我正在使用 docx4j 来操作 docx。我想做的是为所有表中的每个图像制作缓冲图像。我有 org.docx4j.wml.Drawing 的实例，有没有办法从中制作缓冲图像？
源代码大多是从某个地方下载的。
仅相关部分：
for (Object o : children ) {
System.out.println(" " + o.getClass().getName() );
if ( o instanceof javax.xml.bind.JAXBElement) {
System.out.println(" " + ((JAXBElement)o).getName() );
System.out.println(" " + ((JAXBElement)o).getDeclaredType().getName());
// TODO - unmarshall directly to Text.
if ( ((JAXBElement)o).getDeclaredType().getName().equals("org.docx4j.wml.Text") ) {
org.docx4j.wml.Text t = (org.docx4j.wml.Text)((JAXBElement)o).getValue();
System.out.println(" " + t.getValue() );
} else if ( ((JAXBElement)o).getDeclaredType().getName().equals("org.docx4j.wml.Drawing") ) {
org.docx4j.wml.Drawing d = (org.docx4j.wml.Drawing)((JAXBElement)o).getValue();
describeDrawing(d);
}
这将基本上通过表格中的单元格并确定它是文本还是图片
我想从图片中制作缓冲图像。
完整的源代码：
import java.util.List;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import org.docx4j.dml.picture.Pic;
import org.docx4j.dml.wordprocessingDrawing.Anchor;
import org.docx4j.dml.wordprocessingDrawing.Inline;
import org.docx4j.openpackaging.io.SaveToZipFile;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.openpackaging.parts.WordprocessingML.MainDocumentPart;
import org.docx4j.wml.Body;
public class Test {
public static JAXBContext context = org.docx4j.jaxb.Context.jc;
/**
* @param args
*/
private static WordprocessingMLPackage wordMLPackage;
public static void main(String[] args) throws Exception {
//String inputfilepath = "/home/dev/workspace/docx4j/sample-docs/jpeg.docx";
String inputfilepath = "C:\\Users\\Blizzard\\Desktop\\VSE\\15.docx";
boolean save = false;
String outputfilepath = "C:\\Users\\Blizzard\\Desktop\\VSE\\112.docx";
// Open a document from the file system
// 1. Load the Package
wordMLPackage = WordprocessingMLPackage.load(new java.io.File(inputfilepath));
// 2. Fetch the document part
MainDocumentPart documentPart = wordMLPackage.getMainDocumentPart();
// Display its contents
System.out.println( "\n\n OUTPUT " );
System.out.println( "====== \n\n " );
org.docx4j.wml.Document wmlDocumentEl = (org.docx4j.wml.Document)documentPart.getJaxbElement();
Body body = wmlDocumentEl.getBody();
List <Object> bodyChildren = body.getEGBlockLevelElts();
walkJAXBElements(bodyChildren);
// Save it
if (save) {
SaveToZipFile saver = new SaveToZipFile(wordMLPackage);
saver.save(outputfilepath);
}
}
static void walkJAXBElements(List <Object> bodyChildren){
for (Object o : bodyChildren ) {
if ( o instanceof javax.xml.bind.JAXBElement) {
System.out.println( o.getClass().getName() );
System.out.println( ((JAXBElement)o).getName() );
System.out.println( ((JAXBElement)o).getDeclaredType().getName() + "\n\n");
if ( ((JAXBElement)o).getDeclaredType().getName().equals("org.docx4j.wml.Tbl") ) {
org.docx4j.wml.Tbl tbl = (org.docx4j.wml.Tbl)((JAXBElement)o).getValue();
describeTable(tbl);
}
} else if (o instanceof org.docx4j.wml.P) {
System.out.println( "Paragraph object: ");
if (((org.docx4j.wml.P)o).getPPr() != null
&& ((org.docx4j.wml.P)o).getPPr().getRPr() != null
&& ((org.docx4j.wml.P)o).getPPr().getRPr().getB() !=null) {
System.out.println( "For a ParaRPr bold!");
}
walkList( ((org.docx4j.wml.P)o).getParagraphContent());
}
}
}
static void walkList(List children){
for (Object o : children ) {
System.out.println(" " + o.getClass().getName() );
if ( o instanceof javax.xml.bind.JAXBElement) {
System.out.println(" " + ((JAXBElement)o).getName() );
System.out.println(" " + ((JAXBElement)o).getDeclaredType().getName());
// TODO - unmarshall directly to Text.
if ( ((JAXBElement)o).getDeclaredType().getName().equals("org.docx4j.wml.Text") ) {
org.docx4j.wml.Text t = (org.docx4j.wml.Text)((JAXBElement)o).getValue();
System.out.println(" " + t.getValue() );
} else if ( ((JAXBElement)o).getDeclaredType().getName().equals("org.docx4j.wml.Drawing") ) {
org.docx4j.wml.Drawing d = (org.docx4j.wml.Drawing)((JAXBElement)o).getValue();
String relation = describeDrawing(d);
}
} else if (o instanceof org.w3c.dom.Node) {
System.out.println(" IGNORED " + ((org.w3c.dom.Node)o).getNodeName() );
} else if ( o instanceof org.docx4j.wml.R) {
org.docx4j.wml.R run = (org.docx4j.wml.R)o;
if (run.getRPr()!=null) {
System.out.println(" " + "Properties...");
if (run.getRPr().getB()!=null) {
System.out.println(" " + "B not null ");
System.out.println(" " + "--> " + run.getRPr().getB().isVal() );
} else {
System.out.println(" " + "B null.");
}
}
walkList(run.getRunContent());
} else {
System.out.println(" IGNORED " + o.getClass().getName() );
}
// else if ( o instanceof org.docx4j.jaxb.document.Text) {
// org.docx4j.jaxb.document.Text t = (org.docx4j.jaxb.document.Text)o;
// System.out.println(" " + t.getValue() );
// }
}
}
static void describeTable( org.docx4j.wml.Tbl tbl ) {
// What does a table look like?
boolean suppressDeclaration = false;
boolean prettyprint = true;
System.out.println( org.docx4j.XmlUtils.marshaltoString(tbl, suppressDeclaration, prettyprint) );
// Could get the TblPr if we wanted them
org.docx4j.wml.TblPr tblPr = tbl.getTblPr();
// Could get the TblGrid if we wanted it
org.docx4j.wml.TblGrid tblGrid = tbl.getTblGrid();
// But here, let's look at the table contents
for (Object o : tbl.getEGContentRowContent() ) {
if (o instanceof org.docx4j.wml.Tr) {
org.docx4j.wml.Tr tr = (org.docx4j.wml.Tr)o;
for (Object o2 : tr.getEGContentCellContent() ) {
System.out.println(" " + o2.getClass().getName() );
if ( o2 instanceof javax.xml.bind.JAXBElement) {
if ( ((JAXBElement)o2).getDeclaredType().getName().equals("org.docx4j.wml.Tc") ) {
org.docx4j.wml.Tc tc = (org.docx4j.wml.Tc)((JAXBElement)o2).getValue();
// Look at the paragraphs in the tc
walkJAXBElements( tc.getEGBlockLevelElts() );
}
else {
// What is it, if it isn't a Tc?
System.out.println(" " + ((JAXBElement)o).getName() );
System.out.println(" " + ((JAXBElement)o).getDeclaredType().getName());
}
} else {
System.out.println("A " + o.getClass().getName() );
}
}
} else {
System.out.println("C " + o.getClass().getName() );
}
}
}
static String describeDrawing( org.docx4j.wml.Drawing d ) {
System.out.println(" describeDrawing " );
String vrat = null;
if ( d.getAnchorOrInline().get(0) instanceof Anchor ) {
System.out.println(" ENCOUNTERED w:drawing/wp:anchor " );
// That's all for now...
} else if ( d.getAnchorOrInline().get(0) instanceof Inline ) {
// Extract w:drawing/wp:inline/a:graphic/a:graphicData/pic:pic/pic:blipFill/a:blip/@r:embed
Inline inline = (Inline )d.getAnchorOrInline().get(0);
Pic pic = inline.getGraphic().getGraphicData().getPic();
//pic.
vrat = pic.getNvPicPr().getCNvPr().getName();
System.out.println( "image name: " + vrat);
//bordel(inline);
} else {
System.out.println(" Didn't get Inline :( How to handle " + d.getAnchorOrInline().get(0).getClass().getName() );
}
return vrat;
}
}
我尝试添加一些方法，但我变得非常绝望：
private static void bordel(org.docx4j.wml.Drawing d){
MainDocumentPart documentPart = wordMLPackage.getMainDocumentPart();
RelationshipsPart relsPart = documentPart.getRelationshipsPart();
Relationships rels = relsPart.getRelationships();
List<Relationship> relsList = rels.getRelationship();
for (Relationship r : relsList) {
JAXBElement el = printInfo(relsPart.getPart(r));
if (el != null) {
if ( el.getDeclaredType().getName().equals("org.docx4j.wml.Drawing") ) {
org.docx4j.wml.Drawing c = (org.docx4j.wml.Drawing) el.getValue();
if (c.equals(d)){
System.out.println( "I found part");
}
}
}
}
}
在单元格中的每个图像上调用此方法并尝试找到我相信我可以转换为缓冲图像的部分
但是将 Part 转换为 JAXBElement 的下一个方法总是返回 null
public static JAXBElement printInfo(Part p) {
JAXBElement el = null;
if (p instanceof JaxbXmlPart) {
Object o = ((JaxbXmlPart)p).getJaxbElement();
if (o instanceof javax.xml.bind.JAXBElement) {
//sb.append(" containing JaxbElement:" + XmlUtils.JAXBElementDebug((JAXBElement)o) );
el= (JAXBElement) o;
} else {
//sb.append(" containing JaxbElement:" + o.getClass().getName() );
}
}
return el;
}