EasyExcel implements custom export of specified columns

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custom export 

 

 

Code 

1. Introduce dependencies

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>easyexcel</artifactId>
    <version>3.0.1</version>
</dependency>

2. Entity class

@Data
public class User {

    @ExcelProperty(value = "姓名")
    private String name;

    @ExcelProperty(value = "性别")
    private Integer six;

    @ExcelProperty(value = "年龄")
    private Integer age;

    @ExcelProperty(value = "地址")
    private String address;

}

3. Tools

public class ExcelUtils {

    private static String fileName = "导出" + System.currentTimeMillis() + ".xlsx";

    public void write(Class head, List list) {
        EasyExcel.write(fileName, head).sheet("模板").doWrite(list);
    }

    /**
     * 动态列表导出
     */
    public void write(Class head, Set<String> columns, List list) {
        EasyExcel.write(fileName, head).includeColumnFiledNames(columns).sheet("模板").doWrite(list);
    }
}

4. Test

public class ExcelTest {

    public static void main(String[] args) {
        List<User> users = new ArrayList<>();
        for (int i = 0; i < 5; i++) {
            User user = new User();
            user.setAddress("地址" + i);
            user.setAge(i);
            user.setName("姓名" + i);
            user.setSix(1);
            users.add(user);
        }
        // 传参：指定字段
        String column = "name,age";
        if (StringUtils.isNotEmpty(column)) {
            Set<String> columns = new HashSet<>(Arrays.asList(column.split(",")));
            new ExcelHandle().write(User.class, columns, users);
        } else {
            new ExcelHandle().write(User.class, users);
        }
    }
}