1.接收上传的excel文件流,取出第一个sheet文章来源:https://www.toymoban.com/news/detail-644378.html
@ApiOperation("【干部管理】根据excel导入干部和企业")
@PostMapping("/importExcel")
@Transactional
public Result importExcel(@RequestParam MultipartFile file) throws IOException {
Logger logger = LoggerFactory.getLogger(getClass());
ExcelReader reader = ExcelUtil.getReader(file.getInputStream());
List<Sheet> sheets = reader.getSheets();
Sheet rows = sheets.get(0);
List<Map<String, String>> sheetData = ImportExcelUtil.getSheetData(rows);
return null;
}
2.ImportExcelUtil 工具类文章来源地址https://www.toymoban.com/news/detail-644378.html
package com.enterprise.util.excel;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import java.math.BigDecimal;
import java.util.*;
//读取excel工具类
public class ImportExcelUtil {
/**
* 读取Sheet 的所有数据
* @param rows
* @return
*/
public static List<Map<String, String>> getSheetData(Sheet rows){
Map<Integer, String> tableHeader=new HashMap<Integer, String>();
List<Map<String, String>> list=new ArrayList<Map<String, String>>();
int rowNum=0;
Iterator<Row> rowIterator = rows.rowIterator();
while (rowIterator.hasNext()){
Row row = rowIterator.next();
Iterator<Cell> cellIterator = row.cellIterator();
int column=0;
Map<String, String> tdata=new HashMap<>();
while(cellIterator.hasNext()){
Cell next = cellIterator.next();
int columnIndex = next.getColumnIndex();
String cellValue = getCellValue(next);
if(rowNum == 0){
//第0行,表头
tableHeader.put(column,cellValue);
}else {
tdata.put(tableHeader.get(columnIndex),cellValue);
}
column++;
}
if(rowNum != 0){
list.add(tdata);
}
rowNum ++;
}
return list;
}
private static String getCellValue(Cell cell) {
CellType cellType = cell.getCellType();
if (cellType == CellType.STRING){
String stringCellValue = cell.getStringCellValue();
return stringCellValue;
}else if (cellType == CellType.NUMERIC){
Double value = cell.getNumericCellValue();
BigDecimal bd1 = new BigDecimal(Double.toString(value));
// 去掉后面无用的零 如小数点后面全是零则去掉小数点
String s = "";
if (bd1.toPlainString().contains(".")){
s = bd1.toPlainString().replaceAll("0+?$", "").replaceAll("[.]$", "");
}else{
s = bd1.toPlainString();
}
return s;
}
return "";
}
}
到了这里,关于hutool 读取每个sheet,数据转成List<Map<>>的格式的文章就介绍完了。如果您还想了解更多内容,请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章,希望大家以后多多支持TOY模板网!