关于StandardPieItemLabelGenerator类

关于StandardPieItemLabelGenerator类 [已结贴,结贴人:zr_dixuexiongying]

zr_dixuexiongying
等级:

发表于：2008-05-26 14:28:56 楼主

请教一下大家!我的程序里面导入了jfeechar的包,可是为什么却没有StandardPieItemLabelGenerator这个类,用开发工具也点不出来这个方法.
另外我导入
import org.jfree.chart.labels.StandardPieItemLabelGenerator; 报错,没有这个包,郁闷了

plot.setLabelGenerator(new StandardPieItemLabelGenerator(StandardPieItemLabelGenerator.DEFAULT_TOOLTIP_FORMAT)); //报错

plot.setToolTipGenerator(new StandardPieItemLabelGenerator()); //也报错

报错信息:

Severity and Description Path Resource Location Creation Time Id
StandardPieItemLabelGenerator cannot be resolved to a type

另外请问一下sun有没有这个包!我问我们同事是不是他们自己些的包,他也不清楚,所以只有发帖问了
import sun.security.krb5.internal.r;

源代码如下:

package com.lc.miccs.contract;

/**
* Title: sy miccs 
*
* Description: 
*
* Copyright: Copyright (c) 2006 
*
* Company: lcsoft hust 
*
* @author hz
* @version 1.0
*/
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.*;
import org.jfree.chart.title.*;
import org.jfree.chart.servlet.ServletUtilities;
import com.lc.miccs.db.TableSelect;
import java.sql.*;
import java.awt.Font;
import java.io.IOException;
import org.jfree.chart.labels.StandardPieItemLabelGenerator;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.chart.urls.StandardPieURLGenerator;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.*;
import java.util.*;
import com.lc.miccs.db.*;
public class ContractChart {
public ContractChart() {
piedata = new DefaultPieDataset();
}
PreparedStatement sql_sta = null;
Statement sta = null;
ResultSet sql_res = null;
connFactory factory=new connFactory();
DBConnect dbconn = factory.createConnect();
Connection conn = null;
public int width = 750;
public int height = 500;

String title = "2005 搜索引擎市场占有率";//数据为测试数据

DefaultPieDataset piedata = new DefaultPieDataset();

//获取累计图
public String getSum(String id) {
getDatee(id);
String title="";
if(id.equals("23"))title="沈阳地铁一号线延伸线 - 合同分类统计图";
if(id.equals("22"))title="沈阳地铁二号线 - 合同分类统计图";
if(id.equals("21"))title="沈阳地铁一号线 - 合同分类统计图";
return getChart(title);
}

public String getChart(String title) {
// piedata.setValue("Google",30);
// piedata.setValue("Baidu",40.3);
// piedata.setValue("sohu",19.6);
// piedata.setValue("msn",29.6);

//3D饼图
PiePlot3D plot = new PiePlot3D(piedata);

//设定链接 ("link.jsp","section"));//section为参数，不填写则默认为category
plot.setURLGenerator(new StandardPieURLGenerator("link.jsp","section"));

//指定图片的透明度
plot.setForegroundAlpha(0.6f);

//指定显示的饼图上圆形(false)还椭圆形(true)
plot.setCircular(false);

//显示百分比
plot.setLabelGenerator(new StandardPieItemLabelGenerator(StandardPieItemLabelGenerator.DEFAULT_TOOLTIP_FORMAT));
plot.setLegendLabelGenerator(new StandardPieItemLabelGenerator("{0}: ( {2})"));

JFreeChart chart = new JFreeChart("",JFreeChart.DEFAULT_TITLE_FONT, plot, true);
//设置图片背景色
chart.setBackgroundPaint(java.awt.Color.white);

//设置图片标题属性
Font font = new Font("黑体",Font.CENTER_BASELINE,20);
TextTitle _title = new TextTitle(title);
_title.setFont(font);
chart.setTitle(_title);
plot.setToolTipGenerator(new StandardPieItemLabelGenerator());
//把生成的图片放到临时目录
StandardEntityCollection sec = new StandardEntityCollection();
ChartRenderingInfo info = new ChartRenderingInfo(sec);

//500是图片长度，300是图片高度，session 为HttpSession对象
//String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300, info, null);

//PrintWriter pw = new PrintWriter(out);
//ChartUtilities.writeImageMap(pw, "map0", info, false);
//String graphURL = request.getContextPath() + "/servlet/DisplayChart?filename=" + filename;

String fn = "";
try {
fn = ServletUtilities.saveChartAsPNG(chart, 500, 300, info, null);
}
catch (IOException ex) {
System.out.println("getChart :" + ex.getMessage());
}
return fn;
}

//planItemID 计划项ID planTypeID计划类型ID isSum=true累计计划，false时序计划
private void getDatee(String id) {

TableSelect ts = new TableSelect();
String sql ="";
// String sql = "select t.* from (select f_ctype,f_ctname,f_count,TO_CHAR(f_sum/10000,'999G999G999G999G999G999G999G999G999G999G999D9999MI') f_sum_wan,"
// +" case when nvl(f_sum,0) =0 or nvl(f_all,0)=0 then null when round((f_sum/f_all)*100,2) <1 then '0' ¦ ¦round((f_sum/f_all)*100,2) ¦ ¦'%'"
// +" else round((f_sum/f_all)*100,2) ¦ ¦'%' end f_stat "
// + " from vw_ctrsumbytype where F_MPID=21 )t left join cp_contracttype a on t.f_ctype = a.f_ctcode order by a.f_index";
if(id.equals(""))
{
sql = "select f_ctname,round(f_sum/10000,4) f_sum_wan"
+ " from vw_ctrsumbytype ";
}else{
sql = "select f_ctname,round(f_sum/10000,4) f_sum_wan"
+ " from vw_ctrsumbytype where F_MPID= "+id;
}

try {
ResultSet rs = ts.query(sql);
while (rs.next()) {
// System.out.println(sql+":@@@@@@@@@@@@@@@@@@@@");
String F_CTNAME = rs.getString("F_CTNAME");
double F_SUM_WAN = rs.getDouble("F_SUM_WAN");
piedata.setValue(F_CTNAME,F_SUM_WAN);
}
}
catch (SQLException ex) {

}
finally {
ts.closeQuery();
}
}

}

问题点数：20 回复次数：3 修改删除举报引用回复