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win7系統(tǒng)下JFreeChart1.0.1和iText集成時，中文字符出現亂碼的解決方法

更新時間：2017-06-28 14:29:39| 編輯：本站整理 | 信息來源：本站整理|瀏覽數：
環(huán)境：JFreeChart 1.0.1、iText1.3
 
JFreeChart1.0.1中的Plot接口沒有提供SetValueLabelFont的方法，無法直接設置label的字體！
不過還好試了一下午總算弄出來了，具體代碼如下：
 
PdfWriter writer;
writer = PdfWriter.getInstance(document, new FileOutputStream(
filename));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfTemplate tp = cb.createTemplate(width, height);

// 關鍵是使用AsianFontMapper替代DefaultFontMapper
AsianFontMapper mapper = new AsianFontMapper("STSong-Light","UniGB-UCS2-H");
Graphics2D g2d = tp.createGraphics(width, height,
mapper);
Rectangle2D r2d = new Rectangle2D.Double(0, 0, width, height);
chart.draw(g2d, r2d);
g2d.dispose();
cb.addTemplate(tp, 0, 0);

記住別忘了添加iTextAisan.jar不然會報如下錯誤：下載地址：iTextAsian.jar下載（32&64位）

com.lowagie.text.DocumentException: Font 'STSong-Light' with 'UniGB-UCS2-H' is not recognized.
at com.lowagie.text.pdf.BaseFont.createFont(Unknown Source)
at com.lowagie.text.pdf.BaseFont.createFont(Unknown Source)
at com.lowagie.text.pdf.AsianFontMapper.awtToPdf(Unknown Source)
at com.lowagie.text.pdf.PdfGraphics2D.getCachedBaseFont(Unknown Source)
at com.lowagie.text.pdf.PdfGraphics2D.setFont(Unknown Source)
at com.lowagie.text.pdf.PdfGraphics2D.(Unknown Source)
at com.lowagie.text.pdf.PdfContentByte.createGraphics(Unknown Source)
at JFreeChartExample.convertToPdf(JFreeChartExample.Java:94)
at JFreeChartExample.main(JFreeChartExample.java:63)
com.lowagie.text.DocumentException: Font 'STSong-Light' with 'UniGB-UCS2-H' is not recognized.
at com.lowagie.text.pdf.BaseFont.createFont(Unknown Source)
at com.lowagie.text.pdf.BaseFont.createFont(Unknown Source)
at com.lowagie.text.pdf.AsianFontMapper.awtToPdf(Unknown Source)
at com.lowagie.text.pdf.PdfGraphics2D.getCachedBaseFont(Unknown Source)
at com.lowagie.text.pdf.PdfGraphics2D.setFont(Unknown Source)
at org.jfree.chart.title.TextTitle.arrangeRR(TextTitle.java:488)
at org.jfree.chart.title.TextTitle.arrange(TextTitle.java:450)
at org.jfree.chart.JFreeChart.drawTitle(JFreeChart.java:1125)
at org.jfree.chart.JFreeChart.draw(JFreeChart.java:1015)
at org.jfree.chart.JFreeChart.draw(JFreeChart.java:925)
at JFreeChartExample.convertToPdf(JFreeChartExample.java:97)
at JFreeChartExample.main(JFreeChartExample.java:63)
Exception in thread "main" java.lang.NullPointerException
at com.lowagie.text.pdf.PdfWriter.addSimple(Unknown Source)
at com.lowagie.text.pdf.PdfContentByte.setFontAndSize(Unknown Source)
at com.lowagie.text.pdf.PdfGraphics2D.drawString(Unknown Source)
at org.jfree.text.TextUtilities.drawRotatedString(TextUtilities.java:566)
at org.jfree.text.TextUtilities.drawRotatedString(TextUtilities.java:600)
at org.jfree.text.TextFragment.draw(TextFragment.java:212)
at org.jfree.text.TextLine.draw(TextLine.java:174)
at org.jfree.text.TextBlock.draw(TextBlock.java:269)
at org.jfree.text.TextBlock.draw(TextBlock.java:231)
at org.jfree.chart.title.TextTitle.drawHorizontal(TextTitle.java:628)
at org.jfree.chart.title.TextTitle.draw(TextTitle.java:569)
at org.jfree.chart.JFreeChart.drawTitle(JFreeChart.java:1128)
at org.jfree.chart.JFreeChart.draw(JFreeChart.java:1015)
at org.jfree.chart.JFreeChart.draw(JFreeChart.java:925)
at JFreeChartExample.convertToPdf(JFreeChartExample.java:97)
at JFreeChartExample.main(JFreeChartExample.java:63)


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