SpringBoot基于easyexcel导出和写入Excel
easyexcel是阿里巴巴旗下开源项目，主要用于Excel文件的导入和导出处理，今天我们利用SpringBoot和easyexcel实战演示如何导出和写入Excel文件。
一、加入我们需要的easyexcel依赖
我们项目还用了其他依赖，我把我的pom文件全部贴在下面，读者自行根据需要取舍
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.xu</groupId>
<artifactId>easyexcel</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>easyexcel</name>
<description>Demo project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<swagger-ui.version>2.9.2</swagger-ui.version>
<swagger2.version>2.9.2</swagger2.version>
</properties>
<dependencies>
<!-- spring-boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- log related -->
<dependency> <!-- exclude掉spring-boot的默认log配置 -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<!-- 表示开发的时候引入，发布的时候不会加载此包 -->
<scope>test</scope>
</dependency>
<!-- mybatis-plus begin -->
<!--mybatis-plus自动的维护了mybatis以及mybatis-spring的依赖，在springboot中这三者不能同时的出现，避免版本的冲突，表示：跳进过这个坑-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.1.0</version>
</dependency>
<!--swagger2-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${swagger-ui.version}</version>
</dependency>
<!--排除并新增1.5swagger-annotations和swagger-models
为了解决swagger2中example注解导致的input空字符串异常错误-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger2.version}</version>
<exclusions>
<exclusion>
<groupId>io.swagger</groupId>
<artifactId>swagger-annotations</artifactId>
</exclusion>
<exclusion>
<groupId>io.swagger</groupId>
<artifactId>swagger-models</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-annotations</artifactId>
<version>1.5.21</version>
</dependency>