SpringBoot中使用JeecgBoot的Autopoi导出Excel的方法步骤

<!-- AutoPoi Excel工具类-->
<dependency>
  <groupId>org.jeecgframework</groupId>
  <artifactId>autopoi-web</artifactId>
  <version>1.1.1</version>
  <exclusions>
    <exclusion>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
    </exclusion>
  </exclusions>
</dependency>

<repositories>
<repository>
  <id>aliyun</id>
  <name>aliyun Repository</name>
  <url>http://maven.aliyun.com/nexus/content/groups/public</url>
  <snapshots>
    <enabled>false</enabled>
  </snapshots>
</repository>
<repository>
  <id>jeecg</id>
  <name>jeecg Repository</name>
  <url>http://maven.jeecg.org/nexus/content/repositories/jeecg</url>
  <snapshots>
    <enabled>false</enabled>
  </snapshots>
</repository>
</repositories>

import org.jeecgframework.poi.excel.def.NormalExcelConstants;
import org.jeecgframework.poi.excel.entity.ExportParams;
import org.jeecgframework.poi.excel.view.JeecgEntityExcelView;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

/**
 * 导出excel工具类
 *
 * @author lizhou
 */
public class ExcelUtils {

  /**
   * 导出excel
   *
   * @param title   文件标题
   * @param clazz   实体类型
   * @param exportList 导出数据
   * @param <T>
   * @return
   */
  public static <T> ModelAndView export(String title, Class<T> clazz, List<T> exportList) {
    ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
    mv.addObject(NormalExcelConstants.FILE_NAME, title);
    mv.addObject(NormalExcelConstants.CLASS, clazz);
    mv.addObject(NormalExcelConstants.PARAMS, new ExportParams(title, title));
    mv.addObject(NormalExcelConstants.DATA_LIST, exportList);
    return mv;
  }

}

package com.zyxx.sys.entity;

import com.baomidou.mybatisplus.annotation.*;
import com.baomidou.mybatisplus.extension.activerecord.Model;
import com.zyxx.common.annotation.Dict;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;
import org.jeecgframework.poi.excel.annotation.Excel;

import java.io.Serializable;

/**
 * <p>
 * 用户信息表
 * </p>
 *
 * @author lizhou
 * @since 2020-07-06
 */
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("sys_user_info")
@ApiModel(value = "SysUserInfo对象", description = "用户信息表")
public class SysUserInfo extends Model<SysUserInfo> {


  @ApiModelProperty(value = "ID")
  @TableId(value = "id", type = IdType.AUTO)
  private Long id;

  @Excel(name = "账号", width = 15)
  @ApiModelProperty(value = "登录账号")
  @TableField("account")
  private String account;

  @ApiModelProperty(value = "登录密码")
  @TableField("password")
  private String password;

  @Excel(name = "姓名", width = 15)
  @ApiModelProperty(value = "姓名")
  @TableField("name")
  private String name;

  @Excel(name = "电话", width = 15)
  @ApiModelProperty(value = "电话")
  @TableField("phone")
  private String phone;

  @ApiModelProperty(value = "头像")
  @TableField("avatar")
  private String avatar;

  @Excel(name = "性别", width = 15)
  @ApiModelProperty(value = "性别（0--未知1--男2--女）")
  @TableField("sex")
  private Integer sex;

  @Excel(name = "状态", width = 15)
  @ApiModelProperty(value = "状态（0--正常1--冻结）")
  @TableField("status")
  private Integer status;

  @Excel(name = "创建时间", width = 30)
  @ApiModelProperty(value = "创建时间")
  @TableField("create_time")
  private String createTime;
}

@ApiOperation(value = "导出用户信息", notes = "导出用户信息")
@GetMapping(value = "/export")
public ModelAndView exportXls(SysUserInfo sysUserInfo) {
  return ExcelUtils.export("用户信息统计报表", SysUserInfo.class, sysUserInfoService.list(1, Integer.MAX_VALUE, sysUserInfo).getData());
}

@Excel(name = "性别", width = 15, dicCode = "sex")
@ApiModelProperty(value = "性别（0--未知1--男2--女）")
@TableField("sex")
@Dict(dictCode = "sex")
private Integer sex;

import org.jeecgframework.core.util.ApplicationContextUtil;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * autopoi 配置类
 *
 * @Author Lizhou
 */

@Configuration
public class AutoPoiConfig {
	
	/**
	 * excel注解字典参数支持(导入导出字典值，自动翻译)
	 * 举例： @Excel(name = "性别", width = 15, dicCode = "sex")
	 * 1、导出的时候会根据字典配置，把值1,2翻译成：男、女;
	 * 2、导入的时候，会把男、女翻译成1,2存进数据库;
	 * @return
	 */
	@Bean
	public ApplicationContextUtil applicationContextUtil() {
		return new org.jeecgframework.core.util.ApplicationContextUtil();
	}

}

import com.zyxx.sys.entity.SysDictDetail;
import com.zyxx.sys.mapper.SysDictDetailMapper;
import lombok.extern.slf4j.Slf4j;
import org.jeecgframework.dict.service.AutoPoiDictServiceI;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * 描述：AutoPoi Excel注解支持字典参数设置
 * 举例： @Excel(name = "性别", width = 15, dicCode = "sex")
 * 1、导出的时候会根据字典配置，把值1,2翻译成：男、女;
 * 2、导入的时候，会把男、女翻译成1,2存进数据库;
 *
 * @Author lizhou
 */
@Slf4j
@Service
public class AutoPoiDictService implements AutoPoiDictServiceI {

  @Autowired
  private SysDictDetailMapper sysDictDetailMapper;

  /**
   * 通过字典翻译字典文本
   *
   * @Author lizhou
   */
  @Override
  public String[] queryDict(String dicTable, String dicCode, String dicText) {
    List<String> dictReplaces = new ArrayList<>();
    List<SysDictDetail> dictList = sysDictDetailMapper.queryDictItemsByCode(dicCode);
    for (SysDictDetail t : dictList) {
      if (t != null) {
        dictReplaces.add(t.getName() + "_" + t.getCode());
      }
    }
    if (dictReplaces != null && dictReplaces.size() != 0) {
      return dictReplaces.toArray(new String[dictReplaces.size()]);
    }
    return null;
  }
}