使用图片方式显示email地址

import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.IndexColorModel;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream; import javax.imageio.ImageIO; /**
* 根据文本生成图片的工具
* @author Winter Lau
* @date 2009-7-30 下午12:58:26
*/
public class TextImageUtils { private final static IndexColorModel icm = createIndexColorModel(); static IndexColorModel createIndexColorModel() {
BufferedImage ex = new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_INDEXED);
IndexColorModel icm = (IndexColorModel) ex.getColorModel();
int SIZE = 256;
byte[] r = new byte[SIZE];
byte[] g = new byte[SIZE];
byte[] b = new byte[SIZE];
byte[] a = new byte[SIZE];
icm.getReds(r);
icm.getGreens(g);
icm.getBlues(b);
java.util.Arrays.fill(a, (byte)255);
r[0] = g[0] = b[0] = a[0] = 0; //transparent
return new IndexColorModel(8, SIZE, r, g, b, a);
} /**
* 生成电子邮件图片
* @param email
* @param out
* @throws IOException
*/
public static void MakeEmailImage(String email, OutputStream out) throws IOException {
int height = 22;
BufferedImage bi = new BufferedImage(255,height,BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D)bi.getGraphics();
Font mFont = new Font("Verdana", Font.PLAIN, 14);
g.setFont(mFont);
g.drawString(email, 2, 19);
FontMetrics fm = g.getFontMetrics();
int new_width = fm.charsWidth(email.toCharArray(), 0, email.length()) + 4;
int new_height = fm.getHeight();
BufferedImage nbi = new BufferedImage(new_width, new_height,
BufferedImage.TYPE_BYTE_INDEXED, icm);
Graphics2D g2 = (Graphics2D)nbi.getGraphics();
g2.setColor(new Color(0,0,0,0));//透明
g2.fillRect(0,0,new_width,new_height);
g2.setFont(mFont);
g2.setColor(new Color(200,0,0));
g2.drawString(email, 2, new_height-4); ImageIO.write(nbi, "gif", out);
} /**
* 生成电话号码图片
* @param phone
* @param out
* @throws IOException
*/
public static void MakePhoneImage(String phone, OutputStream out) throws IOException {
int height = 22;
BufferedImage bi = new BufferedImage(255,height,BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D)bi.getGraphics();
Font mFont = new Font("Verdana", Font.BOLD, 20);
g.setFont(mFont);
g.drawString(phone, 2, 19);
FontMetrics fm = g.getFontMetrics();
int new_width = fm.charsWidth(phone.toCharArray(), 0, phone.length()) + 4;
int new_height = fm.getHeight();
BufferedImage nbi = new BufferedImage(new_width, new_height,
BufferedImage.TYPE_BYTE_INDEXED, icm);
Graphics2D g2 = (Graphics2D)nbi.getGraphics();
g2.setColor(new Color(0,0,0,0));//透明
g2.fillRect(0,0,new_width,new_height);
g2.setFont(mFont);
g2.setColor(new Color(200,0,0));
g2.drawString(phone, 2, new_height-4);
ImageIO.write(nbi, "gif", out);
}
/**
* 生成产品关键特征
* @param attribute
* @param out
* @throws IOException
*/
public static void MakeProductAttribute(String attribute, OutputStream out) throws IOException{
int height = 22;
BufferedImage bi = new BufferedImage(255,height,BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D)bi.getGraphics();
Font mFont = new Font("宋体", Font.BOLD, 13);
g.setFont(mFont);
g.drawString(new String(attribute), 2, 19);
FontMetrics fm = g.getFontMetrics();
int new_width = fm.charsWidth(attribute.toCharArray(), 0, attribute.length()) + 4;
int new_height = fm.getHeight();
BufferedImage nbi = new BufferedImage(new_width, new_height,
BufferedImage.TYPE_BYTE_INDEXED, icm);
Graphics2D g2 = (Graphics2D)nbi.getGraphics();
g2.setColor(new Color(0,0,0,0));//透明
g2.fillRect(0,0,new_width,new_height);
g2.setFont(mFont);
g2.setColor(new Color(200,0,0));
g2.drawString(attribute, 2, new_height-4);
ImageIO.write(nbi, "gif", out);
} public static void main(String[] args) throws IOException {
String num = "020-85551111";
FileOutputStream fos = new FileOutputStream("D:/phone.gif");
try{
MakePhoneImage(num, fos);
}finally{
fos.close();
}
String email = "xxxxx@oschina.net";
FileOutputStream fos2 = new FileOutputStream("D:/email.gif");
try{
MakeEmailImage(email, fos2);
}finally{
fos2.close();
}
}
}
上一篇:SSH学习


下一篇:飞旋treap