SpringBoot框架集成easypoi完成excel导出功能

2024-01-26 18:08
文章标签 java excel springboot 功能 spring 导出 完成 框架 集成 easypoi

本文主要是介绍SpringBoot框架集成easypoi完成excel导出功能，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1.首先新建一个SpringBoot微服务

2.只选择一个web就好

3.配置一下application.yml配置文件

server:port: 8080spring:application:name: easypoidata:thymeleaf:encoding: UTF-8servlet:content-type: text/html

4.引入前台jar包以及easypoi核心jar包

        <!-- 前台jar --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-base</artifactId><version>3.0.3</version></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-web</artifactId><version>3.0.3</version></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-annotation</artifactId><version>3.0.3</version></dependency>

5.接着我们创建model层实体类

package com.lsc.model;import cn.afterturn.easypoi.excel.annotation.Excel;import java.util.Date;public class Person {@Excel(name = "姓名", orderNum = "0")private String name;@Excel(name = "性别", replace = {"男_1", "女_2"}, orderNum = "1")private String sex;@Excel(name = "生日", exportFormat = "yyyy-MM-dd", orderNum = "2")private Date birthday;public Person(String name, String sex, Date birthday) {this.name = name;this.sex = sex;this.birthday = birthday;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public Date getBirthday() {return birthday;}public void setBirthday(Date birthday) {this.birthday = birthday;}
}

6.创建easypoi导入导出工具类

package com.lsc.utils;import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.ExcelImportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.ImportParams;
import cn.afterturn.easypoi.excel.entity.TemplateExportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
import cn.afterturn.easypoi.excel.entity.params.ExcelExportEntity;
import com.lsc.model.Person;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.web.multipart.MultipartFile;import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;public class ExcelUtil {public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName, boolean isCreateHeader, HttpServletResponse response) throws Exception {ExportParams exportParams = new ExportParams(title, sheetName);exportParams.setCreateHeadRows(isCreateHeader);defaultExport(list, pojoClass, fileName, response, exportParams);}public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass,String fileName, HttpServletResponse response) throws Exception {defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName));}public static void exportExcel(List<?> list, ExportParams exportParams, Class<?> pojoClass,String fileName, HttpServletResponse response) throws Exception {defaultExport(list, pojoClass, fileName, response, exportParams);}public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response) throws Exception {defaultExport(list, fileName, response);}public static void exportExcel(Workbook workbook,String fileName,HttpServletResponse response) throws Exception {if (workbook != null) {downLoadExcel(fileName, response, workbook);}}private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response, ExportParams exportParams) throws Exception {Workbook workbook = ExcelExportUtil.exportExcel(exportParams, pojoClass, list);if (workbook != null) {downLoadExcel(fileName, response, workbook);}}private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) throws Exception{try {response.setCharacterEncoding("UTF-8");response.setHeader("content-Type", "application/vnd.ms-excel");response.setHeader("Content-Disposition","attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));workbook.write(response.getOutputStream());} catch (IOException e) {throw new Exception(e.getMessage());}}private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response) throws Exception {Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);if (workbook != null){downLoadExcel(fileName, response, workbook);}}public static <T> List<T> importExcel(String filePath, Integer titleRows, Integer headerRows, Class<T> pojoClass)throws Exception {if (StringUtils.isBlank(filePath)) {return null;}ImportParams params = new ImportParams();params.setTitleRows(titleRows);params.setHeadRows(headerRows);List<T> list = null;try {list = ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);} catch (NoSuchElementException e) {throw new Exception("模板不能为空");} catch (Exception e) {e.printStackTrace();throw new Exception(e.getMessage());}return list;}public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass) throws Exception {if (file == null) {return null;}ImportParams params = new ImportParams();params.setTitleRows(titleRows);params.setHeadRows(headerRows);List<T> list = null;try {list = ExcelImportUtil.importExcel(file.getInputStream(), pojoClass, params);} catch (NoSuchElementException e) {throw new Exception("excel文件不能为空");} catch (Exception e) {throw new Exception(e);}return list;}public static void handleExcel(HttpServletResponse response, String fileName, TemplateExportParams params, Map<String, Object> map) {Workbook workbook = ExcelExportUtil.exportExcel(params, map);if (workbook != null) {try {response.setCharacterEncoding("UTF-8");response.setHeader("content-Type", "application/vnd.ms-excel");response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));workbook.write(response.getOutputStream());} catch (UnsupportedEncodingException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}}public static ArrayList<ExcelExportEntity> getExcelColumnList(List<Person> detailList) {ArrayList<ExcelExportEntity> columnList = new ArrayList<>();if (detailList != null && detailList.size() > 0) {for (Person firstTempDetail : detailList) {//处理自定义表头ExcelExportEntity excelExportEntity = new ExcelExportEntity(firstTempDetail.getName(), firstTempDetail.getName());List<Person> items = (List<Person>) firstTempDetail.getBirthday();if (items != null && items.size() > 0) {List<ExcelExportEntity> excelExportList = new ArrayList<>();for (Person item : items) {excelExportList.add(new ExcelExportEntity(item.getName(), item.getName()));}excelExportEntity.setList(excelExportList);}columnList.add(excelExportEntity);}}return columnList;}
}

7.创建controller层测试方法

package com.lsc.controller;import com.lsc.model.Person;
import com.lsc.utils.ExcelUtil;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;@RequestMapping("test")
@RestController
public class TestController {@RequestMapping("export")public void export(HttpServletResponse response) throws Exception {//模拟从数据库获取需要导出的数据List<Person> personList = new ArrayList<>();Person person1 = new Person("路飞","1",new Date());Person person2 = new Person("娜美","2", new Date());Person person3 = new Person("索隆","1", new Date());Person person4 = new Person("小狸猫","1", new Date());personList.add(person1);personList.add(person2);personList.add(person3);personList.add(person4);//导出操作ExcelUtil.exportExcel(personList,"花名册","草帽一伙",Person.class,"海贼王.xls",response);}@RequestMapping("importExcel")public void importExcel() throws Exception {String filePath = "E:\\海贼王.xls";//解析excel，List<Person> personList = ExcelUtil.importExcel(filePath,1,1,Person.class);//也可以使用MultipartFile,使用 FileUtil.importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass)导入System.out.println("导入数据一共【"+personList.size()+"】行");//TODO 保存数据库}}

8.创建页面跳转路径PageController

package com.lsc.controller;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;@Controller
@RequestMapping("page")
public class PageController {@RequestMapping("toindex")public String toindex(){return "list";}
}

9.创建前台页面，一个导出的按钮。指定Controller层测试方法的导出方法跳转路径

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<button onclick="daochu()">导出</button>
</body>
<script>function daochu(){location.href="/test/export";}
</script>
</html>

10.目前的包结构如下：

11.接着我们访问前台路径http://localhost:8080/page/toindex

12.点击导出按钮，就会导出出来了。

13.这是excel中的内容：

完成。只是一个小demo。经供参考。谢谢

这篇关于SpringBoot框架集成easypoi完成excel导出功能的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/647627。

相关文章

shell脚本批量导出redis key-value方式

shell脚本批量导出redis key-value方式

《shell脚本批量导出rediskey-value方式》为避免keys全量扫描导致Redis卡顿,可先通过dump.rdb备份文件在本地恢复,再使用scan命令渐进导出key-value,通过CN... 目录1 背景2 详细步骤2.1 本地docker启动Redis2.2 shell批量导出脚本3 附录总
阅读更多...
分布式锁在Spring Boot应用中的实现过程

分布式锁在Spring Boot应用中的实现过程

《分布式锁在SpringBoot应用中的实现过程》文章介绍在SpringBoot中通过自定义Lock注解、LockAspect切面和RedisLockUtils工具类实现分布式锁,确保多实例并发操作... 目录Lock注解LockASPect切面RedisLockUtils工具类总结在现代微服务架构中，分布
阅读更多...
Java使用Thumbnailator库实现图片处理与压缩功能

Java使用Thumbnailator库实现图片处理与压缩功能

《Java使用Thumbnailator库实现图片处理与压缩功能》Thumbnailator是高性能Java图像处理库,支持缩放、旋转、水印添加、裁剪及格式转换,提供易用API和性能优化,适合Web应... 目录1. 图片处理库Thumbnailator介绍2. 基本和指定大小图片缩放功能2.1 图片缩放的
阅读更多...
Spring Boot集成/输出/日志级别控制/持久化开发实践

Spring Boot集成/输出/日志级别控制/持久化开发实践

《SpringBoot集成/输出/日志级别控制/持久化开发实践》SpringBoot默认集成Logback,支持灵活日志级别配置（INFO/DEBUG等）,输出包含时间戳、级别、类名等信息,并可通过... 目录一、日志概述1.1、Spring Boot日志简介1.2、日志框架与默认配置1.3、日志的核心作用
阅读更多...
破茧 JDBC:MyBatis 在 Spring Boot 中的轻量实践指南

破茧 JDBC:MyBatis 在 Spring Boot 中的轻量实践指南

《破茧JDBC:MyBatis在SpringBoot中的轻量实践指南》MyBatis是持久层框架,简化JDBC开发,通过接口+XML/注解实现数据访问,动态代理生成实现类,支持增删改查及参数... 目录一、什么是 MyBATis二、 MyBatis 入门2.1、创建项目2.2、配置数据库连接字符串2.3、入
阅读更多...
Springboot项目启动失败提示找不到dao类的解决

Springboot项目启动失败提示找不到dao类的解决

《Springboot项目启动失败提示找不到dao类的解决》SpringBoot启动失败,因ProductServiceImpl未正确注入ProductDao,原因：Dao未注册为Bean,解决：在启... 目录错误描述原因解决方法总结***************************APPLICA编
阅读更多...
深度解析Spring Security 中的 SecurityFilterChain核心功能

深度解析Spring Security 中的 SecurityFilterChain核心功能

《深度解析SpringSecurity中的SecurityFilterChain核心功能》SecurityFilterChain通过组件化配置、类型安全路径匹配、多链协同三大特性,重构了Spri... 目录Spring Security 中的SecurityFilterChain深度解析一、Security
阅读更多...
SpringBoot多环境配置数据读取方式

SpringBoot多环境配置数据读取方式

《SpringBoot多环境配置数据读取方式》SpringBoot通过环境隔离机制,支持properties/yaml/yml多格式配置,结合@Value、Environment和@Configura... 目录一、多环境配置的核心思路二、3种配置文件格式详解2.1 properties格式（传统格式）1.
阅读更多...
Apache Ignite 与 Spring Boot 集成详细指南

Apache Ignite 与 Spring Boot 集成详细指南

《ApacheIgnite与SpringBoot集成详细指南》ApacheIgnite官方指南详解如何通过SpringBootStarter扩展实现自动配置,支持厚/轻客户端模式,简化Ign... 目录 一、背景：为什么需要这个集成？ 二、两种集成方式（对应两种客户端模型） 三、方式一：自动配置 Thick
阅读更多...
Spring WebClient从入门到精通

Spring WebClient从入门到精通

《SpringWebClient从入门到精通》本文详解SpringWebClient非阻塞响应式特性及优势,涵盖核心API、实战应用与性能优化,对比RestTemplate,为微服务通信提供高效解决... 目录一、WebClient 概述1.1 为什么选择 WebClient？1.2 WebClient 与
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2