我已经使用 XLS，但今天我正在尝试新的 - xlsx。对于 XLS，我只需要一个库，而 XLSX（四个库）。我也得到了整个包错误。为什么会这样？
主要的：
public class Start {
public static void main(String[] args) {
ReaderXls read = new ReaderXls();
List<List<String>> listAsu = new ArrayList<List<String>>(read.ReaderXls("Sprav_oborudovania",0, 10, 30));
System.out.println(listAsu); }
}
编码：
package workhere;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class ReaderXls {
public List<List<String>> ReaderXls(String sfilename,int firstColumn, int columnsCount, int rowsCount){
int lastColumn=firstColumn+columnsCount;
List<List<String>> rowsContent = new ArrayList<List<String>>();
try ( FileInputStream fileInputStream = new FileInputStream("C:\\Users\\student3\\"+sfilename+".xlsx");)
{//Get the workbook instance for XLS file
XSSFWorkbook workBook = new XSSFWorkbook(fileInputStream);
XSSFSheet sheet = workBook.getSheetAt(0); //Get first sheet from the workbook
toNewLine:
for (int lineId=0;lineId<rowsCount;lineId++) {
List<String> columnsContent = new ArrayList<String>();
Row row = sheet.getRow(lineId);
try {
for (int columnId=firstColumn;columnId<lastColumn;columnId++) {
Cell cell = row.getCell(columnId);
cell.setCellType(Cell.CELL_TYPE_STRING);
if (cell.getStringCellValue().equals("")) {}
else columnsContent.add(cell.getStringCellValue());
}
}
catch (NullPointerException e) {
e.printStackTrace();
}
if (columnsContent.isEmpty()) {
continue toNewLine;
}
rowsContent.add(columnsContent);
}
FileOutputStream out =
new FileOutputStream("C:\\Users\\student3\\"+sfilename+".xls");
workBook.write(out);
out.close();
}
catch (FileNotFoundException e) {
e.printStackTrace(); }
catch (IOException e) {
e.printStackTrace();
}
return rowsContent; }
}
和大量的错误：
Exception in thread "main" org.apache.poi.POIXMLException: java.lang.reflect.InvocationTargetException
at org.apache.poi.xssf.usermodel.XSSFFactory.createDocumentPart(XSSFFactory.java:62)
at org.apache.poi.POIXMLDocumentPart.read(POIXMLDocumentPart.java:403)
at org.apache.poi.POIXMLDocument.load(POIXMLDocument.java:155)
at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:207)
at workhere.ReaderXls.ReaderXls(ReaderXls.java:26)
at workhere.Start.main(Start.java:16)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.poi.xssf.usermodel.XSSFFactory.createDocumentPart(XSSFFactory.java:60)
... 10 more
Caused by: java.lang.ExceptionInInitializerError
at sun.misc.Unsafe.ensureClassInitialized(Native Method)
at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:43)
at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:140)
at java.lang.reflect.Field.acquireFieldAccessor(Field.java:1057)
at java.lang.reflect.Field.getFieldAccessor(Field.java:1038)
at java.lang.reflect.Field.get(Field.java:379)
at org.apache.xmlbeans.XmlBeans.typeSystemForClassLoader(XmlBeans.java:770)
at org.openxmlformats.schemas.drawingml.x2006.main.ThemeDocument.<clinit>(Unknown Source)
at org.openxmlformats.schemas.drawingml.x2006.main.ThemeDocument$Factory.parse(Unknown Source)
at org.apache.poi.xssf.model.ThemesTable.<init>(ThemesTable.java:44)
... 15 more
Caused by: java.lang.RuntimeException: Could not instantiate SchemaTypeSystemImpl (java.lang.reflect.InvocationTargetException): is the version of xbean.jar correct?
at schemaorg_apache_xmlbeans.system.sE130CAA0A01A7CDE5A2B4FEB8B311707.TypeSystemHolder.loadTypeSystem(Unknown Source)
at schemaorg_apache_xmlbeans.system.sE130CAA0A01A7CDE5A2B4FEB8B311707.TypeSystemHolder.<clinit>(Unknown Source)
... 25 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
... 27 more
Caused by: org.apache.xmlbeans.SchemaTypeLoaderException: XML-BEANS compiled schema: Incompatible minor version - expecting up to 23, got 24 (schemaorg_apache_xmlbeans.system.sE130CAA0A01A7CDE5A2B4FEB8B311707.index) - code 3
at org.apache.xmlbeans.impl.schema.SchemaTypeSystemImpl$XsbReader.<init>(SchemaTypeSystemImpl.java:1522)
at org.apache.xmlbeans.impl.schema.SchemaTypeSystemImpl.initFromHeader(SchemaTypeSystemImpl.java:260)
at org.apache.xmlbeans.impl.schema.SchemaTypeSystemImpl.<init>(SchemaTypeSystemImpl.java:183)
... 31 more\