将JFreeChart从Itext 5迁移到7
我正在将我的应用程序从Itext 5迁移到7，并且无法找到有关如何将JFreeChart添加到我的文档的任何内容。 我问过那个论坛，但他们无能为力，所以他们把我送到了这里。 这是我的工作Itext 5代码：
PdfContentByte cb=writer.getDirectContent(); PdfTemplate tp=cb.createTemplate(sizeX*scale+1,sizeY*scale+1); PdfGraphics2D g2d=new PdfGraphics2D(cb,sizeX*scale+1,sizeY*scale+1); tp.setWidth(sizeX*scale+1); tp.setHeight(sizeY*scale+1); Chart.getInstance().getChart().draw(g2d, new java.awt.geom.Rectangle2D.Float(0,0,sizeX*scale,sizeY*scale)); g2d.dispose(); cb.add(tp); 有人可以帮我创建等效的itext 7吗？ TIA。
据我了解，iText放弃了PdfGraphics2D类。 您可以尝试的一种方法是将OrsonPDF用于PDFGraphics2D实现（它将创建图表的PDF版本），然后将其嵌入由iText创建的PDF中。 我在这里写了一篇博文：
https://jfree.github.io/orsonpdf/
这是源代码（需要JFreeChart 1.5.0，OrsonPDF 1.7或更高版本，以及iText 7 – 我使用7.0.4）：
package com.orsonpdf.demo; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Font; import java.awt.Rectangle; import java.io.ByteArrayInputStream; import java.io.FileNotFoundException; import java.io.IOException; import com.itextpdf.kernel.pdf.PdfDocument; import com.itextpdf.kernel.pdf.PdfReader; import com.itextpdf.kernel.pdf.PdfWriter; import com.itextpdf.kernel.pdf.xobject.PdfFormXObject; import com.itextpdf.layout.Document; import com.itextpdf.layout.element.Image; import com.itextpdf.layout.element.Paragraph; import com.orsonpdf.PDFDocument; import com.orsonpdf.PDFGraphics2D; import com.orsonpdf.Page; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.block.BlockBorder; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.chart.title.TextTitle; import org.jfree.chart.ui.HorizontalAlignment; import org.jfree.data.time.Month; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; /** * Creates a PDF document with iText, then inserts a PDF chart generated with * JFreeChart and OrsonPDF. */ public class ITextPDFWithChart { private static byte[] generateChartPDF() { // here we use OrsonPDF to generate PDF in a byte array PDFDocument doc = new PDFDocument(); Rectangle bounds = new Rectangle(500, 335); Page page = doc.createPage(bounds); PDFGraphics2D g2 = page.getGraphics2D(); JFreeChart chart = createChart(createDataset()); chart.draw(g2, bounds); return doc.getPDFBytes(); } /** * Creates a chart. * * @param dataset a dataset. * * @return A chart. */ private static JFreeChart createChart(XYDataset dataset) { JFreeChart chart = ChartFactory.createTimeSeriesChart( "International Coffee Organisation : Coffee Prices", null, "US cents/lb", dataset); String fontName = "Serif"; chart.getTitle().setFont(new Font(fontName, Font.BOLD, 18)); chart.addSubtitle(new TextTitle( "Source: http://www.ico.org/historical/2010-19/PDF/HIST-PRICES.pdf", new Font(fontName, Font.PLAIN, 14))); XYPlot plot = (XYPlot) chart.getPlot(); plot.setDomainPannable(true); plot.setRangePannable(false); plot.setDomainCrosshairVisible(true); plot.setRangeCrosshairVisible(true); plot.getDomainAxis().setLowerMargin(0.0); plot.getDomainAxis().setLabelFont(new Font(fontName, Font.BOLD, 14)); plot.getDomainAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 10)); plot.getRangeAxis().setLabelFont(new Font(fontName, Font.BOLD, 14)); plot.getRangeAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 10)); plot.setRangeGridlinePaint(Color.GRAY); plot.setDomainGridlinePaint(Color.GRAY); chart.getLegend().setItemFont(new Font(fontName, Font.PLAIN, 14)); chart.getLegend().setFrame(BlockBorder.NONE); chart.getLegend().setHorizontalAlignment(HorizontalAlignment.CENTER); XYItemRenderer r = plot.getRenderer(); if (r instanceof XYLineAndShapeRenderer) { XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r; renderer.setDefaultShapesVisible(false); renderer.setDrawSeriesLineAsPath(true); // set the default stroke for all series renderer.setAutoPopulateSeriesStroke(false); renderer.setDefaultStroke(new BasicStroke(3.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL), false); renderer.setSeriesPaint(0, Color.RED); renderer.setSeriesPaint(1, new Color(24, 123, 58)); renderer.setSeriesPaint(2, new Color(149, 201, 136)); renderer.setSeriesPaint(3, new Color(1, 62, 29)); renderer.setSeriesPaint(4, new Color(81, 176, 86)); renderer.setSeriesPaint(5, new Color(0, 55, 122)); renderer.setSeriesPaint(6, new Color(0, 92, 165)); } return chart; } /** * Creates a dataset, consisting of two series of monthly data. * * @return the dataset. */ private static XYDataset createDataset() { TimeSeries s1 = new TimeSeries("Indicator Price"); s1.add(new Month(1, 2010), 126.80); s1.add(new Month(2, 2010), 123.37); s1.add(new Month(3, 2010), 125.30); s1.add(new Month(4, 2010), 126.89); s1.add(new Month(5, 2010), 128.10); s1.add(new Month(6, 2010), 142.20); s1.add(new Month(7, 2010), 153.41); s1.add(new Month(8, 2010), 157.46); s1.add(new Month(9, 2010), 163.61); s1.add(new Month(10, 2010), 161.56); s1.add(new Month(11, 2010), 173.90); s1.add(new Month(12, 2010), 184.26); s1.add(new Month(1, 2011), 197.35); s1.add(new Month(2, 2011), 216.03); s1.add(new Month(3, 2011), 224.33); s1.add(new Month(4, 2011), 231.24); s1.add(new Month(5, 2011), 227.97); s1.add(new Month(6, 2011), 215.58); s1.add(new Month(7, 2011), 210.36); s1.add(new Month(8, 2011), 212.19); s1.add(new Month(9, 2011), 213.04); s1.add(new Month(10, 2011), 193.90); s1.add(new Month(11, 2011), 193.66); s1.add(new Month(12, 2011), 189.02); s1.add(new Month(1, 2012), 188.90); s1.add(new Month(2, 2012), 182.29); s1.add(new Month(3, 2012), 167.77); s1.add(new Month(4, 2012), 160.46); s1.add(new Month(5, 2012), 157.68); s1.add(new Month(6, 2012), 145.31); s1.add(new Month(7, 2012), 159.07); s1.add(new Month(8, 2012), 148.50); s1.add(new Month(9, 2012), 151.28); s1.add(new Month(10, 2012), 147.12); s1.add(new Month(11, 2012), 136.35); s1.add(new Month(12, 2012), 131.31); s1.add(new Month(1, 2013), 135.38); s1.add(new Month(2, 2013), 131.51); s1.add(new Month(3, 2013), 131.38); TimeSeries s2 = new TimeSeries("Columbian Milds"); s2.add(new Month(1, 2010), 207.51); s2.add(new Month(2, 2010), 204.71); s2.add(new Month(3, 2010), 205.71); s2.add(new Month(4, 2010), 200.00); s2.add(new Month(5, 2010), 200.54); s2.add(new Month(6, 2010), 224.49); s2.add(new Month(7, 2010), 235.52); s2.add(new Month(8, 2010), 243.98); s2.add(new Month(9, 2010), 247.77); s2.add(new Month(10, 2010), 230.02); s2.add(new Month(11, 2010), 244.02); s2.add(new Month(12, 2010), 261.97); s2.add(new Month(1, 2011), 279.88); s2.add(new Month(2, 2011), 296.44); s2.add(new Month(3, 2011), 300.68); s2.add(new Month(4, 2011), 312.95); s2.add(new Month(5, 2011), 302.17); s2.add(new Month(6, 2011), 287.95); s2.add(new Month(7, 2011), 285.21); s2.add(new Month(8, 2011), 286.97); s2.add(new Month(9, 2011), 287.54); s2.add(new Month(10, 2011), 257.66); s2.add(new Month(11, 2011), 256.99); s2.add(new Month(12, 2011), 251.60); s2.add(new Month(1, 2012), 255.91); s2.add(new Month(2, 2012), 244.14); s2.add(new Month(3, 2012), 222.84); s2.add(new Month(4, 2012), 214.46); s2.add(new Month(5, 2012), 207.32); s2.add(new Month(6, 2012), 184.67); s2.add(new Month(7, 2012), 202.56); s2.add(new Month(8, 2012), 187.14); s2.add(new Month(9, 2012), 190.10); s2.add(new Month(10, 2012), 181.39); s2.add(new Month(11, 2012), 170.08); s2.add(new Month(12, 2012), 164.40); s2.add(new Month(1, 2013), 169.19); s2.add(new Month(2, 2013), 161.70); s2.add(new Month(3, 2013), 161.53); TimeSeries s3 = new TimeSeries("Other Milds"); s3.add(new Month(1, 2010), 158.90); s3.add(new Month(2, 2010), 157.86); s3.add(new Month(3, 2010), 164.50); s3.add(new Month(4, 2010), 169.55); s3.add(new Month(5, 2010), 173.38); s3.add(new Month(6, 2010), 190.90); s3.add(new Month(7, 2010), 203.21); s3.add(new Month(8, 2010), 211.59); s3.add(new Month(9, 2010), 222.71); s3.add(new Month(10, 2010), 217.64); s3.add(new Month(11, 2010), 233.48); s3.add(new Month(12, 2010), 248.17); s3.add(new Month(1, 2011), 263.77); s3.add(new Month(2, 2011), 287.89); s3.add(new Month(3, 2011), 292.07); s3.add(new Month(4, 2011), 300.12); s3.add(new Month(5, 2011), 291.09); s3.add(new Month(6, 2011), 274.98); s3.add(new Month(7, 2011), 268.02); s3.add(new Month(8, 2011), 270.44); s3.add(new Month(9, 2011), 274.88); s3.add(new Month(10, 2011), 247.82); s3.add(new Month(11, 2011), 245.09); s3.add(new Month(12, 2011), 236.71); s3.add(new Month(1, 2012), 237.21); s3.add(new Month(2, 2012), 224.16); s3.add(new Month(3, 2012), 201.26); s3.add(new Month(4, 2012), 191.45); s3.add(new Month(5, 2012), 184.65); s3.add(new Month(6, 2012), 168.69); s3.add(new Month(7, 2012), 190.45); s3.add(new Month(8, 2012), 174.82); s3.add(new Month(9, 2012), 178.98); s3.add(new Month(10, 2012), 173.32); s3.add(new Month(11, 2012), 159.91); s3.add(new Month(12, 2012), 152.74); s3.add(new Month(1, 2013), 157.29); s3.add(new Month(2, 2013), 149.46); s3.add(new Month(3, 2013), 149.78); TimeSeries s4 = new TimeSeries("Brazilian Naturals"); s4.add(new Month(1, 2010), 131.67); s4.add(new Month(2, 2010), 124.57); s4.add(new Month(3, 2010), 126.21); s4.add(new Month(4, 2010), 126.07); s4.add(new Month(5, 2010), 127.45); s4.add(new Month(6, 2010), 143.20); s4.add(new Month(7, 2010), 156.87); s4.add(new Month(8, 2010), 163.21); s4.add(new Month(9, 2010), 175.15); s4.add(new Month(10, 2010), 175.38); s4.add(new Month(11, 2010), 190.62); s4.add(new Month(12, 2010), 204.25); s4.add(new Month(1, 2011), 219.77); s4.add(new Month(2, 2011), 247.00); s4.add(new Month(3, 2011), 260.98); s4.add(new Month(4, 2011), 273.40); s4.add(new Month(5, 2011), 268.66); s4.add(new Month(6, 2011), 250.59); s4.add(new Month(7, 2011), 245.69); s4.add(new Month(8, 2011), 249.83); s4.add(new Month(9, 2011), 255.64); s4.add(new Month(10, 2011), 234.28); s4.add(new Month(11, 2011), 236.75); s4.add(new Month(12, 2011), 228.79); s4.add(new Month(1, 2012), 228.21); s4.add(new Month(2, 2012), 215.40); s4.add(new Month(3, 2012), 192.03); s4.add(new Month(4, 2012), 180.90); s4.add(new Month(5, 2012), 174.17); s4.add(new Month(6, 2012), 156.17); s4.add(new Month(7, 2012), 175.98); s4.add(new Month(8, 2012), 160.05); s4.add(new Month(9, 2012), 166.53); s4.add(new Month(10, 2012), 161.20); s4.add(new Month(11, 2012), 148.25); s4.add(new Month(12, 2012), 140.69); s4.add(new Month(1, 2013), 145.17); s4.add(new Month(2, 2013), 136.63); s4.add(new Month(3, 2013), 133.61); TimeSeries s5 = new TimeSeries("Robustas"); s5.add(new Month(1, 2010), 69.92); s5.add(new Month(2, 2010), 67.88); s5.add(new Month(3, 2010), 67.25); s5.add(new Month(4, 2010), 71.59); s5.add(new Month(5, 2010), 70.70); s5.add(new Month(6, 2010), 76.92); s5.add(new Month(7, 2010), 85.27); s5.add(new Month(8, 2010), 82.68); s5.add(new Month(9, 2010), 81.28); s5.add(new Month(10, 2010), 85.27); s5.add(new Month(11, 2010), 92.04); s5.add(new Month(12, 2010), 94.09); s5.add(new Month(1, 2011), 101.09); s5.add(new Month(2, 2011), 109.35); s5.add(new Month(3, 2011), 118.13); s5.add(new Month(4, 2011), 117.37); s5.add(new Month(5, 2011), 121.98); s5.add(new Month(6, 2011), 117.95); s5.add(new Month(7, 2011), 112.73); s5.add(new Month(8, 2011), 112.07); s5.add(new Month(9, 2011), 106.06); s5.add(new Month(10, 2011), 98.10); s5.add(new Month(11, 2011), 97.24); s5.add(new Month(12, 2011), 98.41); s5.add(new Month(1, 2012), 96.72); s5.add(new Month(2, 2012), 101.93); s5.add(new Month(3, 2012), 103.57); s5.add(new Month(4, 2012), 101.80); s5.add(new Month(5, 2012), 106.88); s5.add(new Month(6, 2012), 105.70); s5.add(new Month(7, 2012), 107.06); s5.add(new Month(8, 2012), 106.52); s5.add(new Month(9, 2012), 104.95); s5.add(new Month(10, 2012), 104.47); s5.add(new Month(11, 2012), 97.67); s5.add(new Month(12, 2012), 96.59); s5.add(new Month(1, 2013), 99.69); s5.add(new Month(2, 2013), 104.03); s5.add(new Month(3, 2013), 106.26); TimeSeries s6 = new TimeSeries("Futures (London)"); s6.add(new Month(1, 2010), 62.66); s6.add(new Month(2, 2010), 60.37); s6.add(new Month(3, 2010), 58.64); s6.add(new Month(4, 2010), 62.21); s6.add(new Month(5, 2010), 62.46); s6.add(new Month(6, 2010), 69.72); s6.add(new Month(7, 2010), 78.17); s6.add(new Month(8, 2010), 78.42); s6.add(new Month(9, 2010), 75.87); s6.add(new Month(10, 2010), 80.08); s6.add(new Month(11, 2010), 86.40); s6.add(new Month(12, 2010), 88.70); s6.add(new Month(1, 2011), 96.02); s6.add(new Month(2, 2011), 104.53); s6.add(new Month(3, 2011), 111.36); s6.add(new Month(4, 2011), 111.34); s6.add(new Month(5, 2011), 116.76); s6.add(new Month(6, 2011), 110.51); s6.add(new Month(7, 2011), 103.36); s6.add(new Month(8, 2011), 102.71); s6.add(new Month(9, 2011), 96.10); s6.add(new Month(10, 2011), 88.64); s6.add(new Month(11, 2011), 85.78); s6.add(new Month(12, 2011), 87.65); s6.add(new Month(1, 2012), 84.19); s6.add(new Month(2, 2012), 88.69); s6.add(new Month(3, 2012), 91.37); s6.add(new Month(4, 2012), 91.81); s6.add(new Month(5, 2012), 96.82); s6.add(new Month(6, 2012), 94.75); s6.add(new Month(7, 2012), 96.14); s6.add(new Month(8, 2012), 96.12); s6.add(new Month(9, 2012), 94.65); s6.add(new Month(10, 2012), 94.66); s6.add(new Month(11, 2012), 87.32); s6.add(new Month(12, 2012), 85.94); s6.add(new Month(1, 2013), 88.85); s6.add(new Month(2, 2013), 94.41); s6.add(new Month(3, 2013), 97.22); TimeSeries s7 = new TimeSeries("Futures (New York)"); s7.add(new Month(1, 2010), 142.76); s7.add(new Month(2, 2010), 134.35); s7.add(new Month(3, 2010), 134.97); s7.add(new Month(4, 2010), 135.12); s7.add(new Month(5, 2010), 135.81); s7.add(new Month(6, 2010), 152.36); s7.add(new Month(7, 2010), 165.23); s7.add(new Month(8, 2010), 175.10); s7.add(new Month(9, 2010), 187.80); s7.add(new Month(10, 2010), 190.43); s7.add(new Month(11, 2010), 206.92); s7.add(new Month(12, 2010), 221.51); s7.add(new Month(1, 2011), 238.05); s7.add(new Month(2, 2011), 261.41); s7.add(new Month(3, 2011), 274.10); s7.add(new Month(4, 2011), 285.58); s7.add(new Month(5, 2011), 277.72); s7.add(new Month(6, 2011), 262.52); s7.add(new Month(7, 2011), 255.90); s7.add(new Month(8, 2011), 260.39); s7.add(new Month(9, 2011), 261.39); s7.add(new Month(10, 2011), 236.74); s7.add(new Month(11, 2011), 235.25); s7.add(new Month(12, 2011), 227.23); s7.add(new Month(1, 2012), 227.50); s7.add(new Month(2, 2012), 212.09); s7.add(new Month(3, 2012), 188.78); s7.add(new Month(4, 2012), 181.75); s7.add(new Month(5, 2012), 176.50); s7.add(new Month(6, 2012), 159.93); s7.add(new Month(7, 2012), 183.20); s7.add(new Month(8, 2012), 169.77); s7.add(new Month(9, 2012), 175.36); s7.add(new Month(10, 2012), 170.43); s7.add(new Month(11, 2012), 155.72); s7.add(new Month(12, 2012), 149.58); s7.add(new Month(1, 2013), 154.28); s7.add(new Month(2, 2013), 144.89); s7.add(new Month(3, 2013), 141.43); TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(s1); dataset.addSeries(s2); dataset.addSeries(s3); dataset.addSeries(s4); dataset.addSeries(s5); dataset.addSeries(s6); dataset.addSeries(s7); return dataset; } public static void main(String[] args) throws FileNotFoundException, IOException { PdfWriter writer = new PdfWriter("ITextPDFWithChart.pdf"); PdfDocument targetPDF = new PdfDocument(writer); Document document = new Document(targetPDF); document.add(new Paragraph("Demo showing a JFreeChart being rendered into a PDF document created by iText 7.")); PdfReader reader = new PdfReader(new ByteArrayInputStream(generateChartPDF())); PdfDocument chartDoc = new PdfDocument(reader); PdfFormXObject chart = chartDoc.getFirstPage().copyAsFormXObject(targetPDF); Image chartImage = new Image(chart); document.add(new Paragraph("Here we add a chart... ").add(chartImage)); document.close(); } }