使用yahp.jar将html从网站转换为pdf的问题

Question

此代码一直给我一个错误，指出urlForBase必须是有效的URI。 包含此错误的行以粗体和草书显示。谁知道问题是什么？我很肯定网址是一个实际正确的网址。

        CYaHPConverter converter = new CYaHPConverter();
        FileOutputStream out = new FileOutputStream("/Users/steveweyns/Desktop/summary.pdf");
        Map properties = new HashMap();
        List headerFooterList = new ArrayList();

        properties.put(IHtmlToPdfTransformer.PDF_RENDERER_CLASS,
                IHtmlToPdfTransformer.FLYINGSAUCER_PDF_RENDERER);
        try {
            //properties.put(IHtmlToPdfTransformer.FOP_TTF_FONT_PATH, fontPath);
            ***converter.convertToPdf("http://biz.yahoo.com/e/" + correctSummaryPass + "/" + ticker + "10-k.html",***
                    IHtmlToPdfTransformer.A4P,
                    headerFooterList,
                    "",
                    out,
                    properties);
        } catch (IHtmlToPdfTransformer.CConvertException ex) {
            Logger.getLogger(AnnualReportSummary.class.getName()).log(Level.SEVERE, null, ex);
        }
        try {
            out.flush();
        } catch (IOException ex) {
            Logger.getLogger(AnnualReportSummary.class.getName()).log(Level.SEVERE, null, ex);
        }
        try {
            out.close();
        } catch (IOException ex) {
            Logger.getLogger(AnnualReportSummary.class.getName()).log(Level.SEVERE, null, ex);
        }
    } catch (FileNotFoundException ex) {
        Logger.getLogger(AnnualReportSummary.class.getName()).log(Level.SEVERE, null, ex);
    }

Answer 1

*converter.convertToPdf("http://biz.yahoo.com/e/" + correctSummaryPass + "/" + ticker + "10-k.html",***
                    IHtmlToPdfTransformer.A4P,
                    headerFooterList,
                    "",
                    out,
                    properties);

更改为：

*converter.convertToPdf("http://biz.yahoo.com/e/" + correctSummaryPass + "/" + ticker + "10-k.html",***
                    IHtmlToPdfTransformer.A4P,
                    headerFooterList,
                    null,
                    out,
                    properties);