poi-ooxml 导入Excle

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导入依赖

<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.17</version>
</dependency>

获得目录下的文件名

File file = new File("//localhost/Middle_Dir/bomtoerp/"+request.getParameter("filename"));

 list = getAllExcel(file);//这里调用函数来获取每个目录下的Excel中数据

复制java代码

// 遍历获取Excel表格中的数据
public List<List<String>> getAllExcel(File file) throws FileNotFoundException, IOException, ClassNotFoundException,
InstantiationException, IllegalAccessException,
NoSuchMethodException, SecurityException, IllegalArgumentException,
InvocationTargetException, POIXMLException {
	List<List<String>> listt = new ArrayList<List<String>>();
try {
	FileInputStream fis = new FileInputStream(file);
	Workbook workbook = null;
	workbook = new XSSFWorkbook(fis);
	Sheet sheet = workbook.getSheetAt(0);
	int skey = -1;
	int pkey = -1;
		for (int j = 2; j < sheet.getPhysicalNumberOfRows(); j++){ // 获取每行
			List<String> list = new ArrayList<String>();
			XSSFRow row = (XSSFRow) sheet.getRow(j);
			if(row!=null){
				boolean torf=false;
					for (int k = 0; k < sheet.getRow(0).getPhysicalNumberOfCells(); k++){ // 获取每个单元格

						Cell cell = row.getCell(k);
						if (cell == null){
							list.add("<td></td>");
							continue;
						}
			switch(cell.getCellType()){
				case Cell.CELL_TYPE_STRING:
				String cellval = cell.getRichStringCellValue().getString();
				if(0 == k){
					list.add("<td>"+cellval+"</td>");
					String str = PlmtoErpService.selectcinvinfo(cellval);//通过具体行数据查询

					list.add("<td><span id='textclass"+(j-2)+'-'+k+"'>"+str+"</span></td>");
				}else if(6 == k){
					list.add("<td>"+cellval+"</td>");
    			   String str2 = PlmtoErpService.selectcinvinfo(cellval);//通过规格获得编码
					list.add("<td><span id='textclass"+(j-2)+'-'+(k+1)+"'>"+str2+"</span></td>");
				}else {
					list.add("<td>"+cellval+"</td>");
				}
				torf=true;
				break;
				default:list.add("<td></td>");
				break;
		}
}
				if(torf){
					listt.add(list);
			}
	}
}
 			  fis.close();
   	 } catch (IOException e) {
    e.printStackTrace();
    }
    return listt;
  }