excel导出的方法有哪些

发布时间：2021-10-14 09:08:34 作者：iii
来源：亿速云阅读：147

这篇文章主要介绍“excel导出的方法有哪些”，在日常操作中，相信很多人在excel导出的方法有哪些问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”excel导出的方法有哪些”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

1、前端 JS导出excel

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <title>haha</title>
	<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <script type="text/javascript" language="javascript">
        $(document).ready(function () {
            jQuery.support.cors = true;

            $('#JQuery_AJAX_Test').click(function () {
              $.ajax({
                     type: "POST",
                     url: "http://localhost:18067/manage/orders/export",
					 xhrFields: { responseType: "blob" }, //关键代码
                     data: "{\"batchExport\":true}",
                     contentType:"application/json",
					 beforeSend: function(request) {
						request.setRequestHeader("Authorization","5640edc3-49d3-435d-909e-daea076e6890");
					 },
                     success: function(retData){
						dl(retData, "abc.xlsx");
                     },
					 error: function(e) {
						alert(e.toString());
					 }
                     });
            });
        });
		
		function dl(data, fileName) {
		 if (!data) {
		   return
		 }
		 let url = window.URL.createObjectURL(new Blob([data]))
		 let link = document.createElement('a');
		 link.style.display = 'none';
		 link.href = url;
		 link.setAttribute('download', fileName);
		 document.body.appendChild(link);
		 link.click();
		}
    </script>
</head>
<body> 
    <a href="#" id="JQuery_AJAX_Test">JQuery AJAX Test</a><br/>
    <div id="result"></div>
</body>
</html>

2、服务端代码

import cn.hutool.core.util.URLUtil;
import cn.hutool.poi.excel.ExcelReader;
import cn.hutool.poi.excel.ExcelUtil;
import cn.hutool.poi.excel.ExcelWriter;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.Map;
import java.util.Objects;

/**
 * Description ExcelHelper
 * Date 2021/3/25 11:43
 *
 * @author by mays
 */
@Slf4j
public class ExcelHelper {

    /**
     *
     * @param response response
     * @param rows rows
     * @param headerAlias headerAlias
     * @throws IOException IOException
     */
    public static void excelWriter(HttpServletResponse response,
                                   //List<Map<String, Object>> rows,
                                   List<Object> rows,
                                   Map<String, String> headerAlias) throws IOException {
        String fileName = URLUtil.encode(String.format("tmp-%s.xlsx", LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS"))));
        ExcelWriter excelWriter = ExcelUtil.getBigWriter();
        excelWriter.setHeaderAlias(headerAlias);

        // 一次性写出内容，使用默认样式，强制输出标题
        excelWriter.write(rows, true);

        // 设置所有列为自动宽度，不考虑合并单元格
        SXSSFSheet sheet = (SXSSFSheet) excelWriter.getSheet();
        sheet.trackAllColumnsForAutoSizing();
        excelWriter.autoSizeColumnAll();

        //response设置excel类型
        response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
        response.setContentType("application/vnd.ms-excel;charset=UTF-8");
        response.addHeader("Cache-Control", "no-cache");
        response.setHeader("Content-Disposition", "attachment;filename=" + fileName);

        //写出到的目标流
        excelWriter.flush(response.getOutputStream(), true);
        excelWriter.close();
    }

    /**
     *
     * @param file file
     * @return ExcelReader
     * @throws IOException IOException
     */
    public static ExcelReader getExcelReader(MultipartFile file) throws IOException {
        if (Objects.isNull(file) || StringUtils.isBlank(file.getOriginalFilename())) {
            throw new IllegalArgumentException("文件为空");
        } else if (!(file.getOriginalFilename().endsWith(".xlsx")
                || file.getOriginalFilename().endsWith(".xls"))) {
            throw new IllegalArgumentException("请上传excel");
        }

        File f = File.createTempFile("pwo-", file.getOriginalFilename());
        file.transferTo(f);

        ExcelReader excelReader = new ExcelReader(f, 0);
        int rowCount = excelReader.getRowCount();
        if (rowCount < 1) {
            throw new IllegalArgumentException("内容为空");
        } else if (rowCount > 1000) {
            throw new IllegalArgumentException("须导入少于1000条的记录");
        }

        return excelReader;
    }
}

3、maven依赖

        <!--poi excel about-->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>4.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml-schemas</artifactId>
            <version>4.1.2</version>
        </dependency>

        <!-- hutool -->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>4.6.3</version>
        </dependency>

到此，关于“excel导出的方法有哪些”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注亿速云网站，小编会继续努力为大家带来更多实用的文章！

excel导出的方法有哪些

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