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win8系统下JFreeChart1.0.1和iText集成时,中文字符出现乱码的处理办法

win8系统下JFreeChart1.0.1和iText集成时,中文字符出现乱码的处理办法

作者:佚名 来源:雨林木风系统 2018-09-07 14:00:02

win8系统下JFreeChart1.0.1和iText集成时,中文字符出现乱码的处理办法?

环境:JFreeChart 1.0.1、iText1.3   JFreeChart1.0.1中的Plot接口无提供setValueLabelFont的办法,没有法直接设置label的字体! 不过还好试了一下午总算弄出来了,具体代码如下:  
Pdfwriter writer;
writer = Pdfwriter.getInstance(document, new Fileoutputstream(
filename));
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfTemplate tp = cb.createTemplate(width, height);

// 关键是使用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);

记住别忘了添加iTextAisan.jar不然会报如下错误:下载地址:iTextAsian.jar下载(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)