导出excel，并生成多个sheet(使用Hutool工具类)

1.引入POI依赖 ：

    org.apache.poi
	poi-ooxml
	3.17



	org.apache.poi
	poi-ooxml-schemas
	3.17



	cn.hutool
	hutool-all
	4.5.10

2.controller层：

package com.techlutong.jzm.controller.admin;
/**
 * Title: AdminJzmUserController
 * Description: 会员管理相关接口
 *
 * @author jintian
 * @created 2019/3/27 14:47
 */

import com.alibaba.fastjson.support.spring.annotation.FastJsonFilter;
import com.techlutong.jzm.config.JZMJsonView;
import com.techlutong.jzm.constant.CommonConstant;
import com.techlutong.jzm.service.JzmUserService;
import com.techlutong.jzm.vo.ResponseMessage;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;

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


@Api(value = "AdminJzmUserController", description = "jzm:AdminJzmUserController")
@RestController
@RequestMapping(value = CommonConstant.ApiPath.V1, produces = {MediaType.APPLICATION_JSON_UTF8_VALUE})
public class AdminJzmUserController {

    @Autowired
    JzmUserService jzmUserService;

   /**
     * 导出商铺信息
     *            
     *
     * @param shopName
     * @param shopCode
     * @param jzmShopAuditStatus
     * @param response
     * @return
     * @throws Exception
     */
    @ApiOperation(value="导出商铺信息", notes = "")
    @GetMapping(value = CommonConstant.ApiAuth.ANON + "/exportJzmUserInfo")
    public ResponseMessage exportJzmUserInfo(String shopName,String shopCode,String jzmShopAuditStatus, HttpServletResponse response)throws Exception{
        return jzmUserService.exportJzmUserInfo(shopName,shopCode,jzmShopAuditStatus,response);
    }


   
    
  
}

3.service层：

package com.techlutong.jzm.service;

import com.techlutong.jzm.model.JzmUser;
import com.techlutong.jzm.vo.ResponseMessage;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/**
 * Title: JzmUserService
 * Description: TODO
 *
 * @author 
 * @created 
 */

public interface JzmUserService extends CommonService {




   /**
     * 导出商铺信息
     *                 
     *
     * @param shopName
     * @param shopCode
     * @param jzmShopAuditStatus
     * @param response
     * @return
     * @throws Exception
     */
    ResponseMessage exportJzmUserInfo(String shopName,String shopCode,String jzmShopAuditStatus, HttpServletResponse response)throws Exception;




}

4.service实现层：

package com.techlutong.jzm.service.impl;

import cn.hutool.core.util.StrUtil;
import cn.hutool.poi.excel.ExcelWriter;
import com.github.wenhao.jpa.Specifications;
import com.techlutong.jzm.enums.*;
import com.techlutong.jzm.model.*;
import com.techlutong.jzm.repository.*;
import com.techlutong.jzm.service.*;
import com.techlutong.jzm.util.*;
import com.techlutong.jzm.vo.*;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.text.SimpleDateFormat;
import java.util.*;


/**
 * Title: JzmUserService
 * Description: TODO
 *
 * @author 
 * @created
 */
@Slf4j
@Service
public class JzmUserServiceImpl implements JzmUserService {
    @Autowired
    private JzmUserRepository jzmUserRepository;


   /**
     * 导出商铺信息
     *                  
     * @param shopName
     * @param shopCode
     * @param jzmShopAuditStatus
     * @param response
     * @return
     * @throws Exception
     */
    @Override
    public ResponseMessage exportJzmUserInfo(String shopName,String shopCode,String jzmShopAuditStatus,HttpServletResponse response) throws Exception {

        //个体商铺信息
        List sellerListP = this.findByPersonal(shopName,shopCode,jzmShopAuditStatus);
        //企业商铺信息
        List sellerListE = this.findByEnterprise(shopName,shopCode,jzmShopAuditStatus);

        List> resultListP = new ArrayList<>();
        List> resultListE = new ArrayList<>();
        if(sellerListP.size()>0){
            for (JzmUser temp:sellerListP) {
                Map map = new HashMap<>();
                //商铺名称
                map.put("shopName",temp.getShopName());
                //商铺类型
                if(null != temp.getJzmShopType()){
                    if(temp.getJzmShopType().equals(JzmShopType.PERSONAL)){
                        map.put("jzmShopType","个人");
                    }
                    if(temp.getJzmShopType().equals(JzmShopType.ENTERPRISE)){
                        map.put("jzmShopType","企业");
                    }
                }else{
                    map.put("jzmShopType","");
                }
                //是否为代理商
                if(null != temp.getIsProxy()){
                    if(temp.getIsProxy()){
                        map.put("isProxy","是");
                    }
                    if(!temp.getIsProxy()){
                        map.put("isProxy","否");
                    }
                }else{
                    map.put("isProxy","");
                }
                //创建时间
                map.put("createDate",temp.getCreateDate());
                //审核状态
                if(null != temp.getJzmShopAuditStatus()){
                    if(temp.getJzmShopAuditStatus().equals(JzmShopAuditStatus.AUDIT_PASS)){
                        map.put("jzmShopAuditStatus","审核通过");
                    }
                    if(temp.getJzmShopAuditStatus().equals(JzmShopAuditStatus.UNAUDITED)){
                        map.put("jzmShopAuditStatus","未审核");
                    }
                    if(temp.getJzmShopAuditStatus().equals(JzmShopAuditStatus.AUDIT_NOPASS)){
                        map.put("jzmShopAuditStatus","审核不通过");
                    }
                }else{
                    map.put("jzmShopAuditStatus","");
                }
                //姓名
                map.put("name",temp.getBuyerUser().getName());
                //身份证号
                map.put("identityCardNo",temp.getBuyerUser().getIdentityCardNo());
                //邮箱
                map.put("email",temp.getEmail());
                //联系电话
                map.put("mobile",temp.getMobile());
                //店铺介绍
                map.put("shopDescribe",temp.getShopDescribe() != null?temp.getShopDescribe():"");
                //经营范围
                map.put("businessScope",temp.getBusinessScope());
                //店铺地址
                map.put("province",temp.getRegisteredAddress());

                resultListP.add(map);
            }
        }
        if(sellerListE.size()>0){
            for (JzmUser temp:sellerListE) {
                Map map = new HashMap<>();
                //商铺名称
                map.put("shopName",temp.getShopName());
                //商铺类型
                if(null != temp.getJzmShopType()){
                    if(temp.getJzmShopType().equals(JzmShopType.PERSONAL)){
                        map.put("jzmShopType","个人");
                    }
                    if(temp.getJzmShopType().equals(JzmShopType.ENTERPRISE)){
                        map.put("jzmShopType","企业");
                    }
                }else{
                    map.put("jzmShopType","");
                }
                //是否为代理商
                if(null != temp.getIsProxy()){
                    if(temp.getIsProxy()){
                        map.put("isProxy","是");
                    }
                    if(!temp.getIsProxy()){
                        map.put("isProxy","否");
                    }
                }else{
                    map.put("isProxy","");
                }
                //创建时间
                map.put("createDate",temp.getCreateDate());
                //审核状态
                if(null != temp.getJzmShopAuditStatus()){
                    if(temp.getJzmShopAuditStatus().equals(JzmShopAuditStatus.AUDIT_PASS)){
                        map.put("jzmShopAuditStatus","审核通过");
                    }
                    if(temp.getJzmShopAuditStatus().equals(JzmShopAuditStatus.UNAUDITED)){
                        map.put("jzmShopAuditStatus","未审核");
                    }
                    if(temp.getJzmShopAuditStatus().equals(JzmShopAuditStatus.AUDIT_NOPASS)){
                        map.put("jzmShopAuditStatus","审核不通过");
                    }
                }else{
                    map.put("jzmShopAuditStatus","");
                }
                //注册资本
                map.put("registeredCapital",temp.getSellerUser().getRegisteredCapital());
                //企业类型
                map.put("compnayType",temp.getSellerUser().getCompnayType());
                //企业电话
                map.put("companyPhone",temp.getSellerUser().getCompanyPhone());
                //法人身份证号
                map.put("corporateCardNo",temp.getSellerUser().getCorporateCardNo());
                //注册地址
                map.put("province",temp.getRegisteredAddress());
                //企业联系人
                map.put("companyContactName",temp.getSellerUser().getCompanyContactName());
                //企业联系人邮箱
                map.put("companyContactEmail",temp.getSellerUser().getCompanyContactEmail());
                //经营范围
                map.put("businessScope",temp.getBusinessScope());
                //营业期限
                map.put("businessTime",new SimpleDateFormat("yyyy年MM月dd日").format(temp.getSellerUser().getBusinessStartTime())+"-"+new SimpleDateFormat("yyyy年MM月dd日").format(temp.getSellerUser().getBusinessEndTime()));
                //社会信用代码
                map.put("creditCode",temp.getSellerUser().getCreditCode());
                //所属行业
                map.put("companyIndustry",temp.getSellerUser().getCompanyIndustry());
                //法定代表人
                map.put("corporate",temp.getSellerUser().getCorporate());
                //法定身份证有效期
                String time = temp.getSellerUser().getCorporateCardNoTime();
                String[] arr = time.split(",");
                map.put("corporateCardNoTime",DateUtil.format(DateUtil.parse(arr[0]),"yyyy年MM月dd日")+"-"+DateUtil.format(DateUtil.parse(arr[1]),"yyyy年MM月dd日"));
                //企业联系人电话
                map.put("companyContactPhone",temp.getSellerUser().getCompanyContactPhone());
                //店铺介绍
                map.put("shopDescribe",temp.getShopDescribe() != null?temp.getShopDescribe():"");

                resultListE.add(map);
            }
        }

        ExcelWriter writer = new ExcelWriter(false,"个体商铺信息");
        //自定义标题别名
        Map headerAliasP = new LinkedHashMap<>();
        headerAliasP.put("shopName", "商铺名称");
        headerAliasP.put("jzmShopType", "商铺类型");
        headerAliasP.put("isProxy", "是否为代理商");
        headerAliasP.put("createDate", "创建时间");
        headerAliasP.put("jzmShopAuditStatus","审核状态");
        headerAliasP.put("name","姓名");
        headerAliasP.put("identityCardNo","身份证号");
        headerAliasP.put("email", "邮箱");
        headerAliasP.put("mobile", "联系电话");
        headerAliasP.put("shopDescribe", "店铺介绍");
        headerAliasP.put("businessScope", "经营范围");
        headerAliasP.put("province", "店铺地址");
        writer.setHeaderAlias(headerAliasP);
        // 合并单元格后的标题行，使用默认标题样式
        writer.merge(11, "个人商铺信息");
        // 一次性写出内容，使用默认样式
        writer.write(resultListP,true);
        //设置所有列为自动宽度，不考虑合并单元格
        writer.autoSizeColumnAll();
        writer.setSheet("企业商铺信息");
        //自定义标题别名
        Map headerAliasE = new LinkedHashMap<>();
        headerAliasE.put("shopName", "商铺名称");
        headerAliasE.put("jzmShopType", "商铺类型");
        headerAliasE.put("isProxy", "是否为代理商");
        headerAliasE.put("createDate", "创建时间");
        headerAliasE.put("jzmShopAuditStatus","审核状态");
        headerAliasE.put("registeredCapital","注册资本");
        headerAliasE.put("compnayType","企业类型");
        headerAliasE.put("companyPhone", "企业电话");
        headerAliasE.put("corporateCardNo", "法人身份证号");
        headerAliasE.put("province", "注册地址");
        headerAliasE.put("companyContactName", "企业联系人");
        headerAliasE.put("companyContactEmail", "企业联系人邮箱");
        headerAliasE.put("businessScope", "经营范围");
        headerAliasE.put("businessTime", "营业期限");
        headerAliasE.put("creditCode", "社会信用代码");
        headerAliasE.put("companyIndustry", "所属行业");
        headerAliasE.put("corporate", "法定代表人");
        headerAliasE.put("corporateCardNoTime", "法定身份证有效期");
        headerAliasE.put("companyContactPhone", "企业联系人电话");
        headerAliasE.put("shopDescribe", "店铺介绍");
        writer.setHeaderAlias(headerAliasE);
        // 合并单元格后的标题行，使用默认标题样式
        writer.merge(19, "企业商铺信息");
        writer.write(resultListE,true);
        //设置所有列为自动宽度，不考虑合并单元格
        writer.autoSizeColumnAll();
        response.setContentType("application/vnd.ms-excel;charset=utf-8");
        //test.xls是弹出下载对话框的文件名，不能为中文，中文请自行编码
        String codedFileName = java.net.URLEncoder.encode("商铺信息", "UTF-8");
        response.setHeader("Content-Disposition","attachment;filename="+ codedFileName + ".xls");
        writer.flush(response.getOutputStream());
        // 关闭writer，释放内存
        writer.close();
        return ResultUtil.success(ResultEnum.EXPORT_SUCCESS.getCode(),ResultEnum.EXPORT_SUCCESS.getMsg());
    }

    /**
     * 根据条件查询个体商铺信息
     *                     
     * @param shopName
     * @param shopCode
     * @param jzmShopAuditStatus
     * @return
     */
    public List findByPersonal(String shopName, String shopCode, String jzmShopAuditStatus) {

        Specification specification = Specifications.and()
                .like(StrUtil.isNotEmpty(shopName),"shopName","%"+shopName+"%")
                .eq(StrUtil.isNotEmpty(shopCode),"shopCode",shopCode)
                .eq(StrUtil.isNotEmpty(jzmShopAuditStatus),"jzmShopAuditStatus",JzmShopAuditStatus.getJzmShopAuditStatus(jzmShopAuditStatus))
                .eq("jzmUserType", JzmUserType.SELLER)
                .eq("jzmShopType",JzmShopType.PERSONAL)
                .build();

       return jzmUserRepository.findAll(specification);
    }

    /**
     *  根据条件查询企业商铺信息
     *                      
     *
     * @param shopName
     * @param shopCode
     * @param jzmShopAuditStatus
     * @return
     */
    public List findByEnterprise(String shopName, String shopCode, String jzmShopAuditStatus) {
        Specification specification = Specifications.and()
                .like(StrUtil.isNotEmpty(shopName),"shopName","%"+shopName+"%")
                .eq(StrUtil.isNotEmpty(shopCode),"shopCode",shopCode)
                .eq(StrUtil.isNotEmpty(jzmShopAuditStatus),"jzmShopAuditStatus",JzmShopAuditStatus.getJzmShopAuditStatus(jzmShopAuditStatus))
                .eq("jzmUserType", JzmUserType.SELLER)
                .eq("jzmShopType",JzmShopType.ENTERPRISE)
                .build();

        return jzmUserRepository.findAll(specification);
    }
}