java 在Jframe里用jxl肿么把数据追加进excel里,不要覆盖原有数据

excel

要在JFrame中使用JXLS写入数据到已有的excel文档中，可以采取追加的方式，而不必覆盖原有数据。具体步骤如下：1. 导入jxl和jxl-impl两个包。2. 创建一个工作簿对象workbook，并创建一个工作表对象sheet。3. 通过调用worksheet对象的appendRow方法，在末尾追加一行数据。4. 将单元格中需要写入的数据赋值给相应的参数。5. 通过调用worksheet对象的write方法将数据写入到指定单元格。下面是一个示例代码片段：Javaimport org.apache.poi.ss.usermodel.Cell;import org.apache.poi.ss.usermodel.Row;import org.apache.poi.xssf.eventusermodel.XSSFReader;import org.apache.poi.xssf.eventusermodel.XSSFRecord;import org.apache.poi.xssf.eventusermodel.XSSFTodos;import org.apache.poi.xssf.eventusermodel.XSSFTodosEntry;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataFormat;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;import org.apache.poi.xssf.usermodel.XSSFCellStyle;import org.apache.poi.xssf.usermodel.XSSFDataValidationHelper;import org.apache.poi.xssf.usermodel.XSSFRow;public class MAIn {