JFreeChart开发股票K线图

来源：互联网发布：厦门智业软件编辑：程序博客网时间：2024/05/01 00:36

在JAVA的图形开发中,JFreeChart提供源代码及DEMO代码,详细的API工具,如果遇到问题还可以到http://www.jfree.org/phpBB2这个论坛一问究竟,全面的技术支持使图形开发起来得心应手!

下面的例子是用JFreeChart开发股票K线图,附有注释

import java.sql.*;

import java.text.SimpleDateFormat;

import java.util.*;

import java.lang.*;

import java.awt.Color;

import java.awt.Font;

import java.text.DecimalFormat;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.Date;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import javax.swing.JApplet;

import javax.swing.JPanel;

import org.jfree.chart.ChartFrame;

import org.jfree.chart.ChartPanel;

import org.jfree.chart.JFreeChart;

import org.jfree.chart.axis.DateAxis;

import org.jfree.chart.axis.DateTickMarkPosition;

import org.jfree.chart.axis.NumberTickUnit;

import org.jfree.chart.axis.SegmentedTimeline;

import org.jfree.chart.axis.DateTickUnit;

import org.jfree.chart.axis.NumberAxis;

import org.jfree.chart.block.BlockBorder;

import org.jfree.chart.block.BlockContainer;

import org.jfree.chart.block.BorderArrangement;

import org.jfree.chart.labels.StandardXYToolTipGenerator;

import org.jfree.chart.plot.CombinedDomainXYPlot;

import org.jfree.chart.plot.Marker;

import org.jfree.chart.plot.Plot;

import org.jfree.chart.plot.XYPlot;

import org.jfree.chart.renderer.xy.CandlestickRenderer;

import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;

import org.jfree.chart.title.LegendTitle;

import org.jfree.data.general.Dataset;

import org.jfree.data.time.Day;

import org.jfree.data.time.TimeSeries;

import org.jfree.data.time.TimeSeriesCollection;

import org.jfree.data.xy.DefaultHighLowDataset;

import org.jfree.data.xy.IntervalXYDataset;

import org.jfree.data.xy.OHLCDataset;

import org.jfree.ui.HorizontalAlignment;

import org.jfree.ui.RectangleEdge;

public class TestMinute {

List ls = new ArrayList();//定义一个用来保存数据的集合类List

double max_vol,min_vol,max_pr,min_pr;

Date firstt,lastt;

Map map = null;//用来表示一条记录

public void clearList(){//清空保存数据的集合类List

ls.clear();

}

///该方法主要是为WEB端的JS调用,定义一个新的Map,插入一行空的记录

public void insertRecord() {

map = new HashMap();

}

///该方法主要是为WEB端的JS调用,为当前记录设置值

public void setValue(java.lang.String string, java.lang.String value) {

map.put(string, value);

}

///该方法主要是为WEB端的JS调用,把当前记录添加到记录集List里

public void postRecord() {

ls.add(map);

}

public double[] calavergerprice(int datenum,double[] val){

int ini_num = val.length;

int size = ini_num-datenum+1;

double[] res = new double[size];

for(int i = 0;i<size;i++){

double tempval = 0.0;

for(int j = i;j<(i+datenum);j++){

tempval = tempval+val[j];

}

res[i] = tempval/datenum;

}

return res;

}

//将数据库中数据读入ls集合中

public void readData(java.lang.String stock_id,int record_num){

try{

Connection con = DatabaseConnection.getConection();

Statement stmt = con.createStatement();

ResultSet rs = stmt.executeQuery("select * from stockminute where stock_id = '"+stock_id+"' order by tran_time desc limit "+record_num);

double[] temp_avg = new double[record_num];

double[] vol_temp_avg = new double[record_num];

int index = 0;

int vol_index = 0;

while(rs.next()){

temp_avg[index++] = rs.getDouble(7);

vol_temp_avg[vol_index++] = rs.getDouble(8);

}

//5,10,30日均价

double[] avg5 = this.calavergerprice(5, temp_avg);

double[] avg10 = this.calavergerprice(10, temp_avg);

double[] avg30 = this.calavergerprice(30, temp_avg);

//5,10,30日均成交量

double[] vol_avg5 = this.calavergerprice(5,vol_temp_avg);

double[] vol_avg10 = this.calavergerprice(10,vol_temp_avg);

double[] vol_avg30 = this.calavergerprice(30,vol_temp_avg);

//设定最高和最低的总体价格和成交量的初始值（假定为第一条记录的内容）

rs.first();

this.max_pr = rs.getDouble(5);

this.min_pr = rs.getDouble(6);

this.max_vol = rs.getDouble(8);

this.min_vol = this.max_vol;

SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

this.lastt = sdf1.parse(rs.getDate(3).toString()+" "+rs.getTime(3).toString());

Calendar cal = Calendar.getInstance();

cal.setTime(lastt);

cal.add(Calendar.MINUTE, 1);

lastt=cal.getTime();

//开始填充数据

int stop = avg30.length;

int num = 0;

rs.beforeFirst();

//从此结果集的第一行开始读取

while(rs.next()){

if(num==stop) break;

else{

this.insertRecord();

this.setValue("stock_name",rs.getString(2));

this.setValue("issue_datetime", rs.getDate(3).toString()+" "+rs.getTime(3).toString());

//System.out.println((rs.getDate(3).toString()+" "+rs.getTime(3)).toString());

this.setValue("open_value", Double.toString(rs.getDouble(4)));

this.setValue("high_value", Double.toString(rs.getDouble(5)));

//判断是否大于现在的最高价

if(rs.getDouble(5)>this.max_pr) this.max_pr = rs.getDouble(5);

this.setValue("low_value", Double.toString(rs.getDouble(6)));

//判断是否小于现在的最低价

if(rs.getDouble(6)<this.min_pr) this.min_pr = rs.getDouble(6);

this.setValue("close_value",Double.toString(rs.getDouble(7)));

this.setValue("volume_value", Double.toString(rs.getDouble(8)));

//更新最高，最低成交量

if(rs.getDouble(8)>this.max_vol) this.max_vol = rs.getDouble(8);

else if(rs.getDouble(8)<this.min_vol) this.min_vol = rs.getDouble(8);

this.setValue("avg5", Double.toString(avg5[num]));

this.setValue("avg10", Double.toString(avg10[num]));

this.setValue("avg30", Double.toString(avg30[num]));

this.setValue("vol_avg5", Double.toString(vol_avg5[num]));

this.setValue("vol_avg10", Double.toString(vol_avg10[num]));

this.setValue("vol_avg30", Double.toString(vol_avg30[num]));

this.postRecord();

num++;

if(num==stop){

this.firstt = sdf1.parse(rs.getDate(3).toString()+" "+rs.getTime(3).toString());

}

DatabaseConnection.releaseConnection(con, stmt, rs);

}

catch(Exception e){

e.printStackTrace();

}

public Map createDatasetMap(java.lang.String stock_id,int num) {

try{

this.readData(stock_id,num);

// 从每一行记录里取出特定值，用来开成各种类型的均线和阴阳线图

Map m = new HashMap();

TimeSeries avg_lin5 = new TimeSeries("5分钟均线",