jfreechart 를 기반 으로 곡선,기둥 모양 등 그림 을 생 성하 여 JSP 에 보 여 줍 니 다.

지금 은 JS 가 보고서 와 도형 전 시 를 하 는 것 이 매우 보편적 이 고 예 쁘 지만 jfreechart 라 는 것 을 무시 할 수 없습니다!
이 자 료 를 뒤 져 보면 예전 에 쓴 예 시 를 볼 때 jfreechart 에 관 한 간단 한 예 시 를 발 견 했 습 니 다.어쨌든 보 내 서 공유 하 세 요!

이 예제 에 서 는 JSP 와 Servlet 을 배경 과 프론트 데스크 톱 으로 보 여 줍 니 다.아래 에 소스 코드 가 있 으 면 직접 실행 할 수 있 습 니 다!
생산 라인 트 렌 드 맵:

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;
/**
 *        
 * @   
 * @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");
		//  Mysql    select
		// year(accessdate),month(accessdate),day(accessdate),count(*)
		//   accessdate    date     
		//         
		TimeSeriesCollection chartTime = new TimeSeriesCollection();
		//       ， 1            ， 2        ，    
		//         count        
		TimeSeries timeSeries = new TimeSeries("   ", Day.class);
		//     ，      
		// Day      day-month-year     
		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 {
			//   ChartFactory            
			JFreeChart chart = ChartFactory.createTimeSeriesChart(
					"        ", //     
					"  ", // X   
					"   ", // Y   
					date, //   
					true, //       
					true, //     Tooltips
					false //     URL  
			);
			//           
			chart.setBackgroundPaint(Color.PINK);
			//        
			chart.setBorderVisible(true);
			//         
			XYPlot xyPlot = (XYPlot) chart.getPlot();
			//           
			xyPlot.setBackgroundPaint(Color.lightGray);
			//            
			xyPlot.setDomainGridlinePaint(Color.GREEN);
			xyPlot.setRangeGridlinePaint(Color.GREEN);
			//    、          
			xyPlot.setDomainCrosshairVisible(true);
			xyPlot.setRangeCrosshairVisible(true);
			//      （X,Y） render，       
			XYItemRenderer xyItemRenderer = xyPlot.getRenderer();
			if (xyItemRenderer instanceof XYLineAndShapeRenderer) {
				XYLineAndShapeRenderer xyLineAndShapeRenderer = (XYLineAndShapeRenderer) xyItemRenderer;
				xyLineAndShapeRenderer.setShapesVisible(true); //      
				xyLineAndShapeRenderer.setShapesFilled(true); //        
				xyLineAndShapeRenderer.setSeriesFillPaint(0, Color.RED); //         
				xyLineAndShapeRenderer.setUseFillPaint(true);//           render 
			}
			//               
			//     
			Font xfont = new Font("  ", Font.PLAIN, 12);  // X 
			Font yfont = new Font("  ", Font.PLAIN, 12);  // Y 
			Font kfont = new Font("  ", Font.PLAIN, 12);  //   
			Font titleFont = new Font("  ", Font.BOLD, 25); //     
			//     
			chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
			//   
			chart.getLegend().setItemFont(kfont);			
			// X  
			ValueAxis domainAxis = xyPlot.getDomainAxis();
			domainAxis.setLabelFont(xfont);//    
			domainAxis.setTickLabelFont(xfont);//    
			domainAxis.setTickLabelPaint(Color.BLUE); //     
			// Y  
			ValueAxis rangeAxis = xyPlot.getRangeAxis();
			rangeAxis.setLabelFont(yfont);
			rangeAxis.setLabelPaint(Color.BLUE); //     
			rangeAxis.setTickLabelFont(yfont);
			//              
			DateAxis dateAxis = (DateAxis) xyPlot.getDomainAxis();
			//       
			dateAxis.setDateFormatOverride(new SimpleDateFormat("yyyy-MM-dd"));
			//            
			ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
					chart, 500, 300, null);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

생산 막대 그래프:

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;

/**
 *      
 * @   
 * @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");
		//        
		DefaultCategoryDataset chartDate = new DefaultCategoryDataset();
		//       ，         ，       ，         
		chartDate.addValue(55, "   ", "2010-01");
		chartDate.addValue(65, "   ", "2010-02");
		chartDate.addValue(59, "   ", "2010-03");
		chartDate.addValue(156, "   ", "2010-04");
		chartDate.addValue(452, "   ", "2010-05");
		chartDate.addValue(359, "   ", "2010-06");
		try {
			//           
			DefaultCategoryDataset data = chartDate;
			
			//   ChartFactory  3D   ，    3D，    createBarChart
			JFreeChart chart = ChartFactory.createBarChart3D(
					"        ", //     
					"  ", //         
					"   ", //         
					data, //    
					PlotOrientation.VERTICAL, //     ，       
					// PlotOrientation.HORIZONTAL, //    ，       
					true, //       
					true, //       
					false //     URL  
					);			
			//           
			chart.setBackgroundPaint(Color.PINK);
			//        
			chart.setBorderVisible(true);
			Font kfont = new Font("  ", Font.PLAIN, 12);  //   
			Font titleFont = new Font("  ", Font.BOLD, 25); //     
			//     
			chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
			//   
			chart.getLegend().setItemFont(kfont);
			//             
			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("  ", Font.PLAIN, 12));
			barrenderer.setSeriesItemLabelFont(1, new Font("  ", Font.PLAIN, 12));
			CategoryAxis domainAxis = categoryplot.getDomainAxis();			
			/*------  X       -----------*/
			domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
			/*------  X      ------------*/
			domainAxis.setLabelFont(new Font("  ", Font.PLAIN, 12));
			/*------  Y       -----------*/
			numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
			/*------  Y      ------------*/
			numberaxis.setLabelFont(new Font("  ", Font.PLAIN, 12));
			/*------                -----------*/
			chart.getLegend().setItemFont(new Font("  ", Font.PLAIN, 12));
			//        
			ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
					chart, 500, 300, null);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

떡 모양 통계 도 생 성:

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;
/**
 *        
 * @   
 * @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");
		//       
		DefaultPieDataset dataType = new DefaultPieDataset();
		//        ，  
		dataType.setValue("IE6", 156);
		dataType.setValue("IE7", 230);
		dataType.setValue("IE8", 45);
		dataType.setValue("  ", 640);
		dataType.setValue("  ", 245);
		try {
			DefaultPieDataset data = dataType;
			//           3D   
			//   3D   
			PiePlot3D plot = new PiePlot3D(data);
			JFreeChart chart = new JFreeChart(
					"          ",      //     
					JFreeChart.DEFAULT_TITLE_FONT, //     
					plot,             //       
					true              //       
			);
			//           
			chart.setBackgroundPaint(Color.PINK);
			//        
			chart.setBorderVisible(true);
			//     
			Font kfont = new Font("  ", Font.PLAIN, 12);  //   
			Font titleFont = new Font("  ", Font.BOLD, 25); //     
			//     
			chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
			//   
			chart.getLegend().setItemFont(kfont);
			ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
					chart, 500, 300, null);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

기둥 모양 분포 통계 도:

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;
/**
 *        
 * @   
 * @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();
		//       
		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");
		//       
		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");
		//       
		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;
			//   ChartFactory  3D   ，    3D，    createBarChart
			JFreeChart chart = ChartFactory.createBarChart3D(
					"          ", 
					"  ", 
					"   ", 
					data,
					PlotOrientation.VERTICAL, 
					true, 
					false, 
					false
			);
			//           
			chart.setBackgroundPaint(Color.PINK);
			//        
			chart.setBorderVisible(true);
			Font kfont = new Font("  ", Font.PLAIN, 12);  //   
			Font titleFont = new Font("  ", Font.BOLD, 25); //     
			//     
			chart.setTitle(new TextTitle(chart.getTitle().getText(), titleFont));
			//   
			chart.getLegend().setItemFont(kfont);
			//             
			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("  ", Font.PLAIN, 12));
			barrenderer.setSeriesItemLabelFont(1, new Font("  ", Font.PLAIN, 12));
			CategoryAxis domainAxis = categoryplot.getDomainAxis();			
			/*------  X       -----------*/
			domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11));
			/*------  X      ------------*/
			domainAxis.setLabelFont(new Font("  ", Font.PLAIN, 12));
			/*------  Y       -----------*/
			numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12));
			/*------  Y      ------------*/
			numberaxis.setLabelFont(new Font("  ", Font.PLAIN, 12));
			/*------                -----------*/
			chart.getLegend().setItemFont(new Font("  ", Font.PLAIN, 12));	
			ChartUtilities.writeChartAsJPEG(response.getOutputStream(), 1.0f,
					chart, 500, 300, null);
		} catch (Exception es) {
			es.printStackTrace();
		}
	}
}

JSP 에서 IMG 그림 을 사용 하여 Servlet 에 그림 을 보 여 달라 고 요청 합 니 다:

<%@ 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%>" rel="external nofollow" >
  <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 설정:

<?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>

난 장 판 문 제 를 해결 하기 위해 필 터 를 설 정 했 습 니 다.

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;
/**
 *     
 * @   
 * @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 {

	}
}

이상 이 바로 본 고의 모든 내용 입 니 다.여러분 의 학습 에 도움 이 되 고 저 희 를 많이 응원 해 주 셨 으 면 좋 겠 습 니 다.