Java使用APACHE POI在PowerPoint中创建图表
我们如何使用apache poi在Java中的ppt中创建图表。我们使用哪种POI API。下面是我用来创建文本框的代码
XSLFSlide slide = pptx.createSlide();XSLFTextShape textShape = slide.createTextBox();
textShape.setText(data);
幻灯片对象不包含任何用于创建图表的api。
有什么解决办法吗？
提前致谢
回答：
到现在为止，XSLFChartShapePowerPoint幻灯片中还没有可用的东西apache poi。
不过，当然，如果一个人知道所述的内部结构*.pptxZIP归档文件和XML在其中，则有可能使用从头创建这个apache poi
OPCPackage类和低电平CT*从类org.openxmlformats.schemas.drawingml.x2006.*和org.openxmlformats.schemas.presentationml.x2006.*。
下面的代码将执行此操作，并创建一个包含饼图和条形图的幻灯片。
这只是一个草稿，仅显示了该方法。
import java.io.*;import org.apache.poi.*;
import org.apache.poi.xslf.usermodel.*;
import org.apache.poi.util.*;
import org.apache.poi.openxml4j.opc.*;
import static org.apache.poi.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
import org.apache.xmlbeans.*;
import org.openxmlformats.schemas.drawingml.x2006.chart.*;
import org.openxmlformats.schemas.drawingml.x2006.main.*;
import org.openxmlformats.schemas.presentationml.x2006.main.*;
import javax.xml.namespace.QName;
import java.util.regex.Pattern;
import java.awt.geom.Rectangle2D;
import java.awt.Rectangle;
public class CreatePPTXCharts {
public CreatePPTXCharts() throws Exception {
XMLSlideShow slideShow = new XMLSlideShow();
XSLFSlide slide = slideShow.createSlide();
MyXSLFChartShape myXSLFChartShape = createXSLFChart(slide);
myXSLFChartShape.setAnchor(new Rectangle(50,100,300,300));
drawPieChart(myXSLFChartShape);
myXSLFChartShape = createXSLFChart(slide);
myXSLFChartShape.setAnchor(new Rectangle(370,100,300,300));
drawBarChart(myXSLFChartShape);
FileOutputStream out = new FileOutputStream("CreatePPTXCharts.pptx");
slideShow.write(out);
out.close();
}
//a method for creating the chart XML document /ppt/charts/chart*.xml in the *.pptx ZIP archive
//and creating a MyXSLFChartShape as slide shape
public MyXSLFChartShape createXSLFChart(XSLFSlide slide) throws Exception {
OPCPackage oPCPackage = slide.getSlideShow().getPackage();
int chartCount = oPCPackage.getPartsByName(Pattern.compile("/ppt/charts/chart.*")).size() + 1;
PackagePartName partName = PackagingURIHelper.createPartName("/ppt/charts/chart" + chartCount + ".xml");
PackagePart part = oPCPackage.createPart(partName, "application/vnd.openxmlformats-officedocument.drawingml.chart+xml");
MyXSLFChart myXSLFChart = new MyXSLFChart(part);
MyXSLFChartShape myXSLFChartShape = new MyXSLFChartShape(slide, myXSLFChart);
return myXSLFChartShape;
}
public void drawPieChart(MyXSLFChartShape myXSLFChartShape) {
CTChartSpace chartSpace = myXSLFChartShape.getMyXSLFChart().getChartSpace();
CTPieChart cTPieChart = chartSpace.addNewChart().addNewPlotArea().addNewPieChart();
cTPieChart.addNewVaryColors().setVal(true);
CTPieSer cTPieSer = cTPieChart.addNewSer();
cTPieSer.addNewIdx().setVal(0);
CTStrRef cTStrRef = cTPieSer.addNewTx().addNewStrRef();
cTStrRef.setF("Label 0");
cTStrRef.addNewStrCache().addNewPtCount().setVal(1);
CTStrVal cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(0);
cTStrVal.setV("Val");
cTStrRef = cTPieSer.addNewCat().addNewStrRef();
cTStrRef.setF("Categories");
cTStrRef.addNewStrCache().addNewPtCount().setVal(3);
for (int r = 1; r < 4; r++) {
cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(r-1);
cTStrVal.setV("Cat" + r);
}
CTNumRef cTNumRef = cTPieSer.addNewVal().addNewNumRef();
cTNumRef.setF("0");
cTNumRef.addNewNumCache().addNewPtCount().setVal(3);
for (int r = 1; r < 4; r++) {
CTNumVal cTNumVal = cTNumRef.getNumCache().addNewPt();
cTNumVal.setIdx(r-1);
cTNumVal.setV("" + (10*r));
}
}
public void drawBarChart(MyXSLFChartShape myXSLFChartShape) {
CTChartSpace chartSpace = myXSLFChartShape.getMyXSLFChart().getChartSpace();
CTChart cTChart = chartSpace.addNewChart();
CTPlotArea cTPlotArea = cTChart.addNewPlotArea();
CTBarChart cTBarChart = cTPlotArea.addNewBarChart();
cTBarChart.addNewVaryColors().setVal(true);
cTBarChart.addNewBarDir().setVal(STBarDir.COL);
for (int r = 1; r < 5; r++) {
CTBarSer cTBarSer = cTBarChart.addNewSer();
CTStrRef cTStrRef = cTBarSer.addNewTx().addNewStrRef();
cTStrRef.setF("Label " + r);
cTStrRef.addNewStrCache().addNewPtCount().setVal(1);
CTStrVal cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(0);
cTStrVal.setV("Val" + r);
cTBarSer.addNewIdx().setVal(r-1);
cTStrRef = cTBarSer.addNewCat().addNewStrRef();
cTStrRef.setF("Categories");
cTStrRef.addNewStrCache().addNewPtCount().setVal(3);
for (int c = 1; c < 4; c++) {
cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(c-1);
cTStrVal.setV("Cat" + c);
}
CTNumRef cTNumRef = cTBarSer.addNewVal().addNewNumRef();
cTNumRef.setF("" + r);
cTNumRef.addNewNumCache().addNewPtCount().setVal(3);
for (int c = 1; c < 4; c++) {
CTNumVal cTNumVal = cTNumRef.getNumCache().addNewPt();
cTNumVal.setIdx(c-1);
cTNumVal.setV("" + ((10+r)*c));
}
}
//telling the BarChart that it has axes and giving them Ids
cTBarChart.addNewAxId().setVal(123456);
cTBarChart.addNewAxId().setVal(123457);
//cat axis
CTCatAx cTCatAx = cTPlotArea.addNewCatAx();
cTCatAx.addNewAxId().setVal(123456); //id of the cat axis
CTScaling cTScaling = cTCatAx.addNewScaling();
cTScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
cTCatAx.addNewDelete().setVal(false);
cTCatAx.addNewAxPos().setVal(STAxPos.B);
cTCatAx.addNewCrossAx().setVal(123457); //id of the val axis
cTCatAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//val axis
CTValAx cTValAx = cTPlotArea.addNewValAx();
cTValAx.addNewAxId().setVal(123457); //id of the val axis
cTScaling = cTValAx.addNewScaling();
cTScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
cTValAx.addNewDelete().setVal(false);
cTValAx.addNewAxPos().setVal(STAxPos.L);
cTValAx.addNewCrossAx().setVal(123456); //id of the cat axis
cTValAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//legend
CTLegend cTLegend = cTChart.addNewLegend();
cTLegend.addNewLegendPos().setVal(STLegendPos.B);
cTLegend.addNewOverlay().setVal(false);
}
public static void main(String[] args) throws Exception {
CreatePPTXCharts createPPTXCharts = new CreatePPTXCharts();
}
//________________________________________________________________________
//a class for providing a MyXSLFChartShape
private class MyXSLFChartShape {
private CTGraphicalObjectFrame _graphicalObjectFrame;
private XSLFSlide slide;
private MyXSLFChart myXSLFChart;
MyXSLFChartShape(XSLFSlide slide, MyXSLFChart myXSLFChart) throws Exception {
String rId = "rId" + (slide.getRelationParts().size()+1);
slide.addRelation(rId, XSLFRelation.CHART, myXSLFChart);
long cNvPrId = 1;
String cNvPrName = "MyChart";
int cNvPrNameCount = 1;
for (CTGraphicalObjectFrame currGraphicalObjectFrame : slide.getXmlObject().getCSld().getSpTree().getGraphicFrameList()) {
if (currGraphicalObjectFrame.getNvGraphicFramePr() != null) {
if (currGraphicalObjectFrame.getNvGraphicFramePr().getCNvPr() != null) {
cNvPrId++;
if (currGraphicalObjectFrame.getNvGraphicFramePr().getCNvPr().getName().startsWith(cNvPrName)) {
cNvPrNameCount++;
}
}
}
}
CTGraphicalObjectFrame graphicalObjectFrame = slide.getXmlObject().getCSld().getSpTree().addNewGraphicFrame();
CTGraphicalObjectFrameNonVisual cTGraphicalObjectFrameNonVisual = graphicalObjectFrame.addNewNvGraphicFramePr();
cTGraphicalObjectFrameNonVisual.addNewCNvGraphicFramePr();
cTGraphicalObjectFrameNonVisual.addNewNvPr();
CTNonVisualDrawingProps cTNonVisualDrawingProps = cTGraphicalObjectFrameNonVisual.addNewCNvPr();
cTNonVisualDrawingProps.setId(cNvPrId);
cTNonVisualDrawingProps.setName("MyChart" + cNvPrNameCount);
CTGraphicalObject graphicalObject = graphicalObjectFrame.addNewGraphic();
CTGraphicalObjectData graphicalObjectData = CTGraphicalObjectData.Factory.parse(
"<c:chart xmlns:c=\"http://schemas.openxmlformats.org/drawingml/2006/chart\" "
+"xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\" "
+"r:id=\"" + rId + "\"/>"
);
graphicalObjectData.setUri("http://schemas.openxmlformats.org/drawingml/2006/chart");
graphicalObject.setGraphicData(graphicalObjectData);
_graphicalObjectFrame = graphicalObjectFrame;
this.slide = slide;
this.myXSLFChart = myXSLFChart;
this.setAnchor(new Rectangle());
}
private void setAnchor(Rectangle2D anchor) {
CTTransform2D xfrm = (_graphicalObjectFrame.getXfrm() != null) ? _graphicalObjectFrame.getXfrm() : _graphicalObjectFrame.addNewXfrm();
CTPoint2D off = xfrm.isSetOff() ? xfrm.getOff() : xfrm.addNewOff();
long x = Units.toEMU(anchor.getX());
long y = Units.toEMU(anchor.getY());
off.setX(x);
off.setY(y);
CTPositiveSize2D ext = xfrm.isSetExt() ? xfrm.getExt() : xfrm.addNewExt();
long cx = Units.toEMU(anchor.getWidth());
long cy = Units.toEMU(anchor.getHeight());
ext.setCx(cx);
ext.setCy(cy);
}
private MyXSLFChart getMyXSLFChart() {
return myXSLFChart;
}
}
//a wrapper class for the ChartSpaceDocument /ppt/charts/chart*.xml in the *.pptx ZIP archive
private class MyXSLFChart extends POIXMLDocumentPart {
private CTChartSpace chartSpace;
private MyXSLFChart(PackagePart part) throws Exception {
super(part);
chartSpace = ChartSpaceDocument.Factory.newInstance().addNewChartSpace();
}
private CTChartSpace getChartSpace() {
return chartSpace;
}
@Override
protected void commit() throws IOException {
XmlOptions xmlOptions = new XmlOptions(DEFAULT_XML_OPTIONS);
xmlOptions.setSaveSyntheticDocumentElement(new QName(CTChartSpace.type.getName().getNamespaceURI(), "chartSpace", "c"));
PackagePart part = getPackagePart();
OutputStream out = part.getOutputStream();
chartSpace.save(out, xmlOptions);
out.close();
}
}
}
产生与XSSFWorkbook数据表相同但具有的代码。
import java.io.*;import org.apache.poi.*;
import org.apache.poi.xslf.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;
import org.apache.poi.util.*;
import org.apache.poi.openxml4j.opc.*;
import static org.apache.poi.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
import org.apache.xmlbeans.*;
import org.openxmlformats.schemas.drawingml.x2006.chart.*;
import org.openxmlformats.schemas.drawingml.x2006.main.*;
import org.openxmlformats.schemas.presentationml.x2006.main.*;
import javax.xml.namespace.QName;
import java.util.HashMap;
import java.util.Map;
import java.util.List;
import java.util.regex.Pattern;
import java.awt.geom.Rectangle2D;
import java.awt.Rectangle;
public class CreatePPTXChartsXSSFWb {
public CreatePPTXChartsXSSFWb() throws Exception {
XMLSlideShow slideShow = new XMLSlideShow();
XSLFSlide slide = slideShow.createSlide();
MyXSLFChartShape myXSLFChartShape = createXSLFChart(slide);
myXSLFChartShape.setAnchor(new Rectangle(50,100,300,300));
drawPieChart(myXSLFChartShape);
myXSLFChartShape = createXSLFChart(slide);
myXSLFChartShape.setAnchor(new Rectangle(370,100,300,300));
drawBarChart(myXSLFChartShape);
FileOutputStream out = new FileOutputStream("CreatePPTXChartsXSSFWb.pptx");
slideShow.write(out);
out.close();
}
//a method for creating the chart XML document /ppt/charts/chart*.xml in the *.pptx ZIP archive
//and creating a MyXSLFChartShape as slide shape
public MyXSLFChartShape createXSLFChart(XSLFSlide slide) throws Exception {
OPCPackage oPCPackage = slide.getSlideShow().getPackage();
int chartCount = oPCPackage.getPartsByName(Pattern.compile("/ppt/charts/chart.*")).size() + 1;
PackagePartName partName = PackagingURIHelper.createPartName("/ppt/charts/chart" + chartCount + ".xml");
PackagePart part = oPCPackage.createPart(partName, "application/vnd.openxmlformats-officedocument.drawingml.chart+xml");
MyXSLFChart myXSLFChart = new MyXSLFChart(part);
MyXSLFChartShape myXSLFChartShape = new MyXSLFChartShape(slide, myXSLFChart);
return myXSLFChartShape;
}
public void drawPieChart(MyXSLFChartShape myXSLFChartShape) {
XSSFWorkbook workbook = myXSLFChartShape.getMyXSLFChart().getXSLFXSSFWorkbook().getXSSFWorkbook();
XSSFSheet sheet = workbook.getSheetAt(0);
sheet.createRow(0).createCell(0).setCellValue("Cat");
sheet.getRow(0).createCell(1).setCellValue("Val");
for (int r = 1; r < 4; r++) {
sheet.createRow(r).createCell(0).setCellValue("Cat" + r);
sheet.getRow(r).createCell(1).setCellValue(10*r);
}
CTChartSpace chartSpace = myXSLFChartShape.getMyXSLFChart().getChartSpace();
CTPieChart cTPieChart = chartSpace.addNewChart().addNewPlotArea().addNewPieChart();
cTPieChart.addNewVaryColors().setVal(true);
CTPieSer cTPieSer = cTPieChart.addNewSer();
cTPieSer.addNewIdx().setVal(0);
CTStrRef cTStrRef = cTPieSer.addNewTx().addNewStrRef();
cTStrRef.setF("Sheet0!$B$1");
cTStrRef.addNewStrCache().addNewPtCount().setVal(1);
CTStrVal cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(0);
cTStrVal.setV("Val");
cTStrRef = cTPieSer.addNewCat().addNewStrRef();
cTStrRef.setF("Sheet0!$A$2:$A$4");
cTStrRef.addNewStrCache().addNewPtCount().setVal(3);
for (int r = 1; r < 4; r++) {
cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(r-1);
cTStrVal.setV("Cat" + r);
}
CTNumRef cTNumRef = cTPieSer.addNewVal().addNewNumRef();
cTNumRef.setF("Sheet0!$B$2:$B$4");
cTNumRef.addNewNumCache().addNewPtCount().setVal(3);
for (int r = 1; r < 4; r++) {
CTNumVal cTNumVal = cTNumRef.getNumCache().addNewPt();
cTNumVal.setIdx(r-1);
cTNumVal.setV("" + (10*r));
}
}
public void drawBarChart(MyXSLFChartShape myXSLFChartShape) {
XSSFWorkbook workbook = myXSLFChartShape.getMyXSLFChart().getXSLFXSSFWorkbook().getXSSFWorkbook();
XSSFSheet sheet = workbook.getSheetAt(0);
sheet.createRow(0);
for (int c = 1; c < 4; c++) {
sheet.getRow(0).createCell(c).setCellValue("Cat" + c);
}
for (int r = 1; r < 5; r++) {
sheet.createRow(r).createCell(0).setCellValue("Val" + r);
for (int c = 1; c < 4; c++) {
sheet.getRow(r).createCell(c).setCellValue((10+r)*c);
}
}
CTChartSpace chartSpace = myXSLFChartShape.getMyXSLFChart().getChartSpace();
CTChart cTChart = chartSpace.addNewChart();
CTPlotArea cTPlotArea = cTChart.addNewPlotArea();
CTBarChart cTBarChart = cTPlotArea.addNewBarChart();
cTBarChart.addNewVaryColors().setVal(true);
cTBarChart.addNewBarDir().setVal(STBarDir.COL);
for (int r = 1; r < 5; r++) {
CTBarSer cTBarSer = cTBarChart.addNewSer();
CTStrRef cTStrRef = cTBarSer.addNewTx().addNewStrRef();
cTStrRef.setF("Sheet0!$A$" + (r+1));
cTStrRef.addNewStrCache().addNewPtCount().setVal(1);
CTStrVal cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(0);
cTStrVal.setV("Val" + r);
cTBarSer.addNewIdx().setVal(r-1);
CTAxDataSource cttAxDataSource = cTBarSer.addNewCat();
cTStrRef = cttAxDataSource.addNewStrRef();
cTStrRef.setF("Sheet0!$B$1:$D$1");
cTStrRef.addNewStrCache().addNewPtCount().setVal(3);
for (int c = 1; c < 4; c++) {
cTStrVal = cTStrRef.getStrCache().addNewPt();
cTStrVal.setIdx(c-1);
cTStrVal.setV("Cat" + c);
}
CTNumDataSource ctNumDataSource = cTBarSer.addNewVal();
CTNumRef cTNumRef = ctNumDataSource.addNewNumRef();
cTNumRef.setF("Sheet0!$B$" + (r+1) + ":$D$" + (r+1));
cTNumRef.addNewNumCache().addNewPtCount().setVal(3);
for (int c = 1; c < 4; c++) {
CTNumVal cTNumVal = cTNumRef.getNumCache().addNewPt();
cTNumVal.setIdx(c-1);
cTNumVal.setV("" + ((10+r)*c));
}
}
//telling the BarChart that it has axes and giving them Ids
cTBarChart.addNewAxId().setVal(123456);
cTBarChart.addNewAxId().setVal(123457);
//cat axis
CTCatAx cTCatAx = cTPlotArea.addNewCatAx();
cTCatAx.addNewAxId().setVal(123456); //id of the cat axis
CTScaling cTScaling = cTCatAx.addNewScaling();
cTScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
cTCatAx.addNewDelete().setVal(false);
cTCatAx.addNewAxPos().setVal(STAxPos.B);
cTCatAx.addNewCrossAx().setVal(123457); //id of the val axis
cTCatAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//val axis
CTValAx cTValAx = cTPlotArea.addNewValAx();
cTValAx.addNewAxId().setVal(123457); //id of the val axis
cTScaling = cTValAx.addNewScaling();
cTScaling.addNewOrientation().setVal(STOrientation.MIN_MAX);
cTValAx.addNewDelete().setVal(false);
cTValAx.addNewAxPos().setVal(STAxPos.L);
cTValAx.addNewCrossAx().setVal(123456); //id of the cat axis
cTValAx.addNewTickLblPos().setVal(STTickLblPos.NEXT_TO);
//legend
CTLegend cTLegend = cTChart.addNewLegend();
cTLegend.addNewLegendPos().setVal(STLegendPos.B);
cTLegend.addNewOverlay().setVal(false);
}
public static void main(String[] args) throws Exception {
CreatePPTXChartsXSSFWb createPPTXCharts = new CreatePPTXChartsXSSFWb();
}
//a class for providing a MyXSLFChartShape
private class MyXSLFChartShape {
private CTGraphicalObjectFrame _graphicalObjectFrame;
private XSLFSlide slide;
private MyXSLFChart myXSLFChart;
MyXSLFChartShape(XSLFSlide slide, MyXSLFChart myXSLFChart) throws Exception {
String rId = "rId" + (slide.getRelationParts().size()+1);
slide.addRelation(rId, XSLFRelation.CHART, myXSLFChart);
long cNvPrId = 1;
String cNvPrName = "MyChart";
int cNvPrNameCount = 1;
for (CTGraphicalObjectFrame currGraphicalObjectFrame : slide.getXmlObject().getCSld().getSpTree().getGraphicFrameList()) {
if (currGraphicalObjectFrame.getNvGraphicFramePr() != null) {
if (currGraphicalObjectFrame.getNvGraphicFramePr().getCNvPr() != null) {
cNvPrId++;
if (currGraphicalObjectFrame.getNvGraphicFramePr().getCNvPr().getName().startsWith(cNvPrName)) {
cNvPrNameCount++;
}
}
}
}
CTGraphicalObjectFrame graphicalObjectFrame = slide.getXmlObject().getCSld().getSpTree().addNewGraphicFrame();
CTGraphicalObjectFrameNonVisual cTGraphicalObjectFrameNonVisual = graphicalObjectFrame.addNewNvGraphicFramePr();
cTGraphicalObjectFrameNonVisual.addNewCNvGraphicFramePr();
cTGraphicalObjectFrameNonVisual.addNewNvPr();
CTNonVisualDrawingProps cTNonVisualDrawingProps = cTGraphicalObjectFrameNonVisual.addNewCNvPr();
cTNonVisualDrawingProps.setId(cNvPrId);
cTNonVisualDrawingProps.setName("MyChart" + cNvPrNameCount);
CTGraphicalObject graphicalObject = graphicalObjectFrame.addNewGraphic();
CTGraphicalObjectData graphicalObjectData = CTGraphicalObjectData.Factory.parse(
"<c:chart xmlns:c=\"http://schemas.openxmlformats.org/drawingml/2006/chart\" "
+"xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\" "
+"r:id=\"" + rId + "\"/>"
);
graphicalObjectData.setUri("http://schemas.openxmlformats.org/drawingml/2006/chart");
graphicalObject.setGraphicData(graphicalObjectData);
_graphicalObjectFrame = graphicalObjectFrame;
this.slide = slide;
this.myXSLFChart = myXSLFChart;
this.setAnchor(new Rectangle());
}
private void setAnchor(Rectangle2D anchor) {
CTTransform2D xfrm = (_graphicalObjectFrame.getXfrm() != null) ? _graphicalObjectFrame.getXfrm() : _graphicalObjectFrame.addNewXfrm();
CTPoint2D off = xfrm.isSetOff() ? xfrm.getOff() : xfrm.addNewOff();
long x = Units.toEMU(anchor.getX());
long y = Units.toEMU(anchor.getY());
off.setX(x);
off.setY(y);
CTPositiveSize2D ext = xfrm.isSetExt() ? xfrm.getExt() : xfrm.addNewExt();
long cx = Units.toEMU(anchor.getWidth());
long cy = Units.toEMU(anchor.getHeight());
ext.setCx(cx);
ext.setCy(cy);
}
private MyXSLFChart getMyXSLFChart() {
return myXSLFChart;
}
}
//a wrapper class for the ChartSpaceDocument /ppt/charts/chart*.xml in the *.pptx ZIP archive
private class MyXSLFChart extends POIXMLDocumentPart {
private CTChartSpace chartSpace;
private MyXSLFXSSFWorkbook myXSLFXSSFWorkbook;
private MyXSLFChart(PackagePart part) throws Exception {
super(part);
OPCPackage oPCPackage = part.getPackage();
int chartCount = oPCPackage.getPartsByName(Pattern.compile("/ppt/embeddings/.*.xlsx")).size() + 1;
PackagePartName partName = PackagingURIHelper.createPartName("/ppt/embeddings/Microsoft_Excel_Worksheet" + chartCount + ".xlsx");
PackagePart xlsxpart = oPCPackage.createPart(partName, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
myXSLFXSSFWorkbook = new MyXSLFXSSFWorkbook(xlsxpart);
String rId = "rId" + (this.getRelationParts().size()+1);
XSLFXSSFRelation xSLFXSSFRelationPACKAGE = new XSLFXSSFRelation(
"http://schemas.openxmlformats.org/officeDocument/2006/relationships/package");
this.addRelation(rId, xSLFXSSFRelationPACKAGE, myXSLFXSSFWorkbook);
chartSpace = ChartSpaceDocument.Factory.newInstance().addNewChartSpace();
CTExternalData cTExternalData = chartSpace.addNewExternalData();
cTExternalData.setId(rId);
//cTExternalData.addNewAutoUpdate().setVal(true);
}
private CTChartSpace getChartSpace() {
return chartSpace;
}
private MyXSLFXSSFWorkbook getXSLFXSSFWorkbook() {
return myXSLFXSSFWorkbook;
}
@Override
protected void commit() throws IOException {
XmlOptions xmlOptions = new XmlOptions(DEFAULT_XML_OPTIONS);
xmlOptions.setSaveSyntheticDocumentElement(new QName(CTChartSpace.type.getName().getNamespaceURI(), "chartSpace", "c"));
PackagePart part = getPackagePart();
OutputStream out = part.getOutputStream();
chartSpace.save(out, xmlOptions);
out.close();
}
}
//a wrapper class for the XSSFWorkbook /ppt/embeddings/Microsoft_Excel_Worksheet*.xlsx in the *.pptx ZIP archive
private class MyXSLFXSSFWorkbook extends POIXMLDocumentPart {
private XSSFWorkbook workbook;
private MyXSLFXSSFWorkbook(PackagePart part) throws Exception {
super(part);
workbook = new XSSFWorkbook();
XSSFSheet sheet = workbook.createSheet();
}
private XSSFWorkbook getXSSFWorkbook() {
return workbook;
}
@Override
protected void commit() throws IOException {
PackagePart part = getPackagePart();
OutputStream out = part.getOutputStream();
workbook.write(out);
workbook.close();
out.close();
}
}
//a class to note the relations
private class XSLFXSSFRelation extends POIXMLRelation {
private XSLFXSSFRelation(String rel) {
super(null, rel, null);
}
}
}
Edit January 29 2019:
Above code was working using apache poi 3.16 up to apache poi 3.17. To
make it work using current apache poi 4.0.1 the only need is changing the
imports a little bit:
...import org.apache.poi.openxml4j.opc.*;
//import static org.apache.poi.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
import static org.apache.poi.ooxml.POIXMLTypeLoader.DEFAULT_XML_OPTIONS;
import org.apache.poi.ooxml.*;
import org.apache.xmlbeans.*;
...
This is because the Office Open XML stuff now is in
org.apache.poi.ooxml.*and not more in org.apache.poi.*.
以上是 Java使用APACHE POI在PowerPoint中创建图表 的全部内容， 来源链接： utcz.com/qa/400508.html
