使用 jfreechart 生成 曲线、柱状图、饼状图、分布图 展示到JSP

时间:2022-08-29 12:32:06

虽然现在JS做报表和图形展示已经非常普遍和漂亮了,但是不能忽略有jfreechart 这样一种东西!

这些翻阅资料,在看以前写的示例时发现了关于jfreechart 的简单示例,不管怎样发上来分享一下!

使用 jfreechart 生成 曲线、柱状图、饼状图、分布图 展示到JSP

这个示例使用JSP和Servlet做后台和前台展示,下面有源代码可以直接运行!

生产线型趋势图:

  1. package com.xidian.servlet;
  2. import java.awt.Color;
  3. import java.awt.Font;
  4. import java.io.*;
  5. import java.text.SimpleDateFormat;
  6. import javax.servlet.ServletException;
  7. import javax.servlet.http.HttpServlet;
  8. import javax.servlet.http.HttpServletRequest;
  9. import javax.servlet.http.HttpServletResponse;
  10. import org.jfree.chart.*;
  11. import org.jfree.chart.axis.DateAxis;
  12. import org.jfree.chart.axis.ValueAxis;
  13. import org.jfree.chart.plot.XYPlot;
  14. import org.jfree.chart.renderer.xy.XYItemRenderer;
  15. import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
  16. import org.jfree.chart.title.TextTitle;
  17. import org.jfree.data.time.Day;
  18. import org.jfree.data.time.TimeSeries;
  19. import org.jfree.data.time.TimeSeriesCollection;
  20. import org.jfree.data.xy.XYDataset;
  21. /**
  22. * 生产线型趋势图
  23. * @说明
  24. * @author cuisuqiang
  25. * @version 1.0
  26. * @since
  27. */
  28. @SuppressWarnings("serial")
  29. public class LineServlet extends HttpServlet {
  30. @SuppressWarnings("deprecation")
  31. @Override
  32. protected void service(HttpServletRequest request,
  33. HttpServletResponse response) throws ServletException, IOException {
  34. response.setContentType("text/html");
  35. // 在Mysql中使用 select
  36. // year(accessdate),month(accessdate),day(accessdate),count(*)
  37. // 其中accessdate 是一个date类型的时间
  38. // 时间序列对象集合
  39. TimeSeriesCollection chartTime = new TimeSeriesCollection();
  40. // 时间序列对象,第1个参数表示时间序列的名字,第2个参数是时间类型,这里为天
  41. // 该对象用于保存前count天每天的访问次数
  42. TimeSeries timeSeries = new TimeSeries("日访问", Day.class);
  43. // 为了演示,直接拼装数据
  44. // Day的组装格式是day-month-year 访问次数
  45. timeSeries.add(new Day(1, 1, 2010), 50);
  46. timeSeries.add(new Day(2, 1, 2010), 47);
  47. timeSeries.add(new Day(3, 1, 2010), 82);
  48. timeSeries.add(new Day(4, 1, 2010), 95);
  49. timeSeries.add(new Day(5, 1, 2010), 104);
  50. timeSeries.add(new Day(6, 1, 2010), 425);
  51. chartTime.addSeries(timeSeries);
  52. XYDataset date = chartTime;
  53. try {
  54. // 使用ChartFactory来创建时间序列的图表对象
  55. JFreeChart chart = ChartFactory.createTimeSeriesChart(
  56. "网站每天访问统计", // 图形标题
  57. "日期", // X轴说明
  58. "访问量", // Y轴说明
  59. date, // 数据
  60. true, // 是否创建图例
  61. true, // 是否生成Tooltips
  62. false // 是否生产URL链接
  63. );
  64. // 设置整个图片的背景色
  65. chart.setBackgroundPaint(Color.PINK);
  66. // 设置图片有边框
  67. chart.setBorderVisible(true);
  68. // 获得图表区域对象
  69. XYPlot xyPlot = (XYPlot) chart.getPlot();
  70. // 设置报表区域的背景色
  71. xyPlot.setBackgroundPaint(Color.lightGray);
  72. // 设置横 纵坐标网格颜色
  73. xyPlot.setDomainGridlinePaint(Color.GREEN);
  74. xyPlot.setRangeGridlinePaint(Color.GREEN);
  75. // 设置横、纵坐标交叉线是否显示
  76. xyPlot.setDomainCrosshairVisible(true);
  77. xyPlot.setRangeCrosshairVisible(true);
  78. // 获得数据点(X,Y)的render,负责描绘数据点
  79. XYItemRenderer xyItemRenderer = xyPlot.getRenderer();
  80. if (xyItemRenderer instanceof XYLineAndShapeRenderer) {
  81. XYLineAndShapeRenderer xyLineAndShapeRenderer = (XYLineAndShapeRenderer) xyItemRenderer;
  82. xyLineAndShapeRenderer.setShapesVisible(true); // 数据点可见
  83. xyLineAndShapeRenderer.setShapesFilled(true); // 数据点是实心点
  84. xyLineAndShapeRenderer.setSeriesFillPaint(0, Color.RED); // 数据点填充为蓝色
  85. xyLineAndShapeRenderer.setUseFillPaint(true);// 将设置好的属性应用到render上
  86. }
  87. // 配置以下内容方可解决乱码问题
  88. // 配置字体
  89. Font xfont = new Font("宋体", Font.PLAIN, 12);    // X轴
  90. Font yfont = new Font("宋体", Font.PLAIN, 12);    // Y轴
  91. Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
  92. Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
  93. // 图片标题
  94. chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
  95. // 底部
  96. chart.getLegend().setItemFont(kfont);
  97. // X 轴
  98. ValueAxis domainAxis = xyPlot.getDomainAxis();
  99. domainAxis.setLabelFont(xfont);// 轴标题
  100. domainAxis.setTickLabelFont(xfont);// 轴数值
  101. domainAxis.setTickLabelPaint(Color.BLUE); // 字体颜色
  102. // Y 轴
  103. ValueAxis rangeAxis = xyPlot.getRangeAxis();
  104. rangeAxis.setLabelFont(yfont);
  105. rangeAxis.setLabelPaint(Color.BLUE); // 字体颜色
  106. rangeAxis.setTickLabelFont(yfont);
  107. // 定义坐标轴上日期显示的格式
  108. DateAxis dateAxis = (DateAxis) xyPlot.getDomainAxis();
  109. // 设置日期格式
  110. dateAxis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd"));
  111. // 向客户端输出生成的图片
  112. ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
  113. chart, 500, 300, null);
  114. } catch (Exception e) {
  115. e.printStackTrace();
  116. }
  117. }
  118. }
package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.*;
import java.text.SimpleDateFormat;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jfree.chart.*;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
/**
* 生产线型趋势图
* @说明
* @author cuisuqiang
* @version 1.0
* @since
*/
@SuppressWarnings("serial")
public class LineServlet extends HttpServlet {
@SuppressWarnings("deprecation")
@Override
protected void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
// 在Mysql中使用 select
// year(accessdate),month(accessdate),day(accessdate),count(*)
// 其中accessdate 是一个date类型的时间
// 时间序列对象集合
TimeSeriesCollection chartTime = new TimeSeriesCollection();
// 时间序列对象,第1个参数表示时间序列的名字,第2个参数是时间类型,这里为天
// 该对象用于保存前count天每天的访问次数
TimeSeries timeSeries = new TimeSeries("日访问", Day.class);
// 为了演示,直接拼装数据
// Day的组装格式是day-month-year 访问次数
timeSeries.add(new Day(1, 1, 2010), 50);
timeSeries.add(new Day(2, 1, 2010), 47);
timeSeries.add(new Day(3, 1, 2010), 82);
timeSeries.add(new Day(4, 1, 2010), 95);
timeSeries.add(new Day(5, 1, 2010), 104);
timeSeries.add(new Day(6, 1, 2010), 425);
chartTime.addSeries(timeSeries);
XYDataset date = chartTime;
try {
// 使用ChartFactory来创建时间序列的图表对象
JFreeChart chart = ChartFactory.createTimeSeriesChart(
"网站每天访问统计", // 图形标题
"日期", // X轴说明
"访问量", // Y轴说明
date, // 数据
true, // 是否创建图例
true, // 是否生成Tooltips
false // 是否生产URL链接
);
// 设置整个图片的背景色
chart.setBackgroundPaint(Color.PINK);
// 设置图片有边框
chart.setBorderVisible(true);
// 获得图表区域对象
XYPlot xyPlot = (XYPlot) chart.getPlot();
// 设置报表区域的背景色
xyPlot.setBackgroundPaint(Color.lightGray);
// 设置横 纵坐标网格颜色
xyPlot.setDomainGridlinePaint(Color.GREEN);
xyPlot.setRangeGridlinePaint(Color.GREEN);
// 设置横、纵坐标交叉线是否显示
xyPlot.setDomainCrosshairVisible(true);
xyPlot.setRangeCrosshairVisible(true);
// 获得数据点(X,Y)的render,负责描绘数据点
XYItemRenderer xyItemRenderer = xyPlot.getRenderer();
if (xyItemRenderer instanceof XYLineAndShapeRenderer) {
XYLineAndShapeRenderer xyLineAndShapeRenderer = (XYLineAndShapeRenderer) xyItemRenderer;
xyLineAndShapeRenderer.setShapesVisible(true); // 数据点可见
xyLineAndShapeRenderer.setShapesFilled(true); // 数据点是实心点
xyLineAndShapeRenderer.setSeriesFillPaint(0, Color.RED); // 数据点填充为蓝色
xyLineAndShapeRenderer.setUseFillPaint(true);// 将设置好的属性应用到render上
}
// 配置以下内容方可解决乱码问题
// 配置字体
Font xfont = new Font("宋体", Font.PLAIN, 12); // X轴
Font yfont = new Font("宋体", Font.PLAIN, 12); // Y轴
Font kfont = new Font("宋体", Font.PLAIN, 12); // 底部
Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
// 图片标题
chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
// 底部
chart.getLegend().setItemFont(kfont);
// X 轴
ValueAxis domainAxis = xyPlot.getDomainAxis();
domainAxis.setLabelFont(xfont);// 轴标题
domainAxis.setTickLabelFont(xfont);// 轴数值
domainAxis.setTickLabelPaint(Color.BLUE); // 字体颜色
// Y 轴
ValueAxis rangeAxis = xyPlot.getRangeAxis();
rangeAxis.setLabelFont(yfont);
rangeAxis.setLabelPaint(Color.BLUE); // 字体颜色
rangeAxis.setTickLabelFont(yfont);
// 定义坐标轴上日期显示的格式
DateAxis dateAxis = (DateAxis) xyPlot.getDomainAxis();
// 设置日期格式
dateAxis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd"));
// 向客户端输出生成的图片
ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
chart, 500, 300, null);
} catch (Exception e) {
e.printStackTrace();
}
}
}

生产柱状图:

  1. package com.xidian.servlet;
  2. import java.awt.Color;
  3. import java.awt.Font;
  4. import java.io.IOException;
  5. import javax.servlet.ServletException;
  6. import javax.servlet.http.HttpServlet;
  7. import javax.servlet.http.HttpServletRequest;
  8. import javax.servlet.http.HttpServletResponse;
  9. import org.jfree.chart.ChartFactory;
  10. import org.jfree.chart.ChartUtilities;
  11. import org.jfree.chart.JFreeChart;
  12. import org.jfree.chart.axis.CategoryAxis;
  13. import org.jfree.chart.axis.NumberAxis;
  14. import org.jfree.chart.plot.CategoryPlot;
  15. import org.jfree.chart.plot.PlotOrientation;
  16. import org.jfree.chart.renderer.category.BarRenderer;
  17. import org.jfree.chart.title.TextTitle;
  18. import org.jfree.data.category.DefaultCategoryDataset;
  19. /**
  20. * 生产柱状图
  21. * @说明
  22. * @author cuisuqiang
  23. * @version 1.0
  24. * @since
  25. */
  26. @SuppressWarnings("serial")
  27. public class PillarServlet extends HttpServlet {
  28. @Override
  29. protected void service(HttpServletRequest request,
  30. HttpServletResponse response) throws ServletException, IOException {
  31. response.setContentType("text/html");
  32. // 使用普通数据集
  33. DefaultCategoryDataset chartDate = new DefaultCategoryDataset();
  34. // 增加测试数据,第一个参数是访问量,最后一个是时间,中间是显示用不考虑
  35. chartDate.addValue(55, "访问量", "2010-01");
  36. chartDate.addValue(65, "访问量", "2010-02");
  37. chartDate.addValue(59, "访问量", "2010-03");
  38. chartDate.addValue(156, "访问量", "2010-04");
  39. chartDate.addValue(452, "访问量", "2010-05");
  40. chartDate.addValue(359, "访问量", "2010-06");
  41. try {
  42. // 从数据库中获得数据集
  43. DefaultCategoryDataset data = chartDate;
  44. // 使用ChartFactory创建3D柱状图,不想使用3D,直接使用createBarChart
  45. JFreeChart chart = ChartFactory.createBarChart3D(
  46. "网站月访问量统计", // 图表标题
  47. "时间", // 目录轴的显示标签
  48. "访问量", // 数值轴的显示标签
  49. data, // 数据集
  50. PlotOrientation.VERTICAL, // 图表方向,此处为垂直方向
  51. // PlotOrientation.HORIZONTAL, //图表方向,此处为水平方向
  52. true, // 是否显示图例
  53. true, // 是否生成工具
  54. false // 是否生成URL链接
  55. );
  56. // 设置整个图片的背景色
  57. chart.setBackgroundPaint(Color.PINK);
  58. // 设置图片有边框
  59. chart.setBorderVisible(true);
  60. Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
  61. Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
  62. // 图片标题
  63. chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
  64. // 底部
  65. chart.getLegend().setItemFont(kfont);
  66. // 得到坐标设置字体解决乱码
  67. CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
  68. categoryplot.setDomainGridlinesVisible(true);
  69. categoryplot.setRangeCrosshairVisible(true);
  70. categoryplot.setRangeCrosshairPaint(Color.blue);
  71. NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
  72. numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
  73. BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();
  74. barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
  75. barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));
  76. CategoryAxis domainAxis = categoryplot.getDomainAxis();
  77. /*------设置X轴坐标上的文字-----------*/
  78. domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
  79. /*------设置X轴的标题文字------------*/
  80. domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
  81. /*------设置Y轴坐标上的文字-----------*/
  82. numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
  83. /*------设置Y轴的标题文字------------*/
  84. numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
  85. /*------这句代码解决了底部汉字乱码的问题-----------*/
  86. chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));
  87. // 生成图片并输出
  88. ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
  89. chart, 500, 300, null);
  90. } catch (Exception e) {
  91. e.printStackTrace();
  92. }
  93. }
  94. }
package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.IOException;
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.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset; /**
* 生产柱状图
* @说明
* @author cuisuqiang
* @version 1.0
* @since
*/
@SuppressWarnings("serial")
public class PillarServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
// 使用普通数据集
DefaultCategoryDataset chartDate = new DefaultCategoryDataset();
// 增加测试数据,第一个参数是访问量,最后一个是时间,中间是显示用不考虑
chartDate.addValue(55, "访问量", "2010-01");
chartDate.addValue(65, "访问量", "2010-02");
chartDate.addValue(59, "访问量", "2010-03");
chartDate.addValue(156, "访问量", "2010-04");
chartDate.addValue(452, "访问量", "2010-05");
chartDate.addValue(359, "访问量", "2010-06");
try {
// 从数据库中获得数据集
DefaultCategoryDataset data = chartDate; // 使用ChartFactory创建3D柱状图,不想使用3D,直接使用createBarChart
JFreeChart chart = ChartFactory.createBarChart3D(
"网站月访问量统计", // 图表标题
"时间", // 目录轴的显示标签
"访问量", // 数值轴的显示标签
data, // 数据集
PlotOrientation.VERTICAL, // 图表方向,此处为垂直方向
// PlotOrientation.HORIZONTAL, //图表方向,此处为水平方向
true, // 是否显示图例
true, // 是否生成工具
false // 是否生成URL链接
);
// 设置整个图片的背景色
chart.setBackgroundPaint(Color.PINK);
// 设置图片有边框
chart.setBorderVisible(true);
Font kfont = new Font("宋体", Font.PLAIN, 12); // 底部
Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
// 图片标题
chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
// 底部
chart.getLegend().setItemFont(kfont);
// 得到坐标设置字体解决乱码
CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
categoryplot.setDomainGridlinesVisible(true);
categoryplot.setRangeCrosshairVisible(true);
categoryplot.setRangeCrosshairPaint(Color.blue);
NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();
barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));
CategoryAxis domainAxis = categoryplot.getDomainAxis();
/*------设置X轴坐标上的文字-----------*/
domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
/*------设置X轴的标题文字------------*/
domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
/*------设置Y轴坐标上的文字-----------*/
numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
/*------设置Y轴的标题文字------------*/
numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
/*------这句代码解决了底部汉字乱码的问题-----------*/
chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));
// 生成图片并输出
ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
chart, 500, 300, null);
} catch (Exception e) {
e.printStackTrace();
}
}
}

生成饼状统计图:

  1. package com.xidian.servlet;
  2. import java.awt.Color;
  3. import java.awt.Font;
  4. import java.io.IOException;
  5. import javax.servlet.ServletException;
  6. import javax.servlet.http.HttpServlet;
  7. import javax.servlet.http.HttpServletRequest;
  8. import javax.servlet.http.HttpServletResponse;
  9. import org.jfree.chart.ChartUtilities;
  10. import org.jfree.chart.JFreeChart;
  11. import org.jfree.chart.plot.PiePlot3D;
  12. import org.jfree.chart.title.TextTitle;
  13. import org.jfree.data.general.DefaultPieDataset;
  14. /**
  15. * 生成饼状统计图
  16. * @说明
  17. * @author cuisuqiang
  18. * @version 1.0
  19. * @since
  20. */
  21. @SuppressWarnings("serial")
  22. public class CakeServlet extends HttpServlet {
  23. protected void service(HttpServletRequest request,
  24. HttpServletResponse response) throws ServletException, IOException {
  25. response.setContentType("text/html");
  26. // 默认数据类型
  27. DefaultPieDataset dataType = new DefaultPieDataset();
  28. // 数据参数 内容,数量
  29. dataType.setValue("IE6", 156);
  30. dataType.setValue("IE7", 230);
  31. dataType.setValue("IE8", 45);
  32. dataType.setValue("火狐", 640);
  33. dataType.setValue("谷歌", 245);
  34. try {
  35. DefaultPieDataset data = dataType;
  36. // 生成普通饼状图除掉 3D 即可
  37. // 生产3D饼状图
  38. PiePlot3D plot = new PiePlot3D(data);
  39. JFreeChart chart = new JFreeChart(
  40. "用户使用的浏览器类型",            // 图形标题
  41. JFreeChart.DEFAULT_TITLE_FONT, // 标题字体
  42. plot,                          // 图标标题对象
  43. true                           // 是否显示图例
  44. );
  45. // 设置整个图片的背景色
  46. chart.setBackgroundPaint(Color.PINK);
  47. // 设置图片有边框
  48. chart.setBorderVisible(true);
  49. // 配置字体
  50. Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
  51. Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
  52. // 图片标题
  53. chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
  54. // 底部
  55. chart.getLegend().setItemFont(kfont);
  56. ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
  57. chart, 500, 300, null);
  58. } catch (Exception e) {
  59. e.printStackTrace();
  60. }
  61. }
  62. }
package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.general.DefaultPieDataset;
/**
* 生成饼状统计图
* @说明
* @author cuisuqiang
* @version 1.0
* @since
*/
@SuppressWarnings("serial")
public class CakeServlet extends HttpServlet {
protected void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
// 默认数据类型
DefaultPieDataset dataType = new DefaultPieDataset();
// 数据参数 内容,数量
dataType.setValue("IE6", 156);
dataType.setValue("IE7", 230);
dataType.setValue("IE8", 45);
dataType.setValue("火狐", 640);
dataType.setValue("谷歌", 245);
try {
DefaultPieDataset data = dataType;
// 生成普通饼状图除掉 3D 即可
// 生产3D饼状图
PiePlot3D plot = new PiePlot3D(data);
JFreeChart chart = new JFreeChart(
"用户使用的浏览器类型", // 图形标题
JFreeChart.DEFAULT_TITLE_FONT, // 标题字体
plot, // 图标标题对象
true // 是否显示图例
);
// 设置整个图片的背景色
chart.setBackgroundPaint(Color.PINK);
// 设置图片有边框
chart.setBorderVisible(true);
// 配置字体
Font kfont = new Font("宋体", Font.PLAIN, 12); // 底部
Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
// 图片标题
chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
// 底部
chart.getLegend().setItemFont(kfont);
ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
chart, 500, 300, null);
} catch (Exception e) {
e.printStackTrace();
}
}
}

柱状分布统计图:

  1. package com.xidian.servlet;
  2. import java.awt.Color;
  3. import java.awt.Font;
  4. import java.io.IOException;
  5. import javax.servlet.ServletException;
  6. import javax.servlet.http.HttpServlet;
  7. import javax.servlet.http.HttpServletRequest;
  8. import javax.servlet.http.HttpServletResponse;
  9. import org.jfree.chart.ChartFactory;
  10. import org.jfree.chart.ChartUtilities;
  11. import org.jfree.chart.JFreeChart;
  12. import org.jfree.chart.axis.CategoryAxis;
  13. import org.jfree.chart.axis.NumberAxis;
  14. import org.jfree.chart.plot.CategoryPlot;
  15. import org.jfree.chart.plot.PlotOrientation;
  16. import org.jfree.chart.renderer.category.BarRenderer;
  17. import org.jfree.chart.title.TextTitle;
  18. import org.jfree.data.category.DefaultCategoryDataset;
  19. /**
  20. * 柱状分布统计图
  21. * @说明
  22. * @author cuisuqiang
  23. * @version 1.0
  24. * @since
  25. */
  26. @SuppressWarnings("serial")
  27. public class ParagraphsServlet extends HttpServlet {
  28. protected void service(HttpServletRequest request,
  29. HttpServletResponse response) throws ServletException, IOException {
  30. response.setContentType("text/html");
  31. DefaultCategoryDataset dataTime = new DefaultCategoryDataset();
  32. // 这是一组数据
  33. dataTime.addValue(52, "0-6", "2010-1-1");
  34. dataTime.addValue(86, "6-12", "2010-1-1");
  35. dataTime.addValue(126, "12-18", "2010-1-1");
  36. dataTime.addValue(42, "18-24", "2010-1-1");
  37. // 这是一组数据
  38. dataTime.addValue(452, "0-6", "2010-1-2");
  39. dataTime.addValue(96, "6-12", "2010-1-2");
  40. dataTime.addValue(254, "12-18", "2010-1-2");
  41. dataTime.addValue(126, "18-24", "2010-1-2");
  42. // 这是一组数据
  43. dataTime.addValue(256, "0-6", "2010-1-3");
  44. dataTime.addValue(86, "6-12", "2010-1-3");
  45. dataTime.addValue(365, "12-18", "2010-1-3");
  46. dataTime.addValue(24, "18-24", "2010-1-3");
  47. try {
  48. DefaultCategoryDataset data = dataTime;
  49. // 使用ChartFactory创建3D柱状图,不想使用3D,直接使用createBarChart
  50. JFreeChart chart = ChartFactory.createBarChart3D(
  51. "网站时间段访问量统计",
  52. "时间",
  53. "访问量",
  54. data,
  55. PlotOrientation.VERTICAL,
  56. true,
  57. false,
  58. false
  59. );
  60. // 设置整个图片的背景色
  61. chart.setBackgroundPaint(Color.PINK);
  62. // 设置图片有边框
  63. chart.setBorderVisible(true);
  64. Font kfont = new Font("宋体", Font.PLAIN, 12);    // 底部
  65. Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
  66. // 图片标题
  67. chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
  68. // 底部
  69. chart.getLegend().setItemFont(kfont);
  70. // 得到坐标设置字体解决乱码
  71. CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
  72. categoryplot.setDomainGridlinesVisible(true);
  73. categoryplot.setRangeCrosshairVisible(true);
  74. categoryplot.setRangeCrosshairPaint(Color.blue);
  75. NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
  76. numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
  77. BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();
  78. barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
  79. barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));
  80. CategoryAxis domainAxis = categoryplot.getDomainAxis();
  81. /*------设置X轴坐标上的文字-----------*/
  82. domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
  83. /*------设置X轴的标题文字------------*/
  84. domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
  85. /*------设置Y轴坐标上的文字-----------*/
  86. numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
  87. /*------设置Y轴的标题文字------------*/
  88. numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
  89. /*------这句代码解决了底部汉字乱码的问题-----------*/
  90. chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));
  91. ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
  92. chart, 500, 300, null);
  93. } catch (Exception es) {
  94. es.printStackTrace();
  95. }
  96. }
  97. }
package com.xidian.servlet;
import java.awt.Color;
import java.awt.Font;
import java.io.IOException;
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.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;
/**
* 柱状分布统计图
* @说明
* @author cuisuqiang
* @version 1.0
* @since
*/
@SuppressWarnings("serial")
public class ParagraphsServlet extends HttpServlet {
protected void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
DefaultCategoryDataset dataTime = new DefaultCategoryDataset();
// 这是一组数据
dataTime.addValue(52, "0-6", "2010-1-1");
dataTime.addValue(86, "6-12", "2010-1-1");
dataTime.addValue(126, "12-18", "2010-1-1");
dataTime.addValue(42, "18-24", "2010-1-1");
// 这是一组数据
dataTime.addValue(452, "0-6", "2010-1-2");
dataTime.addValue(96, "6-12", "2010-1-2");
dataTime.addValue(254, "12-18", "2010-1-2");
dataTime.addValue(126, "18-24", "2010-1-2");
// 这是一组数据
dataTime.addValue(256, "0-6", "2010-1-3");
dataTime.addValue(86, "6-12", "2010-1-3");
dataTime.addValue(365, "12-18", "2010-1-3");
dataTime.addValue(24, "18-24", "2010-1-3");
try {
DefaultCategoryDataset data = dataTime;
// 使用ChartFactory创建3D柱状图,不想使用3D,直接使用createBarChart
JFreeChart chart = ChartFactory.createBarChart3D(
"网站时间段访问量统计",
"时间",
"访问量",
data,
PlotOrientation.VERTICAL,
true,
false,
false
);
// 设置整个图片的背景色
chart.setBackgroundPaint(Color.PINK);
// 设置图片有边框
chart.setBorderVisible(true);
Font kfont = new Font("宋体", Font.PLAIN, 12); // 底部
Font titleFont = new Font("宋体", Font.BOLD, 25); // 图片标题
// 图片标题
chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
// 底部
chart.getLegend().setItemFont(kfont);
// 得到坐标设置字体解决乱码
CategoryPlot categoryplot = (CategoryPlot) chart.getPlot();
categoryplot.setDomainGridlinesVisible(true);
categoryplot.setRangeCrosshairVisible(true);
categoryplot.setRangeCrosshairPaint(Color.blue);
NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer();
barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12));
barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12));
CategoryAxis domainAxis = categoryplot.getDomainAxis();
/*------设置X轴坐标上的文字-----------*/
domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
/*------设置X轴的标题文字------------*/
domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
/*------设置Y轴坐标上的文字-----------*/
numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
/*------设置Y轴的标题文字------------*/
numberaxis.setLabelFont(new Font("宋体", Font.PLAIN, 12));
/*------这句代码解决了底部汉字乱码的问题-----------*/
chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));
ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
chart, 500, 300, null);
} catch (Exception es) {
es.printStackTrace();
}
}
}

JSP上使用IMG图片来请求Servlet显示图片:

  1. <%@ page language="java" pageEncoding="UTF-8"%>
  2. <%
  3. String path = request.getContextPath();
  4. String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
  5. %>
  6. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
  7. <html>
  8. <head>
  9. <base href="<%=basePath%>">
  10. <title></title>
  11. <meta http-equiv="pragma" content="no-cache">
  12. <meta http-equiv="cache-control" content="no-cache">
  13. <meta http-equiv="expires" content="0">
  14. <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  15. <meta http-equiv="description" content="This is my page">
  16. </head>
  17. <body>
  18. <center>
  19. <img src="LineServlet">
  20. <img src="PillarServlet">
  21. <img src="ParagraphsServlet">
  22. <img src="CakeServlet">
  23. </center>
  24. </body>
  25. </html>
<%@ page language="java" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title></title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
</head>
<body>
<center>
<img src="LineServlet">
<img src="PillarServlet">
<img src="ParagraphsServlet">
<img src="CakeServlet">
</center>
</body>
</html>

WEB.xml配置:

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
  3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4. xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
  5. http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  6. <filter>
  7. <filter-name>EncodingFilter</filter-name>
  8. <filter-class>org.filter.EncodingFilter</filter-class>
  9. </filter>
  10. <filter-mapping>
  11. <filter-name>EncodingFilter</filter-name>
  12. <url-pattern>/*</url-pattern>
  13. </filter-mapping>
  14. <servlet>
  15. <servlet-name>LineServlet</servlet-name>
  16. <servlet-class>com.xidian.servlet.LineServlet</servlet-class>
  17. </servlet>
  18. <servlet>
  19. <servlet-name>PillarServlet</servlet-name>
  20. <servlet-class>com.xidian.servlet.PillarServlet</servlet-class>
  21. </servlet>
  22. <servlet>
  23. <servlet-name>ParagraphsServlet</servlet-name>
  24. <servlet-class>
  25. com.xidian.servlet.ParagraphsServlet
  26. </servlet-class>
  27. </servlet>
  28. <servlet>
  29. <servlet-name>CakeServlet</servlet-name>
  30. <servlet-class>com.xidian.servlet.CakeServlet</servlet-class>
  31. </servlet>
  32. <servlet-mapping>
  33. <servlet-name>LineServlet</servlet-name>
  34. <url-pattern>/LineServlet</url-pattern>
  35. </servlet-mapping>
  36. <servlet-mapping>
  37. <servlet-name>PillarServlet</servlet-name>
  38. <url-pattern>/PillarServlet</url-pattern>
  39. </servlet-mapping>
  40. <servlet-mapping>
  41. <servlet-name>ParagraphsServlet</servlet-name>
  42. <url-pattern>/ParagraphsServlet</url-pattern>
  43. </servlet-mapping>
  44. <servlet-mapping>
  45. <servlet-name>CakeServlet</servlet-name>
  46. <url-pattern>/CakeServlet</url-pattern>
  47. </servlet-mapping>
  48. <welcome-file-list>
  49. <welcome-file>index.jsp</welcome-file>
  50. </welcome-file-list>
  51. </web-app>
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<filter>
<filter-name>EncodingFilter</filter-name>
<filter-class>org.filter.EncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>EncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>LineServlet</servlet-name>
<servlet-class>com.xidian.servlet.LineServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>PillarServlet</servlet-name>
<servlet-class>com.xidian.servlet.PillarServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>ParagraphsServlet</servlet-name>
<servlet-class>
com.xidian.servlet.ParagraphsServlet
</servlet-class>
</servlet>
<servlet>
<servlet-name>CakeServlet</servlet-name>
<servlet-class>com.xidian.servlet.CakeServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>LineServlet</servlet-name>
<url-pattern>/LineServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>PillarServlet</servlet-name>
<url-pattern>/PillarServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ParagraphsServlet</servlet-name>
<url-pattern>/ParagraphsServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>CakeServlet</servlet-name>
<url-pattern>/CakeServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

为了解决乱码问题,我配置了一个过滤器:

  1. package org.filter;
  2. import java.io.IOException;
  3. import javax.servlet.Filter;
  4. import javax.servlet.FilterChain;
  5. import javax.servlet.FilterConfig;
  6. import javax.servlet.ServletException;
  7. import javax.servlet.ServletRequest;
  8. import javax.servlet.ServletResponse;
  9. /**
  10. * 处理乱码
  11. * @说明
  12. * @author cuisuqiang
  13. * @version 1.0
  14. * @since
  15. */
  16. public class EncodingFilter implements Filter {
  17. public void destroy() {
  18. }
  19. public void doFilter(ServletRequest request, ServletResponse response,
  20. FilterChain chain) throws IOException, ServletException {
  21. request.setCharacterEncoding("gbk");
  22. response.setCharacterEncoding("gbk");
  23. chain.doFilter(request, response);
  24. }
  25. public void init(FilterConfig arg0) throws ServletException {
  26. }
  27. }
package org.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
/**
* 处理乱码
* @说明
* @author cuisuqiang
* @version 1.0
* @since
*/
public class EncodingFilter implements Filter {
public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding("gbk");
response.setCharacterEncoding("gbk");
chain.doFilter(request, response);
}
public void init(FilterConfig arg0) throws ServletException { }
}