java实现 easy excel导入

/**
	所需依赖
*/
		<!--    easy excel-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>easyexcel</artifactId>
            <version>2.1.1</version>
        </dependency>

/**
     * Description	简单导入excel工具类
     * @param path  导入excel表格路径
     * @param data  导入的数据
     * @param sheetName 表单名
     */
    public void writeExcel(String path,List<?> data,String sheetName){
        if(null !=path){
	        //构建easy excel
	        ExcelWriter excelWriter = EasyExcel.write(path, cnarea_2018.class).build();
	        //构建sheet构造器
	        WriteSheet Beijing = EasyExcel.writerSheet(sheetName).build();
	        //写入数据
	        excelWriter.write(data,Beijing);
	        excelWriter.finish();
		}
    }
@Test
    void t1() {
//        通过分页拿到数据
        RowBounds rowBounds = new RowBounds(0,2000);
        List<cnarea_2018> cnarea_2018s = areaDao.selectByRowBounds(area, rowBounds);
        //保存excel的本地地址
        String path="C:\\Users\\lucky\\Desktop\\"+System.currentTimeMillis()+".xls";
        //调用工具类
        easyExcelUtils.writeExcel(path,cnarea_2018s,"北京地区");
    }