【文件下载】Easyexcel快速上手

一、引入依赖

<!--        Easyexcel-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>easyexcel</artifactId>
            <version>2.1.3</version>
        </dependency>

        <!--        POI-->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>3.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>3.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml-schemas</artifactId>
            <version>3.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-scratchpad</artifactId>
            <version>3.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-excelant</artifactId>
            <version>3.17</version>
        </dependency>

二、实体类注解配置

@Data
public class User {
    @ExcelProperty("用户名")
    private String username;

    @ExcelProperty("密码")
    private String password;

    @ExcelProperty("性别")
    private String age;

    public User(String username, String password, String age) {
        this.username = username;
        this.password = password;
        this.age = age;
    }
}

三、业务代码

    @GetMapping("download")
    public void download(HttpServletResponse response) throws IOException {
        List<User> list = new ArrayList<>();
        list.add(new User("张三","aaa","男"));
        list.add(new User("李四","bbb","女"));
        list.add(new User("王五","ccc","男"));
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        response.setCharacterEncoding("utf-8");
        response.setHeader("Content-disposition", "attachment; filename=用户.xlsx");
        EasyExcel.write(response.getOutputStream(), User.class).sheet("用户").doWrite(list);
    }

四、接口访问(文件存放位置可自定义)

 五、查看文件