wanghuailong的专栏

 public String downFile() {  String fileName = null;// 名称  String filepath = request.getParameter("filepath");//客户端传过来的文件相对路径  String realpath = this.request.getRealPath(filepath);//获得绝对路径  realpath =

柱状图(CategoryPlot):    CategoryPlot plot=chart.getCategoryPlot();//获取图表区域对象   CategoryAxis domainAxis=plot.getDomainAxis();    //水平底部列表    domainAxis.setLabelFont(new Font("黑体",Font.BOLD,14));    /