Java利用EasyPoi实现excel文件导入和导出

1.导入依赖

    cn.afterturn
    easypoi-spring-boot-starter
    4.1.3

2.去需要导出的实体类中注解

package com.study.server.pojo;

import cn.afterturn.easypoi.excel.annotation.Excel;
import cn.afterturn.easypoi.excel.annotation.ExcelEntity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import java.io.Serializable;
import java.time.LocalDateTime;
import java.util.Date;

import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
import lombok.EqualsAndHashCode;

/**
 * 

 * 
 * 
 *
 * @author mq
 * @since 2022-03-24
 */
@Data
@EqualsAndHashCode(callSuper = false)
@TableName("t_employee")
@ApiModel(value="Employee对象", description="")
public class Employee implements Serializable {

    private static final long serialVersionUID = 1L;

    @ApiModelProperty(value = "员工编号")
    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;

    @ApiModelProperty(value = "员工姓名")
    @Excel(name="员工姓名")
    private String name;

    @ApiModelProperty(value = "性别")
    @Excel(name="性别")
    private String gender;

    @ApiModelProperty(value = "出生日期")
    @JsonFormat(pattern = "yyyy-MM-dd",timezone = "Asia/Shanghai")
    @Excel(name = "出生日期",format = "yyyy-MM-dd",width = 20)
    private Date birthday;


    @ApiModelProperty(value = "身份证号")
    @Excel(name = "身份证号",width = 30)
    private String idCard;

    @ApiModelProperty(value = "婚姻状况")
    @Excel(name = "婚姻状况")
    private String wedlock;

    @ApiModelProperty(value = "民族")
    private Integer nationId;

    @ApiModelProperty(value = "籍贯")
    @Excel(name = "籍贯")
    private String nativePlace;

    @ApiModelProperty(value = "政治面貌")
    private Integer politicId;

    @ApiModelProperty(value = "邮箱")
    @Excel(name = "邮箱",width = 30)
    private String email;

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

    @ApiModelProperty(value = "联系地址")
    @Excel(name = "联系地址",width = 40)
    private String address;


    @ApiModelProperty(value = "所属部门")
    private Integer departmentId;

    @ApiModelProperty(value = "职称ID")
    private Integer jobLevelId;

    @ApiModelProperty(value = "职位ID")
    private Integer posId;


    @ApiModelProperty(value = "聘用形式")
    @Excel(name = "聘用形式")
    private String engageForm;

    @ApiModelProperty(value = "最高学历")
    @Excel(name = "最高学历")
    private String tiptopDegree;

    @ApiModelProperty(value = "所属专业")
    @Excel(name = "所属专业",width = 20)
    private String specialty;

    @ApiModelProperty(value = "毕业院校")
    @Excel(name = "毕业院校",width = 20)
    private String school;


    @ApiModelProperty(value = "入职日期")
    @JsonFormat(pattern = "yyyy-MM-dd",timezone = "Asia/Shanghai")
    @Excel(name = "入职日期",format = "yyyy-MM-dd",width = 20)
    private Date beginDate;

    @ApiModelProperty(value = "在职状态")
    @Excel(name = "在职状态")
    private String workState;

    @ApiModelProperty(value = "工号")
    @Excel(name = "工号")
    private String workID;

    @ApiModelProperty(value = "合同期限")
    @Excel(name = "合同期限",suffix = "年")
    private Double contractTerm;

    @ApiModelProperty(value = "转正日期")
    @JsonFormat(pattern = "yyyy-MM-dd",timezone = "Asia/Shanghai")
    @Excel(name = "转正日期",format = "yyyy-MM-dd",width = 20)
    private Date conversionTime;

    @ApiModelProperty(value = "离职日期")
    @JsonFormat(pattern = "yyyy-MM-dd",timezone = "Asia/Shanghai")
    @Excel(name = "离职日期",format = "yyyy-MM-dd",width = 20)
    private Date notWorkDate;

    @ApiModelProperty(value = "合同起始日期")
    @JsonFormat(pattern = "yyyy-MM-dd",timezone = "Asia/Shanghai")
    @Excel(name = "合同起始日期",format = "yyyy-MM-dd",width = 20)
    private Date beginContract;

    @ApiModelProperty(value = "合同终止日期")
    @JsonFormat(pattern = "yyyy-MM-dd",timezone = "Asia/Shanghai")
    @Excel(name = "合同终止日期",format = "yyyy-MM-dd",width = 20)
    private Date endContract;

    @ApiModelProperty(value = "工龄")
    private Integer workAge;

    @ApiModelProperty(value = "工资账套ID")
    private Integer salaryId;

    @ApiModelProperty(value = "民族")
    @TableField(exist = false)
    @ExcelEntity(name = "民族")
    private Nation nation;

    @ApiModelProperty(value = "政治面貌")
    @TableField(exist = false)
    @ExcelEntity(name = "政治面貌")
    private PoliticsStatus politicsStatus;

    @ApiModelProperty(value = "部门")
    @TableField(exist = false)
    @ExcelEntity(name = "部门")
    private Department department;

    @ApiModelProperty(value = "职称")
    @TableField(exist = false)
    @ExcelEntity(name = "职称")
    private Joblevel joblevel;

    @ApiModelProperty(value = "职位")
    @TableField(exist = false)
    @ExcelEntity(name = "职位")
    private Position position;

    @ApiModelProperty(value = "工资套账")
    @TableField(exist = false)
    private Salary salary;

    public static long getSerialVersionUID() {
        return serialVersionUID;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }

    public String getIdCard() {
        return idCard;
    }

    public void setIdCard(String idCard) {
        this.idCard = idCard;
    }

    public String getWedlock() {
        return wedlock;
    }

    public void setWedlock(String wedlock) {
        this.wedlock = wedlock;
    }

    public Integer getNationId() {
        return nationId;
    }

    public void setNationId(Integer nationId) {
        this.nationId = nationId;
    }

    public String getNativePlace() {
        return nativePlace;
    }

    public void setNativePlace(String nativePlace) {
        this.nativePlace = nativePlace;
    }

    public Integer getPoliticId() {
        return politicId;
    }

    public void setPoliticId(Integer politicId) {
        this.politicId = politicId;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public Integer getDepartmentId() {
        return departmentId;
    }

    public void setDepartmentId(Integer departmentId) {
        this.departmentId = departmentId;
    }

    public Integer getJobLevelId() {
        return jobLevelId;
    }

    public void setJobLevelId(Integer jobLevelId) {
        this.jobLevelId = jobLevelId;
    }

    public Integer getPosId() {
        return posId;
    }

    public void setPosId(Integer posId) {
        this.posId = posId;
    }

    public String getEngageForm() {
        return engageForm;
    }

    public void setEngageForm(String engageForm) {
        this.engageForm = engageForm;
    }

    public String getTiptopDegree() {
        return tiptopDegree;
    }

    public void setTiptopDegree(String tiptopDegree) {
        this.tiptopDegree = tiptopDegree;
    }

    public String getSpecialty() {
        return specialty;
    }

    public void setSpecialty(String specialty) {
        this.specialty = specialty;
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public Date getBeginDate() {
        return beginDate;
    }

    public void setBeginDate(Date beginDate) {
        this.beginDate = beginDate;
    }

    public String getWorkState() {
        return workState;
    }

    public void setWorkState(String workState) {
        this.workState = workState;
    }

    public String getWorkID() {
        return workID;
    }

    public void setWorkID(String workID) {
        this.workID = workID;
    }

    public Double getContractTerm() {
        return contractTerm;
    }

    public void setContractTerm(Double contractTerm) {
        this.contractTerm = contractTerm;
    }

    public Date getConversionTime() {
        return conversionTime;
    }

    public void setConversionTime(Date conversionTime) {
        this.conversionTime = conversionTime;
    }

    public Date getNotWorkDate() {
        return notWorkDate;
    }

    public void setNotWorkDate(Date notWorkDate) {
        this.notWorkDate = notWorkDate;
    }

    public Date getBeginContract() {
        return beginContract;
    }

    public void setBeginContract(Date beginContract) {
        this.beginContract = beginContract;
    }

    public Date getEndContract() {
        return endContract;
    }

    public void setEndContract(Date endContract) {
        this.endContract = endContract;
    }

    public Integer getWorkAge() {
        return workAge;
    }

    public void setWorkAge(Integer workAge) {
        this.workAge = workAge;
    }

    public Integer getSalaryId() {
        return salaryId;
    }

    public void setSalaryId(Integer salaryId) {
        this.salaryId = salaryId;
    }

    public Nation getNation() {
        return nation;
    }

    public void setNation(Nation nation) {
        this.nation = nation;
    }

    public PoliticsStatus getPoliticsStatus() {
        return politicsStatus;
    }

    public void setPoliticsStatus(PoliticsStatus politicsStatus) {
        this.politicsStatus = politicsStatus;
    }

    public Department getDepartment() {
        return department;
    }

    public void setDepartment(Department department) {
        this.department = department;
    }

    public Joblevel getJoblevel() {
        return joblevel;
    }

    public void setJoblevel(Joblevel joblevel) {
        this.joblevel = joblevel;
    }

    public Position getPosition() {
        return position;
    }

    public void setPosition(Position position) {
        this.position = position;
    }
}

3.去controller中写对应的方法

/**8
 * 导出员工数据excel
 * @param response
 */
@GetMapping("/export")
public void exportEmployee(HttpServletResponse response) throws IOException {
    List list=employeeService.getEmployee(null);
    ExportParams params=new ExportParams("员工表","员工表", ExcelType.HSSF);
    Workbook workbook=ExcelExportUtil.exportExcel(params,Employee.class,list);
    ServletOutputStream outputStream = null;
    try {
        //流形式
        response.setHeader("content-type","application/octet-stream");
        //中文乱码
        response.setHeader("content-disposition","attachment;filename="+ URLEncoder.encode("员工表.xls","UTF-8"));
        outputStream = response.getOutputStream();
        workbook.write(outputStream);
    } catch (Exception e) {
        e.printStackTrace();
    }finally {
        if (null != outputStream){
            try {
                outputStream.flush();
                outputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

/***
 * 导入员工数据
 * @param file
 * @return
 */
@PostMapping("/import")
public RespBean importEmployee(MultipartFile file){
    ImportParams params = new ImportParams();
    //去掉标题行
    params.setTitleRows(1);
    List nations = nationService.list();
    List politicsStatuses = politicsStatusService.list();
    List positions = positionService.list();
    List departments = departmentService.list();
    List joblevels = joblevelService.list();
    try {
        List list = ExcelImportUtil.importExcel(file.getInputStream(), Employee.class, params);
        list.forEach(employee ->{
            //民族id
            employee.setNationId(nations.get(nations.indexOf(new Nation(employee.getNation().getName()))).getId());
            //政治面貌id
            employee.setPoliticId(politicsStatuses.get(politicsStatuses.indexOf(new PoliticsStatus(employee.getPoliticsStatus().getName()))).getId());
            //部门id
            employee.setDepartmentId(departments.get(departments.indexOf(new Department(employee.getDepartment().getName()))).getId());
            //职称id
            employee.setJobLevelId(joblevels.get(joblevels.indexOf(new Joblevel(employee.getJoblevel().getName()))).getId());
            //职位id
            employee.setPosId(positions.get(positions.indexOf(new Position(employee.getPosition().getName()))).getId());
        });
        if (employeeService.saveBatch(list)){
            return RespBean.success("导入成功");
        }
        return RespBean.error("导入失败");
​
    } catch (Exception e) {
        e.printStackTrace();
    }
    return RespBean.error("导入失败");
}

4.Postman测试

测试导出：

 

测试导入：