JFreeChart处理乱码
JFreeChart中文乱码处理：
在ChartFactory.create...Chart（）前设置主题字体，代码如下：
StandardChartTheme standardChartTheme = new StandardChartTheme("JFree"); //或者为LegacystandardChartTheme.setLargeFont(new Font("宋体", Font.BOLD, 12));standardChartTheme.setRegularFont(new Font("宋体", Font.BOLD, 12));standardChartTheme.setExtraLargeFont(new Font("宋体", Font.BOLD, 12));standardChartTheme.setSmallFont(new Font("宋体", Font.BOLD, 12));ChartFactory.setChartTheme(standardChartTheme);