从Servlet显示PDF的问题

Question

try {
    String text = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
    Document document = new Document();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PdfWriter.getInstance(document, baos);
    document.open();
    document.add(new Paragraph(text));
    document.close();

    response.setHeader("Expires", "0");
    response.setHeader("Cache-Control","must-revalidate, post-check=0, pre-check=0");
    response.setHeader("Pragma", "public");
    response.setContentType("application/pdf");
    response.setContentLength(baos.size());
    OutputStream os = response.getOutputStream();
    baos.writeTo(os);
    os.flush();
    os.close();
}
catch(DocumentException e) {
    throw new IOException(e.getMessage());
}

<object id="mypdfobject" type="application/pdf" style="background-color: orange;color: black">
</object>

java prettyprint-override">$.post("../paymailcontroller?uid="+uId,function(pdata){     
         var objectPDF = document.getElementById("mypdfobject");
         objectPDF.data=pdata;
    });

如何在任何浏览器中显示创建的pdf？

当前的输出是这样的，基本上是原始的PDF：

%PDF-1.4%2 0 obj<>流x+r 26 s 00 si 2 p 5 1 b 4>>>>/父3 0 r/mediabox[0 0 595 842]>>内dobj 1 0 obj<>内dobj 3 0 obj<>内dobj 5 0 obj<>内dobj 6 0 obj<>内dobj xref 0 7 000 000000000 65535 f 00000000333 00000 n 000000000015000 n%%EOF

Answer 1

您必须设置内容配置。有两种可能：

（1）在浏览器中显示PDF

response.setHeader("Content-Disposition", "inline; filename=\"" + filename + "\";");

（2）打开下载下载文档

response.setHeader("Content-Disposition", "attachment;filename=\"" + filename + "\";");

$("#" + this.divId).append('<object id="' + this.pdfObjectId + '" data="' + yourserver + path + file+'" type="application/pdf" width="768" height="1024"></object>');

response.setStatus(HttpServletResponse.SC_OK);
response.setHeader("pragma", "no-cache");
response.setContentType("application/pdf");