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將doc文件中的圖像和圖形導出到openoffice中的圖像

2011-02-16 89 views

回答

2

這裏是如何從MS Word/OpenOffice文檔中提取圖像的示例。它用C＃編寫，但將其轉換爲Java是微不足道的。

鏈接：http://blog-of-darius.blogspot.com/2011/03/extract-images-from-word-openoffice.html

更新時間： 我的代碼轉換爲Java

import com.sun.star.beans.PropertyValue; 
import com.sun.star.beans.XPropertySet; 
import com.sun.star.comp.helper.Bootstrap; 
import com.sun.star.comp.helper.BootstrapException; 
import com.sun.star.container.XNameAccess; 
import com.sun.star.frame.XComponentLoader; 
import com.sun.star.graphic.XGraphic; 
import com.sun.star.graphic.XGraphicProvider; 
import com.sun.star.io.IOException; 
import com.sun.star.lang.IllegalArgumentException; 
import com.sun.star.lang.XComponent; 
import com.sun.star.lang.XMultiComponentFactory; 
import com.sun.star.lang.XServiceInfo; 
import com.sun.star.text.XTextDocument; 
import com.sun.star.text.XTextGraphicObjectsSupplier; 
import com.sun.star.uno.Exception; 
import com.sun.star.uno.UnoRuntime; 
import com.sun.star.uno.XComponentContext; 
import com.sun.star.util.XCloseable; 

public class Program { 

    public static void exportGraphicObject(XGraphicProvider xGraphicProvider, XGraphic xGraphic, String fileName) throws Exception { 
     if (xGraphicProvider == null){ 
      throw new Exception("XGraphicProvider is null."); 
     } 

     if (xGraphic == null){ 
      throw new Exception("XGraphic is null."); 
     } 

     PropertyValue[] properties = new PropertyValue[2]; 
     properties[0] = new PropertyValue(); 
     properties[0].Name = "URL"; 
     properties[0].Value = fileName; 
     properties[1] = new PropertyValue(); 
     properties[1].Name = "MimeType"; 
     properties[1].Value = "image/" + fileName.trim().substring(fileName.length() - 3); 

     xGraphicProvider.storeGraphic(xGraphic, properties); 
    } 

    public static void exportAllEmbeddedGraphics(XGraphicProvider xGraphicProvider, XTextDocument xTextDocument, String outDir) throws Exception { 
     if (xGraphicProvider == null){ 
      throw new Exception("XGraphicProvider is null."); 
     } 

     if (xTextDocument == null){ 
      throw new Exception("XTextDocument is null."); 
     } 

     XTextGraphicObjectsSupplier xTextGraphicObjectsSupplier = (XTextGraphicObjectsSupplier) UnoRuntime.queryInterface(
       XTextGraphicObjectsSupplier.class, xTextDocument); 

     XNameAccess xNameAccess = xTextGraphicObjectsSupplier.getGraphicObjects(); 
     if (xNameAccess != null && xNameAccess.hasElements()) { 
      String[] names = xNameAccess.getElementNames(); 

      for (int i = 0; i < names.length; i++) { 
       Object oGraphics = xNameAccess.getByName(names[i]); 

       XServiceInfo xServiceInfo = (XServiceInfo)UnoRuntime.queryInterface(
         XServiceInfo.class, oGraphics); 
       if (xServiceInfo != null 
         && xServiceInfo.supportsService("com.sun.star.text.TextContent") 
         && xServiceInfo.supportsService("com.sun.star.text.TextGraphicObject")) { 

        XPropertySet xPropertySet = (XPropertySet)UnoRuntime.queryInterface(
          XPropertySet.class, oGraphics); 
        String url = (String) xPropertySet.getPropertyValue("GraphicURL"); 

        PropertyValue[] properties = new PropertyValue[1]; 
        properties[0] = new PropertyValue(); 
        properties[0].Name = "URL"; 
        properties[0].Value = url; 

        XGraphic xGraphic = xGraphicProvider.queryGraphic(properties); 
        if (xGraphic != null){ 
         //String fileName = UUID.randomUUID() + ".png"; 
         String fileName = names[i] + ".png"; 
         System.out.println("Export: " + names[i]); 
         System.out.println("Filename: " + outDir + fileName); 

         exportGraphicObject(xGraphicProvider, xGraphic, outDir + fileName); 

         xGraphic = null; 
        } 

        xServiceInfo = null; 
       } 

       oGraphics = null; 
      } 

      names = null; 
      xNameAccess = null; 
     } 

     if (xTextGraphicObjectsSupplier != null) 
      xTextGraphicObjectsSupplier = null; 
    } 

    public static void main(String[] args) throws Exception { 
     String fileName = "file:///C:/code/_other/java-OOo/test.odt"; 
     String outDir = "file:///C:/code/_other/java-OOo/out/"; 

     XComponentContext xContext = null; 
     XMultiComponentFactory xMultiComponentFactory = null; 
     Object oDesktop = null; 
     XComponentLoader xComponentLoader = null; 
     XGraphicProvider xGraphicProvider = null; 

     System.out.println("Starting OOo."); 
     try { 
      xContext = Bootstrap.bootstrap(); 
     } catch (BootstrapException e) { 
      System.out.println("Boostrap failed! Failed to start OpenOffice."); 
      return; 
     } 

     xMultiComponentFactory = (XMultiComponentFactory) xContext.getServiceManager(); 
     oDesktop = xMultiComponentFactory.createInstanceWithContext(
       "com.sun.star.frame.Desktop", xContext); 
     xComponentLoader = (XComponentLoader)UnoRuntime.queryInterface(
       com.sun.star.frame.XComponentLoader.class, oDesktop); 
     if (xComponentLoader == null) { 
      System.out.println("Failed to create XComponentLoader"); 
      return; 
     } 

     try { 
      Object oGraphicProvider = xMultiComponentFactory.createInstanceWithContext(
        "com.sun.star.graphic.GraphicProvider", xContext); 
      xGraphicProvider = (XGraphicProvider) UnoRuntime.queryInterface(
        XGraphicProvider.class, oGraphicProvider); 
     } catch (Exception e) { 
      System.out.println("Failed to create XGraphicProvider!"); 
      return; 
     } 

     PropertyValue[] properties = new PropertyValue[2]; 
     properties[0] = new PropertyValue(); 
     properties[0].Name = "Hidden"; 
     properties[0].Value = false; // put true to hide OpenOffice window 
     properties[1] = new PropertyValue(); 
     properties[1].Name = "CharacterSet"; 
     properties[1].Value = "Unicode (UTF-8)"; 

     XComponent document = null; 
     try { 
      document = xComponentLoader.loadComponentFromURL(fileName, "_blank", 0, properties); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } catch (IllegalArgumentException e) { 
      e.printStackTrace(); 
     } 

     XTextDocument xTextDocument = (XTextDocument) UnoRuntime.queryInterface(
       XTextDocument.class, document); 
     exportAllEmbeddedGraphics(xGraphicProvider, xTextDocument, outDir); 

     XCloseable xCloseable = (XCloseable)UnoRuntime.queryInterface(
       XCloseable.class, xContext); 
     if(xCloseable != null) 
     { 
      xCloseable.close(true); 
      xCloseable = null; 
     } 

     xGraphicProvider = null; 
     xComponentLoader = null; 
     oDesktop = null; 
     xMultiComponentFactory = null; 
     xContext = null; 

     try { 
      Runtime.getRuntime().exec("tskill soffice"); 
     } catch (java.io.IOException e) { 
      e.printStackTrace(); 
     } 

     System.out.println("Done."); 
    } 
}

來源

2011-03-08 08:54:31

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