我正在開發一個使用Apache POI讀取excel xlsb文件的

Java應用程序,但是在讀取它時遇到異常,我的代碼如下：

import java.io.IOException;

import java.io.InputStream;

import org.apache.poi.xssf.eventusermodel.XSSFReader;

import org.apache.poi.xssf.model.SharedStringsTable;

import org.apache.poi.xssf.usermodel.XSSFRichTextString;

import org.apache.poi.openxml4j.exceptions.InvalidFormatException;

import org.apache.poi.openxml4j.exceptions.OpenXML4JException;

import org.apache.poi.openxml4j.opc.Package;

import org.xml.sax.Attributes;

import org.xml.sax.ContentHandler;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;

import org.xml.sax.XMLReader;

import org.xml.sax.helpers.DefaultHandler;

import org.xml.sax.helpers.XMLReaderFactory;

import java.util.Iterator;

public class Prueba {

public static void main (String [] args){

String direccion = "C:/Documents and Settings/RSalasL/My Documents/New Folder/masstigeoct12.xlsb";

Package pkg;

try {

pkg = Package.open(direccion);

XSSFReader r = new XSSFReader(pkg);

SharedStringsTable sst = r.getSharedStringsTable();

XMLReader parser = fetchSheetParser(sst);

Iterator sheets = r.getSheetsData();

while(sheets.hasNext()) {

System.out.println("Processing new sheet:\n");

InputStream sheet = sheets.next();

InputSource sheetSource = new InputSource(sheet);

parser.parse(sheetSource);

sheet.close();

System.out.println("");

}

} catch (InvalidFormatException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (OpenXML4JException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (SAXException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void processAllSheets(String filename) throws Exception {

Package pkg = Package.open(filename);

XSSFReader r = new XSSFReader( pkg );

SharedStringsTable sst = r.getSharedStringsTable();

XMLReader parser = fetchSheetParser(sst);

Iterator sheets = r.getSheetsData();

while(sheets.hasNext()) {

System.out.println("Processing new sheet:\n");

InputStream sheet = sheets.next();

InputSource sheetSource = new InputSource(sheet);

parser.parse(sheetSource);

sheet.close();

System.out.println("");

}

}

public static XMLReader fetchSheetParser(SharedStringsTable sst) throws SAXException {

XMLReader parser =

XMLReaderFactory.createXMLReader(

"org.apache.xerces.parsers.SAXParser"

);

ContentHandler handler = new SheetHandler(sst);

parser.setContentHandler(handler);

return parser;

}

private static class SheetHandler extends DefaultHandler {

private SharedStringsTable sst;

private String lastContents;

private boolean nextIsString;

private SheetHandler(SharedStringsTable sst) {

this.sst = sst;

}

public void startElement(String uri, String localName, String name,

Attributes attributes) throws SAXException {

// c => cell

if(name.equals("c")) {

// Print the cell reference

System.out.print(attributes.getValue("r") + " - ");

// Figure out if the value is an index in the SST

String cellType = attributes.getValue("t");

if(cellType != null && cellType.equals("s")) {

nextIsString = true;

} else {

nextIsString = false;

}

}

// Clear contents cache

lastContents = "";

}

public void endElement(String uri, String localName, String name)

throws SAXException {

// Process the last contents as required.

// Do now, as characters() may be called more than once

if(nextIsString) {

int idx = Integer.parseInt(lastContents);

lastContents = new XSSFRichTextString(sst.getEntryAt(idx)).toString();

nextIsString = false;

}

// v => contents of a cell

// Output after we've seen the string contents

if(name.equals("v")) {

System.out.println(lastContents);

}

}

public void characters(char[] ch, int start, int length)

throws SAXException {

lastContents += new String(ch, start, length);

}

}

}

例外是這樣的：

java.io.CharConversionException: Characters larger than 4 bytes are not supported: byte 0x83 implies a length of more than 4 bytes

at org.apache.xmlbeans.impl.piccolo.xml.UTF8XMLDecoder.decode(UTF8XMLDecoder.java:162)

at org.apache.xmlbeans.impl.piccolo.xml.XMLStreamReader$FastStreamDecoder.read(XMLStreamReader.java:762)

at org.apache.xmlbeans.impl.piccolo.xml.XMLStreamReader.read(XMLStreamReader.java:162)

at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.yy_refill(PiccoloLexer.java:3474)

at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.yylex(PiccoloLexer.java:3958)

at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.yylex(Piccolo.java:1290)

at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.yyparse(Piccolo.java:1400)

at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.parse(Piccolo.java:714)

at org.apache.xmlbeans.impl.store.Locale$SaxLoader.load(Locale.java:3439)

at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:1270)

at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:1257)

at org.apache.xmlbeans.impl.schema.SchemaTypeLoaderBase.parse(SchemaTypeLoaderBase.java:345)

at org.openxmlformats.schemas.spreadsheetml.x2006.main.WorkbookDocument$Factory.parse(Unknown Source)

at org.apache.poi.xssf.eventusermodel.XSSFReader$SheetIterator.(XSSFReader.java:207)

at org.apache.poi.xssf.eventusermodel.XSSFReader$SheetIterator.(XSSFReader.java:166)

at org.apache.poi.xssf.eventusermodel.XSSFReader.getSheetsData(XSSFReader.java:160)

at EDManager.Prueba.main(Prueba.java:36)

該文件有2張,一張有329行和3列,另一張有566行和3列,我只是想讀取文件以查找值是否在第二張表中.

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