poi document.addPictureData
时间: 2024-06-14 16:06:42 浏览: 18
根据提供的引用内容,`document.addPictureData`是Apache POI库中的一个方法,用于向文档中添加图片数据。该方法接受两个参数:图片数据和图片类型。下面是一个示例代码:
```java
String blipId = document.addPictureData(new FileInputStream(new File("C:\\Users\\amitabh\\Pictures\\pics\\3.jpg")), Document.PICTURE_TYPE_JPEG);
```
在这个示例中,我们使用`FileInputStream`从文件系统中读取图片数据,并将其作为参数传递给`addPictureData`方法。同时,我们还指定了图片的类型为JPEG。该方法将返回一个`blipId`,用于标识添加的图片。
请注意,这只是一个示例代码,实际使用时需要根据具体情况进行适当的修改。
相关问题
poi导出word柱状图
以下是使用POI导出Word柱状图的步骤:
1. 导入POI库和相关依赖:
```java
import org.apache.poi.xwpf.usermodel.*;
import org.apache.poi.xddf.usermodel.chart.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
```
2. 创建一个新的Word文档:
```java
XWPFDocument document = new XWPFDocument();
```
3. 创建一个柱状图数据集:
```java
XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet sheet = workbook.createSheet("Data");
Row row = sheet.createRow(0);
row.createCell(0).setCellValue("Category");
row.createCell(1).setCellValue("Value1");
row.createCell(2).setCellValue("Value2");
row = sheet.createRow(1);
row.createCell(0).setCellValue("Category 1");
row.createCell(1).setCellValue(10);
row.createCell(2).setCellValue(20);
row = sheet.createRow(2);
row.createCell(0).setCellValue("Category 2");
row.createCell(1).setCellValue(30);
row.createCell(2).setCellValue(40);
row = sheet.createRow(3);
row.createCell(0).setCellValue("Category 3");
row.createCell(1).setCellValue(50);
row.createCell(2).setCellValue(60);
XDDFDataSource<String> categories = XDDFDataSourcesFactory.fromStringCellRange(sheet, new CellRangeAddress(1, 3, 0, 0));
XDDFNumericalDataSource<Double> values1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 3, 1, 1));
XDDFNumericalDataSource<Double> values2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet, new CellRangeAddress(1, 3, 2, 2));
```
4. 创建一个柱状图:
```java
XWPFChart chart = document.createChart(15, 15, 600, 400);
chart.setTitleText("Bar Chart");
chart.setTitleOverlay(false);
XDDFChartLegend legend = chart.getOrAddLegend();
legend.setPosition(LegendPosition.TOP_RIGHT);
XDDFCategoryAxis categoryAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
XDDFValueAxis valueAxis = chart.createValueAxis(AxisPosition.LEFT);
valueAxis.setCrosses(AxisCrosses.AUTO_ZERO);
XDDFChartData data = chart.createData(ChartTypes.BAR, categoryAxis, valueAxis);
data.setVaryColors(true);
XDDFChartData.Series series1 = data.addSeries(categories, values1);
series1.setTitle("Value1", null);
XDDFChartData.Series series2 = data.addSeries(categories, values2);
series2.setTitle("Value2", null);
chart.plot(data);
```
5. 将图表插入到Word文档中:
```java
XWPFParagraph paragraph = document.createParagraph();
XWPFRun run = paragraph.createRun();
run.setText("Bar Chart:");
run.addBreak();
XDDFPicture picture = chart.getPreferredSize();
String id = document.addPictureData(picture.getData(), Document.PICTURE_TYPE_PNG);
document.createPicture(id, document.getNextPicNameNumber(Document.PICTURE_TYPE_PNG), picture.getWidth(), picture.getHeight());
```
6. 保存Word文档:
```java
FileOutputStream out = new FileOutputStream("chart.docx");
document.write(out);
out.close();
document.close();
```
POI 中 CTShape
在POI中,CTShape是一个基于路径的图形对象,是在Apache XMLBeans框架下生成的Java类。它主要用于表示Word文档中的图形对象,可以设置其形状、颜色、填充和描边等属性。在使用POI操作Word文档时,可以使用XWPFRun类的createPicture()方法来创建CTShape对象,并将其插入到文档中,例如:
```java
XWPFRun run = paragraph.createRun();
InputStream pictureData = new FileInputStream("picture.png");
String pictureId = document.addPictureData(pictureData, Document.PICTURE_TYPE_PNG);
CTPicture ctPicture = CTPicture.Factory.newInstance();
CTShape ctShape = ctPicture.addNewSpPr().addNewPrstGeom();
ctShape.setPrst(STShapeType.RECT);
ctShape.addNewSolidFill().addNewSrgbClr().setVal(new byte[]{(byte) 0xff, 0x00, 0x00});
ctShape.addNewLn().addNewSolidFill().addNewSrgbClr().setVal(new byte[]{0x00, 0xff, 0x00});
ctPicture.addNewBlipFill().addNewBlip().setEmbed(pictureId);
run.addPicture(ctPicture, XWPFDocument.PICTURE_TYPE_PNG, "picture.png", Units.toEMU(200), Units.toEMU(200));
```
上述代码创建了一个200x200像素的矩形形状的CTShape对象,并设置了其填充和描边颜色,然后将其插入到文档中。
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