ 1; rowIndex <= lastRowIndex; rowIndex++) {
// 当前行
Row currentRow = sheet.getRow(rowIndex);
// 首列
int firstColumnIndex = currentRow.getFirstCellNum();
// 最后一列
int lastColumnIndex = currentRow.getLastCellNum();
for (int columnIndex = firstColumnIndex; columnIndex <= lastColumnIndex; columnIndex++) {
// 标题列
Cell titleCell = firstRow.getCell(columnIndex);
// 标题列对应的值
String titleCellValue = this.getCellValue(titleCell,
true);
// 当前单元格
Cell currentCell = currentRow.getCell(columnIndex);
// 当前单元格的值
String currentCellValue = this.getCellValue(currentCell,
true);
map = new ConcurrentHashMap(16);
map.put(titleCellValue, currentCellValue);
list.add(map);
}
}
} // end of if (null != firstRow)
}
log.info("Read excel file '" + filePath + "' finished.");
return list;
}
/***
*
* 取得Workbook对象(xls和xlsx对象不同,不过都是Workbook的实现类)
* xls:HSSFWorkbook
* xlsx：XSSFWorkbook
* @param filePath
* @return
* @throws IOException
*
*/
private Workbook getWorkbook(String filePath) throws IOException {
Workbook workbook = null;
InputStream is = null;
try {
is = new FileInputStream(filePath);
if (filePath.endsWith(EXTENSION_XLS)) {
workbook = new HSSFWorkbook(is);
} else if (filePath.endsWith(EXTENSION_XLSX)) {
workbook = new XSSFWorkbook(is);
}
} catch (FileNotFoundException e) {
throw e;
} catch (IOException e) {
throw e;
} finally {
CommonsIOUtils.closeStream(is, null);
}
return workbook;
}
/**
* 文件检查
*
* @param filePath
* @throws FileNotFoundException
* @throws FileFormatException
*/
private void preReadCheck(String filePath)
throws FileNotFoundException, FileFormatException {
// 常规检查
File file = new File(filePath);
if (!file.exists()) {
throw new FileNotFoundException("传入的文件不存在：" + filePath);
}
if (!(filePath.endsWith(EXTENSION_XLS)
|| filePath.endsWith(EXTENSION_XLSX))) {
throw new FileFormatException("传入的文件不是excel");
}
}
/**
* 取单元格的值
*
* @param cell
* 单元格对象
* @param treatAsStr
* 为true时，当做文本来取值 (取到的是文本，不会把“1”取成“1.0”)
* @return
*/
private String getCellValue(Cell cell, boolean treatAsStr) {
if (cell == null) {
return "";
}
if (treatAsStr) {
// 虽然excel中设置的都是文本，但是数字文本还被读错，如“1”取成“1.0”
// 加上下面这句，临时把它当做文本来读取
cell.setCellType(Cell.CELL_TYPE_STRING);
}
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());
}
}
}
关闭 I/O 流：
public static void closeStream(InputStream is, OutputStream os) {
if (null != is) {
try {
is.close();
is = null;
} catch (IOException e) {
log.error("close InputStream fail!", e);
}
}
if (null != os) {
try {
os.close();
os = null;
} catch (IOException e) {
log.error("close OutputStream fail!", e);
}
}
}
文件内容：
测试（junit4）：
import java.util.List;
import java.util.Map;
import org.junit.Test;
public class TestReadExcelUtils {
@Test
public void readExcel() {
try {
// f:\\Test.xlsx
List> list = new ReadExcelUtils()
.readExcel("f:\\红外系统权限统计--系统设置.xls");
if (null != list && !list.isEmpty()) {
System.out.println(list);
} else {
System.out.println("Empty");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
测试结果：
[
{LEAF_=1}, {DISPLAY_NAME=图像归档日期}, {NAME=settting:imgfiledate}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=PMS远程调用地址}, {NAME=settting:pmsrpcurl}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=诊断规则列表}, {NAME=setting:rulelist}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=添加诊断规则}, {NAME=setting:addrule}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=编辑诊断规则}, {NAME=setting:editrule}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=删除诊断规则}, {NAME=setting:delrule}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=图谱特征提取列表}, {NAME=setting:charactlist}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=提取特征}, {NAME=setting:extractcharacter}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=用户管理列表}, {NAME=setting:userlist}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=添加用户}, {NAME=setting:adduser}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=编辑用户}, {NAME=setting:edituser}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=删除用户}, {NAME=setting:deluser}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=角色管理列表}, {NAME=setting:rolelist}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=添加角色}, {NAME=setting:addrole}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=编辑角色}, {NAME=setting:editrole}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=删除角色}, {NAME=setting:delrole}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=权限管理列表}, {NAME=setting:permissionlist}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=添加权限}, {NAME=setting:addperimssion}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=编辑权限}, {NAME=setting:editpermission}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=},
{LEAF_=1}, {DISPLAY_NAME=删除权限}, {NAME=setting:delpermission}, {PARENT_=CED99042927A4B0A9C5326B3C1A98601}, {MENU=Y},
{=}
]
