实体类：

    @ExcelTable(tableName = "测试excel名称")
    @Data
    @AllArgsConstructor
    public class People {
    
        @ExcelField(sort=1,name="姓名")
        private String name;
    
        @ExcelField(sort=2,name="年龄")
        private Integer age;
    
        @ExcelField(sort=3,name="微信")
        private String wx;
    
        @ExcelField(sort=4,name="QQ")
        private String qq;
    
        @ExcelField(sort=5,name="手机号")
        private String phone;
    
        @ExcelField(sort=6,name="地址")
        private String address;
    }
    
    
    导出代码：
    
    List<People> list=new ArrayList<>();
    for(int i=0;i<20;i++){
        People people=new People("xxxx",24,"xxxx","xxxxxxxxxxx","xxxxxxxxxxx","浙江省杭州市余杭区xxxxxxxxx");
        list.add(people);
    }
    OutputStream outputStream=new FileOutputStream(new File("D://test//test.xls"));
    //导出
    ExcelUtils.export(list,outputStream);

         List<People> list=new ArrayList<>();
            for(int i=0;i<20;i++){
                People people=new People("xxxx",24,"xxxx","xxxxxxxxxxx","xxxxxxxxxxx","浙江省杭州市余杭区xxxxxxxxx");
                list.add(people);
            }
            OutputStream outputStream=new FileOutputStream(new File("D://data//test.xls"));
  
            Map<String,String> headMap=new LinkedHashMap<>();
    
            headMap.put("age","年龄");
            headMap.put("wx","微信");
            headMap.put("name","姓名");
            headMap.put("phone","手机号");
    
            ExcelUtils.export(list,headMap,outputStream);