jxl的Jar包下载地址:百度网盘
import java.io.File;
import java.io.IOException;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.WritableCellFeatures;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
/**
*
* 2014年12月30日 下午7:16:14
* @author sunfeilong1993
* 简介:利用jxl实现简单的从excel文件中读取数据和那数据写入到excel文件中
*
*/
public class ExcelInputAndOutput {
public static void main(String[] args) {
writeToFile();
readFromFile();
}
//readFromFile
public static void readFromFile(){
File file = new File("d:/test.xls");
StringBuffer sb = new StringBuffer();
try {
Workbook book = Workbook.getWorkbook(file);
try{
Sheet sheet = book.getSheet(0);
for(int i = 0 ; i < 10 ; i++){
for(int j = 0 ; j < 10 ; j++){
//第一个参数代表列,第二个参数代表行。(默认起始值都为0)
sb.append(sheet.getCell(j, i).getContents()+"\t");
}
sb.append("\n");
}
System.out.println(sb);
}finally{
if(book != null){
book.close();
}
}
} catch (BiffException e) {
System.err.println(e+"");
} catch (IOException e) {
System.err.println(e+"文件读取错误");
}
}//end readFromFile
//witeToFile
public static void writeToFile(){
File file = new File("d:/test.xls");
try {
WritableWorkbook book = Workbook.createWorkbook(file);
//创建一个工作区。(默认的excel文件有三个sheet,在excel的左下角可以看到sheet1/sheet2/sheet3)
WritableSheet sheet = book.createSheet("第一页", 0);
//在工作区上面添加内容
try {
for(int i = 0; i < 10 ; i ++ ){
for(int j = 0 ; j < 10 ; j++){
Label newLabel;
if(0 == i){
//第一个参数代表列,第二个参数代表行(默认起始值都为0),第三个参数是要在单元格里面填写的内容发
newLabel = new Label(j,i,String.valueOf(j));
}else if(0 == j){
newLabel = new Label(j,i,String.valueOf(i));
}else{
newLabel = new Label(j,i,String.valueOf(i*j));
}
//在单元格上面添加注释
WritableCellFeatures cellFeatures = new WritableCellFeatures();
cellFeatures.setComment("这里是"+i+"*"+j+"的值");
newLabel.setCellFeatures(cellFeatures);
sheet.addCell(newLabel);
}
}
} catch (RowsExceededException e) {
System.err.println(e+"行或列参数错误!");
} catch (WriteException e) {
System.err.println(e+"写入失败");
}finally{
if(book != null){
book.write();
try {
book.close();
} catch (WriteException e) {
System.err.println(e+"文件关闭失败!");
}
}
}
} catch (IOException e) {
System.err.println(e+"创建文件失败!");
}
}
}