JFreechart 1.06开发仪表盘一个问题！请高手指教！

Question

首先看看代码！ 
import java.io.IOException; 
import java.util.*; 
import javax.portlet.*; 
import net.luculent.core.base.Charset; 
import net.luculent.core.base.FormatDate; 
import net.luculent.core.database.Database; 
import net.luculent.core.database.Rowset; 
import net.luculent.liems.l3p.portal.core.entity.PortletObject; 
import net.luculent.liems.l3p.portlet.core.L3PGenericPortlet; 
import net.luculent.liems.util.SessionInfo; 
import net.luculent.liems.util.Tools; 
import org.jfree.chart.ChartRenderingInfo; 
import org.jfree.chart.ChartUtilities; 
import org.jfree.chart.entity.*; 
import org.jfree.chart.servlet.ServletUtilities; 
/** 
* <p>Title: </p> 
* 
* <p>Description: </p> 
* 
* <p>Copyright: Copyright (c) 2008</p> 
* 
* <p>Company: </p> 
* 
* @author not attributable 
* @version 1.0 
*/ 
public class EleRate extends L3PGenericPortlet{ 
public EleRate() { 
} public void processAction(ActionRequest actionrequest, ActionResponse actionresponse) 
throws PortletException, IOException 
{ 
} 
protected void doView(RenderRequest request, RenderResponse response) 
throws PortletException, IOException 
{ 
String portletName = super.getPortlet(request).getName(); 
request.setAttribute("portletName", portletName); 
PortletContext ctx = getPortletContext(); 
SessionInfo sessionInfo = Tools.getSessionInfo(super.getServletRequest(request)); 
String currUserId = sessionInfo.getUserId(); 
ServletUtilities.setTempFilePrefix("public"); 
PowerRateInfo tsf = new PowerRateInfo(currUserId, ""); //就是这里，在JBUILDER中调试的时候，就会飞走PowerRateInfo 中的代码见下面，注释掉部分就可以调试！
//org.jfree.chart.JFreeChart ss = tsf.createBar3DChart(sessionInfo); 
ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection()); 
//String myFilename = ServletUtilities.saveChartAsPNG(ss, 376, 260, info, null); 
Collection entities = info.getEntityCollection().getEntities(); 
if(entities != null) 
{ 
int count = entities.size(); 
for(int i = count - 1; i >= 0; i--) 
{ 
ChartEntity entity = (ChartEntity)entities.toArray(); 
if(entity.getToolTipText() != null || entity.getURLText() != null) 
{ 
String newURL = entity.getURLText(); 
// newURL = "#\" onclick=\"ImpGu_gotoProgram('" + newURL + "')"; 
entity.setURLText(newURL); 
} 
} } 
// String map = ChartUtilities.getImageMap(myFilename, info); 
// String url = request.getContextPath() + "/servlet/DisplayChart?filename=" + myFilename; 
// request.setAttribute("url", url); 
// request.setAttribute("map", map); 
// request.setAttribute("myFilename", myFilename); 
// PortletRequestDispatcher dispatcher = ctx.getRequestDispatcher("/xslt/portal/portlets/" + portletName + "/" + portletName + "_normal.jsp"); 
// dispatcher.include(request, response); 
} 
}

Answer 1

/********************************************************************/
/*************将我现在注释掉的部分注释掉就可以单步调试了************/
public class PowerRateInfo {
    private String currUserId;
    private String busiName;
    public PowerRateInfo() {
    }
    public PowerRateInfo(String currUserId, String busiName) {
       this.currUserId = currUserId;
       this.busiName = busiName;
   }
 public JFreeChart RateChart(SessionInfo sessionInfo) {
      JFreeChart jfreechart = null;
     DefaultValueDataset dataset = new DefaultValueDataset();
     dataset = new DefaultValueDataset(20D);
       //实例化DialPlot
       DialPlot dialplot = new DialPlot();
       dialplot.setView(0.0D, 0.0D, 1.0D, 1.0D);
       dialplot.setDataset(dataset);
       //开始设置显示框架结构
       SimpleDialFrame simpledialframe = new SimpleDialFrame();
       simpledialframe.setBackgroundPaint(Color.lightGray);
       simpledialframe.setForegroundPaint(Color.darkGray);
//       dialplot.setDialFrame(simpledialframe);
       //结束设置显示框架结构
       GradientPaint gradientpaint = new GradientPaint(new Point(),
               new Color(255, 255, 255), new Point(), new Color(170, 170, 220));
       DialBackground dialbackground = new DialBackground(gradientpaint);
       dialbackground.setGradientPaintTransformer(new
               StandardGradientPaintTransformer(GradientPaintTransformType.
                                                VERTICAL));
//       dialplot.setBackground(dialbackground);
       //设置显示在表盘中央位置的信息
       DialTextAnnotation dialtextannotation = new DialTextAnnotation("综合厂用电率");
       dialtextannotation.setFont(new Font("Dialog", 1, 14));
       dialtextannotation.setRadius(0.69999999999999996D);
//       dialplot.addLayer(dialtextannotation);
       DialValueIndicator dialvalueindicator = new DialValueIndicator(0, "c");
//       dialplot.addLayer(dialvalueindicator);
       //根据表盘的直径大小（0.88），设置总刻度范围
       StandardDialScale standarddialscale = new StandardDialScale(4D, 7D, 2D,
               8D);
       standarddialscale.setTickRadius(0.38D); //设置直径大小
       standarddialscale.setTickLabelOffset(0.14999999999999999D);
       standarddialscale.setTickLabelFont(new Font("Dialog", 0, 14));
       //主意是 dialplot.addScale（）不是dialplot.addLayer（）
//       dialplot.addScale(0, standarddialscale);
       //设置刻度范围（红色）
       StandardDialRange standarddialrange = new StandardDialRange(4D, 5D,
               Color.red);
       standarddialrange.setInnerRadius(0.52000000000000002D);
       standarddialrange.setOuterRadius(0.55000000000000004D);
//       dialplot.addLayer(standarddialrange);
       //设置刻度范围（橘黄色）
       StandardDialRange standarddialrange1 = new StandardDialRange(5D, 6D,
               Color.orange);
       standarddialrange1.setInnerRadius(0.52000000000000002D);
       standarddialrange1.setOuterRadius(0.55000000000000004D);
//       dialplot.addLayer(standarddialrange1);
       //设置刻度范围（绿色）
       StandardDialRange standarddialrange2 = new StandardDialRange(6D, 7D,
               Color.green);
       standarddialrange2.setInnerRadius(0.52000000000000002D);
       standarddialrange2.setOuterRadius(0.55000000000000004D);
//       dialplot.addLayer(standarddialrange2);
       //设置指针
       org.jfree.experimental.chart.plot.dial.DialPointer.Pointer pointer = new
               org.jfree.experimental.chart.plot.dial.DialPointer.Pointer();
//       dialplot.addLayer(pointer);
       //实例化DialCap
//       DialCap dialcap = new DialCap();
//       dialcap.setRadius(0.10000000000000001D);
//       dialplot.setCap(dialcap);
       //生成chart对象
       jfreechart = new JFreeChart(dialplot);
       return jfreechart;
   }}
/***********飞走后就到了这里*************/// JBuilder API Decompiler stub source generated from class file
// 2008-10-28
// -- implementation of methods is not available
package net.luculent.liems.l3p.portal;
// Imports
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.luculent.liems.l3p.portal.core.entity.Portal;
import net.luculent.liems.l3p.portal.core.entity.PortalTab;
import net.luculent.liems.l3p.portal.core.entity.PortletObject;
import net.luculent.liems.l3p.portal.core.service.PortalService;
public class Servlet extends HttpServlet {
  // Constructors
  public Servlet() { }
  // Methods
  public void init(ServletConfig config) throws ServletException { }
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }
  private void process(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { }
  protected Portal getPortal(HttpServletRequest request) { return null;}
  protected PortalTab getPortalTab(HttpServletRequest request) { return null;}
  protected List getPortletsByTab(HttpServletRequest request, int id) { return null;}
  protected PortletObject getPortlet(HttpServletRequest request) { return null;}
  protected PortalService getPortalService(ServletContext context) { return null;}
  private Object getService(ServletContext context, String serviceName) { return null;}
}
/*************后台报的错是这样的*************************/
java.lang.NoClassDefFoundError: org/jfree/experimental/chart/plot/dial/DialPlot希望各位高手可以帮忙解决，急！！！
3Q

Answer 2

java.lang.NoClassDefFoundError: org/jfree/experimental/chart/plot/dial/DialPlot 
太长了,看问题的最后一句话就很明朗,你没有引入jar文件啊

Answer 3

你用了最新版的类吗,这个类我手头的版本上都没有experimental这个包啊

Answer 4

jfreechart-1.0.6-experimental.jar
no this jar

Answer 5

我也没在官网上找到这个包
http://download.csdn.net/source/609446
在这下吧,我说了,其实我不专业的,呵呵.

Answer 6

http://www.jfree.org/jfreechart/faq.html#FAQ13看FAQ里面有没有吧,我要睡了.

Answer 7

还是谢谢你了！我也去休息了！
要是又人感兴趣的话，可以加我的QQ
QQ：514593926
请注明jfreechart
如果解决了小弟再加分，真的等的急了！
再不做好客户要发飙了！

Answer 8

就是少包明天你在http://download.csdn.net/source/609446 
下就行了,只是不了解jf还有这么一堆包.

Answer 9

version is not correct.