SpringBoot中实现一个通用Excel导出功能

这个导出功能的特色

• 非常通用，能够满足大部分项目中99%的导出功能，代码复用性很强
• 导出的列可以由前端自定义（比如哪些列需要导出、列的顺序、名称等都是可以由前端自定义）

看效果

先带大家看一下效果。

代码解析

1、依赖

<properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version><spring-boot.version>2.7.13</spring-boot.version><commons.io.version>2.11.0</commons.io.version><mybatis-plus.version>3.5.3</mybatis-plus.version><hutool.version>5.8.2</hutool.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- io常用工具类 --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>${commons.io.version}</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>${hutool.version}</version></dependency><!-- Apache Lang3 --><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency><!-- Apache collections4 --><dependency><groupId>org.apache.commons</groupId><artifactId>commons-collections4</artifactId><version>4.4</version></dependency><!-- https://mvnrepository.com/artifact/com.alibaba/easyexcel --><dependency><groupId>com.alibaba</groupId><artifactId>easyexcel</artifactId><version>3.3.4</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><image><builder>paketobuildpacks/builder-jammy-base:latest</builder></image><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins></build>

2、Excel 入参（ExcelExportRequest）

public class ExcelExportRequest {/*** excel名称*/private String excelName;/*** sheet的名称*/private String sheetName;/*** 导出字段有序列表*/private List<ExcelExportField> fieldList;public String getSheetName() {return sheetName;}public void setSheetName(String sheetName) {this.sheetName = sheetName;}public String getExcelName() {return excelName;}public void setExcelName(String excelName) {this.excelName = excelName;}public List<ExcelExportField> getFieldList() {return fieldList;}public void setFieldList(List<ExcelExportField> fieldList) {this.fieldList = fieldList;}
}

3、Excel 出参（ExcelExportResponse）

public class ExcelExportResponse {//导出的excel文件名称private String excelName;// sheet列表数据private List<ExcelSheet> sheetList;public String getExcelName() {return excelName;}public void setExcelName(String excelName) {this.excelName = excelName;}public List<ExcelSheet> getSheetList() {return sheetList;}public void setSheetList(List