本文实例讲述了spring boot读取Excel操作。分享给大家供大家参考，具体如下：
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首先引入相关依赖
org.apache.poi
poi
3.17
org.apache.poi
poi-ooxml
3.17
工具类
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.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
public class OfficeUtils {
protected static final Logger logger = LoggerFactory.getLogger(OfficeUtils.class);
public static Map> readExcelContentz(MultipartFile file) throws Exception {
Map> content = new HashMap>();
// 上传文件名
Workbook wb = getWb(file);
if (wb == null) {
throw new BusinessException(ErrorType.WORK_BOOK_EMPTY);
}
Sheet sheet = wb.getSheetAt(0);
// 得到总行数
int rowNum = sheet.getLastRowNum();
Row row = sheet.getRow(0);
int colNum = row.getPhysicalNumberOfCells();
// 正文内容应该从第二行开始,第一行为表头的标题
for (int i = 1; i <= rowNum; i++) {
row = sheet.getRow(i);
int j = 0;
Map cellValue = new HashMap();
while (j < colNum) {
Object obj = getCellFormatValue(row.getCell(j));
cellValue.put(j, obj);
j++;
}
content.put(i, cellValue);
}
return content;
}
//根据Cell类型设置数据
private static Object getCellFormatValue(Cell cell) {
Object cellvalue = "";
if (cell != null) {
switch (cell.getCellTypeEnum()) {
case NUMERIC:
cellvalue = String.valueOf(cell.getNumericCellValue());
break;
case FORMULA: {
cellvalue = cell.getDateCellValue();
break;
}
case STRING:
cellvalue = cell.getRichStringCellValue().getString();
break;
default:
cellvalue = "";
}
} else {
cellvalue = "";
}
return cellvalue;
}
private static Workbook getWb(MultipartFile mf) {
String filepath = mf.getOriginalFilename();
String ext = filepath.substring(filepath.lastIndexOf("."));
Workbook wb = null;
try {
InputStream is = mf.getInputStream();
if (".xls".equals(ext)) {
wb = new HSSFWorkbook(is);
} else if (".xlsx".equals(ext)) {
wb = new XSSFWorkbook(is);
} else {
wb = null;
}
} catch (FileNotFoundException e) {
logger.error("FileNotFoundException", e);
} catch (IOException e) {
logger.error("IOException", e);
}
return wb;
}
}
service层
