java PdfTextExtractor.getTextFromPage(来源未知)

Question

您好，当迭代器到达第 11 页时，我在解析 pdf 时遇到问题，抛出异常。

有什么想法吗？谢谢

这是我的代码:

import java.io.*;
import java.nio.charset.Charset;
import java.util.regex.*;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.hyphenation.TernaryTree.Iterator;
import com.lowagie.text.pdf.parser.PdfTextExtractor;

public class PdfParser {
    /** 
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int index = 0;
        try {
            PdfReader readerN = new PdfReader("C:\\Documents and Settings\\stefan.stere\\hibernateWorkspace\\PdfParser\\src\\monitor3.pdf");
            OutputStreamWriter out = new OutputStreamWriter( new FileOutputStream(new File("C:\\Documents and Settings\\stefan.stere\\hibernateWorkspace\\PdfParser\\src\\pdf2txt.rtf")),"Cp1252");

            PdfTextExtractor parse = new PdfTextExtractor(readerN);
            int nrPages = readerN.getNumberOfPages();

            for (int i=1; i<nrPages ; i++) {
                index++;
                String page = parse.getTextFromPage(i);
                if(page != null){
                    page = page.replace(new StringBuffer("null"), new StringBuffer("??"));
                    page = page.replaceAll("Comercial.", "Comerciala");
                    page = page.replaceAll("ACT ADI..IONAL", "ACT ADITIONAL");
                    page = page.replaceAll("HOT.R..E", "HOTARARE");
                    page = page.replaceAll("HOT.R..EA", "HOTARAREA");
                    page = page.replaceAll("HOT.R..I", "HOTARARI");
                    page = page.replaceAll("..cheiat.", "incheiata");
                    page = page.replaceAll("ANUN..", "ANUNT");
                    out.write(page);
                    System.out.println(page);
                }
            }
            out.close();
            readerN.close();
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
            System.out.println(index);
        }
    }
}

和异常堆栈:

java.lang.ArrayIndexOutOfBoundsException: Invalid index: 62
at com.lowagie.text.pdf.CMapAwareDocumentFont.decodeSingleCID(Unknown Source)
at com.lowagie.text.pdf.CMapAwareDocumentFont.decode(Unknown Source)
at com.lowagie.text.pdf.parser.PdfContentStreamProcessor.decode(Unknown Source)
at com.lowagie.text.pdf.parser.PdfContentStreamProcessor.displayPdfString(Unknown Source)
at com.lowagie.text.pdf.parser.PdfContentStreamProcessor$ShowTextArray.invoke(Unknown Source)
at com.lowagie.text.pdf.parser.PdfContentStreamProcessor.invokeOperator(Unknown Source)
at com.lowagie.text.pdf.parser.PdfContentStreamProcessor.processContent(Unknown Source)
at com.lowagie.text.pdf.parser.PdfTextExtractor.getTextFromPage(Unknown Source)
at PdfParser.main(PdfParser.java:32)

Answer 1

没有答案，但似乎很多人都有同样的问题，SO 上还有另一个相关问题。如果您在谷歌上使用 ArrayIndexOutOfBoundsException 和 getTextFromPage 进行搜索，您会看到同样的问题，但没有解决方案...

顺便说一句，您的循环将在处理最后一页之前停止，因为第一页的索引为 1...