bonjour,
voila depuis un bon moment que je cherche à résoudre ce problème
je veux ,à partir d'une page web, obtenir une courbe avec Jfreechart
est ce que je dois écrire mon code (pour le graph) dans la JSP ou Servlet

RQ:
le graphe sera dans un fenetre indépendante (non une page web) dès que je fais une selection dans ma page web

voici mon code qui e permet d'avoir un Line Chart
Code : Sélectionner tout - Visualiser dans une fenêtre à part
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
 
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
//import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
//import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RectangleInsets;
import org.jfree.ui.RefineryUtilities;
 
//import java.awt.BasicStroke;
import java.awt.Color;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
//import java.text.DecimalFormat;
 
public class LineChartTests extends ApplicationFrame {
	/**
         * 
         */
	private static final long serialVersionUID = 1L;
 
	public LineChartTests(String title) {
	super(title);
		CategoryDataset dataset = createDataset();
		CategoryDataset dataset1 = createDataset1();
		CategoryDataset dataset2 = createDataset2();
			JFreeChart chart = createChart(dataset,dataset1,dataset2);
 
			// add the chart to a panel...
			ChartPanel chartPanel = new ChartPanel(chart);
 
			chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
			setContentPane(chartPanel);
 
	}
	private String url= "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=C:/pfe.mdb";
	private String user = "user";
	private String pass = "pass";
	private String []temps = new String [100];
	private float[] Traf= new float [100];
	private float[] SRVLINES= new float [100];
	private float[] CULC= new float [100];
	private int y=0;
 
	private CategoryDataset createDataset() {
		// row keys...
		String series1 = "TGRP:TRAFCARR";
	//	String series2 = "TGRP:SRVLINES";
	//	String series3 = "TGRP:CULC";
 
//		--connection à la base donnée
		try {
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") ;
			}
			catch(ClassNotFoundException e) {
			System.err.println("Erreur de chargement du driver : + e") ;
			}
			try {
				Connection connect = DriverManager.getConnection(url,user,pass) ;
				Statement statement = connect.createStatement() ;
				String Str="2007/05/26";
				String Str01="2007/05/21";
				String Str02="MSC01:TCLIP1";
 
 
 
	       		String query = "select \"TGRP:TRAFCARR\",Time from TGRPDetailed where (Date=\'"+Str+"\'  and Object=\'"+Str02+"\') ";		       		
	       		//String query = "select \"TGRP:TRAFCARR\",Time from TGRPDetailed where (Date=\'"+Str+"\' and Object=\'"+Str02+"\') ";
	       		ResultSet resultset = statement.executeQuery(query);				
				while (resultset.next()!= false){				 	
					 String Str1 = resultset.getString(1);
 
					 String Str2 = resultset.getString(2);
					 if (Str1.indexOf("-")==-1){
					 Traf[y]= Float.parseFloat(Str1);
					 }
 
 
					 temps[y]=Str2;
					 y++;
						} 	
				System.out.println(y);
			connect.close();// fermuture de la connection à la BD
				}
			catch(SQLException sqle) {
			System.err.println("Erreur lors de la connexion : " + sqle) ;
			}
 
 
 
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		for (int i=0;i<y;i++){
			dataset.addValue(Traf[i], series1, temps[i]);
		//	dataset.addValue(SRVLINES[i], series2, temps[i]);
		//	dataset.addValue(CULC[i], series3, temps[i]);
		}
 
 
		return dataset;
	}
	private CategoryDataset createDataset1() {
		// row keys...
		//String series1 = "TGRP:TRAFCARR";
		String series2 = "TGRP:SRVLINES";
	//	String series3 = "TGRP:CULC";
 
//		--connection à la base donnée
		try {
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") ;
			}
			catch(ClassNotFoundException e) {
			System.err.println("Erreur de chargement du driver : + e") ;
			}
			try {
				Connection connect = DriverManager.getConnection(url,user,pass) ;
				Statement statement = connect.createStatement() ;
				String Str="2007/05/26";
				String Str01="2007/05/21";
				String Str02="MSC01:TCLIP1";
 
				y=0;
 
	       		String query = "select \"TGRP:SRVLINES\",Time from TGRPDetailed where (Date=\'"+Str+"\'  and Object=\'"+Str02+"\') ";		       		
	       		//String query = "select \"TGRP:TRAFCARR\",Time from TGRPDetailed where (Date=\'"+Str+"\' and Object=\'"+Str02+"\') ";
	       		ResultSet resultset = statement.executeQuery(query);				
				while (resultset.next()!= false){				 	
					 String Str1 = resultset.getString(1);
 
					 String Str2 = resultset.getString(2);
 
					 if (Str1.indexOf("-")==-1){
					 SRVLINES[y]= Float.parseFloat(Str1);
					 }
 
					// temps[y]=Str2;
					 y++;
						} 	
				System.out.println(y);
			connect.close();// fermuture de la connection à la BD
				}
			catch(SQLException sqle) {
			System.err.println("Erreur lors de la connexion : " + sqle) ;
			}
 
 
 
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		for (int i=0;i<y;i++){
		//	dataset.addValue(Traf[i], series1, temps[i]);
			dataset.addValue(SRVLINES[i], series2, temps[i]);
		//	dataset.addValue(CULC[i], series3, temps[i]);
		}
 
 
		return dataset;
	}
	private CategoryDataset createDataset2() {
		// row keys...
		//String series1 = "TGRP:TRAFCARR";
		//String series2 = "TGRP:SRVLINES";
		String series3 = "TGRP:CULC";
 
//		--connection à la base donnée
		try {
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver") ;
			}
			catch(ClassNotFoundException e) {
			System.err.println("Erreur de chargement du driver : + e") ;
			}
			try {
				Connection connect = DriverManager.getConnection(url,user,pass) ;
				Statement statement = connect.createStatement() ;
				String Str="2007/05/26";
				String Str01="2007/05/21";
				String Str02="MSC01:TCLIP1";
 
				y=0;
 
	       		String query = "select \"TGRP:CULC\",Time from TGRPDetailed where (Date=\'"+Str+"\'  and Object=\'"+Str02+"\') ";		       		
	       		//String query = "select \"TGRP:TRAFCARR\",Time from TGRPDetailed where (Date=\'"+Str+"\' and Object=\'"+Str02+"\') ";
	       		ResultSet resultset = statement.executeQuery(query);				
				while (resultset.next()!= false){				 	
					 String Str1 = resultset.getString(1);
 
					 String Str2 = resultset.getString(2);
 
					 if (Str1.indexOf("-")==-1){
					 CULC[y]= Float.parseFloat(Str1);
					 }
 
					// temps[y]=Str2;
					 y++;
						} 	
				System.out.println(y);
			connect.close();// fermuture de la connection à la BD
				}
			catch(SQLException sqle) {
			System.err.println("Erreur lors de la connexion : " + sqle) ;
			}
 
 
 
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		for (int i=0;i<y;i++){
		//	dataset.addValue(Traf[i], series1, temps[i]);
		//	dataset.addValue(SRVLINES[i], series2, temps[i]);
			dataset.addValue(CULC[i], series3, temps[i]);
		}
 
 
		return dataset;
	}
	private JFreeChart createChart(CategoryDataset dataset, CategoryDataset dataset12, CategoryDataset dataset22) {
		// create the chart...
		JFreeChart jfreechart = ChartFactory.createLineChart(
				"Line Chart Demo 1", // chart title
				"Time", // domain axis label
				"Value", // range axis label
				dataset, // data
				//dataset12, // data
				//dataset22, // data
				PlotOrientation.VERTICAL, // orientation
				true, // include legend
				true, // tooltips
				false // urls
		);
 
		 jfreechart.setBackgroundPaint(Color.white);
 
	       CategoryPlot categoryplot = (CategoryPlot)jfreechart.getPlot();
	       categoryplot.setOrientation(PlotOrientation.VERTICAL);
	       categoryplot.setBackgroundPaint(Color.lightGray);
	       categoryplot.setDomainGridlinePaint(Color.white);
	       categoryplot.setRangeGridlinePaint(Color.white);
	       categoryplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));
	       categoryplot.getRangeAxis().setFixedDimension(15D);
 
	       LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer) categoryplot.getRenderer() ;
	       lineandshaperenderer.setSeriesPaint(0, Color.black);
	       categoryplot.setRenderer(0, lineandshaperenderer);
 
	       CategoryDataset dataset1 = createDataset1();
	       categoryplot.setDataset(1,dataset1) ;
	       categoryplot.mapDatasetToRangeAxis(1, 1);
	       //LineAndShapeRenderer lineandshaperenderer1 = new LineAndShapeRenderer();
	       LineAndShapeRenderer lineandshaperenderer1 = new LineAndShapeRenderer(true,false);
	       lineandshaperenderer1.setSeriesPaint(1, Color.red);
	       categoryplot.setRenderer(1, lineandshaperenderer1);
	       NumberAxis numberaxis = new NumberAxis("TGRP:SRVLINES");
	       numberaxis.setFixedDimension(10D);
	       numberaxis.setAutoRangeIncludesZero(false);
	       numberaxis.setLabelPaint(Color.red);
	       numberaxis.setTickLabelPaint(Color.red);
	       categoryplot.setRangeAxis(1, numberaxis);
	       categoryplot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_RIGHT);
//StandardXYItemRenderer standardxyitemrenderer1 = new StandardXYItemRenderer();
	       CategoryDataset dataset2 = createDataset2();
	       categoryplot.setDataset(2,dataset2) ;
	       categoryplot.mapDatasetToRangeAxis(2, 2);
	       LineAndShapeRenderer lineandshaperenderer2 = new LineAndShapeRenderer(true,false);
	       lineandshaperenderer2.setSeriesPaint(2, Color.blue);// couleur de la courbe
	       categoryplot.setRenderer(2, lineandshaperenderer2);
	       NumberAxis numberaxis1 = new NumberAxis("TGRP:CULC");
	       numberaxis1.setLabelPaint(Color.blue);// couleur indexe de l'axe
	       numberaxis1.setTickLabelPaint(Color.blue);// couleur des value
	       categoryplot.setRangeAxis(2, numberaxis1);
	       categoryplot.setRangeAxisLocation(2, AxisLocation.BOTTOM_OR_RIGHT);
 
		return jfreechart;
		}
 
	public static void main(String[] args) {
		LineChartTests demo = new LineChartTests("Line Chart Demo");
		demo.pack();
		RefineryUtilities.centerFrameOnScreen(demo);
		demo.setVisible(true);
	}
}