java 分批次导入excel
时间: 2023-11-10 08:05:02 浏览: 86
可以使用 Apache POI 库来读取 Excel 文件,并且可以通过设置读取的起始行和结束行来实现分批次导入。以下是一个简单的示例代码:
```java
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
public class ExcelImporter {
public static void main(String[] args) throws IOException {
String filePath = "path/to/excel/file.xlsx";
int batchSize = 100; // 每批次导入的行数
int startRow = 1; // 起始行(第一行为0)
int endRow = startRow + batchSize - 1; // 结束行
FileInputStream inputStream = new FileInputStream(new File(filePath));
Workbook workbook = WorkbookFactory.create(inputStream);
Sheet sheet = workbook.getSheetAt(0); // 获取第一个工作表
while (startRow <= sheet.getLastRowNum()) {
for (int i = startRow; i <= endRow && i <= sheet.getLastRowNum(); i++) {
Row row = sheet.getRow(i);
if (row == null) {
continue;
}
for (int j = 0; j < row.getLastCellNum(); j++) {
Cell cell = row.getCell(j);
if (cell == null) {
continue;
}
System.out.print(cell.toString() + "\t");
}
System.out.println();
}
startRow += batchSize;
endRow += batchSize;
}
workbook.close();
inputStream.close();
}
}
```