imagetool.java

ajax+jsp做的blog源码

package cn.com.blogonline;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.util.Random;

public class ImageTool {

	public String sRand="";
	
	public Color getRandColor(int fc,int bc){
		Random random = new Random();
		if(fc>255) fc=255;
		if(bc>255) bc=255;
		int r=fc+random.nextInt(bc-fc);
		int g=fc+random.nextInt(bc-fc);
		int b=fc+random.nextInt(bc-fc);
		return new Color(r,g,b);
	}
	
	public BufferedImage creatImage(){
		
	
		int width=60, height=20;
		BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
		
	
		Graphics g = image.getGraphics();
		
	
		Random random = new Random();
		

		g.setColor(getRandColor(200,250));
		g.fillRect(0, 0, width, height);
		
	
		g.setFont(new Font("Times New Roman",Font.PLAIN,18));
		for (int i=0;i<155;i++)
		{
			g.setColor(getRandColor(160,200));
			int x = random.nextInt(width);
			int y = random.nextInt(height);
			int xl = random.nextInt(12);
			int yl = random.nextInt(12);
			g.drawLine(x,y,x+xl,y+yl);
		}
		
	

		sRand = "";		
		for (int i=0;i<4;i++){
			String rand=String.valueOf(random.nextInt(10));
			sRand+=rand;
		
			g.setColor(new Color(20+random.nextInt(110),20+random.nextInt(110),20+random.nextInt(110)));
			g.drawString(rand,13*i+6,16);
		}
	
		g.dispose();
		return image;
	}
}