java使用easypoi导出excel文件，并支持在excel文件里面插入文件

引入依赖

compile group: 'cn.afterturn',name:'easypoi-spring-boot-starter',version:'4.1.0'

这个好像不支持用office打开

@Data
public class EmployeeWithFileLinkDTO {

    @Excel(name = "员工ID", width = 15)
    private Long id;

    @Excel(name = "员工姓名", width = 15)
    private String name;

    @Excel(name = "图片")
    private String image;

    public EmployeeWithFileLinkDTO() {

    }

    public EmployeeWithFileLinkDTO(Long id, String name, String image) {
        this.id = id;
        this.name = name;
        this.image = image;
    }
}

import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
import io.swagger.annotations.Api;
import org.apache.poi.common.usermodel.HyperlinkType;
import org.apache.poi.ss.usermodel.*;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@RestController("excelExportController")
@Api(tags = "excel")
@RequestMapping(value = "/excel")
public class ExcelExportController {

    @GetMapping("/exportExcel")
    public void exportExcel(HttpServletResponse response) throws IOException {
        // 创建数据
        List<EmployeeWithFileLinkDTO> employees = new ArrayList<>();
        List<EmployeeWithFileLinkDTO> employees2 = new ArrayList<>();
        EmployeeWithFileLinkDTO employee1 = new EmployeeWithFileLinkDTO(1L, "张三", "a.png");
        EmployeeWithFileLinkDTO employee2 = new EmployeeWithFileLinkDTO(2L, "李四", "aa.jpg");
        employees.add(employee1);
        employees.add(employee2);
        employees2.add(employee1);
        employees2.add(employee2);
        int size = employees.size();
        // 创建Excel导出参数
        ExportParams exportParams = new ExportParams();
        exportParams.setType(ExcelType.XSSF);

        // 导出Excel
        Workbook workbook = ExcelExportUtil.exportExcel(exportParams, EmployeeWithFileLinkDTO.class, employees);

        // 在Excel中插入超链接
        Sheet sheet = workbook.getSheetAt(0);
        int linkColumnIndex = 2; // 指定要插入超链接的列索引（这里假设是第3列）
        CreationHelper creationHelper = workbook.getCreationHelper();

        for (int rowIndex = 1; rowIndex <= size; rowIndex++) {
            Row row = sheet.getRow(rowIndex);
            Cell cell = row.createCell(linkColumnIndex);

            // 设置超链接
            Hyperlink hyperlink = creationHelper.createHyperlink(HyperlinkType.FILE);
            hyperlink.setAddress("http://192.168.1.1/" + employees2.get(rowIndex-1).getImage());
            //如果是将文件和excel放在同一个文件夹里面可以用下面这个代码
            //hyperlink.setAddress("./" + employees2.get(rowIndex-1).getImage());
            cell.setHyperlink(hyperlink);

            // 设置链接显示文本（可选）
            cell.setCellValue("点击打开文件");
        }

        // 保存Excel文件
        FileOutputStream fos = new FileOutputStream("employee_info.xlsx");
        workbook.write(fos);


        // 设置响应头信息
        response.setHeader("Content-Disposition", "attachment;filename=employee_info.xlsx");
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");

        // 将Workbook写入响应流
        workbook.write(response.getOutputStream());
        fos.close();
        workbook.close(); // 关闭Workbook

        // 关闭文件流
        response.getOutputStream().close();
    }
}

导出后的效果