用JAVA上的Google App Engine生成带有图片的PDF

我试图在GAE上托管的项目中生成PDF文件。用JAVA上的Google App Engine生成带有图片的PDF

现在，我使用iText，它可以很好地创建文本PDF。

我真的需要在我的pdf上添加图片。当我试图用我的iText捕捉一些Execption谈论AWT和谷歌的白名单：

Uncaught exception from servlet 
java.lang.NoClassDefFoundError: java.awt.color.ICC_Profile is a restricted class. Please see the Google App Engine developer's guide for more details. 
    at com.google.apphosting.runtime.security.shared.stub.java.awt.color.ICC_Profile.<clinit>(ICC_Profile.java) 
    at com.lowagie.text.pdf.codec.PngImage.readPng(Unknown Source) 
    at com.lowagie.text.pdf.codec.PngImage.getImage(Unknown Source) 
    at com.lowagie.text.pdf.codec.PngImage.getImage(Unknown Source) 
    at com.lowagie.text.pdf.codec.PngImage.getImage(Unknown Source) 
    at com.lowagie.text.Image.getInstance(Unknown Source) 
    at com.dooapp.jwsPlateforme.services.licence.PdfPrinterImpl.print(PdfPrinterImpl.java:19) 
    at $PdfPrinter_128f4d9a1bb.print($PdfPrinter_128f4d9a1bb.java) 
    at com.dooapp.jwsPlateforme.servlet.PdfServlet.doGet(PdfServlet.java:36) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:129) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:97) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:238) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:135) 
    at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:250) 
    at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5838) 
    at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5836) 
    at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:24) 
    at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:398) 
    at com.google.net.rpc.impl.Server$2.run(Server.java:852) 
    at com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:56) 
    at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:576) 
    at com.google.net.rpc.impl.Server.startRpc(Server.java:807) 
    at com.google.net.rpc.impl.Server.processRequest(Server.java:369) 
    at com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:442) 
    at com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:319) 
    at com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:290) 
    at com.google.net.async.Connection.handleReadEvent(Connection.java:474) 
    at com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:831) 
    at com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:207) 
    at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:103) 
    at com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:251) 
    at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run(JavaRuntime.java:413) 
    at java.lang.Thread.run(Unknown Source)

你知道，如果有，允许对PDF在GAE上添加图片库？

注：我尝试iText的-GAE但它得到了同样的异常

感谢的

来源

2010-06-03 Christophe

看看http://stackoverflow.com/questions/1765238/java-pdf-library-that-works-on-gae – 2010-06-09 13:42:53

我会建议你发动你的JVM在无头模式，但是，以及在GAE上，这是不感兴趣。

无论如何，由于iText有这些问题，似乎至少有一个项目 - 适当地命名为iText-gae - 试图应对这些问题。它甚至似乎修补版本可以是downloaded from the web。但要小心，使用它需要您自担风险！

来源

2010-06-04 13:56:21 Riduidel

感谢这个答案。事实上，我尝试了iText-gae。它似乎并没有工作:( – Christophe 2010-06-04 14:08:39

你可以更新你的问题与这个信息，并显着堆栈跟踪？谢谢 – Riduidel 2010-06-04 14:21:09

您需要使用iText中包含的图像库，例如，在此片段中，我将图像插入单元格中。

import com.lowagie.text.Image; 
    import com.lowagie.text.pdf.PdfPCell; 

    Image img = Image.getInstance("/YOUR IMAGE ROUTE/"); 
    PdfPCell uno = new PdfPCell(img, true);

我知道这个问题有年龄，但也许会帮助别人在未来。

来源

2016-12-21 15:50:21

用JAVA上的Google App Engine生成带有图片的PDF

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