Java/iText/Flying Saucer：將包含svg標籤的HTML轉換爲pdf

Question

我試圖從HTML生成Java中的pdf文件。 HTML代碼包含一個由Google Charts API生成的svg標籤，用於顯示柱狀圖。

我試着用飛碟R8做到這一點，像這樣：

StringBuffer sb = new StringBuffer(); 
    sb.append("<div id='chartArea'><svg width='830' height='400'><defs id='defs'><clipPath id='_ABSTRACT_RENDERER_ID_0'><rect x='45' y='77' width='560' height='247'/></clipPath></defs><rect x='0' y='0' width='830' height='400' stroke='none' stroke-width='0' fill='#ffffff'/><g><rect x='45' y='77' width='560' height='247' stroke='none' stroke-width='0' fill-opacity='0' fill='#ffffff'/><g clip-path='url(#_ABSTRACT_RENDERER_ID_0)'><g><rect x='45' y='323' width='560' height='1' stroke='none' stroke-width='0' fill='#cccccc'/><rect x='45' y='262' width='560' height='1' stroke='none' stroke-width='0' fill='#cccccc'/><rect x='45' y='200' width='560' height='1' stroke='none' stroke-width='0' fill='#cccccc'/><rect x='45' y='139' width='560' height='1' stroke='none' stroke-width='0' fill='#cccccc'/><rect x='45' y='77' width='560' height='1' stroke='none' stroke-width='0' fill='#cccccc'/></g><g><rect x='60' y='323.5' width='49' height='0' stroke='none' stroke-width='0' fill='#757575'/><rect x='140' y='323.5' width='49' height='0' stroke='none' stroke-width='0' fill='#757575'/><rect x='220' y='323.5' width='49' height='0' stroke='none' stroke-width='0' fill='#757575'/><rect x='300' y='323.5' width='49' height='0' stroke='none' stroke-width='0' fill='#757575'/><rect x='380' y='323.5' width='49' height='0' stroke='none' stroke-width='0' fill='#757575'/><rect x='460' y='323.5' width='49' height='0' stroke='none' stroke-width='0' fill='#757575'/><rect x='540' y='111' width='49' height='212' stroke='none' stroke-width='0' fill='#757575'/></g><g><rect x='45' y='323' width='560' height='1' stroke='none' stroke-width='0' fill='#333333'/></g></g><g/><g><g><text text-anchor='middle' x='85.42857142857143' y='343.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-04-26</text></g><g><text text-anchor='middle' x='165.28571428571428' y='360.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-04-27</text></g><g><text text-anchor='middle' x='245.14285714285717' y='343.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-04-28</text></g><g><text text-anchor='middle' x='325' y='360.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-04-29</text></g><g><text text-anchor='middle' x='404.8571428571429' y='343.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-04-30</text></g><g><text text-anchor='middle' x='484.7142857142857' y='360.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-05-01</text></g><g><text text-anchor='middle' x='564.5714285714286' y='343.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#222222'>2012-05-02</text></g><g><text text-anchor='end' x='39' y='328.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#444444'>0</text></g><g><text text-anchor='end' x='39' y='266.55' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#444444'>6</text></g><g><text text-anchor='end' x='39' y='205.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#444444'>12</text></g><g><text text-anchor='end' x='39' y='143.55' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#444444'>18</text></g><g><text text-anchor='end' x='39' y='82.05' font-family='Arial' font-size='13' stroke='none' stroke-width='0' fill='#444444'>24</text></g></g></g><g><g><text text-anchor='middle' x='17.05' y='200.5' font-family='Arial' font-size='13' font-style='italic' transform='rotate(-90 17.05 200.5)' stroke='none' stroke-width='0' fill='#222222'>Amount (USD)</text></g></g><g/></svg></div>"); 

    Document document = XMLResource.load(new ByteArrayInputStream(sb.toString().getBytes())).getDocument(); 
    ITextRenderer renderer = new ITextRenderer(); 
    renderer.setDocument(document,"test"); 
    String outputFile = "test.pdf"; 
    OutputStream os = new FileOutputStream(outputFile); 
    renderer.layout(); 
    renderer.createPDF(os); 
    os.close(); 

結果是生成的PDF包含圖表的軸值，但不是圖表本身;即不包括圖表圖像。

任何想法或建議將非常有幫助。一個月它已經 -

感謝， 肖恩

Answer 1

希望你已經找到了解決您的問題。

但是，如果您仍然在尋找，並且如果您對要渲染爲PDF的頁面有足夠的控制權，則可以嘗試使用蠟染（http://xmlgraphics.apache.org/batik/）。我已經繼承了一個較老的grails應用程序，該應用程序從一個報告中創建一個PDF，該報告在作爲網頁查看時具有SVG。代碼首先從SVG元素創建一個PNG，然後使用iText渲染器創建PDF。

從蠟染項目頁面，有引用PDF生成，但我找不到一個例子，將採取一個DOM包括一些SVG和一些「正常」的標記和呈現爲PDF。