引入poi的相关依赖
```java
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
</dependency>
public static void read (String fileName) throws IOException {
//读取文件地址
FileInputStream fileInputStream = new FileInputStream(new File("C:\\Users\\x\\Desktop\\"+fileName+".xlsx"));
XSSFWorkbook excel = new XSSFWorkbook(fileInputStream);
//读取文件中的哪一个表
XSSFSheet sheet = excel.getSheet("gril");
//获取某一行的内容 第一行 rownum=0
XSSFRow row1 = sheet.getRow(1);
//获取某一行中某一个的某一格的内容
String name = row1.getCell(0).getStringCellValue();
String age = row1.getCell(1).getStringCellValue();
System.out.println(name+"--------------"+age);
fileInputStream.close();
}
```
用POI读
想怎么读都行
你可以自己控制底层的读写