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			JFreeChat四種圖表的繪制例程
		
          
		1.平面餅圖
          

          

          
Servlet代碼:
          

          package com.sitinspring.action;
          

          
          import java.awt.Color;
          
          import java.awt.Font;
          
          import java.util.Hashtable;
          
          import java.util.Map;
          

          
          import javax.servlet.RequestDispatcher;
          
          import javax.servlet.ServletException;
          
          import javax.servlet.http.HttpServlet;
          
          import javax.servlet.http.HttpServletRequest;
          
          import javax.servlet.http.HttpServletResponse;
          

          
          import org.jfree.chart.ChartFactory;
          
          import org.jfree.chart.JFreeChart;
          
          import org.jfree.chart.servlet.ServletUtilities;
          
          import org.jfree.chart.title.TextTitle;
          
          import org.jfree.data.general.DefaultKeyedValuesDataset;
          

          
          /**
          
 * 用于創(chuàng)建餅圖的Servlet
          
 * 
          
 *           @author sitinspring
          
 * 
          
 * @date 2008-2-12
          
           */
          
          public class PieChartServlet extends HttpServlet {
          
              private static final long serialVersionUID = 56890894234786L;
          

          
              public void doPost(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        request.setCharacterEncoding(          "UTF-8");
          

          
        Map          <String,Integer> ht=new Hashtable<String,Integer>();
          
        ht.put(          "美國", 139800);
          
        ht.put(          "日本", 52900);
          
        ht.put(          "德國", 32800);
          
        ht.put(          "中國", 30100);
          
        ht.put(          "英國", 25700);
          
        ht.put(          "法國", 25200);
          
        ht.put(          "意大利", 20900);
          
        ht.put(          "西班牙", 14100);
          
        ht.put(          "加拿大", 13600);
          
        ht.put(          "俄羅斯", 11400);
          
        
          
                  float sum=0;
          
                  for(Integer i:ht.values()){
          
            sum          +=i;
          
        }
          
        
          
                  // 設(shè)定數(shù)據(jù)源
          
                  DefaultKeyedValuesDataset piedata = new DefaultKeyedValuesDataset();
          

          
                  // 向數(shù)據(jù)源中插值，第一個參數(shù)為名稱，第二個參數(shù)是double數(shù)
          
                  for(String nation:ht.keySet()){
          
            piedata.setValue(nation, ((          float)ht.get(nation))/sum*100);
          
        }
          
        
          
                  // 使用ChartFactory來創(chuàng)建JFreeChart
          
                  JFreeChart chart = ChartFactory.createPieChart("2007世界總GDP排名", piedata, true,
          
                          true, true);
          
        
          
                  // 設(shè)定圖片標(biāo)題
          
                  chart.setTitle(new TextTitle("2007世界總GDP排名", new Font("隸書", Font.ITALIC, 15)));
          

          
                  // 設(shè)定背景
          
                  chart.setBackgroundPaint(Color.white);
          
        
          
                  // 創(chuàng)建文件并將圖片地址傳遞到頁面
          
                  String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300,
          
                          null, request.getSession());
          
        String graphURL           = request.getContextPath()
          
                          + "/displayChart?filename=" + filename;
          
        request.setAttribute(          "graphURL", graphURL);
          
        
          
                  // 標(biāo)識
          
                  request.setAttribute("msg", "餅圖效果");
          

          
                  // 頁面轉(zhuǎn)向
          
                  RequestDispatcher dispatcher = request
          
                .getRequestDispatcher(          "/web/page/chart.jsp");
          
        dispatcher.forward(request, response);
          
                  return;
          
    }
          

          
              public void doGet(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        doPost(request, response);
          
    }
          
}
          

          

          
頁面代碼:
          

          <%@ page contentType="text/html; charset=UTF-8"%>
          
          <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
          
          <html>
          
          <head>
          
          <title>JFreeChart圖表效果</title>
          
          <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
          
          <link rel="stylesheet" rev="stylesheet" href="web/css/style.css"
          
    type          ="text/css" />
          
          </head>
          

          
          <body>
          
              <div id="bodyDiv">
          
                  <div id="header">
          
                      <jsp:include page="/web/page/branch/header.jsp"/>
          
                  </div>
          
                  <div id="sidebar">
          
                      <jsp:include page="/web/page/branch/sidebar.jsp"/>
          
                  </div>
          
                  <div id="content">
          
                      <table border=0 align="center">
          
                      <%                
          
                out.print(          "<tr>");
          
                          String graphURL=(String)request.getAttribute("graphURL");            
          
                out.print(          "<td colspan=4 align=\"center\"><img src=\""+graphURL+"\"/></td>");
          
                out.print(          "</tr>");                
          
                      %>
          
                      </table>
          
                  </div>
          
                  <div id="footer">
          
                      <jsp:include page="/web/page/branch/footer.jsp"/>
          
                  </div>
          
              </div>
          
          </body>
          
          </html>
          

          
2.3d餅圖
          

          

          
Servlet代碼:
          

          package com.sitinspring.action;
          

          
          import java.awt.Color;
          
          import java.awt.Font;
          
          import java.util.Hashtable;
          
          import java.util.Map;
          

          
          import javax.servlet.RequestDispatcher;
          
          import javax.servlet.ServletException;
          
          import javax.servlet.http.HttpServlet;
          
          import javax.servlet.http.HttpServletRequest;
          
          import javax.servlet.http.HttpServletResponse;
          

          
          import org.jfree.chart.ChartFactory;
          
          import org.jfree.chart.JFreeChart;
          
          import org.jfree.chart.servlet.ServletUtilities;
          
          import org.jfree.chart.title.TextTitle;
          
          import org.jfree.data.general.DefaultKeyedValuesDataset;
          

          
          /**
          
 * 用于創(chuàng)建3D餅圖的Servlet
          
 * 
          
 *           @author sitinspring
          
 * 
          
 * @date 2008-2-12
          
           */
          
          public class Pie3DChartServlet extends HttpServlet {
          
              private static final long serialVersionUID = 56890894234786L;
          

          
              public void doPost(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        request.setCharacterEncoding(          "UTF-8");
          

          
        Map          <String,Integer> ht=new Hashtable<String,Integer>();
          
        ht.put(          "美國", 139800);
          
        ht.put(          "日本", 52900);
          
        ht.put(          "德國", 32800);
          
        ht.put(          "中國", 30100);
          
        ht.put(          "英國", 25700);
          
        ht.put(          "法國", 25200);
          
        ht.put(          "意大利", 20900);
          
        ht.put(          "西班牙", 14100);
          
        ht.put(          "加拿大", 13600);
          
        ht.put(          "俄羅斯", 11400);
          
        
          
                  float sum=0;
          
                  for(Integer i:ht.values()){
          
            sum          +=i;
          
        }
          
        
          
                  // 設(shè)定數(shù)據(jù)源
          
                  DefaultKeyedValuesDataset piedata = new DefaultKeyedValuesDataset();
          

          
                  // 向數(shù)據(jù)源中插值，第一個參數(shù)為名稱，第二個參數(shù)是double數(shù)
          
                  for(String nation:ht.keySet()){
          
            piedata.setValue(nation, ((          float)ht.get(nation))/sum*100);
          
        }
          
        
          
                  // 使用ChartFactory來創(chuàng)建JFreeChart
          
                  JFreeChart chart = ChartFactory.createPieChart3D("2007世界總GDP排名", piedata, true,
          
                          true, true);
          
        
          
                  // 設(shè)定圖片標(biāo)題
          
                  chart.setTitle(new TextTitle("2007世界總GDP排名", new Font("隸書", Font.ITALIC, 15)));
          

          
                  // 設(shè)定背景
          
                  chart.setBackgroundPaint(Color.white);
          
        
          
                  // 創(chuàng)建文件并將圖片地址傳遞到頁面
          
                  String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300,
          
                          null, request.getSession());
          
        String graphURL           = request.getContextPath()
          
                          + "/displayChart?filename=" + filename;
          
        request.setAttribute(          "graphURL", graphURL);
          
        
          
                  // 標(biāo)識
          
                  request.setAttribute("msg", "3D餅圖效果");
          

          
                  // 頁面轉(zhuǎn)向
          
                  RequestDispatcher dispatcher = request
          
                .getRequestDispatcher(          "/web/page/chart.jsp");
          
        dispatcher.forward(request, response);
          
                  return;
          
    }
          

          
              public void doGet(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        doPost(request, response);
          
    }
          
}
          

          

          
3.折線圖
          

          

          
Servlet代碼:
          

          package com.sitinspring.action;
          

          
          import java.util.LinkedHashMap;
          
          import java.util.Map;
          

          
          import javax.servlet.RequestDispatcher;
          
          import javax.servlet.ServletException;
          
          import javax.servlet.http.HttpServlet;
          
          import javax.servlet.http.HttpServletRequest;
          
          import javax.servlet.http.HttpServletResponse;
          

          
          import org.jfree.chart.ChartFactory;
          
          import org.jfree.chart.JFreeChart;
          
          import org.jfree.chart.servlet.ServletUtilities;
          
          import org.jfree.data.time.Day;
          
          import org.jfree.data.time.TimeSeries;
          
          import org.jfree.data.time.TimeSeriesCollection;
          
          import org.jfree.data.time.TimeSeriesDataItem;
          

          
          /**
          
 * 用于創(chuàng)建折線圖的Servlet
          
 * 
          
 *           @author sitinspring
          
 * 
          
 * @date 2008-2-12
          
           */
          
          public class CurveChartServlet extends HttpServlet {
          
              private static final long serialVersionUID = 56890894234786L;
          

          
              public void doPost(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        request.setCharacterEncoding(          "UTF-8");
          

          
                  // 曲線圖標(biāo)題
          
                  String title = "趨勢分析";
          
                  // 曲線圖X軸提示
          
                  String domain = "年份";
          
                  // 曲線圖Y軸提示
          
                  String range = "GDP";
          

          
                  // 創(chuàng)建時間數(shù)據(jù)源，每一個TimeSeries在圖上是一條曲線
          
                  TimeSeries chinaTs = new TimeSeries("中國");
          
        Map          <Integer, Integer> chinaht = new LinkedHashMap<Integer, Integer>();
          
        chinaht.put(          2002, 22100);
          
        chinaht.put(          2003, 14100);
          
        chinaht.put(          2004, 27100);
          
        chinaht.put(          2005, 38100);
          
        chinaht.put(          2006, 29000);
          
        chinaht.put(          2007, 90100);
          
        
          
                  for (Integer i:chinaht.keySet()) {
          
            chinaTs.add(          new TimeSeriesDataItem(new Day(1, 1, i),new Double(chinaht.get(i))));            
          
        }
          

          
                  // 創(chuàng)建時間數(shù)據(jù)源，每一個TimeSeries在圖上是一條曲線
          
                  TimeSeries japanTs = new TimeSeries("日本");
          
        Map          <Integer, Integer> japanht = new LinkedHashMap<Integer, Integer>();
          
        japanht.put(          2000, 43900);
          
        japanht.put(          2003, 63500);
          
        japanht.put(          2004, 43400);
          
        japanht.put(          2005, 63200);
          
        japanht.put(          2006, 53100);
          
        japanht.put(          2007, 32900);
          
        
          
                  for (Integer i:japanht.keySet()) {
          
            japanTs.add(          new TimeSeriesDataItem(new Day(1, 1, i),new Double(japanht.get(i))));            
          
        }
          

          
                  // 創(chuàng)建時間數(shù)據(jù)源，每一個TimeSeries在圖上是一條曲線
          
                  TimeSeries usaTs = new TimeSeries("美國");
          
        Map          <Integer, Integer> usaht = new LinkedHashMap<Integer, Integer>();
          
        usaht.put(          2001, 100000);
          
        usaht.put(          2003, 159800);
          
        usaht.put(          2004, 109700);
          
        usaht.put(          2005, 129600);
          
        usaht.put(          2006, 9800);
          
        usaht.put(          2007, 149800);
          
        
          
                  for (Integer i:usaht.keySet()) {
          
            usaTs.add(          new TimeSeriesDataItem(new Day(1, 1, i),new Double(usaht.get(i))));            
          
        }
          
        
          
                  // 時間曲線數(shù)據(jù)集合
          
                  TimeSeriesCollection dataset = new TimeSeriesCollection();
          
        dataset.addSeries(chinaTs);
          
        dataset.addSeries(japanTs);
          
        dataset.addSeries(usaTs);
          

          
                  // 時間曲線元素
          
                  JFreeChart chart = ChartFactory.createTimeSeriesChart(title, domain,
          
                range, dataset,           true, true, false);
          

          
                  // 創(chuàng)建文件并將圖片地址傳遞到頁面
          
                  String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300,
          
                          null, request.getSession());
          
        String graphURL           = request.getContextPath() + "/displayChart?filename="
          
                          + filename;
          
        request.setAttribute(          "graphURL", graphURL);
          

          
                  // 標(biāo)識
          
                  request.setAttribute("msg", "折線圖效果");
          

          
                  // 頁面轉(zhuǎn)向
          
                  RequestDispatcher dispatcher = request
          
                .getRequestDispatcher(          "/web/page/chart.jsp");
          
        dispatcher.forward(request, response);
          
                  return;
          
    }
          

          
              public void doGet(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        doPost(request, response);
          
    }
          
}
          

          

          
4.柱圖
          

          

          
Servlet代碼:
          

          package com.sitinspring.action;
          

          
          import java.awt.Color;
          
          import java.awt.Font;
          
          import java.util.Hashtable;
          
          import java.util.Map;
          

          
          import javax.servlet.RequestDispatcher;
          
          import javax.servlet.ServletException;
          
          import javax.servlet.http.HttpServlet;
          
          import javax.servlet.http.HttpServletRequest;
          
          import javax.servlet.http.HttpServletResponse;
          

          
          import org.jfree.chart.ChartFactory;
          
          import org.jfree.chart.JFreeChart;
          
          import org.jfree.chart.plot.PlotOrientation;
          
          import org.jfree.chart.servlet.ServletUtilities;
          
          import org.jfree.chart.title.TextTitle;
          
          import org.jfree.data.category.DefaultCategoryDataset;
          

          
          /**
          
 * 用于創(chuàng)建柱圖的Servlet
          
 * 
          
 *           @author sitinspring
          
 * 
          
 * @date 2008-2-12
          
           */
          
          public class ColumnChartServlet extends HttpServlet {
          
              private static final long serialVersionUID = 56890894234786L;
          

          
              public void doPost(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        request.setCharacterEncoding(          "UTF-8");
          

          
        Map          <String,Integer> ht=new Hashtable<String,Integer>();
          
        ht.put(          "美國", 139800);
          
        ht.put(          "日本", 52900);
          
        ht.put(          "德國", 32800);
          
        ht.put(          "中國", 30100);
          
        ht.put(          "英國", 25700);
          
        ht.put(          "法國", 25200);
          
        ht.put(          "意大利", 20900);
          
        ht.put(          "西班牙", 14100);
          
        ht.put(          "加拿大", 13600);
          
        ht.put(          "俄羅斯", 11400);
          
        
          
                  float sum=0;
          
                  for(Integer i:ht.values()){
          
            sum          +=i;
          
        }
          
        
          
                  // 設(shè)定數(shù)據(jù)源
          
                  DefaultCategoryDataset dataset = new DefaultCategoryDataset();
          

          
                  // 向數(shù)據(jù)源中插值，第一個參數(shù)為名稱，第二個參數(shù)是double數(shù)
          
                  int i=0;
          
                  for(String nation:ht.keySet()){
          
            i          ++;
          
            dataset.addValue((          float)ht.get(nation), String.valueOf(i), nation);
          
        }
          
        
          
                  // 使用ChartFactory來創(chuàng)建JFreeChart
          
                  JFreeChart chart = ChartFactory.createBarChart3D("收支統(tǒng)計圖", "國家",
          
                          "數(shù)額", dataset, PlotOrientation.VERTICAL, false, false,
          
                          false);
          
        
          
                  // 設(shè)定圖片標(biāo)題
          
                  chart.setTitle(new TextTitle("2007世界總GDP排名", new Font("隸書", Font.ITALIC, 15)));
          

          
                  // 設(shè)定背景
          
                  chart.setBackgroundPaint(Color.white);
          
        
          
                  // 創(chuàng)建文件并將圖片地址傳遞到頁面
          
                  String filename = ServletUtilities.saveChartAsPNG(chart, 500, 300,
          
                          null, request.getSession());
          
        String graphURL           = request.getContextPath()
          
                          + "/displayChart?filename=" + filename;
          
        request.setAttribute(          "graphURL", graphURL);
          
        
          
                  // 標(biāo)識
          
                  request.setAttribute("msg", "3D柱圖效果");
          

          
                  // 頁面轉(zhuǎn)向
          
                  RequestDispatcher dispatcher = request
          
                .getRequestDispatcher(          "/web/page/chart.jsp");
          
        dispatcher.forward(request, response);
          
                  return;
          
    }
          

          
              public void doGet(HttpServletRequest request, HttpServletResponse response)
          
                      throws ServletException, java.io.IOException {
          
        doPost(request, response);
          
    }
          
}
          

          

          

          
例程下載(請在lib中加入jcommon-1.0.8.jar和jfreechart-1.0.6.jar):
          
http://www.aygfsteel.com/Files/sitinspring/JFreeChartSample20080408130142.rar 

		
          
			posted on 2008-04-08 13:00 sitinspring 閱讀(3604) 評論(6)  編輯  收藏  所屬分類: Web開發(fā) 
		
          
	
          







          
	    
    


          

          評論
          
	
	
			
          
				# re: JFreeChat四種圖表的繪制例程
					
						2008-05-30 13:46
					
				we
			
          
			
          
				不是時間曲線圖如何制作？能不能些個例子謝謝！  回復(fù)  更多評論
				  
			
          
		
			
          
				# re: JFreeChat四種圖表的繪制例程
					
						2010-08-09 13:43
					
				zhangnian
			
          
			
          
				我按你這樣寫，為什么圖片不顯示  回復(fù)  更多評論
				  
			
          
		
			
          
				# re: JFreeChat四種圖表的繪制例程
					
						2010-08-09 13:44
					
				zhangnian
			
          
			
          
				可以把那個曲線圖給我份完整的代碼嗎，謝謝！714378662@QQ.com  回復(fù)  更多評論
				  
			
          
		
			
          
				# re: JFreeChat四種圖表的繪制例程
					
						2010-08-09 14:06
					
				何楊
			
          
			
          
				http://www.aygfsteel.com/Files/sitinspring/JFreeChartSample20080408130142.rar  回復(fù)  更多評論
				  
			
          
		
			
          
				# re: JFreeChat四種圖表的繪制例程[未登錄]
					
						2010-08-11 11:55
					
				楊超
			
          
			
          
				@zhangnian

          在你的web.xml 里加上：  回復(fù)  更多評論
				  
			
          
		
			
          
				# re: JFreeChat四種圖表的繪制例程[未登錄]
					
						2010-08-11 11:55
					
				楊超
			
          
			
          
				

          	<servlet>

          		<servlet-name>DisplayChart</servlet-name>

          		<servlet-class>

          			org.jfree.chart.servlet.DisplayChart

          		</servlet-class>

          	</servlet>

          	<servlet-mapping>

          		<servlet-name>DisplayChart</servlet-name>

          		<url-pattern>/displayChart</url-pattern>

          	</servlet-mapping>  回復(fù)  更多評論
				  
			
          
		

          




          








          

				
			
          
			
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