package?com.CheckCode;
import?java.io.*;
import?java.util.Map;

import?javax.imageio.ImageIO;
import?javax.imageio.stream.ImageOutputStream;

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

import?java.awt.*;
import?java.awt.image.BufferedImage;
//DefaultAction類繼承了ActionSupport?并定義了session變量
@SuppressWarnings（“serial“）
public?class?CreatidateAction?extends?ActionSupport?{
	private?ByteArrayInputStream?inputStream;
????//產生四個0~9的隨機數，放在一個字符串里
????public?String?createRandomString（）?{
????????String?str?=?““;
????????for?（int?i?=?0;?i?????????????str?+=?Integer.toString（（new?Double（Math.random（）?*?10））.intValue（））;
????????}
????????return?str;
????}
????//隨機產生一個顏色
????public?Color?createsRandomColor（）?{
????????int?r?=?（new?Double（Math.random（）?*?256））.intValue（）;
????????int?g?=?（new?Double（Math.random（）?*?256））.intValue（）;
????????int?b?=?（new?Double（Math.random（）?*?256））.intValue（）;
????????return?new?Color（r?g?b）;
????}
????//生成一個內存圖片，將四個隨機數寫在圖片上
????public?BufferedImage?createImage（String?str）?{
????????int?width?=?60;
????????int?height?=?22;
????????BufferedImage?image?=?new?BufferedImage（width?height?BufferedImage.TYPE_INT_RGB）;
????????//?獲取圖形上下文
????????Graphics?g?=?image.getGraphics（）;
????????//?設定背景色
????????g.setColor（Color.WHITE）;
????????g.fillRect（0?0?width?height）;
????????//畫邊框
????????g.setColor（Color.black）;
????????g.drawRect（0?0?width?-?1?height?-?1）;
????????//?將認證碼顯示到圖象中
????????g.setFont（new?Font（“Atlantic?Inline“?Font.PLAIN?18））;
????????//使用隨機顏色
????????g.setColor（this.createsRandomColor（））;
????????//將隨機字符串的每個數字分別寫到圖片上
????????g.drawString（Character.toString（str.charAt（0））?8?17）;
????????g.drawString（Character.toString（str.charAt（1））?20?17）;
????????g.drawString（Character.toString（str.charAt（2））?33?17）;
????????g.drawString（Character.toString（str.charAt（3））?45?17）;
????????//?圖象生效
????????g.dispose（）;
????????return?image;
????}
????//將圖片的以字節形式寫到InputStream里
????@SuppressWarnings（“unchecked“）
	public?ByteArrayInputStream?createInputStream（）?throws?Exception?{
????????//獲取隨機字符串
????????String?str=this.createRandomString（）;
????????BufferedImage?image?=?this.createImage（str）;
????????//將產生的字符串寫入session，供校驗時使用
???
????????ActionContext?actionContext?=?ActionContext.getContext（）;???
????????
????????Map?session?=?actionContext.getSession（）;???
???????????
????????session.put（“random“?str）;

????????ByteArrayOutputStream?output?=?new?ByteArrayOutputStream（）;
????????ImageOutputStream?imageOut?=?ImageIO.createImageOutputStream（output）;
????????ImageIO.write（image?“JPEG“?imageOut）;
????????imageOut.close（）;
????????ByteArrayInputStream?input?=?new?ByteArrayInputStream（output.toByteArray（））;
????????output.close（）;
????????return?input;
????}

????@Override
????public?String?execute（）?throws?Exception?{
????????setInputStream（createInputStream（））;
????????return?SUCCES

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????680??2011-04-24?20:21??Oexam?verson?3.0beta\Oexam\.classpath

?????文件????????288??2011-06-08?21:14??Oexam?verson?3.0beta\Oexam\.mymetadata

?????文件????????240??2011-04-21?09:44??Oexam?verson?3.0beta\Oexam\.mystrutsdata

?????文件???????1361??2011-04-21?09:44??Oexam?verson?3.0beta\Oexam\.project

?????文件????????330??2011-04-16?10:29??Oexam?verson?3.0beta\Oexam\.settings\org.eclipse.jdt.core.prefs

?????文件???????5804??2011-06-12?23:08??Oexam?verson?3.0beta\Oexam\src\.struts.mex

?????文件???????1923??2011-06-12?23:08??Oexam?verson?3.0beta\Oexam\src\struts.xml

?????文件???????3368??2011-05-18?20:31??Oexam?verson?3.0beta\Oexam\src\com\CheckCode\CreatidateAction.java

?????文件???????1397??2011-05-31?22:18??Oexam?verson?3.0beta\Oexam\src\com\dao\CenterImp.java

?????文件???????8330??2011-05-23?23:03??Oexam?verson?3.0beta\Oexam\src\com\dao\Imp.java

?????文件???????7051??2011-06-10?14:05??Oexam?verson?3.0beta\Oexam\src\com\dao\SubjectImp.java

?????文件???????6527??2011-06-12?20:49??Oexam?verson?3.0beta\Oexam\src\com\dao\TeacherImp.java

?????文件????????935??2011-04-21?10:34??Oexam?verson?3.0beta\Oexam\src\com\DbConn\DBConnection.java

?????文件???????2875??2011-06-11?22:49??Oexam?verson?3.0beta\Oexam\src\com\dto\LoginAction.java

?????文件???????8748??2011-06-01?10:07??Oexam?verson?3.0beta\Oexam\src\com\dto\ManageAction.java

?????文件??????14089??2011-06-11?23:19??Oexam?verson?3.0beta\Oexam\src\com\dto\TandSAction.java

?????文件????????875??2011-04-21?09:54??Oexam?verson?3.0beta\Oexam\WebRoot\bottom.jsp

?????文件???????1672??2011-06-12?23:14??Oexam?verson?3.0beta\Oexam\WebRoot\index.jsp

?????文件???????7826??2011-05-31?22:42??Oexam?verson?3.0beta\Oexam\WebRoot\login.jsp

?????文件???????1432??2011-04-21?10:15??Oexam?verson?3.0beta\Oexam\WebRoot\css\lavalamp_test.css

?????文件???????1054??2011-04-23?22:12??Oexam?verson?3.0beta\Oexam\WebRoot\css\manage.css

?????文件???????1245??2011-06-09?11:56??Oexam?verson?3.0beta\Oexam\WebRoot\css\style.css

?????文件??????19706??2011-04-18?21:40??Oexam?verson?3.0beta\Oexam\WebRoot\images\banner.gif

?????文件???????2729??2011-04-18?21:40??Oexam?verson?3.0beta\Oexam\WebRoot\images\bg.gif

?????文件??????26091??2011-04-18?21:40??Oexam?verson?3.0beta\Oexam\WebRoot\images\bg.jpg

?????文件????????540??2011-04-24?16:49??Oexam?verson?3.0beta\Oexam\WebRoot\images\delete.png

?????文件???????2267??2011-04-18?21:40??Oexam?verson?3.0beta\Oexam\WebRoot\images\jw.gif

?????文件???????1649??2011-04-18?21:40??Oexam?verson?3.0beta\Oexam\WebRoot\images\lava.gif

?????文件???????2131??2011-04-18?21:40??Oexam?verson?3.0beta\Oexam\WebRoot\images\loginbody_1.jpg

?????文件??????12544??2011-04-19?09:05??Oexam?verson?3.0beta\Oexam\WebRoot\images\loginbody_bg.gif

............此處省略118個文件信息