Alibaba Excel tool easyExcel

Development met today needs to be exported excel spreadsheet, select the online Ali easyExcel
line of code inside the Ali demo

/**
     * 文件下载
     * <p>
     * 1. 创建excel对应的实体对象 参照{@link DownloadData}
     * <p>
     * 2. 设置返回的 参数
     * <p>
     * 3. 直接写，这里注意，finish的时候会自动关闭OutputStream,当然你外面再关闭流问题不大
     */
    @GetMapping("download")
    public void download(HttpServletResponse response) throws IOException {
        // 这里注意 有同学反应下载的文件名不对。这个时候 请别使用swagger 他会影像
        response.setContentType("application/vnd.ms-excel");
        response.setCharacterEncoding("utf-8");
        response.setHeader("Content-disposition", "attachment;filename=demo.xlsx");
        EasyExcel.write(response.getOutputStream(), DownloadData.class).sheet("模板").doWrite(data());
    }
    private List<DownloadData> data() {
        List<DownloadData> list = new ArrayList<DownloadData>();
        for (int i = 0; i < 10; i++) {
            DownloadData data = new DownloadData();
            data.setString("字符串" + 0);
            data.setDate(new Date());
            data.setDoubleData(0.56);
            list.add(data);
        }
        return list;
    }

DownloadData objects

@Data
public class DownloadData {
    @ExcelProperty("字符串标题")
    private String string;
    @ExcelProperty("日期标题")
    private Date date;
    @ExcelProperty("数字标题")
    private Double doubleData;
}

These codes themselves then packaged into a utility class ExcelUtils

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

import javax.servlet.http.HttpServletResponse;
import java.util.List;

@Slf4j
public class ExcelUtils {
    public static void downLoadExcel(HttpServletResponse response,Class<?> clazz,List<?> data,String fileName){
        try {
            response.setContentType("application/vnd.ms-excel");
            response.setCharacterEncoding("utf-8");
            response.setHeader("Content-disposition", "attachment;filename="+fileName+".xlsx");
            EasyExcel.write(response.getOutputStream(),clazz).sheet("sheet1").doWrite(data);
        }catch (Exception e){
            log.error("excel处理异常：" + e);
        }

    }
}

use

ExcelUtils.downLoadExcel(response,DownloadDTO.class,data(), “xiazai”)

The tool also has a small bug, is the filename after the Chinese can not be downloaded or become a ____. XLSX
git address
https://github.com/alibaba/easyexcel