SpringBoot实现Excel导入导出

在我们平时工作中经常会遇到要操作Excel的功能，比如导出个用户信息或者订单信息的Excel报表。你肯定听说过

POI这个东西，可以实现。但是POI实现的API确实很麻烦，它需要写那种逐行解析的代码（类似Xml解析）。今天

给大家推荐一款非常好用的Excel导入导出工具EasyPoi，希望对大家有所帮助！

1、EasyPoi简介

用惯了SpringBoot的朋友估计会想到，有没有什么办法可以直接定义好需要导出的数据对象，然后添加几个注

解，直接自动实现Excel导入导出功能？

EasyPoi正是这么一款工具，如果你不太熟悉POI，想简单地实现Excel操作，用它就对了！

EasyPoi的目标不是替代POI，而是让一个不懂导入导出的人也能快速使用POI完成Excel的各种操作，而不是看很

多API才可以完成这样的工作。

项目官网：https://gitee.com/lemur/easypoi

2、集成

在SpringBoot中集成EasyPoi非常简单，只需添加easypoi-spring-boot-starter依赖即可，真正的开箱即

用！

2.1 pom依赖

<?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>2.5.6</version>
		<relativePath/>
	</parent>
	<groupId>com.easypoi</groupId>
	<artifactId>spring-boot-easypoi</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>spring-boot-easypoi</name>
	<description>pringBoot实现Excel导入导出</description>

	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>

		<dependency>
			<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>cn.afterturn</groupId>
			<artifactId>easypoi-spring-boot-starter</artifactId>
			<version>4.4.0</version>
		</dependency>

		<!--springfox swagger官方Starter-->
		<dependency>
			<groupId>io.springfox</groupId>
			<artifactId>springfox-boot-starter</artifactId>
			<version>3.0.0</version>
		</dependency>

        <!--lombok依赖-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

		<!--SpringBoot通用依赖模块-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-aop</artifactId>
		</dependency>

	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

2.2 结果集封装

package com.easypoi.common.api;

/**
 * 封装API的错误码
 */
public interface IErrorCode {
    
    long getCode();

    String getMessage();
}

package com.easypoi.common.api;

/**
 * 枚举了一些常用API操作码
 */
public enum ResultCode implements IErrorCode {
    
    SUCCESS(200, "操作成功"),
    FAILED(500, "操作失败"),
    VALIDATE_FAILED(404, "参数检验失败"),
    UNAUTHORIZED(401, "暂未登录或token已经过期"),
    FORBIDDEN(403, "没有相关权限");
    private long code;
    private String message;

    private ResultCode(long code, String message) {
        this.code = code;
        this.message = message;
    }

    public long getCode() {
        return code;
    }

    public String getMessage() {
        return message;
    }
}

package com.easypoi.common.api;

/**
 * 通用返回对象
 */
public class CommonResult<T> {
    private long code;
    private String message;
    private T data;

    protected CommonResult() {
    }

    protected CommonResult(long code, String message, T data) {
        this.code = code;
        this.message = message;
        this.data = data;
    }

    /**
     * 成功返回结果
     *
     * @param data 获取的数据
     */
    public static <T> CommonResult<T> success(T data) {
        return new CommonResult<T>(ResultCode.SUCCESS.getCode(), ResultCode.SUCCESS.getMessage(), data);
    }

    /**
     * 成功返回结果
     *
     * @param data    获取的数据
     * @param message 提示信息
     */
    public static <T> CommonResult<T> success(T data, String message) {
        return new CommonResult<T>(ResultCode.SUCCESS.getCode(), message, data);
    }

    /**
     * 失败返回结果
     *
     * @param errorCode 错误码
     */
    public static <T> CommonResult<T> failed(IErrorCode errorCode) {
        return new CommonResult<T>(errorCode.getCode(), errorCode.getMessage(), null);
    }

    /**
     * 失败返回结果
     *
     * @param message 提示信息
     */
    public static <T> CommonResult<T> failed(String message) {
        return new CommonResult<T>(ResultCode.FAILED.getCode(), message, null);
    }

    /**
     * 失败返回结果
     */
    public static <T> CommonResult<T> failed() {
        return failed(ResultCode.FAILED);
    }

    /**
     * 参数验证失败返回结果
     */
    public static <T> CommonResult<T> validateFailed() {
        return failed(ResultCode.VALIDATE_FAILED);
    }

    /**
     * 参数验证失败返回结果
     *
     * @param message 提示信息
     */
    public static <T> CommonResult<T> validateFailed(String message) {
        return new CommonResult<T>(ResultCode.VALIDATE_FAILED.getCode(), message, null);
    }

    /**
     * 未登录返回结果
     */
    public static <T> CommonResult<T> unauthorized(T data) {
        return new CommonResult<T>(ResultCode.UNAUTHORIZED.getCode(), ResultCode.UNAUTHORIZED.getMessage(), data);
    }

    /**
     * 未授权返回结果
     */
    public static <T> CommonResult<T> forbidden(T data) {
        return new CommonResult<T>(ResultCode.FORBIDDEN.getCode(), ResultCode.FORBIDDEN.getMessage(), data);
    }

    public long getCode() {
        return code;
    }

    public void setCode(long code) {
        this.code = code;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }
}

2.3 Swagger配置

package com.easypoi.config;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

/**
 * Swagger2API文档的配置
 */
@Configuration
@EnableSwagger2
public class Swagger2Config {
    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                //为当前包下controller生成API文档
                .apis(RequestHandlerSelectors.basePackage("com.easypoi.controller"))
                //为有@Api注解的Controller生成API文档
                .apis(RequestHandlerSelectors.withClassAnnotation(Api.class))
                //为有@ApiOperation注解的方法生成API文档
                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("SwaggerUI演示")
                .description("mall-tiny")
                .contact(new Contact("macro", null, null))
                .version("1.0")
                .build();
    }
}

2.4 启动类

package com.easypoi;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringBootEasypoiApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootEasypoiApplication.class, args);
    }

}

2.5 配置文件

server:
  port: 8088

springfox:
  documentation:
    enabled: true

2.6 实体类

package com.easypoi.domain;

import cn.afterturn.easypoi.excel.annotation.Excel;
import lombok.Data;
import lombok.EqualsAndHashCode;

import java.util.Date;

/**
 * 购物会员
 */
@Data
@EqualsAndHashCode(callSuper = false)
public class Member {
    @Excel(name = "ID", width = 10)
    private Long id;

    @Excel(name = "用户名", width = 20, needMerge = true)
    private String username;

    private String password;

    @Excel(name = "昵称", width = 20, needMerge = true)
    private String nickname;

    @Excel(name = "出生日期", width = 20, format = "yyyy-MM-dd")
    private Date birthday;

    @Excel(name = "手机号", width = 20, needMerge = true, desensitizationRule = "3_4")
    private String phone;

    private String icon;

    @Excel(name = "性别", width = 10, replace = {"男_0", "女_1"})
    private Integer gender;
}

package com.easypoi.domain;

import cn.afterturn.easypoi.excel.annotation.Excel;
import cn.afterturn.easypoi.excel.annotation.ExcelCollection;
import cn.afterturn.easypoi.excel.annotation.ExcelEntity;
import lombok.Data;
import lombok.EqualsAndHashCode;

import java.util.Date;
import java.util.List;

/**
 * 订单
 */
@Data
@EqualsAndHashCode(callSuper = false)
public class Order {

    @Excel(name = "ID", width = 10, needMerge = true)
    private Long id;

    @Excel(name = "订单号", width = 20, needMerge = true)
    private String orderSn;

    @Excel(name = "创建时间", width = 20, format = "yyyy-MM-dd HH:mm:ss", needMerge = true)
    private Date createTime;

    @Excel(name = "收货地址", width = 20, needMerge = true)
    private String receiverAddress;

    @ExcelEntity(name = "会员信息")
    private Member member;

    @ExcelCollection(name = "商品列表")
    private List<Product> productList;
}

package com.easypoi.domain;

import cn.afterturn.easypoi.excel.annotation.Excel;
import lombok.Data;
import lombok.EqualsAndHashCode;

import java.math.BigDecimal;

/**
 * 商品
 */
@Data
@EqualsAndHashCode(callSuper = false)
public class Product {
    @Excel(name = "ID", width = 10)
    private Long id;

    @Excel(name = "商品SN", width = 20)
    private String productSn;

    @Excel(name = "商品名称", width = 20)
    private String name;

    @Excel(name = "商品副标题", width = 30)
    private String subTitle;

    @Excel(name = "品牌名称", width = 20)
    private String brandName;

    @Excel(name = "商品价格", width = 10)
    private BigDecimal price;

    @Excel(name = "购买数量", width = 10, suffix = "件")
    private Integer count;
}

2.7 工具类

package com.easypoi.util;

import cn.hutool.core.io.IoUtil;
import cn.hutool.core.io.resource.ClassPathResource;
import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONUtil;

import java.nio.charset.Charset;
import java.util.List;

/**
 * 从本地获取JSON数据的工具类
 */
public class LocalJsonUtil {

    /**
     * 从指定路径获取JSON并转换为List
     *
     * @param path        json文件路径
     * @param elementType List元素类型
     */
    public static <T> List<T> getListFromJson(String path, Class<T> elementType) {
        ClassPathResource resource = new ClassPathResource(path);
        String jsonStr = IoUtil.read(resource.getStream(), Charset.forName("UTF-8"));
        JSONArray jsonArray = new JSONArray(jsonStr);
        return JSONUtil.toList(jsonArray, elementType);
    }
}

LocalJsonUtil工具类，可以直接从resources目录下获取JSON数据并转化为对象。

2.8 字段处理器

package com.easypoi.handler;

import cn.afterturn.easypoi.handler.impl.ExcelDataHandlerDefaultImpl;
import cn.hutool.core.util.StrUtil;
import com.easypoi.domain.Member;

/**
 * 自定义字段处理
 */
public class MemberExcelDataHandler extends ExcelDataHandlerDefaultImpl<Member> {

    @Override
    public Object exportHandler(Member obj, String name, Object value) {
        if("昵称".equals(name)){
            String emptyValue = "暂未设置";
            if(value==null){
                return super.exportHandler(obj,name,emptyValue);
            }
            if(value instanceof String&&StrUtil.isBlank((String) value)){
              return super.exportHandler(obj,name,emptyValue);
            }
        }
        return super.exportHandler(obj, name, value);
    }

    @Override
    public Object importHandler(Member obj, String name, Object value) {
        return super.importHandler(obj, name, value);
    }
}

2.9 处理器

package com.easypoi.controller;

import cn.afterturn.easypoi.entity.vo.NormalExcelConstants;
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.enmus.ExcelType;
import cn.afterturn.easypoi.view.PoiBaseView;
import com.easypoi.common.api.CommonResult;
import com.easypoi.domain.Member;
import com.easypoi.domain.Order;
import com.easypoi.domain.Product;
import com.easypoi.handler.MemberExcelDataHandler;
import com.easypoi.util.LocalJsonUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;

/**
 * EasyPoi导入导出测试Controller
 */
@Controller
@Api(tags = "EasyPoiController", description = "EasyPoi导入导出测试")
@RequestMapping("/easyPoi")
public class EasyPoiController {

    @ApiOperation(value = "导出会员列表Excel")
    @RequestMapping(value = "/exportMemberList", method = RequestMethod.GET)
    public void exportMemberList(ModelMap map,
                                 HttpServletRequest request,
                                 HttpServletResponse response) {
        List<Member> memberList = LocalJsonUtil.getListFromJson("json/members.json", Member.class);
        ExportParams params = new ExportParams("会员列表", "会员列表", ExcelType.XSSF);
        //对导出结果进行自定义处理
        MemberExcelDataHandler handler = new MemberExcelDataHandler();
        handler.setNeedHandlerFields(new String[]{"昵称"});
        params.setDataHandler(handler);
        map.put(NormalExcelConstants.DATA_LIST, memberList);
        map.put(NormalExcelConstants.CLASS, Member.class);
        map.put(NormalExcelConstants.PARAMS, params);
        map.put(NormalExcelConstants.FILE_NAME, "memberList");
        PoiBaseView.render(map, request, response, NormalExcelConstants.EASYPOI_EXCEL_VIEW);
    }

    @ApiOperation("从Excel导入会员列表")
    @RequestMapping(value = "/importMemberList", method = RequestMethod.POST)
    @ResponseBody
    public CommonResult importMemberList(@RequestPart("file") MultipartFile file) {
        ImportParams params = new ImportParams();
        params.setTitleRows(1);
        params.setHeadRows(1);
        try {
            List<Member> list = ExcelImportUtil.importExcel(
                    file.getInputStream(),
                    Member.class, params);
            return CommonResult.success(list);
        } catch (Exception e) {
            e.printStackTrace();
            return CommonResult.failed("导入失败！");
        }
    }

    @ApiOperation(value = "导出订单列表Excel")
    @RequestMapping(value = "/exportOrderList", method = RequestMethod.GET)
    public void exportOrderList(ModelMap map,
                                HttpServletRequest request,
                                HttpServletResponse response) {
        List<Order> orderList = getOrderList();
        ExportParams params = new ExportParams("订单列表", "订单列表", ExcelType.XSSF);
        //导出时排除一些字段
        params.setExclusions(new String[]{"ID", "出生日期", "性别"});
        map.put(NormalExcelConstants.DATA_LIST, orderList);
        map.put(NormalExcelConstants.CLASS, Order.class);
        map.put(NormalExcelConstants.PARAMS, params);
        map.put(NormalExcelConstants.FILE_NAME, "orderList");
        PoiBaseView.render(map, request, response, NormalExcelConstants.EASYPOI_EXCEL_VIEW);
    }

    private List<Order> getOrderList() {
        List<Order> orderList = LocalJsonUtil.getListFromJson("json/orders.json", Order.class);
        List<Product> productList = LocalJsonUtil.getListFromJson("json/products.json", Product.class);
        List<Member> memberList = LocalJsonUtil.getListFromJson("json/members.json", Member.class);
        for (int i = 0; i < orderList.size(); i++) {
            Order order = orderList.get(i);
            order.setMember(memberList.get(i));
            order.setProductList(productList);
        }
        return orderList;
    }
}

2.10 测试

接下来介绍下EasyPoi的使用，以会员信息和订单信息的导入导出为例，分别实现下简单的单表导出和具有关联信

息的复杂导出。

2.10.1 简单导出

我们以会员信息列表导出为例，使用EasyPoi来实现下导出功能，看看是不是够简单！

• 首先创建一个会员对象Member，封装会员信息；

• 在此我们就可以看到EasyPoi的核心注解@Excel，通过在对象上添加@Excel注解，可以将对象信息直接导出

  到Excel中去，下面对注解中的属性做个介绍；

• • name：Excel中的列名；

  • width：指定列的宽度；

  • needMerge：是否需要纵向合并单元格；

  • format：当属性为时间类型时，设置时间的导出导出格式；

  • desensitizationRule：数据脱敏处理，3_4表示只显示字符串的前3位和后4位，其他为*号；

  • replace：对属性进行替换；

  • suffix：对数据添加后缀。

• 接下来我们在Controller中添加一个接口，用于导出会员列表到Excel，导出的member.json的内容：

[
  {
    "id": 1,
    "username": "admin",
    "password": null,
    "nickname": "Admin",
    "birthday": "1994-12-31",
    "phone": "18790000000",
    "icon": null,
    "gender": 0
  },
  {
    "id": 2,
    "username": "macro",
    "password": null,
    "nickname": "Macro",
    "birthday": "1995-01-31",
    "phone": "18791000000",
    "icon": null,
    "gender": 0
  },
  {
    "id": 3,
    "username": "andy",
    "password": null,
    "nickname": "Andy",
    "birthday": "1995-02-28",
    "phone": "18792000000",
    "icon": null,
    "gender": 1
  },
  {
    "id": 4,
    "username": "ruby",
    "password": null,
    "nickname": "Ruby",
    "birthday": "1995-03-31",
    "phone": "18793000000",
    "icon": null,
    "gender": 1
  },
  {
    "id": 5,
    "username": "tom",
    "password": null,
    "nickname": "",
    "birthday": "1995-03-31",
    "phone": "18793000000",
    "icon": null,
    "gender": 1
  }
]

运行项目，直接通过Swagger访问接口，注意在Swagger中访问接口无法直接下载，需要点击返回结果中的下载按

钮才行，访问地址：http://localhost:8088/swagger-ui/

下载完成后，查看下文件，一个标准的Excel文件已经被导出了。

memberList.xlsx文件内容：

2.10.2 简单导入

导入功能实现起来也非常简单，下面以会员信息列表的导入为例。

• 在Controller中添加会员信息导入的接口，这里需要注意的是使用@RequestPart注解修饰文件上传参数，否

  则在Swagger中就没法显示上传按钮了；

• 然后在Swagger中测试接口，选择之前导出的Excel文件即可，导入成功后会返回解析到的数据。

得到的结果：

{
  "code": 200,
  "message": "操作成功",
  "data": [
    {
      "id": 1,
      "username": "admin",
      "password": null,
      "nickname": "Admin",
      "birthday": "1994-12-30T16:00:00.000+00:00",
      "phone": "187****0000",
      "icon": null,
      "gender": 0
    },
    {
      "id": 2,
      "username": "macro",
      "password": null,
      "nickname": "Macro",
      "birthday": "1995-01-30T16:00:00.000+00:00",
      "phone": "187****0000",
      "icon": null,
      "gender": 0
    },
    {
      "id": 3,
      "username": "andy",
      "password": null,
      "nickname": "Andy",
      "birthday": "1995-02-27T16:00:00.000+00:00",
      "phone": "187****0000",
      "icon": null,
      "gender": 1
    },
    {
      "id": 4,
      "username": "ruby",
      "password": null,
      "nickname": "Ruby",
      "birthday": "1995-03-30T16:00:00.000+00:00",
      "phone": "187****0000",
      "icon": null,
      "gender": 1
    },
    {
      "id": 5,
      "username": "tom",
      "password": null,
      "nickname": "暂未设置",
      "birthday": "1995-03-30T16:00:00.000+00:00",
      "phone": "187****0000",
      "icon": null,
      "gender": 1
    }
  ]
}

2.10.3 复杂导出

当然EasyPoi也可以实现更加复杂的Excel操作，比如导出一个嵌套了会员信息和商品信息的订单列表，下面我们来

实现下！

• 首先添加商品对象Product，用于封装商品信息；

• 然后添加订单对象Order，订单和会员是一对一关系，使用@ExcelEntity注解表示，订单和商品是一对多关

  系，使用@ExcelCollection注解表示，Order就是我们需要导出的嵌套订单数据；

• 接下来在Controller中添加导出订单列表的接口，由于有些会员信息我们不需要导出，可以调用

  ExportParams中的setExclusions方法排除掉；

• 在Swagger中访问接口测试，导出订单列表对应Excel；

products.json的内容：

[
  {
    "id": 1,
    "productSn": "7437788",
    "name": "小米8",
    "subTitle": "全面屏游戏智能手机 6GB+64GB 黑色 全网通4G 双卡双待",
    "brandName": "小米",
    "price": 2699,
    "count": 1
  },
  {
    "id": 2,
    "productSn": "7437789",
    "name": "红米5A",
    "subTitle": "全网通版 3GB+32GB 香槟金 移动联通电信4G手机 双卡双待",
    "brandName": "小米",
    "price": 649,
    "count": 1
  },
  {
    "id": 3,
    "productSn": "7437799",
    "name": "Apple iPhone 8 Plus",
    "subTitle": "64GB 红色特别版 移动联通电信4G手机",
    "brandName": "苹果",
    "price": 5499,
    "count": 1
  }
]

orders.json的内容：

[
  {
    "id": 1,
    "orderSn": "201809150101000001",
    "createTime": "2021-10-10 17:02:28",
    "receiverAddress": "广东省深圳市"
  },
  {
    "id": 1,
    "orderSn": "201809150101000002",
    "createTime": "2021-10-11 17:02:28",
    "receiverAddress": "江苏省南京市"
  },
  {
    "id": 1,
    "orderSn": "201809150101000003",
    "createTime": "2021-10-12 17:02:28",
    "receiverAddress": "江苏省苏州市"
  }
]

• 下载完成后，查看下文件，EasyPoi导出复杂的Excel也是很简单的！

2.10.4 自定义处理

如果你想对导出字段进行一些自定义处理，EasyPoi也是支持的，比如在会员信息中，如果用户没有设置昵称，我

们添加下暂未设置信息。

• 我们需要添加一个处理器继承默认的ExcelDataHandlerDefaultImpl类，然后在exportHandler方法中实

  现自定义处理逻辑；

• 然后修改Controller中的接口，调用MemberExcelDataHandler处理器的setNeedHandlerFields设置需要

  自定义处理的字段，并调用ExportParams的setDataHandler设置自定义处理器；

• 再次调用导出接口，我们可以发现昵称已经添加默认设置了。

上面的代码已经是自定义处理过的。

//对导出结果进行自定义处理
MemberExcelDataHandler handler = new MemberExcelDataHandler();
handler.setNeedHandlerFields(new String[]{"昵称"});
params.setDataHandler(handler);

3、总结

体验了一波EasyPoi，它使用注解来操作Excel的方式确实非常好用。如果你想生成更为复杂的Excel的话，可以考

虑下它的模板功能。