我正在尝试使用poi apache库读取excel文件。我尝试了不同类型的代码,但我的所有代码仍然遇到同样的错误。我不知道为什么会出现这个错误。
您可以从以下链接下载POI apache库: https://poi.apache.org/download.html
这是我读取excel文件的代码:
import java.io.File;
import java.io.FileInputStream;
import java.util.Iterator;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/**
*
* @author Pacer
*/
public class ReadExcelDemo
{
public static void main(String[] args)
{
try
{
System.out.println("Working Directory = " + System.getProperty("user.dir"));
FileInputStream file = new FileInputStream(new File("book.xlsx"));
//Create Workbook instance holding reference to .xlsx file
XSSFWorkbook workbook = new XSSFWorkbook(file);
//Get first/desired sheet from the workbook
XSSFSheet sheet = workbook.getSheetAt(0);
//Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext())
{
Row row = rowIterator.next();
//For each row, iterate through all the columns
Iterator<Cell> cellIterator = row.cellIterator();
while (cellIterator.hasNext())
{
Cell cell = cellIterator.next();
//Check the cell type and format accordingly
switch (cell.getCellType())
{
case Cell.CELL_TYPE_NUMERIC:
System.out.print(cell.getNumericCellValue() + "t");
break;
case Cell.CELL_TYPE_STRING:
System.out.print(cell.getStringCellValue() + "t");
break;
}
}
System.out.println("");
}
file.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
这是我得到的错误:
Working Directory = E:\NetBeansProjects\Project24\CoverageCodetool
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException
at coveragecodetool.ReadExcelDemo.main(ReadExcelDemo.java:30)
Caused by: java.lang.ClassNotFoundException: org.apache.xmlbeans.XmlException
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more
Java Result: 1
请帮忙!
答案 0 :(得分:0)
你的类路径中缺少xmlbeans
apache库。
将xmlbeans添加到类路径中,一切都会正常工作。
图书馆本身可以下载here。
解析NoClassDefFoundException
的一般算法如下: