Java读取Excel

首先引入阿帕奇的依赖

        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.1.2</version>
        </dependency>

读取excel文件，获取到每一行的集合

ExcelReader reader = ExcelUtil.getReader("demo.xls");
List<List<Object>> readAll = reader.read();