1、引入依赖

<dependency>
    <groupId>com.pig4cloud.excel</groupId>
    <artifactId>excel-spring-boot-starter</artifactId>
    <version>1.2.7</version>
</dependency>

2、导出

@ResponseExcel(name = "测试列表")
@PostMapping("/export")
public List<TestVO> export() {
    List<TestVO> list = new ArrayList<>();
    TestVO vo = new TestVO();
    vo.setId("1");
    vo.setName("杰克马");
    list.add(vo);
    TestVO vo1 = new TestVO();
    vo1.setId("2");
    vo1.setName("乔峰");
    list.add(vo1);
    return list;
}

@Data
public class TestVO {

    @ExcelProperty(index = 0, value = "编号")
    @ColumnWidth(15)
    private String id;

    @ExcelProperty(index = 1, value = "名称")
    @ColumnWidth(20)
    private String name;
}

导出效果

3、导入

@PostMapping("/import")
public void importTest(@RequestExcel List<ImportVO> list) {
    log.info("导入数据 = {}", JSONObject.toJSONString(list));
}

@Data
public class ImportVO {

    @ExcelProperty(index = 0, value = "编号")
    private String id;

    @ExcelProperty(index = 1, value = "名称")
    private String name;
}

创建模板文件

用postman测试调用，其中key必须为file

导入效果