Question

This PDFBOX Example当我从主方法＆amp;运行java应用程序然后它成功保存pdf文档。但是如果在Tomcat服务器上运行servlet的doGet方法时使用相同的代码，那么它将保存pdf文件。你能帮我解决原因吗？我是否需要添加一些外部库以支持Tomcat服务器，请帮助..

注意：

我调试了doGet方法，它的调用没有任何问题

异常Tomcat 6，PDFBox 1.87，我拥有的所有PDFbox依赖包含在类路径中

/* this is the servlet method which is saving pdf file, but the same if run from Main then it saves the "hello world.pdf"*/ 
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException {
      try { 
          PDDocument  document = new PDDocument();
             PDPage page = new PDPage();
             document.addPage( page ); 
             // Create a new font object selecting one of the PDF base fonts
             PDFont font = PDType1Font.HELVETICA_BOLD; 
             // Start a new content stream which will "hold" the to be created content
             PDPageContentStream contentStream = new PDPageContentStream(document, page); 
             // Define a text content stream using the selected font, moving the cursor and drawing the text "Hello World"
             contentStream.beginText();
             contentStream.setFont( font, 12 );
             contentStream.moveTextPositionByAmount( 100, 700 );
             contentStream.drawString( "Hello World1" );
             contentStream.endText(); 
             // Make sure that the content stream is closed:
             contentStream.close(); 
             // Save the results and ensure that the document is properly closed:
             document.save( "Hello World.pdf");

             document.close();

             response.setContentType("text/html"); 
          PrintWriter out = response.getWriter();   
              out.println("<iframe height=\"100%\"   width=\"100%\" src=\"http://eurecaproject.eu/files/4613/9886/3802/report3.pdf\" ></iframe>");


    } catch (Exception e) {
        // TODO Auto-generated catch block

        System.out.println(e);
    }   

}

Answer 1

如果你更新到最新版本的PDFBox（2.0.0-SNAPSHOT），一切都应该没问题。

Answer 2

以下是示例代码：抱歉，我有点忙，所以我现在无法测试您的代码，但我相信这会对您有所帮助。只需在致电doGet()或doPost()时添加几行，只需检查一下我使用的内容即可。我花了很多时间才找到这个解决方案。它肯定会奏效。如果它不起作用，请告诉我。

我希望您已经下载了pdfbox jar，因此您可以默认导入类。

//you can use servlet to create pdf 

@SuppressWarnings("javadoc")

public class Billing extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {

    private static final long serialVersionUID = 1L;

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        performTask(request, response);
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,
            IOException {
        performTask(request, response);
    }

    private void performTask(HttpServletRequest request, HttpServletResponse response) throws ServletException,
            IOException {



            //Create pdf
            PDDocument document = new PDDocument();

            //Create Page
            PDPage page = new PDPage();

            //Adding the page
            document.addPage(page);


           //Loading the page
           File file = new File("D:/akash/my_doc.pdf");
           //writing text
           contentStream.beginText();
           contentStream.newLineAtOffset(295, 757);
           contentStream.setFont(PDType1Font.HELVETICA_BOLD, 12);
           contentStream.showText("CHIMERA TRANSPLANT RESEARCH FOUNDATION");
           contentStream.endText();

           //Saving the document
           document.save("D:/akash/my_doc.pdf");


           //Closing the document
            document.close();
   }  
}

PDFBox：在tomcat上运行时无法保存pdf

2 个答案: