JXL 读写excle

1)引入jxl.jar包

2)写接口

package testExcel;

public interface ExcelService {
public void write(int colum, int row, String content) throws Exception;
public String read(int colum, int row)throws Exception;
}
3)读写excle类

package testExcel;
import testExcel.ExcelService;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

public class ExcelUtils implements ExcelService{
private String path = "D://excel.xls";

public static void main(String[] args) throws Exception {
ExcelUtils excelUtils = new ExcelUtils();
String content = "Hello World";
excelUtils.write(2, 3, content);
String newContent = excelUtils.read(2, 3);
System.out.println(newContent);

}
public void write(int colum, int row, String content) throws Exception {
FileOutputStream fileOutputStream = new FileOutputStream(path);
WritableWorkbook writableWorkbook = Workbook
.createWorkbook(fileOutputStream);
WritableSheet writableSheet = writableWorkbook.createSheet("Excel", 0);
Label label = new Label(colum, row, content);
writableSheet.addCell(label);
writableWorkbook.write();
writableWorkbook.close();
fileOutputStream.close();
}
public String read(int colum, int row) throws Exception {
FileInputStream fileInputStream = new FileInputStream(path);
Workbook workbook = Workbook.getWorkbook(fileInputStream);
Sheet sheet = workbook.getSheet(0);
Cell cell = sheet.getCell(colum, row);
String content = cell.getContents();
workbook.close();
fileInputStream.close();
return content;
}
}