POI-OOXML依赖项无法识别

Question

我想创建一个.xlsx工作簿。按照教程中的说明和其他Stackoverflow问题（如以下所示）

无法在Apache POI中导入XSSF

<dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.12</version>
    </dependency>   

 public void readExcelWorkbook(EuropeanAwards euApp, MultipartFile file) throws IllegalStateException, IOException
    {

        File excelFile = new File(file.getOriginalFilename());
        file.transferTo(excelFile);
        FileInputStream fIP = new FileInputStream(excelFile);
        XSSFWorkbook workbook = new XSSFWorkbook(fIP);


    }

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

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

Answer 1

添加依赖项后，您似乎没有重新构建maven项目。尝试清理和构建项目。

mvn clean install