EasyExcel 解析多个Excel 存入数据库

引入依赖

<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>easyexcel</artifactId>
            <version>1.1.2-beta5</version>
        </dependency>

EasyExcel解析Excel有同步和异步两种方式,这里只说异步

Model实体

public class ExcelMode extends BaseRowModel {

    /**
     * 第一列的数据
     */
    @ExcelProperty(index = 0)
    private BigDecimal column1;
    /**
     * 第二列的数据
     */
    @ExcelProperty(index = 1)
    private BigDecimal column2;

    public BigDecimal getColumn1() {
        return column1;
    }

    public void setColumn1(BigDecimal column1) {
        this.column1 = column1;
    }

    public BigDecimal getColumn2() {
        return column2;
    }

    public void setColumn2(BigDecimal column2) {
        this.column2 = column2;
    }

    @Override
    public String toString() {
        return "ExcelMode{" +
                "column1=" + column1 +  +
                ", column2=" + column2 +  +
                };
    }

监听器

public class ExcelModelListener extends AnalysisEventListener<Object> {
    // 业务执行类
    private SaveService saveService;
    // 数据载体
    ArrayList<Object> data = new ArrayList<>();

    public ExcelModelListener(SaveService saveService) {
        this.saveService = saveService;
    }
    // 每解析一行调用一次
    @Override
    public void invoke(Object o, AnalysisContext analysisContext) {
        System.out.println(o.toString());
        data.add(o);
    }
    //解析完毕后调用
    @Override   
    public void doAfterAllAnalysed(AnalysisContext analysisContext) {
        System.out.println("解析完成");
        // 执行具体添加逻辑
        saveService.save(data);
    }

}

抽出执行添加逻辑的接口

public interface SaveService {
	// 只有一个添加方法
    public boolean save(Object obj);
}

模拟不同业务添加 业务一

/**
 * 实现添加业务接口
 */
public class UserSaveService implements SaveService {


    @Override
    public boolean save(Object o) {
        //  添加逻辑
        System.out.println("one");
        return true;
    }
}

业务二

public class TeacherSaveService implements SaveService {

    @Override
    public boolean save(Object obj) {
		// 业务二 添加逻辑
        System.out.println("TWO");
        return false;
    }
}

测试

@RequestMapping(value = "/demo")
@ResponseBody
public String demo(MultipartFile file){
    try {
        InputStream inputStream = file.getInputStream();
        // ExcelMode --> EasyExcel扫描的Model对象
        Sheet sheet = new Sheet(1,1, ExcelMode.class);
        // 执行解析操作,在我们自己的监听类构造中传入具体的执行添加的service
        EasyExcelFactory.readBySax(inputStream,sheet,new ExcelModelListener(new UserSaveService()));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e){
        e.printStackTrace();
    }

    return "success";
}