chartgraphics.java

简单的生成一个图片

package 生成图片;

import java.io.*; 
import java.util.*; 
import com.sun.image.codec.jpeg.*; 
import java.awt.image.*; 
import java.awt.*; 

public class ChartGraphics
{ 
	BufferedImage image; 
	
	public void createImage(String fileLocation)
	{ 
		try
		{ 
			FileOutputStream fos = new FileOutputStream(fileLocation); 
			BufferedOutputStream bos = new BufferedOutputStream(fos); 
			JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos); 
			encoder.encode(image); 
			bos.close(); 
		} 
		catch(Exception e)
		{ 
			System.out.println(e); 
		} 
	} 

	public void graphicsGeneration()
	{ 
		int imageWidth = 100;
		int imageHeight =100;

		ChartGraphics chartGraphics = new ChartGraphics(); 
		chartGraphics.image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB); 
		
		Graphics g = chartGraphics.image.getGraphics(); 		
		
		g.setColor(Color.RED);
		g.drawRect(0, 0, 50, 50);
			
		chartGraphics.createImage("c:\\chart.jpg"); 
	} 


	public static void main(String[] args) 
	{
		ChartGraphics cg=new ChartGraphics();
		cg.graphicsGeneration();
	}

}