今天在逛oschina的時候看見里面有一個代碼分享的功能還不錯，紅薯老大貼出了一段代碼個人覺得很實用轉出來分享下。?
Java代碼??
- 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;??
- ??
- /** ?
- ?*?根據文本生成圖片的工具 ?
- ?*?@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);??
- ????}??
- ??????
- ???? /** ?
- ?????*?生成電子郵件圖片 ?
- ?????*?@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);??
- ????}??
- ??
- ???? /** ?
- ?????*?生成電話號碼圖片 ?
- ?????*?@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);??
- ????}??
- ???? /** ?
- ?????*?生成產品關鍵特征 ?
- ?????*?@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( "宋體" ,?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();??
- ????????}??
- ????}??
- }??
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