java代码：
1、pom
<!-- poi--> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.17</version> </dependency>
2、导出工具类ExportExcelUtils 注：其中一些背景色不显示可能是HSSFColor对xsl的兼容性问题 具体到什么包就不说了（pom引对应该都没问题）
package com.hsing.wooxabbs.common.utils; import com.alibaba.excel.EasyExcel; import com.alibaba.excel.support.ExcelTypeEnum; import com.hsing.wooxabbs.entity.User; import lombok.extern.slf4j.Slf4j; import org.apache.poi.hssf.usermodel.*; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.ss.usermodel.BorderStyle; import org.apache.poi.ss.usermodel.FillPatternType; import org.apache.poi.ss.usermodel.HorizontalAlignment; import org.apache.poi.ss.usermodel.VerticalAlignment; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.util.IOUtils; import org.springframework.stereotype.Component; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServletResponse; import java.io.File; import java.io.FileInputStream; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.util.List; /** * @author:xing.Li * @date:2020/3/9 19:57 */ @Component @Slf4j public class ExportExcelUtils { private static Short Color_bg_White = HSSFColor.WHITE.index; public HSSFWorkbook expotr(List<User> list){ //工作空间 HSSFWorkbook workbook = new HSSFWorkbook(); //第1张工作表 HSSFSheet sheet1 = workbook.createSheet("用户列表"); sheet1.setDefaultRowHeightInPoints(25);//行高 sheet1.setDefaultColumnWidth(25);//列宽 //行标题//行表头 setTitle( workbook,sheet1); //行数据体 if (list.size()>0){ list.forEach(WooUtils.consumerWithIndex((user, index) ->{ HSSFRow bodyRow = null; bodyRow = sheet1.createRow(sheet1.getLastRowNum() + 1); bodyRow.createCell(0).setCellValue(index+1); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getId()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getRealName()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getUserName()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getPassWord()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getPhone()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getEmailBox()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getAvatarColor()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getSex()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getIsLogin()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getIsDelete()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getIsActivation()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getIsDisable()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getCreateTime()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getUpdateTime()); bodyRow.createCell(bodyRow.getLastCellNum()).setCellValue(user.getRoleName()); bodyRow.setHeightInPoints(20);//设置row的行高 for (int j = 0; j <bodyRow.getLastCellNum(); j++) { bodyRow.getCell(j).setCellStyle(getBodyStyle(workbook,Color_bg_White,10));//tianlan HSSFColor.SKY_BLUE.index } })); } return workbook ; } /*** * 设置表头 * * @param workbook * @param sheet */ private void setTitle(HSSFWorkbook workbook, HSSFSheet sheet) { //行标题 HSSFRow titleRow = sheet.createRow(0); titleRow.createCell(0).setCellValue("用户列表"); sheet.addMergedRegion(new CellRangeAddress(0,0,0,16));////合并单元格 titleRow.setHeightInPoints(25);//设置row的行高 titleRow.getCell(0).setCellStyle(getCellStyle(workbook,Color_bg_White,20));//tianlan HSSFColor.SKY_BLUE.index //行表头 sheet.setColumnWidth(0,256*10+184); HSSFRow headRow = sheet.createRow(sheet.getLastRowNum() + 1); headRow.setHeightInPoints(25);//设置row的行高 headRow.createCell(0).setCellValue("序号"); headRow.createCell(headRow.getLastCellNum()).setCellValue("id"); headRow.createCell(headRow.getLastCellNum()).setCellValue("真实姓名"); headRow.createCell(headRow.getLastCellNum()).setCellValue("登录名"); headRow.createCell(headRow.getLastCellNum()).setCellValue("密码"); headRow.createCell(headRow.getLastCellNum()).setCellValue("电话"); headRow.createCell(headRow.getLastCellNum()).setCellValue("邮箱"); headRow.createCell(headRow.getLastCellNum()).setCellValue("邮箱颜色"); headRow.createCell(headRow.getLastCellNum()).setCellValue("性别 1男0女"); headRow.createCell(headRow.getLastCellNum()).setCellValue("是否登录1登录"); headRow.createCell(headRow.getLastCellNum()).setCellValue("是否删除1存在"); headRow.createCell(headRow.getLastCellNum()).setCellValue("是否激活1激活"); headRow.createCell(headRow.getLastCellNum()).setCellValue("是否启用1启用"); headRow.createCell(headRow.getLastCellNum()).setCellValue("创建时间"); headRow.createCell(headRow.getLastCellNum()).setCellValue("修改时间"); headRow.createCell(headRow.getLastCellNum()).setCellValue("角色权限"); //行表头单元格设置样式 for(int h = 0; h < headRow.getLastCellNum() ; h ++) { headRow.getCell(h).setCellStyle(getCellStyle(workbook,Color_bg_White,14));//huise HSSFColor.GREY_25_PERCENT.index } } /** * 设置标题样式 * @param workbook 工作空间 * @return */ public HSSFCellStyle getCellStyle(HSSFWorkbook workbook, short bg, int fontSize) { HSSFCellStyle cellStyle = workbook.createCellStyle(); cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);//单元格-垂直居中 cellStyle.setAlignment(HorizontalAlignment.CENTER);//单元格-水平居中 cellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);//背景色-方块填充 cellStyle.setFillForegroundColor(bg);//前背景色 cellStyle.setFillBackgroundColor(HSSFColor.LIGHT_YELLOW.index);//后背景色-浅黄 //设置边框 cellStyle.setBorderBottom(BorderStyle.THIN); //下边框 cellStyle.setBorderLeft(BorderStyle.DASH_DOT_DOT);//左边框 cellStyle.setBorderTop(BorderStyle.THIN);//上边框 cellStyle.setBorderRight(BorderStyle.THIN);//右边框 cellStyle.setBottomBorderColor(HSSFColor.DARK_RED.index);//底边框颜色-暗红 //日期显示格式 cellStyle.setDataFormat(HSSFDataFormat.getBuiltinFormat("m-d-yy h:mm:ss")); //设置自动换行 cellStyle.setWrapText(true); //设置字体 cellStyle.setFont(getFont(workbook,fontSize)); return cellStyle; } public HSSFCellStyle getBodyStyle(HSSFWorkbook workbook, short bg, int fontSize) { HSSFCellStyle cellStyle = workbook.createCellStyle(); cellStyle.setVerticalAlignment(VerticalAlignment.CENTER);//单元格-垂直居中 cellStyle.setAlignment(HorizontalAlignment.LEFT);//单元格-水平居左 return cellStyle; } /** * 获取设置好的字体 * @param workbook 工作空间 fontSize 字体大小 * @return */ public HSSFFont getFont(HSSFWorkbook workbook, int fontSize) { HSSFFont fontStyle = workbook.createFont(); fontStyle.setFontName("宋体");//名称-宋体 fontStyle.setFontHeightInPoints((short)fontSize);// fontStyle.setColor(HSSFColor.BLACK.index);//颜色-白色 fontStyle.setBold(true); // fontStyle.setItalic(true);//斜体 // fontStyle.setUnderline(HSSFFont.U_SINGLE);//下划线 return fontStyle; } }
3.controller
@PostMapping(value = "/userPort") @ApiOperation(value = "导出用户",notes = "导出用户") public void userPort(@RequestParam(value = "portType", required = false)Integer portType, HttpServletResponse response) { String fileName="用户模板"; List<User> users = new ArrayList<>(); if (portType == 0){ fileName = LocalDate.now()+"用户列表"; users = authService.getUserList(); } OutputStream os = null; try { HSSFWorkbook workbook = exportExcelUtils.expotr(users); os = response.getOutputStream(); response.setContentType("application/vnd.ms-excel;charset=utf-8"); response.setHeader("Content-disposition", "attachment;filename=" + new String(fileName.getBytes(), "ISO8859-1") + ".xls"); workbook.write(os); os.flush(); }catch (Exception e) { e.printStackTrace(); }finally { if(os!=null){ try { os.close(); } catch (IOException e) { e.printStackTrace(); } } } }
vue代码：
1、按钮和点击触发 用的element ui（大多数的导出都是a标签或者是用from，个人感觉不太好就问了度娘）--具体来源找不到了，搜的太多原链接被清了
<el-button size="mini" class="el_user_btn user_portOut" @click="userExport">人员导出 <i class="iconfont icon-daochu icon_font"></i></el-button>
2、触发函数 portType是一个对比值，传到后端判断是模板还是全数据（也就是个post请求）axios就不说怎么用了
userExportSub(portType){ let { userPort } = url; axios({ url: userPort,//获取文件流的接口路径 method: 'post', data: qs.stringify({ "portType": portType }), responseType: 'blob' // 表明返回服务器返回的数据类型 很重要！！ }).then((res) => { //将文件流转成blob形式 const blob = new Blob([res.data],{type: 'application/vnd.ms-excel'}); let filename ='用户列表.xls'; //创建一个超链接，将文件流赋进去，然后实现这个超链接的单击事件 const eLink = document.createElement('a'); eLink.download = filename; eLink.style.display = 'none'; eLink.href = URL.createObjectURL(blob); document.body.appendChild(eLink); eLink.click(); URL.revokeObjectURL(eLink.href); // 释放URL 对象 document.body.removeChild(eLink); }).catch(error => { this.$message.error('导出失败'); }) },
来源：oschina
链接：https://my.oschina.net/u/3774949/blog/4307885