Struts2 生成图形验证码及进行验证码验证-修改后代码(一)

?验证码代码取之网络，但是网络上代码都不完整，因此修改后发上来大家分享。

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先看看效果：

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一、生成图形验证码的Action

package com.wjt276.co.web.actions;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import com.wjt276.co.managers.ValidateImageManager;@SuppressWarnings("serial")public class ValidateImgAction extends BaseAction  {/** * 用于保存已经生成的图形验证码输入流对象，以便在前台显示图形  */private ByteArrayInputStream inputStream;/** * 图形验证码创建接口 */private ValidateImageManager validateImageManager;/** * 图形验证码图形的宽度 */private int width;/** * 图形验证码图形的高度 */private int height;/** * 图形验证码图形上字体大小 */private int fontSize;/** * 生成验证码的位数 */private int codeLength;/** * 图形验证码的图形类型 */private String contentType;public String execute() throws Exception{//保存已经生成好的验证码Key.validateCode = createInputStream(ValidateImageManager.Disturb_Type_Complex);return SUCCESS;}/** * 在Action层创建图形验证码，并将创建好的图形字节流保存到inputStream对象中，并返回验证码 * @param disturbType 绘制干扰线的类型；<br/> * 0：不绘制干扰线；<br/> * 1：绘制单一色调的干扰线;<br/> * 2：绘制复杂的干扰线 * @return 返回已经生成好的验证码字符 * @throws IOException  */protected String createInputStream(int disturbType) throws IOException {ByteArrayOutputStream bos = new ByteArrayOutputStream();String validateCode = null;validateCode = validateImageManager.createValidateCode(disturbType,this.getFontSize(), bos, this.getWidth(), this.getHeight(), getText("System.validateCode",ValidateImageManager.Default_ValidateCode), this.getCodeLength());inputStream = new ByteArrayInputStream(bos.toByteArray());bos.close();return validateCode;}//------------以下为getXXX/setXXX方法-------------------------public ByteArrayInputStream getInputStream() {return inputStream;}public void setInputStream(ByteArrayInputStream inputStream) {this.inputStream = inputStream;}public ValidateImageManager getValidateImageManager() {return validateImageManager;}public void setValidateImageManager(ValidateImageManager validateImageManager) {this.validateImageManager = validateImageManager;}public String getContentType() {if(null == this.contentType || "".equals(this.contentType.trim())){return Key.DEFAULT_VALIDATEIMG_CONTENT_TYPE;}return contentType;}public void setContentType(String contentType) {this.contentType = contentType;}public int getWidth() {if(this.width < Key.DEFAULT_VALIDATEIMG_WIDTH){return Key.DEFAULT_VALIDATEIMG_WIDTH;}return width;}public void setWidth(int width) {this.width = width;}public int getHeight() {if(this.height < Key.DEFAULT_VALIDATEIMG_HEIGHT){return Key.DEFAULT_VALIDATEIMG_HEIGHT;}return height;}public void setHeight(int height) {this.height = height;}public int getFontSize() {if(this.fontSize < Key.DEFAULT_VALIDATEIMG_FONT_SIZE){return Key.DEFAULT_VALIDATEIMG_FONT_SIZE;}return fontSize;}public void setFontSize(int fontSize) {this.fontSize = fontSize;}public int getCodeLength() {if(this.codeLength < Key.DEFAULT_VALIDATEIMG_CODE_LENGTH){return Key.DEFAULT_VALIDATEIMG_CODE_LENGTH;}return codeLength;}public void setCodeLength(int codeLength) {this.codeLength = codeLength;}}

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二、生成图形验证码的接口ValidateImageManager

package com.wjt276.co.managers;import java.io.ByteArrayOutputStream;public interface ValidateImageManager {/** * 默认验证字符串 */public static final String Default_ValidateCode = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";/** * 默认绘制干扰线的类型（不绘制干扰线） */public static final int Disturb_Type_Default = 0;/** * 绘制单一色调的干扰线 */public static final int Disturb_Type_Simple = 1;/** * 绘制复杂的干扰线 */public static final int Disturb_Type_Complex = 2;/** * 生成验证图片并返回验证码 *  * @param disturbType 绘制干扰线的类型；<br/> * 0：不绘制干扰线；<br/> * 1：绘制单一色调的干扰线;<br/> * 2：绘制复杂的干扰线 * @param fontSize 图形上验证码字体的大小 * @param bos 字节流，用于返回生成的图形验证码字节流，并显示于前台 * @param width 图形的宽度 * @param height 图形的高度 * @param validateCode 默认的验证码编码  * @param codeLength 验证码字符长度 * @return 返回生成好的验证码字符 */public abstract String createValidateCode(int disturbType, int fontSize,ByteArrayOutputStream bos, int width, int height,String validateCode, int codeLength);}

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一、生成图形验证码的实现ValidateImageManagerImpl

package com.wjt276.co.managers.impl;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.image.BufferedImage;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.util.Random;import javax.imageio.ImageIO;import javax.imageio.stream.ImageOutputStream;import com.wjt276.co.managers.ValidateImageManager;public class ValidateImageManagerImpl extends AbstractManager implementsValidateImageManager {/** * 生成验证图片并返回验证码 *  * @param disturbType 绘制干扰线的类型；<br/> * 0：不绘制干扰线；<br/>1：绘制单一色调的干扰线;<br/>2：绘制复杂的干扰线 * @param fontSize 图形上验证码字体的大小 * @param bos 字节流，用于返回生成的图形验证码字节流，并显示于前台 * @param width 图形的宽度 * @param height 图形的高度 * @param validateCode 默认的验证码编码  * @param codeLength 验证码字符长度 * @return 返回生成好的验证码字符 */public String createValidateCode(int disturbType,  int fontSize, ByteArrayOutputStream bos,  int width,  int height, String validateCode,  int codeLength) {BufferedImage bImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);Graphics g = bImg.getGraphics();Random random = new Random();if (null == validateCode || validateCode.isEmpty()) {validateCode = Default_ValidateCode;}if (fontSize >= height) {fontSize = height - 1;}drawOutline(g, width, height);switch (disturbType) {case Disturb_Type_Simple:drawSimpleDisturb(g, random, width, height);break;case Disturb_Type_Complex:drawDisturb(g, random, width, height);break;default:break;}String code = drawCode(g, random, validateCode, codeLength, width,height, fontSize);g.dispose();try {ImageOutputStream imOut = ImageIO.createImageOutputStream(bos);ImageIO.write(bImg, "JPEG", imOut);imOut.close();} catch (IOException e) {e.printStackTrace();}return code;}/** * 绘制边框 *  * @param g * @param width * @param height */private static void drawOutline(Graphics g, int width, int height) {g.setColor(Color.white);g.fillRect(0, 0, width, height);g.setColor(Color.BLACK);g.drawRect(0, 0, width - 1, height - 1);}/** * 绘制比较复杂的干扰线 *  * @param g * @param random * @param width * @param height */private static void drawDisturb(Graphics g, Random random, int width,int height) {int x, y, x1, y1;for (int i = 0; i < width; i++) {x = random.nextInt(width);y = random.nextInt(height);x1 = random.nextInt(12);y1 = random.nextInt(12);g.setColor(getRandomColor(random, 120, 255));g.drawLine(x, y, x + x1, y + y1);g.fillArc(x, y, x1, y1, random.nextInt(360), random.nextInt(360));}}/** * 绘制简单的干扰线 *  * @param g * @param random * @param width * @param height */private static void drawSimpleDisturb(Graphics g, Random random, int width,int height) {g.setColor(getRandomColor(random, 160, 200));for (int i = 0; i < 155; i++) {int x = random.nextInt(width);int y = random.nextInt(height);int xl = random.nextInt(12);int yl = random.nextInt(12);g.drawLine(x, y, x + xl, y + yl);}}/** * 取得随机颜色 *  * @param random * @param pMin * @param pMax * @return */private static Color getRandomColor(Random random, int pMin, int pMax) {pMax = (Math.abs(pMax) > 255 ? 255 : Math.abs(pMax));pMin = (Math.abs(pMin) > 255 ? 255 : Math.abs(pMin));int r = pMin + random.nextInt(Math.abs(pMax - pMin));int g = pMin + random.nextInt(Math.abs(pMax - pMin));int b = pMin + random.nextInt(Math.abs(pMax - pMin));return new Color(r, g, b);}/** * 绘制验证码 *  * @param g * @param random * @param validateCode * @param codeLength * @param width * @param height * @param fontSize * @return */private static String drawCode(Graphics g, Random random,String validateCode, int codeLength, int width, int height,int fontSize) {int validateCodeLength = validateCode.length();Font font1 = new Font("Verdana", Font.BOLD, fontSize);Font font2 = new Font("serif", Font.BOLD, fontSize);StringBuffer sb = new StringBuffer();int x, y;for (int i = 0; i < codeLength; i++) {x = (width / codeLength - 1) * i+ random.nextInt(width / (codeLength * 2));y = random.nextInt(height - fontSize) + fontSize;sb.append(getRandomChar(validateCode, validateCodeLength, random));g.setColor(getRandomColor(random, 70, 150));if (sb.substring(i).getBytes().length > 1)g.setFont(font2);elseg.setFont(font1);g.drawString(sb.substring(i), x, y);}return sb.toString();}/** * 取得随机字符 *  * @param validateCode * @param validateCodeLength * @param random * @return */private static char getRandomChar(String validateCode,int validateCodeLength, Random random) {return validateCode.charAt(random.nextInt(validateCodeLength));}}

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1 楼 WSZ1102.shu 2010-12-01 兄弟，你的qq号是多少，可以吧这个的源代码发给我吗？
我的qq是274405923
邮箱也可以：WSZ1102.shu@163.com