使用java读取excel（包括2003和2007）

读取excel2003需要使用apache提供的jxl.jar这个jar包：

InputStream is = new FileInputStream(fileDir);
jxl.Workbook rwb = Workbook.getWorkbook(is);

Sheet rs = rwb.getSheet(0);
int rsColumns = rs.getColumns();
int rsRows = rs.getRows();

if (i < rsRows) {
for (int j = 0; j < rsColumns; j++) {
rs.getCell(j, i).getContents();
}
}

读取2007需要使用apache得poi包：

import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

XSSFWorkbook xwb=new XSSFWorkbook(fileDir);
XSSFSheet sheet=xwb.getSheetAt(0);
XSSFRow row;
String cell=null;
int m=0;
int max=0;
for(int i=sheet.getFirstRowNum();i<sheet.getPhysicalNumberOfRows();i++)
{
m=sheet.getRow(i).getPhysicalNumberOfCells();
if (m>=max) {
max=m;
}
else {

}
}

for(int i=sheet.getFirstRowNum();i<sheet.getPhysicalNumberOfRows();i++)
{
Element root_2 = new Element("columns");
root.appendChild(root_2);
row=sheet.getRow(i);
for(int j=0;j<max+1;j++)
{
try {
cell=row.getCell(j).toString();

} catch (Exception e) {
cell=null;
}
Element root_3 = new Element("column");
root_3.appendChild(cell);
root_2.appendChild(root_3);

}
}
Document document = new Document(root);
return document.toXML();

JExcelAPI读写excel文件的例子。支持excel2003文件格式 转载

http://blog.csdn.net/wonder4/archive/2006/07/04/874541.aspx

import java.io.*;
import jxl.*;
import jxl.write.*;
import jxl.format.*;
import java.util.*;
import java.awt.Color;

public class TestExcel {
public static void writeExcel(File f) throws Exception {
jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(f);
jxl.write.WritableSheet ws = wwb.createSheet("TestSheet1", 0);
jxl.write.Label labelC = new jxl.write.Label(0, 0, "我爱中国");
ws.addCell(labelC);
jxl.write.WritableFont wfc = new jxl.write.WritableFont(
WritableFont.ARIAL, 20, WritableFont.BOLD, false,
UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.GREEN);
jxl.write.WritableCellFormat wcfFC = new jxl.write.WritableCellFormat(
wfc);
wcfFC.setBackground(jxl.format.Colour.RED);
labelC = new jxl.write.Label(6, 0, "中国爱我a", wcfFC);
ws.addCell(labelC);
// 写入Exel工作表
wwb.write();
// 关闭Excel工作薄对象
wwb.close();
}
public static void readExcel(File os) throws Exception {
Workbook wb = Workbook.getWorkbook(os);
Sheet s = wb.getSheet("Sheet1");
Cell c = s.getCell(0,0);
System.out.println(c.getContents());
}

// 最好写一个这样的main方法来测试一下你的这个class是否写好了。
public static void main(String[] args) throws Exception {
File f = new File("c://kk1.xls");
// f.createNewFile();
// writeExcel(f);
readExcel(f);
}
}

List list = new ArrayList();
try {
Workbook rwb = null;
Cell cell = null;

// 创建输入流
InputStream stream = new FileInputStream(excelFileName);

// 获取Excel文件对象
rwb = Workbook.getWorkbook(stream);

// 获取文件的指定工作表 默认的第一个
Sheet sheet = rwb.getSheet(0);

// 行数(表头的目录不需要，从1开始)
for (int i = 1; i < sheet.getRows(); i++) {

// 创建一个数组 用来存储每一列的值
String[] str = new String[sheet.getColumns()];

// 列数
for (int j = 0; j < sheet.getColumns(); j++) {

// 获取第i行，第j列的值
cell = sheet.getCell(j, i);
str[j] = cell.getContents();

}
// 把刚获取的列存入list
list.add(str);
}

// 返回值集合
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (BiffException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}