freechartutils.java

客户关系管理系统主要管理新老客户的一些信息并可以发现潜在客户

package com.qrsx.qrsxcrm.web;

import java.awt.Color;
import java.io.FileOutputStream;
import java.io.IOException;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.general.DefaultPieDataset;


public class FreeChartUtils {

	private static String path="c:\\e.jpg";	//保存路径
	private static String title;				//报表名称

	/**
	 * 构造方法
	 * @param title
	 */
	public FreeChartUtils(String title,String path){
		this.title=title;
		this.path=path;
	}
	public FreeChartUtils(){}
	
	public FreeChartUtils(String title){
		this.title=title;
	}
	
	//******************************************************
	//*生成饼状图 
	//* 
	//*****************************************************
	/**
	 * 组装数据
	 * @return
	 */
	public static DefaultPieDataset getDateset(){
		DefaultPieDataset dataset=new DefaultPieDataset();
		dataset.setValue("asd", new Double(15));
		dataset.setValue("erer", new Double(15));
		return dataset;
	}
	/**
	 * 生成饼状图报表
	 * @return
	 */
	public static JFreeChart createChart(){
		DefaultPieDataset dataset=FreeChartUtils.getDateset();
		JFreeChart chart=ChartFactory.createPieChart(title, 	//名称
						dataset,		//数据源
						true,		//是否显示图例
						true,
						false
						);
		return chart;
	}
	/**
	 * 根据传递的数据生成饼状图报表
	 * @param dataset
	 * @return
	 */
	public static JFreeChart createChart(DefaultPieDataset dataset){
		JFreeChart chart=ChartFactory.createPieChart(title, 	//名称
						dataset,		//数据源
						true,		//是否显示图例
						true,
						false
						);
		chart.setBackgroundPaint(Color.white);
		return chart;
	}
	
	/**
	 * 根据传递的数据生成饼状图报表图片
	 * @throws IOException
	 */
	public static void createPicture(DefaultPieDataset dataset) throws IOException{
		JFreeChart chart=FreeChartUtils.createChart(dataset);
		FileOutputStream osJpg=null;
		try {
			osJpg=new FileOutputStream(path);
			ChartUtilities.writeChartAsJPEG(osJpg, chart, 400, 300);
		}finally{
			try {
				osJpg.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
	
	
	
	//******************************************************
	//*生成柱状图 
	//* 
	//*****************************************************
	public static DefaultCategoryDataset getCategoryDateset(){
		DefaultCategoryDataset dataset=new DefaultCategoryDataset();
		dataset.addValue(100, null, "pp");
		dataset.addValue(200, null, "oo");
		return dataset;
	}
	
	/**
	 * 
	 * @param dataset,组装的数据
	 * @param X	x轴 的名称
	 * @param Y	y轴 的名称 
	 * @return
	 */
	public static JFreeChart createChart(CategoryDataset dataset,String X,String Y){
		JFreeChart chart =ChartFactory.createBarChart(title, 
														X, 
														Y, 
														dataset, 
														PlotOrientation.VERTICAL, 
														true, 
														false, 
														false
														);
		return chart;
	}
	/**
	 * 生成柱状图片
	 * @param dataset
	 * @throws IOException
	 */
	public static void createPicture(CategoryDataset dataset,String X,String Y) throws IOException{
		JFreeChart chart=FreeChartUtils.createChart(dataset,X,Y);
		FileOutputStream osJpg=null;
		try {
			osJpg=new FileOutputStream(path);
			ChartUtilities.writeChartAsJPEG(osJpg,1, chart, 400, 300,null);
		}finally{
			try {
				osJpg.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
	
	
	
	
	
	
	
	public static void main(String[] args) throws IOException {
			
	}
}