Question

JFreeChart如何修改字体

theme.setExtraLargeFont(new Font("Dialog", Font.PLAIN, 7)); theme.setLargeFont(new Font("Dialog", Font.PLAIN, 7)); theme.setRegularFont(new Font("宋体", Font.PLAIN, 6)); theme.setSmallFont(new Font("宋体", Font.PLAIN, 5)); return theme;
字体大小能改变，就是字体怎么改也没用。。

Answer 1

jfreechart设置字体

有中文的背景下，如果不设置字体，将会乱码。

分为柱状，饼状，曲线图。
分别为：
柱状：
[java] view plaincopy
TextTitle textTitle = chart.getTitle();
textTitle.setFont(new Font("黑体",Font.BOLD,15));

CategoryPlot plot=chart.getCategoryPlot();
CategoryAxis domainAxis=plot.getDomainAxis();
domainAxis.setLabelFont(new Font("黑体",Font.BOLD,15));
domainAxis.setTickLabelFont(new Font("黑体",Font.BOLD,15));
ValueAxis valueAxis=plot.getRangeAxis();
valueAxis.setLabelFont(new Font("黑体",Font.BOLD,15));

饼状：
[java] view plaincopy
TextTitle textTitle = chart.getTitle();
textTitle.setFont(new Font("黑体",Font.BOLD,15));

PiePlot pieplot = (PiePlot) chart.getPlot();
pieplot.setLabelFont(new Font("宋体", 0, 12));

//没有数据的时候显示的内容
pieplot.setNoDataMessage("无数据显示");
pieplot.setCircular(false);
pieplot.setLabelGap(0.02D);

chart.getLegend().setItemFont(new Font("黑体",Font.BOLD,15));

曲线：
[java] view plaincopy
//设置子标题
TextTitle subtitle = new TextTitle("2007年度", new Font("黑体",
Font.BOLD, 12));
chart.addSubtitle(subtitle);
//设置主标题
chart.setTitle(new TextTitle("阿蜜果blog访问量统计", new Font("隶书",
Font.ITALIC, 15)));
chart.setAntiAlias(true);

XYPlot xyPlot=chart.getXYPlot();
ValueAxis valueAxis=xyPlot.getDomainAxis();
valueAxis.setLabelFont( new Font("黑体",
Font.BOLD, 12));
valueAxis.setTickLabelFont( new Font("黑体",
Font.BOLD, 12));
NumberAxis numberAxis = (NumberAxis) xyPlot.getRangeAxis();
// 设置y轴上的字体
numberAxis.setTickLabelFont(new Font("宋体", Font.PLAIN, 13));
// 设置y轴上的标题字体
numberAxis.setLabelFont(new Font("宋体", Font.PLAIN, 13));
chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 13));