对于我的使用,我使用飞碟库创建了一个PDF文件。这是一个遗留HTML,所以我使用HTMLCleaner库清理了XHTML。
在此之后,我将XML序列化为字符串,然后将其传递给fly-saucer的iText模块进行渲染,然后创建PDF。
此PDF我将其放在OutputStream
中。提交响应后,我会收到一个对话框,要求保存或打开它。但是它不会保存为PDF文件。我必须右键单击并在Adobe或任何PDF阅读器中打开它。
如何在PDF阅读器中显示它。并将文件保存为.pdf文件。什么是一个有效和用户友好的方式来处理这个问题?一如既往的帮助将不胜感激!
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringBufferInputStream;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.htmlcleaner.CleanerProperties;
import org.htmlcleaner.DomSerializer;
import org.htmlcleaner.HtmlCleaner;
import org.htmlcleaner.PrettyXmlSerializer;
import org.htmlcleaner.TagNode;
import org.htmlcleaner.XmlSerializer;
import org.w3c.dom.Document;
import org.xhtmlrenderer.pdf.ITextRenderer;
import org.xhtmlrenderer.resource.XMLResource;
public class MyPDF extends HttpServlet {
public MyPDF() {
super();
}
public void destroy() {
super.destroy();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/pdf");
String html = request.getParameter("source");
try
{
HtmlCleaner cleaner = new HtmlCleaner();
CleanerProperties props = cleaner.getProperties();
TagNode node = cleaner.clean(html);
//String content = "<" + node.getName() + ">" + cleaner.getInnerHtml(node) + "</" + node.getName() + ">";
//System.out.println("content " +content);
OutputStream os = response.getOutputStream();
System.out.println("encoding " +response.getCharacterEncoding());
final XmlSerializer xmlSerializer = new PrettyXmlSerializer(props);
final String html1 = xmlSerializer.getAsString(node);
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(html1);
renderer.layout();
renderer.createPDF(os);
os.close();
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
public void init() throws ServletException {
}
}
答案 0 :(得分:1)
您的MIME类型对于PDF不正确。它应该是application / pdf。
更改
response.setContentType("text/pdf");
到
response.setContentType("application/pdf");
有关PDF MIME类型的RFC,请参阅http://tools.ietf.org/html/rfc3778。
编辑:完全忽略了“另存为.pdf”问题。 您还需要添加以下内容:
response.setHeader("content-disposition", "attachment; filename=yourFileName.pdf");
告诉浏览器默认文件名应该是什么。