📄 xyline_jsp.java
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package org.apache.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Locale;
import java.text.NumberFormat;
import javax.servlet.http.HttpSession;
import org.jfree.data.*;
import org.jfree.chart.*;
import org.jfree.chart.axis.*;
import org.jfree.chart.renderer.BarRenderer;
import org.jfree.chart.renderer.StandardXYItemRenderer;
import org.jfree.chart.plot.*;
import org.jfree.chart.entity.*;
import org.jfree.chart.labels.*;
import org.jfree.chart.urls.*;
import org.jfree.chart.servlet.*;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Iterator;
import org.jfree.data.time.*;
import java.awt.Font;
public final class XYLine_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");
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");
out.write(" \n");
out.write(" \n");
out.write(" \n");
request.setCharacterEncoding("gb2312");
out.write("\n");
out.write("<!DOCTYPE HTML PUBLIC \"-//w3c//dtd html 4.0 transitional//en\">\n");
int NUMBER=Integer.parseInt(request.getParameter("Number"));String title=request.getParameter("Title");float[] xPoints=new float[NUMBER];float[] yPoints=new float[NUMBER];xPoints[0]=Float.parseFloat(request.getParameter("x0"));yPoints[0]=Float.parseFloat(request.getParameter("y0"));xPoints[1]=Float.parseFloat(request.getParameter("x1"));yPoints[1]=Float.parseFloat(request.getParameter("y1"));xPoints[2]=Float.parseFloat(request.getParameter("x2"));yPoints[2]=Float.parseFloat(request.getParameter("y2"));xPoints[3]=Float.parseFloat(request.getParameter("x3"));yPoints[3]=Float.parseFloat(request.getParameter("y3"));xPoints[4]=Float.parseFloat(request.getParameter("x4"));yPoints[4]=Float.parseFloat(request.getParameter("y4"));xPoints[5]=Float.parseFloat(request.getParameter("x5"));yPoints[5]=Float.parseFloat(request.getParameter("y5"));xPoints[6]=Float.parseFloat(request.getParameter("x6"));yPoints[6]=Float.parseFloat(request.getParameter("y6"));xPoints[7]=Float.parseFloat(request.getParameter("x7"));yPoints[7]=Float.parseFloat(request.getParameter("y7"));xPoints[8]=Float.parseFloat(request.getParameter("x8"));yPoints[8]=Float.parseFloat(request.getParameter("y8"));xPoints[9]=Float.parseFloat(request.getParameter("x9"));yPoints[9]=Float.parseFloat(request.getParameter("y9"));XYSeries series=new XYSeries(title);for(int i=0;i<NUMBER;i++){ series.add(xPoints[i],yPoints[i]);}XYSeriesCollection XYdataset=new XYSeriesCollection();XYdataset.addSeries(series);//SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy", Locale.UK); //StandardXYToolTipGenerator ttg = new StandardXYToolTipGenerator(); //TimeSeriesURLGenerator urlg = new TimeSeriesURLGenerator //(sdf, "XY_chart.jsp", "series", "hitDate"); //绘制图表//x轴坐标 ValueAxis xAxis = new NumberAxis("X轴坐标"); //y轴坐标 ValueAxis yAxis = new NumberAxis("Y轴坐标"); //StandardXYItemRenderer renderer = new StandardXYItemRenderer //(StandardXYItemRenderer.LINES ,ttg, urlg);StandardXYItemRenderer renderer = new StandardXYItemRenderer(); renderer.setShapesFilled(true); renderer.setPlotShapes(true); //使每个点可见 Font font=new Font("黑体",Font.TRUETYPE_FONT, 12); XYPlot plot = new XYPlot(XYdataset, xAxis, yAxis, renderer); JFreeChart chart = new JFreeChart(title, font, plot, true); ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection()); String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300, info, session);String graphURL = request.getContextPath() + "/DisplayChart?filename=" + filename;
out.write("\n");
out.write("<html>\n");
out.write("<head>\n");
out.write("<title>XY曲线图</title>\n");
out.write("</head>\n");
out.write("<body bgcolor=\"#FFFFFF\">\n");
out.write("<center>\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(" <a href=\"main.jsp\">返回主页面</a>\n");
out.write(" <a href=\"inXY.jsp\">重新输入</a>\n");
out.write(" \n");
out.write(" \n");
out.write("</center>\n");
out.write("</body>\n");
out.write("</html>");
} 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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