java:浏览器下载excel模板

1.枚举类

/**
*
* @return
* @author ZHD-xinwei.Fan
* @creed: 下载模板枚举类
* @date 2022/10/24 15:07
*/public enum DownloadTemplate {PRODUCT_IMPORT("40287c5d748a904a01748b716a630101","商品导入","商品名称, 图片地址, 商品价格, 商品分类, 促销开始, 促销结束, 上架日期");private String tid;private String name;private String title;DownloadTemplate(String tid, String name, String title) {this.tid = tid;this.name = name;this.title = title;}public String getTid() {return tid;}public void setTid(String tid) {this.tid = tid;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getName() {return name;}public void setName(String name) {this.name = name;}
}

2.工具类

import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.xssf.usermodel.*;public class Write2007Excel {// 标题字体private XSSFFont titleFont = null; //2007格式// 标题样式private XSSFCellStyle titleStyle = null;//2007格式// 行信息内容样式private XSSFCellStyle contentStyle = null;//2007格式public XSSFWorkbook addSheet(XSSFWorkbook wb, String[] titleStrs,String sheetName)  {System.out.println("sheetName"+sheetName);setExcelStyle(wb);// 执行样式初始化XSSFSheet sheet = wb.createSheet(sheetName);//2007格式XSSFRow titleRow = sheet.createRow((short) 0);//2007格式titleRow.setHeightInPoints(20);// 20像素int titleCount = titleStrs.length;// 列数// 写标题for (int k = 0; k < titleCount; k++) {XSSFCell cell = titleRow.createCell((short) k); //2007格式cell.setCellStyle(titleStyle);// 设置标题样式cell.setCellType(CellType.STRING);cell.setCellValue(titleStrs[k]);sheet.setColumnWidth((short) k, (short) 5000);// 设置列宽}return wb;}/** 样式初始化 */public void setExcelStyle(XSSFWorkbook workBook) {// 设置列标题字体，样式titleFont = workBook.createFont();titleFont.setBold(true);// 标题列样式titleStyle = workBook.createCellStyle();titleStyle.setBorderTop(BorderStyle.THIN); // 设置边框titleStyle.setBorderBottom(BorderStyle.THIN);titleStyle.setBorderLeft(BorderStyle.THIN);titleStyle.setBorderRight(BorderStyle.THIN);titleStyle.setVerticalAlignment(VerticalAlignment.CENTER);titleStyle.setAlignment(HorizontalAlignment.CENTER);titleStyle.setFont(titleFont);// 内容列样式contentStyle = workBook.createCellStyle();contentStyle.setBorderTop(BorderStyle.THIN);contentStyle.setBorderBottom(BorderStyle.THIN);contentStyle.setBorderLeft(BorderStyle.THIN);contentStyle.setBorderRight(BorderStyle.THIN);titleStyle.setVerticalAlignment(VerticalAlignment.CENTER);titleStyle.setAlignment(HorizontalAlignment.LEFT);}}

import org.apache.commons.lang.StringUtils;
import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;public class RequestUtil {public static String getFileName(HttpServletRequest request, String outfilename)throws UnsupportedEncodingException {String agent = request.getHeader("USER-AGENT");String filename = null;if (null != agent) {if (-1 != agent.indexOf("MSIE") ||-1 != agent.indexOf("Trident") || -1 != agent.indexOf("Edge")) {// ie浏览器及Edge浏览器filename = java.net.URLEncoder.encode(outfilename, "UTF-8");filename = StringUtils.replace(filename, "+", "%20");// 替换空格}else if (null != agent && -1 != agent.indexOf("Mozilla")) {// 火狐,Chrome等浏览器filename = new String(outfilename.getBytes("UTF-8"), "iso-8859-1");}else {// IE7+filename = java.net.URLEncoder.encode(outfilename, "UTF-8");filename = StringUtils.replace(filename, "+", "%20");// 替换空格}} else {filename = outfilename;}return filename;}}

3.controller

    @RequestMapping(value = "/downloadExcelFileMb", method = {RequestMethod.GET, RequestMethod.POST})public void downloadExcelFileMb(HttpServletRequest request, HttpServletResponse response, @RequestParam(required = true) String tid)  {XSSFWorkbook wb = new XSSFWorkbook();Write2007Excel we = new Write2007Excel();if (tid.equals(DownloadTemplate.PRODUCT_IMPORT.getTid())){String[] tops = DownloadTemplate.PRODUCT_IMPORT.getTitle().split(",");wb = we.addSheet(wb, tops, DownloadTemplate.PRODUCT_IMPORT.getName());OutputStream os = null;try {os = response.getOutputStream();response.setContentType("application/vnd.ms-excel");response.setHeader("Content-Disposition", "attachment; filename=\"" +  RequestUtil.getFileName(request,   DownloadTemplate.PRODUCT_IMPORT.getName()+"_模板.xlsx") + "\"");wb.write(os);os.flush();os.close();} catch (IOException e) {e.printStackTrace();}}}

4.前端调用

注：不要使用ajax调用。

 function downTem(){location.href='/product/downloadExcelFileMb?tid=40287c5d748a904a01748b716a630101'}

5.测试

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java:浏览器下载excel模板

1.枚举类

2.工具类

3.controller

4.前端调用

5.测试

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