[file download] easyexcel quick start

One 、 Introduce dependencies

<!--        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>

Two 、 Entity class annotation configuration

@Data
public class User {
    @ExcelProperty(" user name ")
    private String username;

    @ExcelProperty(" password ")
    private String password;

    @ExcelProperty(" Gender ")
    private String age;

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

3、 ... and 、 Business code

    @GetMapping("download")
    public void download(HttpServletResponse response) throws IOException {
        List<User> list = new ArrayList<>();
        list.add(new User(" Zhang San ","aaa"," male "));
        list.add(new User(" Li Si ","bbb"," Woman "));
        list.add(new User(" Wang Wu ","ccc"," male "));
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        response.setCharacterEncoding("utf-8");
        response.setHeader("Content-disposition", "attachment; filename= user .xlsx");
        EasyExcel.write(response.getOutputStream(), User.class).sheet(" user ").doWrite(list);
    }

Four 、 Interface access ( The file storage location can be customized )

  5、 ... and 、 see file