package?action;

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.Random;

import?javax.imageio.ImageIO;
import?javax.servlet.http.HttpServletResponse;
import?javax.servlet.http.HttpSession;


import?org.apache.struts2.ServletActionContext;

import?com.opensymphony.xwork2.ActionSupport;

public?class?CreateImageAction?extends?ActionSupport?{

	/*@Autowired
	private?HttpSession?session;
	@Autowired
	private?HttpServletResponse?response;*/

	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）;

		//?隨機產(chǎn)生?120?個干擾點

		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證碼的每個字符

		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）;

	}

	public?String?execute（）?//?throws?Exception
	{
		/*ByteArrayInputStream?input?=?new?ByteArrayInputStream（null）;
		ByteArrayOutputStream?outputStream?=?new?ByteArrayOutputStream（）;*/
		?HttpServletResponse?response?=?ServletActionContext.getResponse（）;

		//?設(shè)置瀏覽器不要緩存此圖片
		try?{
			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?rands）;

			//?結(jié)束圖像?的繪制?過程，?完成圖像
			g.dispose（）;

			?ByteArrayOutputStream?outputStream?=?new?ByteArrayOutputStream（）;

			ImageIO.write（image?“jpeg“?outputStream）;

			ByteArrayInputStream?input?=?new?ByteArrayI

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3105??2017-11-27?10:15??.classpath
?????目錄???????????0??2017-11-24?14:37??.myeclipse\
?????文件?????????518??2017-11-27?10:15??.myhibernatedata
?????文件?????????288??2017-11-24?14:37??.mymetadata
?????文件?????????240??2017-11-24?14:38??.mystrutsdata
?????文件????????2241??2017-11-24?15:04??.project
?????目錄???????????0??2017-11-27?10:15??.settings\
?????文件?????????500??2017-11-24?14:37??.settings\.jsdtscope
?????文件?????????397??2017-11-27?09:56??.settings\com.genuitec.eclipse.migration.prefs
?????文件?????????412??2017-11-27?10:15??.settings\com.genuitec.runtime.libraries.xml
?????文件?????????395??2017-11-24?14:37??.settings\org.eclipse.jdt.core.prefs
?????文件?????????588??2017-11-27?09:56??.settings\org.eclipse.wst.common.component
?????文件?????????648??2017-11-27?10:15??.settings\org.eclipse.wst.common.project.facet.core.prefs.xml
?????文件?????????508??2017-11-27?09:56??.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2017-11-24?14:37??.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2017-11-24?14:37??.settings\org.eclipse.wst.jsdt.ui.superType.name
?????文件?????????343??2017-11-27?10:15??.settings\org.springframework.ide.eclipse.core.prefs
?????文件?????????462??2017-11-24?14:40??.springBeans
?????目錄???????????0??2017-11-27?09:56??src\
?????目錄???????????0??2017-11-25?21:00??src\action\
?????目錄???????????0??2017-11-24?14:52??src\action\Control\
?????文件????????3742??2017-11-25?20:51??src\action\Control\ControlProdAction.java
?????文件????????1846??2017-11-25?20:43??src\action\Control\ControlUserAction.java
?????文件????????2730??2017-11-25?20:39??src\action\Control\OrderAction.java
?????文件????????1471??2017-11-23?20:11??src\action\Control\ProductAction.java
?????文件????????3311??2017-11-25?18:26??src\action\Control\UploadPicAction.java
?????文件????????3407??2017-11-23?19:54??src\action\CreateImageAction.java
?????文件?????????831??2017-10-20?18:08??src\action\LoginAction-validation.xml
?????文件????????1941??2017-11-25?17:59??src\action\LoginAction.java
?????文件????????1988??2017-10-20?18:39??src\action\RegisterAction-validation.xml
?????文件?????????659??2017-11-24?14:53??src\action\RegisterAction.java
............此處省略120個文件信息