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java生成柱状图的2种方式源代码
方式1
package com.zmkj.business.ge.action;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import javax.imageio.ImageIO;
public class ZZT {
private static Font mFont = new Font("宋体", Font.PLAIN, 12);
public static void main(String[] args){
double[] value = {7.00d,1.25d,0.83d,1.38d,2.35d};
createimage(value,7.00d);
}
private static void createimage(double[] value,double maxvalue){
try{
int ranwidth = 33,ranheight = 112;
int width = 764, height = 168;
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics();
g.setColor(new Color(255, 255,255));
g.fillRect(1, 1, width - 1, height - 1);
g.setColor(new Color(255, 255,255));
g.drawRect(0, 0, width - 1, height - 1);
g.setFont(mFont);
g.setColor(new Color(255, 26,135));
Color c = new Color(227, 227, 227);
for(int i= 0 ;i<5;i++){
if(i==0){
g.setColor(c);
g.fillRect(72, 54, 33, ranheight);
g.setColor(c);
g.drawRect(72, 54, 33, ranheight);
}else{
g.setColor(c);
g.fillRect(72+(ranwidth+110)*i, 54, 33, ranheight);
g.setColor(c);
g.drawRect(72+(ranwidth+110)*i, 54, 33, ranheight);
}
}
for(int i= 0 ;i<value.length;i++){
Color myc = null;
if(i == 0){
myc = new Color(75,178,209);
}else if(i==1){
myc = new Color(243,152,1);
}else if(i == 2){
myc = new Color(90,159,105);
}else if(i == 3){
myc = new Color(144,130,189);
}else{
myc = new Color(154,190,66);
}
if(i==0){
g.setColor(myc);
g.fillRect(72, 54+(ranheight-(int)Math.round(ranheight*(value[i]/maxvalue))), 33, (int)Math.round(ranheight*(value[i]/maxvalue)));
g.setColor(myc);
g.fillRect(72, 54+(ranheight-(int)Math.round(ranheight*(value[i]/maxvalue))), 33, (int)Math.round(ranheight*(value[i]/maxvalue)));
}else{
g.setColor(myc);
g.fillRect(72+(ranwidth+110)*i, 54+(ranheight-(int)Math.round(ranheight*(value[i]/maxvalue))), 33, (int)Math.round(ranheight*(value[i]/maxvalue)));
g.setColor(myc);
g.drawRect(72+(ranwidth+110)*i, 54+(ranheight-(int)Math.round(ranheight*(value[i]/maxvalue))), 33, (int)Math.round(ranheight*(value[i]/maxvalue)));
}
}
c = new Color(181, 181, 181);
for(int i = 0;i<5;i++){
if(i==0){
g.setColor(c);
g.setFont(mFont);
g.drawString(value[i]+"s", 72,48);
}else{
g.setColor(c);
g.setFont(mFont);
g.drawString(value[i]+"s", 72+(ranwidth+110)*i,48);
}
}
g.dispose();
String filename = "e:\\createimg.jpg";
File file = new File(filename);
if(!file.exists()){
file.createNewFile();
}
FileOutputStream s = new FileOutputStream(file);
ImageIO.write(image, "JPEG", s);
}catch(Exception e){
e.printStackTrace();
}
}
}
方式2
package com.zmkj.business.ge.action;
import java.awt.Font;
import java.io.FileNotFoundException;
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.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.DefaultCategoryDataset;
public class ZZT2 {
/**
* @param args
* @throws IOException
*柱状图
*/
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
// 创建类别图（Category）数据对象
DefaultCategoryDataset dataset =new DefaultCategoryDataset();
dataset.addValue(100,"北京","苹果");
dataset.addValue(100,"上海","苹果");
dataset.addValue(100,"广州","苹果");
dataset.addValue(200,"北京","梨子");
dataset.addValue(200,"上海","梨子");
dataset.addValue(200,"广州","梨子");
dataset.addValue(300,"北京","葡萄");
dataset.addValue(350,"上海","葡萄");
dataset.addValue(300,"广州","葡萄");
dataset.addValue(10,"北京","香蕉");
dataset.addValue(60,"上海","香蕉");
dataset.addValue(120,"广州","香蕉");
dataset.addValue(440,"北京","荔枝");
dataset.addValue(499,"上海","荔枝");
dataset.addValue(500,"广州","荔枝");
JFreeChart chart=ChartFactory.createBarChart3D("水果产量图","还是乱码？？","水果（Y轴上的字）", dataset, PlotOrientation.VERTICAL,true,true,true);
chart.getLegend().setItemFont(new Font("微软雅黑",Font.PLAIN,12));
Font font=new Font("微软雅黑",Font.CENTER_BASELINE,20);
//解决乱码
CategoryPlot plot = (CategoryPlot) chart.getPlot();
CategoryAxis categoryAxis = plot.getDomainAxis();
categoryAxis.setTickLabelFont(new Font("SimSun", Font.PLAIN,12));
categoryAxis.setTickLabelFont(new Font("微软雅黑", Font.PLAIN, 12));//设置x坐标轴的文字
// categoryAxis.setTickLabelFont(new Font("微软雅黑", Font.PLAIN, 12));
NumberAxis numberAxis = (NumberAxis)plot.getRangeAxis();
numberAxis.setLabelFont(new Font("微软雅黑", Font.PLAIN, 12));// 设置y坐标轴的文字
//解决乱码
TextTitle title=new TextTitle("水果产量图");
chart.getLegend().setItemFont(new Font("微软雅黑",Font.PLAIN,12));
chart.setTitle(title);
title.setFont(font);
FileOutputStream imgjpg=null;
try {
imgjpg=new FileOutputStream("e:\\ffffffffffff.jpg");
ChartUtilities.writeChartAsJPEG(imgjpg,1.0f,chart,640,480,null);
imgjpg.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//有一处乱码一直没有解决 如果有你知道的话 请告诉我 谢谢
}
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java生成柱状图 java图表控件 java数据统计控件