package?com.sqt.action.user;

import?java.awt.Color;
import?java.awt.Font;
import?java.awt.Graphics;
import?java.awt.image.BufferedImage;
import?java.io.ByteArrayInputStream;
import?java.io.ByteArrayOutputStream;
import?java.util.Map;
import?java.util.Random;

import?javax.imageio.ImageIO;
import?javax.servlet.http.HttpServletResponse;
import?org.apache.struts2.ServletActionContext;

import?com.opensymphony.xwork2.ActionContext;
import?com.opensymphony.xwork2.ActionSupport;

public?class?CreateImageAction?extends?ActionSupport?{
	private?ByteArrayInputStream?inputStream;
????private?static?int?WIDTH?=?60;

????private?static?int?HEIGHT?=?20;

????public?ByteArrayInputStream?getInputStream（）
????{
????????return?inputStream;
????}

????public?void?setInputStream（ByteArrayInputStream?inputStream）
????{
????????this.inputStream?=?inputStream;
????}
????private?static?String?createRandom（）
????{
????????String?str?=?“0123456789qwertyuiopasdfghjklzxcvbnm“;
????????char[]?rands?=?new?char[4];
????????Random?random?=?new?Random（）;
????????for?（int?i?=?0;?i?????????{
????????????rands[i]?=?str.charAt（random.nextInt（36））;
????????}
????????return?new?String（rands）;
????}

????private?void?drawBackground（Graphics?g）
????{
????????//?畫背景
????????g.setColor（new?Color（0xDCDCDC））;

????????g.fillRect（0?0?WIDTH?HEIGHT）;

????????//?隨機(jī)產(chǎn)生?120?個(gè)干擾點(diǎn)

????????for?（int?i?=?0;?i?????????{
????????????int?x?=?（int）?（Math.random（）?*?WIDTH）;
????????????int?y?=?（int）?（Math.random（）?*?HEIGHT）;
????????????int?red?=?（int）?（Math.random（）?*?255）;
????????????int?green?=?（int）?（Math.random（）?*?255）;
????????????int?blue?=?（int）?（Math.random（）?*?255）;
????????????g.setColor（new?Color（red?green?blue））;
????????????g.drawOval（x?y?1?0）;
????????}
????}

????private?void?drawRands（Graphics?g?String?rands）
????{
????????g.setColor（Color.BLACK）;

????????g.setFont（new?Font（null?Font.ITALIC?|?Font.BOLD?18））;

????????//?在不同的高度上輸出驗(yàn)證碼的每個(gè)字符

????????g.drawString（““?+?rands.charAt（0）?1?17）;
????????g.drawString（““?+?rands.charAt（1）?16?15）;
????????g.drawString（““?+?rands.charAt（2）?31?18）;
????????g.drawString（““?+?rands.charAt（3）?46?16）;
????????System.out.println（rands）;

????}

????@Override
????public?String?execute（）?throws?Exception
????{
????	System.out.println（“----獲取驗(yàn)證碼----“）;
????????HttpServletResponse?response?=?ServletActionContext.getResponse（）;
???????
????????//?設(shè)置瀏覽器不要緩存此圖片
????????response.setContentType（“image/jpeg“）;
????????response.setHeader（“Pragma“?“No-cache“）;
????????response.setHeader（“Cache-Control“?“no-cache“）;
????????response.setDateHeader（“Expires“?0）;
????????
????????String?rands?=?createRandom（）;
????????BufferedImage?image?=?new?BufferedImage（WIDTH?HEIGHT
????????????????BufferedImage.TYPE_INT_RGB）;
????????Graphics?g?=?image.getGraphics（）;

????????//?產(chǎn)生圖像
????????drawBackground（g）;
????????drawRands（g?rand

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-09-12?09:25??ssh2_AddPage\
?????文件?????????648??2015-09-12?09:31??ssh2_AddPage\.classpath
?????目錄???????????0??2015-09-12?09:25??ssh2_AddPage\.git\
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\branches\
?????文件??????????23??2015-08-24?09:26??ssh2_AddPage\.git\COMMIT_EDITMSG
?????文件??????????79??2015-08-24?09:25??ssh2_AddPage\.git\config
?????文件??????????23??2015-08-24?09:25??ssh2_AddPage\.git\HEAD
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\hooks\
?????文件????????9352??2015-08-24?09:26??ssh2_AddPage\.git\index
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\logs\
?????文件?????????167??2015-08-24?09:26??ssh2_AddPage\.git\logs\HEAD
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\logs\refs\
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\logs\refs\heads\
?????文件?????????167??2015-08-24?09:26??ssh2_AddPage\.git\logs\refs\heads\master
?????目錄???????????0??2015-09-12?09:25??ssh2_AddPage\.git\objects\
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\00\
?????文件?????????657??2015-09-12?09:24??ssh2_AddPage\.git\objects\00\17ffe17011bef3acbbf71e8816fbd7ad1c8785
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\05\
?????文件??????????21??2015-09-12?09:24??ssh2_AddPage\.git\objects\05\bd71b6ec2c1982d1e8a5653073281994564ae8
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\06\
?????文件?????????362??2015-09-12?09:24??ssh2_AddPage\.git\objects\06\a6a349ffeb7239f50a9fc73517acb208348f62
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\0f\
?????文件?????????116??2015-09-12?09:24??ssh2_AddPage\.git\objects\0f\9efe05de9c7d85e313850c5f782d8ba7437e4e
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\11\
?????文件?????????254??2015-09-12?09:24??ssh2_AddPage\.git\objects\11\514735f5b1fe92ba6c0b49bc786f6520ea3ee2
?????文件??????????46??2015-09-12?09:24??ssh2_AddPage\.git\objects\11\a28d8fac4c19729436ed29b58f3f515f75a715
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\12\
?????文件??????????65??2015-09-12?09:24??ssh2_AddPage\.git\objects\12\90b49356b2713867f01b07a6052d3f7092fb36
?????目錄???????????0??2015-09-12?09:24??ssh2_AddPage\.git\objects\13\
?????文件???????51331??2015-09-12?09:24??ssh2_AddPage\.git\objects\13\1f1924e043df8d10d65c8090508ea2193fd2cc
?????文件?????????488??2015-09-12?09:24??ssh2_AddPage\.git\objects\13\bf335ab9944145a8f6c7ae6b7883460f67c1e1
............此處省略335個(gè)文件信息