我想要读取Excel文件，但是出现了问题。
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlObject
at ExcelReader.main(ExcelReader.java:32)
Caused by: java.lang.ClassNotFoundException: org.apache.xmlbeans.XmlObject
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 1 more
请帮助我。 首先打开.xlsx文件，然后给出第一个表格。 最后在控制台上打印excel文件的数据。 提示：我已经将poi-ooxml-3.9-20121203.jar添加到我的项目中。
import java.io.File;
import java.io.FileInputStream;
import javax.swing.text.html.HTMLDocument.Iterator;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import java.util.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/**
* @author mohammad hosein
*
*/
public class ExcelReader {
/**
* @param args
*/
public static void main(String[] args) {
try
{
FileInputStream file = new FileInputStream(new File("E:\\test.xlsx"));
//Get the workbook instance for XLS file
XSSFWorkbook workbook = new XSSFWorkbook (file);
//Get first sheet from the workbook
XSSFSheet sheet = workbook.getSheetAt(0);
//Get iterator to all the rows in current sheet
java.util.Iterator<Row> rowIterator = sheet.iterator();
while(rowIterator.hasNext())
{
Row row = rowIterator.next();
java.util.Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext())
{
Cell cell = cellIterator.next();
System.out.print(cell.getStringCellValue() + "\t");
}
System.out.println("");
}
}
catch(Exception e)
{
System.out.println("EROR!");
}
//Get iterator to all cells of current row
}
}
