📄 pie_jsp.java
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package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import org.jfree.data.DefaultPieDataset;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.ChartFactory;
import java.awt.Font;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.chart.urls.StandardPieURLGenerator;
import org.jfree.chart.entity.StandardEntityCollection;
public final class Pie_jsp extends org.apache.jasper.runtime.HttpJspBase
implements org.apache.jasper.runtime.JspSourceDependent {
private static java.util.Vector _jspx_dependants;
public java.util.List getDependants() {
return _jspx_dependants;
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
JspFactory _jspxFactory = null;
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
PageContext _jspx_page_context = null;
try {
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html;charset=GBK");
pageContext = _jspxFactory.getPageContext(this, request, response,
null, true, 8192, true);
_jspx_page_context = pageContext;
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
request.setCharacterEncoding("gb2312");
out.write('\n');
//try{int NUMBER=Integer.parseInt(request.getParameter("Number"));String[] DNAME=new String[NUMBER];float[] VALUE=new float[NUMBER];String title=request.getParameter("Title"); DNAME[0]=request.getParameter("dname0"); VALUE[0]=Float.parseFloat(request.getParameter("value0")); DNAME[1]=request.getParameter("dname1"); VALUE[1]=Float.parseFloat(request.getParameter("value1")); DNAME[2]=request.getParameter("dname2"); VALUE[2]=Float.parseFloat(request.getParameter("value2")); DNAME[3]=request.getParameter("dname3"); VALUE[3]=Float.parseFloat(request.getParameter("value3")); DefaultPieDataset data = new DefaultPieDataset(); for(int i=0;i<NUMBER;i++){ data.setValue(DNAME[i],VALUE[i]); }//}catch(Exception e){}JFreeChart chart = ChartFactory.createPieChart(title,data, true,true, true);chart.setBackgroundPaint(java.awt.Color.white);//可选，设置图片背//chart.setTitle(new TextTitle("www.SenTom.net ",new Font("隶书", Font.ITALIC, 12)));//可选，设置图片标题PiePlot pie = (PiePlot)chart.getPlot();//PiePlot plot = new PiePlot(data);ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());//500是图片长度，300是图片高度String filename = ServletUtilities.saveChartAsJPEG(chart, 500, 300, info, session);//String fileName = "d:/test/" + filename;String graphURL = request.getContextPath()+ "/DisplayChart?filename=" + filename; //FileOutputStream fos_jpg = null;//fos_jpg = new FileOutputStream("D:\\"+filename);//ChartUtilities.writeChartAsJPEG(fos_jpg,100,chart,400,300,null);
out.write("\n");
out.write("<HTML>\n");
out.write("<HEAD>\n");
out.write(" <TITLE>Draw your chart</TITLE>\n");
out.write("</HEAD>\n");
out.write("<BODY>\n");
out.write("\n");
out.write("<P ALIGN=\"CENTER\">\n");
out.write(" <img src=\"");
out.print( graphURL );
out.write("\" width=500 height=300 border=0 usemap=\"#");
out.print( filename );
out.write("\">\n");
out.write("</P>\n");
out.write("\n");
out.write("<table align=\"center\" width=50% border=\"1\" bgcolor=\"yellow\">\n");
out.write("<tr><th>序号</th><th>名称</th><th>数值</th></th>\n");
for(int i=0;i<NUMBER;i++){
out.write("\n");
out.write("<tr> <th>");
out.print(i);
out.write("</th>\n");
out.write(" <th>");
out.print(DNAME[i]);
out.write("</th>\n");
out.write(" <th>");
out.print(VALUE[i]);
out.write("</th>\n");
out.write("</tr>\n");
}
out.write("\n");
out.write("\n");
out.write("</table>\n");
out.write("\n");
out.write("</BODY>\n");
out.write("</HTML>\n");
out.write("\n");
} catch (Throwable t) {
if (!(t instanceof SkipPageException)){
out = _jspx_out;
if (out != null && out.getBufferSize() != 0)
out.clearBuffer();
if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
}
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
}
}
}
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