EasyPoi导出Excel

1.导入maven依赖

            cn.afterturn
            easypoi-base
            3.2.0
        
        
            cn.afterturn
            easypoi-web
            3.2.0
        
        
            cn.afterturn
            easypoi-annotation
            3.2.0
        

2.一个简单的测试

• 实体

  package com.cw.demo.entity;

  import cn.afterturn.easypoi.excel.annotation.Excel;
  import lombok.AllArgsConstructor;
  import lombok.Data;
  import lombok.NoArgsConstructor;

  @Data
  @NoArgsConstructor
  @AllArgsConstructor
  public class Person {
  private Integer id;
  @Excel(name = “姓名”,width= 20,height = 30)
  private String name;
  @Excel(name = “年龄”,width= 20,height = 30)
  private Integer age;
  @Excel(name = “性别”,width = 20,height = 30,replace = {“男_1”,“女_0”},suffix = “生”)
  private Integer sex;
  }
  2.控制器

  /利用easypoi导出excel/
  @RequestMapping("/exportExcel")
  public void exportExcel(HttpServletResponse response){
  String fileName=“个人信息.xlsx”;
  List list=new ArrayList<>();
  Person p1=new Person(1,“lks”,23,1);
  Person p2=new Person(2,“lks”,23,0);
  Person p3=new Person(3,“lks”,23,1);
  Person p4=new Person(4,“lks”,23,0);
  list.add(p1);
  list.add(p2);
  list.add(p3);
  list.add(p4);
  Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(“个人信息”, “person”), Person.class, list);
  try {
  response.setCharacterEncoding(“UTF-8”);
  response.setHeader(“content-Type”, “application/vnd.ms-excel”);
  response.setHeader(“Content-Disposition”, “attachment;filename=” + URLEncoder.encode(fileName, “UTF-8”));
  workbook.write(response.getOutputStream());
  } catch (IOException e) {
  throw new RuntimeException(e);
  }
  }

3.功能拓展

*实体上的注解**
课程实体
    @ExcelTarget("courseEntity")
     public class CourseEntity implements java.io.Serializable {
        /** 主键 */
        private String        id;
        /** 课程名称 */
        @Excel(name = "课程名称", orderNum = "1", width = 25)
        private String        name;
        /** 老师主键 */
        @ExcelEntity(id = "absent")
        private TeacherEntity mathTeacher;
    
        @ExcelCollection(name = "学生", orderNum = "4")
        private List students;
     }

4.导出带图片的excel

List list;

    @Before
    public void initData() {
        list = new ArrayList();
        list.add(new CompanyHasImgModel("百度", "imgs/company/baidu.png", "北京市海淀区西北旺东路10号院百度科技园1号楼"));
        list.add(new CompanyHasImgModel("阿里巴巴", "imgs/company/ali.png", "北京市海淀区西北旺东路10号院百度科技园1号楼"));
        list.add(new CompanyHasImgModel("Lemur", "imgs/company/lemur.png", "亚马逊热带雨林"));
        list.add(new CompanyHasImgModel("一众", "imgs/company/one.png", "山东济宁俺家"));


    }

    @Test
    public void exportCompanyImg() throws Exception {

        File savefile = new File("D:/excel/");
        if (!savefile.exists()) {
            savefile.mkdirs();
        }
        Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(), CompanyHasImgModel.class, list);
        FileOutputStream fos = new FileOutputStream("D:/excel/ExcelExportHasImgTest.exportCompanyImg.xls");
        workbook.write(fos);
        fos.close();
    }

5.导入excel
需要把实体的注解修改
@RequestMapping("/importExcel")
public void importExcel(){
String filepath = “/Users/qiuhaigang/Desktop/个人信息.xlsx”;
ImportParams params=new ImportParams();
params.setTitleRows(1);
params.setHeadRows(1);
List person = ExcelImportUtil.importExcel(new File(filepath), PersonImport.class, params);
System.out.println(person);
if(person != null){
for (PersonImport p:
person) {
System.out.println§;
}
}

    }