Question

我的要求是，在阅读完电子邮件后，我需要将其存档为PDF（目前，让我们考虑纯文本并从图像中排除嵌入的文本）。

以下是我从Talend-ESB生成的代码路由（我认为这是解释的关键）

当我执行此操作时，我明白了 java.lang.IllegalStateException: Cannot read while there is an open stream writer

        from(
            "imaps://imap.gmail.com:993" + "?username=" + context.username
                    + "&password=" + decryptedPassword_cMail_1
                    + "&contentType=text/plain" + "&" + "peek" + "=true"
                    + "&" + "handleFailedMessage" + "=true" + "&"
                    + "skipFailedMessage" + "=true" + "&"
                    + "mapMailMessage" + "=true")

    .routeId("WriteAsPDF_cMail_1")
            .process(new org.apache.camel.Processor() {
                public void process(org.apache.camel.Exchange exchange)
                        throws Exception {
                    Map<String, Object> map = new java.util.HashMap<String, Object>();

                    map = exchange.getIn().getHeaders();
                    for (String name : map.keySet()) {
                        String key = name.toString();
                        String value = map.get(name).toString();
                        System.out.println(key + " " + value);

                    }
                    String M_Body = exchange.getIn().getBody().toString();
                    org.apache.pdfbox.pdmodel.PDDocument document = new org.apache.pdfbox.pdmodel.PDDocument();

                    org.apache.pdfbox.pdmodel.PDPage page = new org.apache.pdfbox.pdmodel.PDPage();

                    document.addPage(page);
                    org.apache.pdfbox.pdmodel.font.PDFont pdfFont = org.apache.pdfbox.pdmodel.font.PDType1Font.HELVETICA_BOLD;
                    org.apache.pdfbox.pdmodel.PDPageContentStream contentStream = new org.apache.pdfbox.pdmodel.PDPageContentStream(
                            document, page);
                    contentStream.beginText();
                    contentStream.setFont(pdfFont, 12);
                    contentStream.moveTextPositionByAmount(100, 700);
                    contentStream.drawString(M_Body);
                    document.save("C:/Hari/poller/zipper/BlankPage.pdf");
                    contentStream.close();
                    document.close();
                }

            }).id("WriteAsPDF_cProcessor_1");
}

============================================

异常详情：

[警告]：org.apache.camel.component.mail.MailConsumer - Exchange失败，因此回滚邮件状态：Exchange [MailMessage @ 0xcdf6432] java.lang.IllegalStateException：有一个打开的流编写器时无法读取在org.apache.pdfbox.cos.COSStream.createRawInputStream（COSStream.java:129）在org.apache.pdfbox.pdfwriter.COSWriter.visitFromStream（COSWriter.java:1177）在org.apache.pdfbox.cos.COSStream.accept（COSStream.java:372） at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObject（COSWriter.java:561） at org.apache.pdfbox.pdfwriter.COSWriter.doWriteObjects（COSWriter.java:490） ... ..... .. .. [错误]：org.apache.camel.processor.DefaultErrorHandler - 交付失败（ExchangeId上的消息ID：ID-EINLW2ABC-60843-1468402879061-0-1：ID-EINLW2ABC-60843-1468402879061-0-2）。交付尝试后用尽：1捕获：java.lang.IllegalStateException：有开放流编写器时无法读取

我确实检查了类似的其他问题，但我找不到能帮我解决的问题。

使用驼峰存档电子邮件（Talend）

0 个答案: