【wu-easy-excel-starter】1.2.2-JDK17-SNAPSHOT

介绍

wu-easy-excel-starter是一款面向对象的excel、文件导出框架。
实现的功能：
    1）针对Java中任何对象直接返回给web，在返回web过程自动将对象转换成想要的数据（Excel、File）
    2）前端传一个Excel过来，后端接口接收到的其实已经是Bean了

快速导出excel模块

依赖引入
 <dependency>
    <groupId>com.wu</groupId>
    <artifactId>wu-easy-excel-starter</artifactId>
    <version>1.2.2-JDK17-SNAPSHOT</version>
 </dependency>

基本用法

 @Data
 public class UseExcel {
 
     @EasyExcelFiled(name = "id")
     private Integer id;
 
     @EasyExcelFiled(name = "当前时间")
     private LocalDateTime currentTime;
 
     @EasyExcelFiled(name = "描述")
     private String desc;
 
     @EasyExcelFiled(name = "类型")
     private String type;
 }

    @EasyExcel(fileName = "导出数据")
    @GetMapping("/run/{size}")
    public List<UseExcel> run(@PathVariable Integer size) {
        List<UseExcel> useUserExcelList = new ArrayList<>();
        for (int i = 0; i < size; i++) {
            UseExcel useExcel = new UseExcel();
            useExcel.setCurrentTime(LocalDateTime.MAX);
            useExcel.setDesc("默认方式导出数据");
            useExcel.setId(i);
            useExcel.setType("默认方式双注解导出");
            useUserExcelList.add(useExcel);
        }
        return useUserExcelList;
    }

自定义字段注解用法

@Data
public class UseExcel {

    @JSONField(name = "id")
    private Integer id;

    @JSONField(name = "当前时间")
    private LocalDateTime currentTime;

    @JSONField(name = "描述")
    private String desc;

    @JSONField(name = "类型")
    private String type;
}
@EasyExcel(fileName = "非原生注解导出数据", filedColumnAnnotation = JSONField.class,filedColumnAnnotationAttribute = "name",multipleSheet = true, limit = 10,sheetShowContext = EasyExcel.SheetShowContext.TEXT)
@GetMapping("/run2/{size}")
public List<UseExcel> run2(@PathVariable Integer size) {
    List<UseExcel> useUserExcelList = new ArrayList<>();
    for (int i = 0; i < size; i++) {
        UseExcel useExcel = new UseExcel();
        useExcel.setCurrentTime(LocalDateTime.MAX);
        useExcel.setDesc("自定义字段注解方式导出数据");
        useExcel.setId(i);
        useExcel.setType("自定义字段注解导出");
        useUserExcelList.add(useExcel);
    }
    return useUserExcelList;
}         

• 说明 filedColumnAnnotation 从 JSONField注解的name属性中获取表头并导出数据
• multipleSheet 导出的数据分多个sheet(工作簿)
• limit每个sheet 有10条数据
• sheetShowContext每个sheet的名称使用EasyExcel.SheetShowContext.TEXT 中文

自定义字段注解+自定控制器注解用法

@Data
public class UseExcel {

    @JSONField(name = "id")
    private Integer id;

    @JSONField(name = "当前时间")
    private LocalDateTime currentTime;

    @JSONField(name = "描述")
    private String desc;

    @JSONField(name = "类型")
    private String type;
}

• 自定意义EasyExcel注解

  @Target({ElementType.TYPE,ElementType.METHOD})
  @Retention(RetentionPolicy.RUNTIME)
  @Documented
  @Inherited
  @EasyExcel(useAnnotation = false,filedColumnAnnotation = JSONField.class)
  public @interface EasyExcelTemp {

    /**
     * 文件名称
     * @return String
     */
    @AliasFor(annotation = EasyExcel.class,attribute = "fileName")
    String fileName();
  

  }

• 使用方法

  @EasyExcelTemp(fileName = "自定义注解导出")
  @GetMapping("/run4/{size}")
  public List<UseExcel> run4(@PathVariable Integer size) {
  List<UseExcel> useUserExcelList = new ArrayList<>();
  for (int i = 0; i < size; i++) {
  UseExcel useExcel = new UseExcel();
  useExcel.setCurrentTime(LocalDateTime.MAX);
  useExcel.setDesc("自定义注解导出");
  useExcel.setId(i);
  useExcel.setType("自定义注解导出");
  useUserExcelList.add(useExcel);
  }
  return useUserExcelList;
  }

新增垂直合并excel

@Data
@EasySmart(perfectTable = true)
public class UseExcel {

@EasyExcelFiled(name = "原生注解-id")
@JSONField(name = "JSONField注解-id")
private Integer excelId;

@EasySmartField(name = "`current_time`")
@EasyExcelFiled(name = "原生注解-当前时间")
@JSONField(name = "JSONField注解-当前时间")
private LocalDateTime currentTime;

@EasySmartField(name = "`orderByDesc`")
@EasyExcelFiled(name = "原生注解-描述",fieldMerge = EasyExcelFiled.EasyExcelFieldMerge.VERTICAL)
@JSONField(name = "JSONField注解-描述")
private String desc;

@EasyExcelFiled(name = "原生注解-类型",fieldMerge = EasyExcelFiled.EasyExcelFieldMerge.VERTICAL)
@JSONField(name = "JSONField注解-类型")
private String type;

@EasyExcelFiled(name = "原生注解-是否删除")
@JSONField(name = "JSONField注解-是否删除")
private boolean isDelete;
}

新增Excel 导入支持时间格式

新增注解 @EasyFile 支持导出字符串、文件到mvc框架二进制流文件
支持对象中含有对象
支持对象中含有集合导出自动合并集合