package?edu.neuq.action;
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
public?class?creatidateAction?extends?ActionSupport?{

????private?ByteArrayInputStream?inputStream;
????//產(chǎn)生四個(gè)0~9的隨機(jī)數(shù)，放在一個(gè)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(jī)產(chǎn)生一個(gè)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(gè)內(nèi)存圖片，將四個(gè)隨機(jī)數(shù)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(shè)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(rèn)證碼顯示到圖象中
????????g.setFont（new?Font（“Atlantic?Inline“?Font.PLAIN?18））;
????????//使用隨機(jī)顏色
????????g.setColor（this.createsRandomColor（））;
????????//將隨機(jī)字符串的每個(gè)數(shù)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(jié)形式寫到InputStream里
????public?ByteArrayInputStream?createInputStream（）?throws?Exception?{
????????//獲取隨機(jī)字符串
????????String?str=this.createRandomString（）;
????????BufferedImage?image?=?this.createImage（str）;
????????//將產(chǎn)生的字符串寫入session，供校驗(yàn)時(shí)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?SUCCESS;
????}
???
????public?ByteArrayInputStream?getInp

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1108??2010-12-21?18:42??web_job\.classpath

?????文件????????876??2010-12-16?16:40??web_job\.myeclipse\profiler\Service.xml

?????文件????????294??2010-12-15?19:38??web_job\.mymetadata

?????文件???????1413??2010-12-15?20:39??web_job\.project

?????文件????????500??2010-12-15?19:38??web_job\.settings\.jsdtscope

?????文件????????330??2010-12-15?19:38??web_job\.settings\org.eclipse.jdt.core.prefs

?????文件?????????49??2010-12-15?19:38??web_job\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2010-12-15?19:38??web_job\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????3316??2010-12-17?16:18??web_job\src\edu\neuq\action\creatidateAction.java

?????文件???????1658??2010-12-22?15:04??web_job\src\edu\neuq\action\FileDownloadAction.java

?????文件????????660??2010-12-17?11:25??web_job\src\edu\neuq\action\LoginAction-validation.xml

?????文件???????1320??2010-12-29?09:43??web_job\src\edu\neuq\action\LoginAction.java

?????文件????????412??2010-12-29?09:34??web_job\src\edu\neuq\action\logoutAction.java

?????文件???????2073??2010-12-21?14:50??web_job\src\edu\neuq\action\modify_pswdAction.java

?????文件???????2058??2010-12-21?11:52??web_job\src\edu\neuq\action\Mod_infoAction.java

?????文件???????1089??2010-12-22?15:29??web_job\src\edu\neuq\action\MysourcesAction.java

?????文件???????2171??2010-12-17?16:05??web_job\src\edu\neuq\action\RegisterAction-validation.xml

?????文件???????2115??2010-12-19?08:38??web_job\src\edu\neuq\action\RegisterAction.java

?????文件???????2808??2010-12-22?15:49??web_job\src\edu\neuq\action\UploadAction.java

?????文件???????1372??2010-12-21?22:14??web_job\src\edu\neuq\beans\Sources.java

?????文件???????1268??2010-12-19?16:32??web_job\src\edu\neuq\beans\users.java

?????文件???????1283??2010-12-16?16:24??web_job\src\edu\neuq\database\JdbcUtil.java

?????文件???????7077??2010-12-22?09:09??web_job\src\edu\neuq\database\Service.java

?????文件????????218??2010-12-21?18:48??web_job\src\message.properties

?????文件????????573??2010-12-22?09:07??web_job\src\SQL?Editor?.sql

?????文件?????????37??2010-12-21?20:00??web_job\src\struts.properties

?????文件???????4286??2010-12-29?09:43??web_job\src\struts.xml

?????文件???????4762??2010-12-19?10:02??web_job\WebRoot\image\?1.jpg

?????文件???????1538??2010-12-29?09:53??web_job\WebRoot\jsp\choice.jsp

?????文件????????414??2010-12-22?09:28??web_job\WebRoot\jsp\display.jsp

............此處省略70個(gè)文件信息