Java开发--导出Excel工具类(封装)

导出Excel工具类

import com.alibaba.excel.EasyExcel;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.List;

@Slf4j
public class EasyExcelUtils {

    /**
     * @param sheetName 导出的名字
     * @param response  响应的请求
     * @param t         设置导出的文件类型
     * @param list      导出的list集合
     * @throws IOException            异常
     * @throws IllegalAccessException 异常
     * @throws InstantiationException 异常
     */
    public static void download(String sheetName, HttpServletResponse response, Class t, List list) throws IOException, IllegalAccessException, InstantiationException {
        try {
            response.setContentType("application/vnd.ms-excel");// 设置文本内容
            response.setCharacterEncoding("utf-8");// 设置字符编码
            String fileName = URLEncoder.encode(sheetName, "UTF-8");
            response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx"); // 设置响应头
            response.setHeader("FileName", fileName + ".xlsx");
            response.setHeader("Access-Control-Expose-Headers", "FileName");
            EasyExcel.write(response.getOutputStream(), t)
                    .autoCloseStream(Boolean.FALSE).sheet(fileName).doWrite(list); //用io流来写入数据
        } catch (Exception e) {
            log.error("EasyExcelUtils,e:{}", e.getMessage());
            e.printStackTrace();
            throw new RuntimeException();
        }

    }
    
}

详情见 Excel–导入/导出