SpringBoot整合EasyExcel实现Excel导出功能

SpringBoot整合EasyExcel实现Excel导出功能

导入需要的依赖

   com.alibaba
   easyexcel
   1.1.2-beta5

编写实体类，映射表头

import com.alibaba.excel.annotation.ExcelProperty;
import com.alibaba.excel.metadata.BaseRowModel;
import lombok.Data;

import java.io.Serializable;
import java.util.Date;

@Data
public class Student extends BaseRowModel implements Serializable {
    public static final long serialVersionUID = 1L;
    @ExcelProperty(value = {"学号"}, index = 0)
    private Long studentId;

    @ExcelProperty(value = {"姓名"}, index = 1)
    private String studentName;

    @ExcelProperty(value = {"准考证号"}, index = 2)
    private long examId;

    @ExcelProperty(value = {"身份证号"}, index = 3)
    private String idNumber;

    @ExcelProperty(value = {"生源地"}, index = 4)
    private String cradle;

    @ExcelProperty(value = {"家庭住址"}, index = 5)
    private String address;

    @ExcelProperty(value = {"入学年份"}, index = 6)
    private Integer enroll_year;

    @ExcelProperty(value = {"班级Id"}, index = 7)
    private Integer classId;

    @ExcelProperty(value = {"房间Id"}, index = 8)
    private Integer roomId;

    @ExcelProperty(value = {"性别"}, index = 9)
    private String gender;

    @ExcelProperty(value = {"出生日期"}, index = 10)
    private Date birthday;

    @ExcelProperty(value = {"手机号"}, index = 11)
    private String phone;

    @ExcelProperty(value = {"邮箱"}, index = 12)
    private String mail;

    @ExcelProperty(value = {"激活状态"}, index = 13)
    private Integer infoStatus;

    @ExcelProperty(value = {"报到状态"}, index = 14)
    private Integer payStatus;

    @ExcelProperty(value = {"注册状态"}, index = 15)
    private Integer registerStatus;

    @ExcelProperty(value = {"交通工具"}, index = 16)
    private String transportation;

    @ExcelProperty(value = {"到达日期"}, index = 16)
    private Date date;
}

控制器使用

package org.graduation.freshmanwelcome.handler;

import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.metadata.Sheet;
import com.alibaba.excel.support.ExcelTypeEnum;
import org.graduation.freshmanwelcome.entity.Student;
import org.graduation.freshmanwelcome.service.StudentAdminService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@RestController
public class ExportHandler {

    @Autowired
    private StudentAdminService studentAdminService;

    @GetMapping("/exportExcel")
    public void export(HttpServletResponse response) throws IOException {
        List list = studentAdminService.queryAllStudent();
        ServletOutputStream out = response.getOutputStream();
        ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true);
        String fileName = "学生信息表";
        Sheet sheet = new Sheet(1, 0,Student.class);
        //设置自适应宽度
        sheet.setAutoWidth(Boolean.TRUE);
        // 第一个 sheet 名称
        sheet.setSheetName("学生信息");
        writer.write(list, sheet);
        //通知浏览器以附件的形式下载处理，设置返回头要注意文件名有中文
        response.setHeader("Content-disposition", "attachment;filename=" + new String( fileName.getBytes("gb2312"), "ISO8859-1" ) + ".xlsx");
        writer.finish();
        response.setContentType("multipart/form-data");
        response.setCharacterEncoding("utf-8");
        out.flush();
    }
}

测试