easyexcel导出导入完整版
easyexcel实现文件导入导出
- 1，环境配置
- 2，导出（根据数据表，导出为excel）
- 3，导入（excel表导入数据库，请准备一个空表）
1，环境配置
我用的是springboot项目
（1）首先pom.xml
com.alibaba
easyexcel
1.1.2-beta5
org.apache.poi
poi
3.17
org.apache.poi
poi-ooxml
3.17
（2）放几个工具类
1，Excelexception，excel异常类
package cn.project.cnfedu.utils;
/**
* Created with IntelliJ IDEA
*
* @Author liangjiansong [email protected]
* @Description Excel 解析 Exception
* @Date 2020-6-2
* @Time 20:05
*/
public class ExcelException extends RuntimeException {
public ExcelException(String message) {
super(message);
}
}
2，Excellistener，excel监听类
package cn.project.cnfedu.utils;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import java.util.ArrayList;
import java.util.List;
/**
* Created with IntelliJ IDEA
*
*@Author liangjiansong [email protected]
*@Description Excel 解析 Exception
*@Date 2020-6-2
*@Time 20:05
*/
public class ExcelListener extends AnalysisEventListener {
//自定义用于暂时存储data。
//可以通过实例获取该值
private List3，excelUtil工具类
package cn.project.cnfedu.utils;
import com.alibaba.excel.ExcelReader;
import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.metadata.BaseRowModel;
import com.alibaba.excel.metadata.Sheet;
import com.alibaba.excel.support.ExcelTypeEnum;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.List;
/**
* Created with IntelliJ IDEA
*
*@Author liangjiansong [email protected]
*@Description Excel 解析 Exception
*@Date 2020-6-2
*@Time 20:05
*/
public class ExcelUtil {
/**
* 读取 Excel(多个 sheet)
*
* @param excel 文件
* @param rowModel 实体类映射，继承 BaseRowModel 类
* @return Excel 数据 list
*/
public static List4，excelWriterFactory
package cn.project.cnfedu.utils;
import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.metadata.BaseRowModel;
import com.alibaba.excel.metadata.Sheet;
import com.alibaba.excel.support.ExcelTypeEnum;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
/**
* Created with IntelliJ IDEA
*
*@Author liangjiansong [email protected]
*@Description Excel 解析 Exception
*@Date 2020-6-2
*@Time 20:05
*/
public class ExcelWriterFactroy extends ExcelWriter {
private OutputStream outputStream;
private int sheetNo = 1;
public ExcelWriterFactroy(OutputStream outputStream, ExcelTypeEnum typeEnum) {
super(outputStream, typeEnum);
this.outputStream = outputStream;
}
public ExcelWriterFactroy write(List list, String sheetName,
BaseRowModel object) {
this.sheetNo++;
try {
Sheet sheet = new Sheet(sheetNo, 0, object.getClass());
sheet.setSheetName(sheetName);
this.write(list, sheet);
} catch (Exception ex) {
ex.printStackTrace();
try {
outputStream.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
return this;
}
@Override
public void finish() {
super.finish();
try {
outputStream.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
2，导出（根据数据表，导出为excel）
（1）pojo层
package cn.project.cnfedu.pojo;
import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.metadata.BaseRowModel;
import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.format.annotation.NumberFormat;
import java.util.Date;
//@EqualsAndHashCode(callSuper = true)
@Data
public class StudentExcelFileModel extends BaseRowModel {
/**
* value: 表头名称
* index: 列的号, 0表示第一列
*/
//学员编号
@ExcelProperty(value = "序号", index = 0)
private Long id;
//学员姓名
@ExcelProperty(value = "姓名", index = 1)
private String name;
//学员手机号码
@ExcelProperty(value = "手机", index = 2)
private String phone;
//学员qq号
@ExcelProperty(value = "qq", index = 3)
private String qq;
//学员微信号
@ExcelProperty(value = "微信", index = 4)
private String wechat;
//学员性别
@ExcelProperty(value = "性别", index = 5)
private Integer gender;
//上课城区
@ExcelProperty(value = "上课城区", index = 6)
private Integer areaid;
//上课地址
@ExcelProperty(value = "上课地址", index = 7)
private String address;
//年级
@ExcelProperty(value = "年级", index = 8)
private Integer gradeid;
//辅导科目
@ExcelProperty(value = "辅导科目", index = 9)
private String subject;
//每周次数
@ExcelProperty(value = "每周次数", index = 10)
private Integer num;
//每次时数
@ExcelProperty(value = "每周时数", index = 11)
private Integer hour;
//可授课时间
@ExcelProperty(value = "可授课时间", index = 12)
private String teachingtimeid;
//学员情况描述
@ExcelProperty(value = "学员描述情况", index = 13)
private String desc;
//教员性别
@ExcelProperty(value = "教员性别", index = 14)
private Integer teacherGender;
//教员类别
@ExcelProperty(value = "教员类别", index = 15)
private Integer teachertype;
//对教员要求
@ExcelProperty(value = "对教员的要求", index = 16)
private String teacherwant;
//支付报酬 decimal BigDecimal
@ExcelProperty(value = "薪资要求", index = 17)
@NumberFormat(pattern="#.##")
private double payment;
//学员密码
@ExcelProperty(value = "密码", index = 18)
private String password;
//学员状态
@ExcelProperty(value = "学员状态", index = 19)
private Integer stuStatus;
//是否已经支付
@ExcelProperty(value = "是否支付", index = 20)
private Integer ispay;
//籍贯
@ExcelProperty(value = "籍贯", index = 21)
private Integer nativeplace;
//学员审核状态
@ExcelProperty(value = "学员审核状态", index = 22)
private Integer stuAuditstatus;
//检索ID
@ExcelProperty(value = "检索id", index = 23)
private Long indexid;
//预约情况
@ExcelProperty(value = "预约情况", index = 24)
private Integer appointment;
//创建者编号
@ExcelProperty(value = "创建者", index = 25)
private Integer createdby;
//创建时间
@DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@ExcelProperty(value = "创建时间", index = 26)
private Date creationdate;
//修改者编号
@ExcelProperty(value = "修改者", index = 27)
private Integer modifyby;
//修改时间
@DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@ExcelProperty(value = "修改时间", index = 28)
private Date modifyDate;
}
（2）dao层
@Mapper
public interface ExcelStudentMapper {
//导出excel的方法
List getAllStudent();
}
（3）xml
id, `name`, phone,qq, weChat, gender, areaId, address, gradeId, subject, num, `hour`, teachingTimeId,
`desc`, teacherGender, teacherType, teacherWant, payment, password, stuStatus, isPay,
nativePlace, stuAuditStatus, indexId, Appointment, createdBy, creationDate, modifyBy,
modifyDate
（4）service
public interface ExcelService {
//导出所有的学生
List getAllStudent(HttpServletResponse response) throws IOException;
}
（5）serviceimpl
import cn.project.cnfedu.service.ExcelService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@Service
public class ExcelServiceImpl implements ExcelService {
@Resource
private ExcelStudentMapper excelMapper;
@Override
public List getAllStudent(HttpServletResponse response)throws IOException {
Listlist=excelMapper.getAllStudent();
return list;
}
（6）controller
package cn.project.cnfedu.controller;
import cn.project.cnfedu.pojo.StudentExcelFileModel;
import cn.project.cnfedu.pojo.StudentExcelFileModel2;
import cn.project.cnfedu.service.ExcelService;
import cn.project.cnfedu.utils.ExcelUtil;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@RestController
@RequestMapping("/excel")
public class ExcelController {
@Resource
private ExcelService excelService;
//导出
@GetMapping(value="/export")
public void exportStudentinfo(HttpServletResponse response){
try {
List list=excelService.getAllStudent(response);
//excel的名称
String fileName="导出学生";
String sheetName = "学生列表";
ExcelUtil.writeExcel(response, list, fileName, sheetName, new StudentExcelFileModel());
} catch (IOException e) {
e.printStackTrace();
}
}
fileName就是excel文件名，先查询出list。再调用writeExcel方法。将list丢进去。
（7）测试
直接用谷歌浏览器访问接口即可
自动下载
打开后数据正常
3，导入（excel表导入数据库，请准备一个空表）
（1）pojo
package cn.project.cnfedu.pojo;
import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.metadata.BaseRowModel;
import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.format.annotation.NumberFormat;
import java.util.Date;
@Data
public class StudentExcelFileModel2 extends BaseRowModel {
//学员编号
@ExcelProperty(index = 0)
private Long id;
//学员姓名
@ExcelProperty(index = 1)
private String name;
//学员手机号码
@ExcelProperty(index = 2)
private String phone;
//学员qq号
@ExcelProperty(index = 3)
private String qq;
//学员微信号
@ExcelProperty(index = 4)
private String wechat;
//学员性别
@ExcelProperty(index = 5)
private Integer gender;
//上课城区
@ExcelProperty(index = 6)
private Integer areaid;
//上课地址
@ExcelProperty(index = 7)
private String address;
//年级
@ExcelProperty(index = 8)
private Integer gradeid;
//辅导科目
@ExcelProperty(index = 9)
private String subject;
//每周次数
@ExcelProperty(index = 10)
private Integer num;
//每次时数
@ExcelProperty(index = 11)
private Integer hour;
//可授课时间
@ExcelProperty(index = 12)
private String teachingtimeid;
//学员情况描述
@ExcelProperty(index = 13)
private String desc;
//ljs
//教员性别
@ExcelProperty(index = 14)
private Integer teacherGender;
//教员类别
@ExcelProperty(index = 15)
private Integer teachertype;
//对教员要求
@ExcelProperty(index = 16)
private String teacherwant;
//支付报酬 decimal BigDecimal
@ExcelProperty(index = 17)
@NumberFormat(pattern="#.##")
private double payment;
//学员密码
@ExcelProperty(index = 18)
private String password;
//学员状态
@ExcelProperty(index = 19)
private Integer stuStatus;
//是否已经支付
@ExcelProperty(index = 20)
private Integer ispay;
//籍贯
@ExcelProperty(index = 21)
private Integer nativeplace;
//学员审核状态
@ExcelProperty(index = 22)
private Integer stuAuditstatus;
//检索ID
@ExcelProperty(index = 23)
private Long indexid;
//预约情况
@ExcelProperty(index = 24)
private Integer Appointment;
//创建者编号
@ExcelProperty(index = 25)
private Integer createdby;
//创建时间
@DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@ExcelProperty(index = 26)
private Date creationdate;
//修改者编号
@ExcelProperty(index = 27)
private Integer modifyby;
//修改时间
@DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@ExcelProperty(index = 28)
private Date modifyDate;
}
（2）dao
//excel导入数据库的方法
int getTabsByConditionLike(StudentExcelFileModel2 studentExcelFileModel2);
（3）xml
insert into fedu_student (
（4）service
//excel导入数据库的方法
int getTabsByConditionLike(StudentExcelFileModel2 studentExcelFileModel2);
（5）serviceImpl
@Override
public int getTabsByConditionLike(StudentExcelFileModel2 studentExcelFileModel2) {
return excelMapper.getTabsByConditionLike(studentExcelFileModel2);
}
（6）##controller
//导入
@PostMapping(value="/import")
public void importStudentinfo(@RequestParam("file") MultipartFile excel){
try {
List list= ExcelUtil.readExcel(excel,new StudentExcelFileModel2());
//调用底层数据库批量插入
int count=0;
for(Object obj:list){
/*System.out.println(((StudentExcelFileModel2)obj).getId());*/
count=excelService.getTabsByConditionLike(((StudentExcelFileModel2)obj));
count++;
}
Mapmap=new HashMap<>();
if(count!=0){
map.put("msg","插入成功");
map.put("result",true);
map.put("data","受影响行数"+count);
}else{
map.put("msg","插入失败");
map.put("result",false);
}
} catch (Exception e) {
e.printStackTrace();
}
}
注意点：导入的尽量用post请求。因为是multipart文件导入。post请求请给@requestparam，并且接口请求时候一定要指定这个file。。。否则会有错。
这里我采用for循环，插入数据库。
（7）测试用postman
先准备一个空表。
删了跑路
打开postman
（1）这里填好
（2）设置headers
（3）设置body，选择刚才导出来的excel，放进去
（4）
（5）
可以点发送了
看控制台很没有毛病
再看看刚才删掉的表。。。
