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先看一段简单的导出html过程中，修改html头部的例子：【jasperreport6.3.1】
HtmlExporter exporter = new HtmlExporter(); SimpleHtmlExporterConfiguration config=new SimpleHtmlExporterConfiguration(); String header= "<html>\n"+ "<head>\n"+ " <title></title>\n"+ " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"/>\n"+ " <link rel=\"stylesheet\" type=\"text/css\" href=\"css/jasper.css\" />\n"+ " <style type=\"text/css\">\n"+ " a {text-decoration: none}\n"+ " </style>\n"+ "</head>\n"+ "<body text=\"#000000\" link=\"#000000\" alink=\"#000000\" vlink=\"#000000\" bgcolor=\"gray\">\n"+ "<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\">\n"+ "<tr><td width=\"50%\"> </td><td align=\"center\">\n"; config.setHtmlHeader(header); config.setBetweenPagesHtml("");//设置每页之间没有空行 exporter.setConfiguration(config); exporter.setExporterInput(new SimpleExporterInput(jasperPrint)); exporter.setExporterOutput(new SimpleHtmlExporterOutput(pdfPath)); exporter.exportReport();
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原文：http://www.cnblogs.com/qingmaple/p/5955098.html