| | |
| | | package com.yeshi.fanli.util;
|
| | |
|
| | | import java.awt.Color;
|
| | | import java.awt.Font;
|
| | | import java.awt.Graphics;
|
| | | import java.awt.Graphics2D;
|
| | | import java.awt.RenderingHints;
|
| | | import java.awt.geom.AffineTransform;
|
| | | import java.awt.image.BufferedImage;
|
| | | import java.io.File;
|
| | | import java.io.FileOutputStream;
|
| | | import java.io.IOException;
|
| | | import java.io.OutputStream;
|
| | | import java.util.Arrays;
|
| | | import java.util.Random;
|
| | |
|
| | | import javax.imageio.ImageIO;
|
| | |
|
| | | public class VerifyCodeUtil {
|
| | | // 使用到Algerian字体,系统里没有的话安装字体,字体只显示大写,去掉了1,0,i,o几个容易混淆的字 |
| | | public static final String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ";
|
| | | private static Random random = new Random();
|
| | |
|
| | | /**
|
| | | * 使用系统默认字符源生成验证码
|
| | | * |
| | | * @param verifySize
|
| | | * 验证码长度 |
| | | * @return
|
| | | */
|
| | | public static String generateVerifyCode(int verifySize) {
|
| | | return generateVerifyCode(verifySize, VERIFY_CODES);
|
| | | }
|
| | |
|
| | | /**
|
| | | * 使用指定源生成验证码
|
| | | * |
| | | * @param verifySize
|
| | | * 验证码长度 |
| | | * @param sources
|
| | | * 验证码字符源
|
| | | * @return
|
| | | */
|
| | | public static String generateVerifyCode(int verifySize, String sources) {
|
| | | if (sources == null || sources.length() == 0) {
|
| | | sources = VERIFY_CODES;
|
| | | }
|
| | | int codesLen = sources.length();
|
| | | Random rand = new Random(System.currentTimeMillis());
|
| | | StringBuilder verifyCode = new StringBuilder(verifySize);
|
| | | for (int i = 0; i < verifySize; i++) {
|
| | | verifyCode.append(sources.charAt(rand.nextInt(codesLen - 1)));
|
| | | }
|
| | | return verifyCode.toString();
|
| | | }
|
| | |
|
| | | /**
|
| | | * 生成随机验证码文并返回验证码 |
| | | * |
| | | * @param w
|
| | | * @param h
|
| | | * @param outputFile
|
| | | * @param verifySize
|
| | | * @return
|
| | | * @throws IOException
|
| | | */
|
| | | public static String outputVerifyImage(int w, int h, File outputFile, int verifySize) throws IOException {
|
| | | String verifyCode = generateVerifyCode(verifySize);
|
| | | outputImage(w, h, outputFile, verifyCode);
|
| | | return verifyCode;
|
| | | }
|
| | |
|
| | | /**
|
| | | * 输出随机验证码图片流,并返回验证码 |
| | | * |
| | | * @param w
|
| | | * @param h
|
| | | * @param os
|
| | | * @param verifySize
|
| | | * @return
|
| | | * @throws IOException
|
| | | */
|
| | | public static String outputVerifyImage(int w, int h, OutputStream os, int verifySize) throws IOException {
|
| | | String verifyCode = generateVerifyCode(verifySize);
|
| | | outputImage(w, h, os, verifyCode);
|
| | | return verifyCode;
|
| | | }
|
| | |
|
| | | /**
|
| | | * 生成指定验证码图像文 |
| | | * |
| | | * @param w
|
| | | * @param h
|
| | | * @param outputFile
|
| | | * @param code
|
| | | * @throws IOException
|
| | | */
|
| | | public static void outputImage(int w, int h, File outputFile, String code) throws IOException {
|
| | | if (outputFile == null) {
|
| | | return;
|
| | | }
|
| | | File dir = outputFile.getParentFile();
|
| | | if (!dir.exists()) {
|
| | | dir.mkdirs();
|
| | | }
|
| | | try {
|
| | | outputFile.createNewFile();
|
| | | FileOutputStream fos = new FileOutputStream(outputFile);
|
| | | outputImage(w, h, fos, code);
|
| | | fos.close();
|
| | | } catch (IOException e) {
|
| | | throw e;
|
| | | }
|
| | | }
|
| | |
|
| | | /**
|
| | | * 输出指定验证码图片流
|
| | | * |
| | | * @param w
|
| | | * @param h
|
| | | * @param os
|
| | | * @param code
|
| | | * @throws IOException
|
| | | */
|
| | | public static void outputImage(int w, int h, OutputStream os, String code) throws IOException {
|
| | | int verifySize = code.length();
|
| | | BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
|
| | | Random rand = new Random();
|
| | | Graphics2D g2 = image.createGraphics();
|
| | | g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
|
| | | Color[] colors = new Color[5];
|
| | | Color[] colorSpaces = new Color[] { Color.WHITE, Color.CYAN, Color.GRAY, Color.LIGHT_GRAY, Color.MAGENTA,
|
| | | Color.ORANGE, Color.PINK, Color.YELLOW };
|
| | | float[] fractions = new float[colors.length];
|
| | | for (int i = 0; i < colors.length; i++) {
|
| | | colors[i] = colorSpaces[rand.nextInt(colorSpaces.length)];
|
| | | fractions[i] = rand.nextFloat();
|
| | | }
|
| | | Arrays.sort(fractions);
|
| | |
|
| | | g2.setColor(Color.GRAY);// 设置边框 |
| | | g2.fillRect(0, 0, w, h);
|
| | |
|
| | | Color c = getRandColor(200, 250);
|
| | | g2.setColor(c);// 设置背景 |
| | | g2.fillRect(0, 2, w, h - 4);
|
| | |
|
| | | // 绘制干扰 |
| | | Random random = new Random();
|
| | | g2.setColor(getRandColor(160, 200));// 设置线条的颜色 |
| | | for (int i = 0; i < 20; i++) {
|
| | | int x = random.nextInt(w - 1);
|
| | | int y = random.nextInt(h - 1);
|
| | | int xl = random.nextInt(6) + 1;
|
| | | int yl = random.nextInt(12) + 1;
|
| | | g2.drawLine(x, y, x + xl + 40, y + yl + 20);
|
| | | }
|
| | |
|
| | | // 添加噪点
|
| | | float yawpRate = 0.05f;// 噪声 |
| | | int area = (int) (yawpRate * w * h);
|
| | | for (int i = 0; i < area; i++) {
|
| | | int x = random.nextInt(w);
|
| | | int y = random.nextInt(h);
|
| | | int rgb = getRandomIntColor();
|
| | | image.setRGB(x, y, rgb);
|
| | | }
|
| | |
|
| | | shear(g2, w, h, c);// 使图片扭 |
| | |
|
| | | g2.setColor(getRandColor(100, 160));
|
| | | int fontSize = h - 4;
|
| | | Font font = new Font("Algerian", Font.ITALIC, fontSize);
|
| | | g2.setFont(font);
|
| | | char[] chars = code.toCharArray();
|
| | | for (int i = 0; i < verifySize; i++) {
|
| | | AffineTransform affine = new AffineTransform();
|
| | | affine.setToRotation(Math.PI / 4 * rand.nextDouble() * (rand.nextBoolean() ? 1 : -1),
|
| | | (w / verifySize) * i + fontSize / 2, h / 2);
|
| | | g2.setTransform(affine);
|
| | | g2.drawChars(chars, i, 1, ((w - 10) / verifySize) * i + 5, h / 2 + fontSize / 2 - 10);
|
| | | }
|
| | |
|
| | | g2.dispose();
|
| | | ImageIO.write(image, "JPEG", os);
|
| | | }
|
| | |
|
| | | private static Color getRandColor(int fc, int bc) {
|
| | | if (fc > 255)
|
| | | fc = 255;
|
| | | if (bc > 255)
|
| | | bc = 255;
|
| | | int r = fc + random.nextInt(bc - fc);
|
| | | int g = fc + random.nextInt(bc - fc);
|
| | | int b = fc + random.nextInt(bc - fc);
|
| | | return new Color(r, g, b);
|
| | | }
|
| | |
|
| | | private static int getRandomIntColor() {
|
| | | int[] rgb = getRandomRgb();
|
| | | int color = 0;
|
| | | for (int c : rgb) {
|
| | | color = color << 8;
|
| | | color = color | c;
|
| | | }
|
| | | return color;
|
| | | }
|
| | |
|
| | | private static int[] getRandomRgb() {
|
| | | int[] rgb = new int[3];
|
| | | for (int i = 0; i < 3; i++) {
|
| | | rgb[i] = random.nextInt(255);
|
| | | }
|
| | | return rgb;
|
| | | }
|
| | |
|
| | | private static void shear(Graphics g, int w1, int h1, Color color) {
|
| | | shearX(g, w1, h1, color);
|
| | | shearY(g, w1, h1, color);
|
| | | }
|
| | |
|
| | | private static void shearX(Graphics g, int w1, int h1, Color color) {
|
| | |
|
| | | int period = random.nextInt(2);
|
| | |
|
| | | boolean borderGap = true;
|
| | | int frames = 1;
|
| | | int phase = random.nextInt(2);
|
| | |
|
| | | for (int i = 0; i < h1; i++) {
|
| | | double d = (double) (period >> 1)
|
| | | * Math.sin((double) i / (double) period + (6.2831853071795862D * (double) phase) / (double) frames);
|
| | | g.copyArea(0, i, w1, 1, (int) d, 0);
|
| | | if (borderGap) {
|
| | | g.setColor(color);
|
| | | g.drawLine((int) d, i, 0, i);
|
| | | g.drawLine((int) d + w1, i, w1, i);
|
| | | }
|
| | | }
|
| | |
|
| | | }
|
| | |
|
| | | private static void shearY(Graphics g, int w1, int h1, Color color) {
|
| | |
|
| | | int period = random.nextInt(40) + 10; // 50;
|
| | |
|
| | | boolean borderGap = true;
|
| | | int frames = 20;
|
| | | int phase = 7;
|
| | | for (int i = 0; i < w1; i++) {
|
| | | double d = (double) (period >> 1)
|
| | | * Math.sin((double) i / (double) period + (6.2831853071795862D * (double) phase) / (double) frames);
|
| | | g.copyArea(i, 0, 1, h1, 0, (int) d);
|
| | | if (borderGap) {
|
| | | g.setColor(color);
|
| | | g.drawLine(i, (int) d, i, 0);
|
| | | g.drawLine(i, (int) d + h1, i, h1);
|
| | | }
|
| | |
|
| | | }
|
| | |
|
| | | }
|
| | |
|
| | | public static void main(String[] args) throws IOException {
|
| | | File dir = new File("F:/verifies");
|
| | | int w = 200, h = 80;
|
| | | for (int i = 0; i < 50; i++) {
|
| | | String verifyCode = generateVerifyCode(4);
|
| | | File file = new File(dir, verifyCode + ".jpg");
|
| | | outputImage(w, h, file, verifyCode);
|
| | | }
|
| | | }
|
| | | }
|
| | | package com.yeshi.fanli.util; |
| | | |
| | | import sun.misc.BASE64Encoder; |
| | | |
| | | import javax.imageio.ImageIO; |
| | | import java.awt.*; |
| | | import java.awt.geom.AffineTransform; |
| | | import java.awt.image.BufferedImage; |
| | | import java.io.*; |
| | | import java.util.Arrays; |
| | | import java.util.Random; |
| | | |
| | | public class VerifyCodeUtil { |
| | | // 使用到Algerian字体,系统里没有的话安装字体,字体只显示大写,去掉了1,0,i,o几个容易混淆的字 |
| | | public static final String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ"; |
| | | private static Random random = new Random(); |
| | | |
| | | /** |
| | | * 使用系统默认字符源生成验证码 |
| | | * |
| | | * @param verifySize 验证码长度 |
| | | * @return |
| | | */ |
| | | public static String generateVerifyCode(int verifySize) { |
| | | return generateVerifyCode(verifySize, VERIFY_CODES); |
| | | } |
| | | |
| | | /** |
| | | * 使用指定源生成验证码 |
| | | * |
| | | * @param verifySize 验证码长度 |
| | | * @param sources 验证码字符源 |
| | | * @return |
| | | */ |
| | | public static String generateVerifyCode(int verifySize, String sources) { |
| | | if (sources == null || sources.length() == 0) { |
| | | sources = VERIFY_CODES; |
| | | } |
| | | int codesLen = sources.length(); |
| | | Random rand = new Random(System.currentTimeMillis()); |
| | | StringBuilder verifyCode = new StringBuilder(verifySize); |
| | | for (int i = 0; i < verifySize; i++) { |
| | | verifyCode.append(sources.charAt(rand.nextInt(codesLen - 1))); |
| | | } |
| | | return verifyCode.toString(); |
| | | } |
| | | |
| | | /** |
| | | * 生成随机验证码文并返回验证码 |
| | | * |
| | | * @param w |
| | | * @param h |
| | | * @param outputFile |
| | | * @param verifySize |
| | | * @return |
| | | * @throws IOException |
| | | */ |
| | | public static String outputVerifyImage(int w, int h, File outputFile, int verifySize) throws IOException { |
| | | String verifyCode = generateVerifyCode(verifySize); |
| | | outputImage(w, h, outputFile, verifyCode); |
| | | return verifyCode; |
| | | } |
| | | |
| | | /** |
| | | * 输出随机验证码图片流,并返回验证码 |
| | | * |
| | | * @param w |
| | | * @param h |
| | | * @param os |
| | | * @param verifySize |
| | | * @return |
| | | * @throws IOException |
| | | */ |
| | | public static String outputVerifyImage(int w, int h, OutputStream os, int verifySize) throws IOException { |
| | | String verifyCode = generateVerifyCode(verifySize); |
| | | outputImage(w, h, os, verifyCode); |
| | | return verifyCode; |
| | | } |
| | | |
| | | /** |
| | | * 生成指定验证码图像文 |
| | | * |
| | | * @param w |
| | | * @param h |
| | | * @param outputFile |
| | | * @param code |
| | | * @throws IOException |
| | | */ |
| | | public static void outputImage(int w, int h, File outputFile, String code) throws IOException { |
| | | if (outputFile == null) { |
| | | return; |
| | | } |
| | | File dir = outputFile.getParentFile(); |
| | | if (!dir.exists()) { |
| | | dir.mkdirs(); |
| | | } |
| | | try { |
| | | outputFile.createNewFile(); |
| | | FileOutputStream fos = new FileOutputStream(outputFile); |
| | | outputImage(w, h, fos, code); |
| | | fos.close(); |
| | | } catch (IOException e) { |
| | | throw e; |
| | | } |
| | | } |
| | | |
| | | private static BufferedImage getVerifyImages(int w, int h, String code) { |
| | | |
| | | int verifySize = code.length(); |
| | | BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); |
| | | Random rand = new Random(); |
| | | Graphics2D g2 = image.createGraphics(); |
| | | g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); |
| | | Color[] colors = new Color[5]; |
| | | Color[] colorSpaces = new Color[]{Color.WHITE, Color.CYAN, Color.GRAY, Color.LIGHT_GRAY, Color.MAGENTA, |
| | | Color.ORANGE, Color.PINK, Color.YELLOW}; |
| | | float[] fractions = new float[colors.length]; |
| | | for (int i = 0; i < colors.length; i++) { |
| | | colors[i] = colorSpaces[rand.nextInt(colorSpaces.length)]; |
| | | fractions[i] = rand.nextFloat(); |
| | | } |
| | | Arrays.sort(fractions); |
| | | |
| | | g2.setColor(Color.GRAY);// 设置边框 |
| | | g2.fillRect(0, 0, w, h); |
| | | |
| | | Color c = getRandColor(200, 250); |
| | | g2.setColor(c);// 设置背景 |
| | | g2.fillRect(0, 2, w, h - 4); |
| | | |
| | | // 绘制干扰 |
| | | Random random = new Random(); |
| | | g2.setColor(getRandColor(160, 200));// 设置线条的颜色 |
| | | for (int i = 0; i < 20; i++) { |
| | | int x = random.nextInt(w - 1); |
| | | int y = random.nextInt(h - 1); |
| | | int xl = random.nextInt(6) + 1; |
| | | int yl = random.nextInt(12) + 1; |
| | | g2.drawLine(x, y, x + xl + 40, y + yl + 20); |
| | | } |
| | | |
| | | // 添加噪点 |
| | | float yawpRate = 0.05f;// 噪声 |
| | | int area = (int) (yawpRate * w * h); |
| | | for (int i = 0; i < area; i++) { |
| | | int x = random.nextInt(w); |
| | | int y = random.nextInt(h); |
| | | int rgb = getRandomIntColor(); |
| | | image.setRGB(x, y, rgb); |
| | | } |
| | | |
| | | shear(g2, w, h, c);// 使图片扭 |
| | | |
| | | g2.setColor(getRandColor(100, 160)); |
| | | int fontSize = h - 4; |
| | | Font font = new Font("Algerian", Font.ITALIC, fontSize); |
| | | g2.setFont(font); |
| | | char[] chars = code.toCharArray(); |
| | | for (int i = 0; i < verifySize; i++) { |
| | | AffineTransform affine = new AffineTransform(); |
| | | affine.setToRotation(Math.PI / 4 * rand.nextDouble() * (rand.nextBoolean() ? 1 : -1), |
| | | (w / verifySize) * i + fontSize / 2, h / 2); |
| | | g2.setTransform(affine); |
| | | g2.drawChars(chars, i, 1, ((w - 10) / verifySize) * i + 5, h / 2 + fontSize / 2 - 10); |
| | | } |
| | | |
| | | g2.dispose(); |
| | | |
| | | return image; |
| | | } |
| | | |
| | | /** |
| | | * 输出指定验证码图片流 |
| | | * |
| | | * @param w |
| | | * @param h |
| | | * @param os |
| | | * @param code |
| | | * @throws IOException |
| | | */ |
| | | public static void outputImage(int w, int h, OutputStream os, String code) throws IOException { |
| | | BufferedImage image = getVerifyImages(w, h, code); |
| | | ImageIO.write(image, "JPEG", os); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * 获取Base64的验证码 |
| | | * |
| | | * @param w |
| | | * @param h |
| | | * @param code |
| | | * @return |
| | | */ |
| | | public static String getVerifyImagesBase64(int w, int h, String code) { |
| | | BufferedImage image = getVerifyImages(w, h, code); |
| | | //输出流 |
| | | ByteArrayOutputStream stream = new ByteArrayOutputStream(); |
| | | try { |
| | | ImageIO.write(image, "png", stream); |
| | | } catch (IOException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | byte[] bytes = stream.toByteArray();//转换成字节 |
| | | BASE64Encoder encoder = new BASE64Encoder(); |
| | | String base64 = encoder.encodeBuffer(bytes).trim();//转换成base64串 |
| | | base64 = base64.replaceAll("\n", "").replaceAll("\r", "");//删除 \r\n |
| | | return base64; |
| | | } |
| | | |
| | | |
| | | private static Color getRandColor(int fc, int bc) { |
| | | if (fc > 255) |
| | | fc = 255; |
| | | if (bc > 255) |
| | | bc = 255; |
| | | int r = fc + random.nextInt(bc - fc); |
| | | int g = fc + random.nextInt(bc - fc); |
| | | int b = fc + random.nextInt(bc - fc); |
| | | return new Color(r, g, b); |
| | | } |
| | | |
| | | private static int getRandomIntColor() { |
| | | int[] rgb = getRandomRgb(); |
| | | int color = 0; |
| | | for (int c : rgb) { |
| | | color = color << 8; |
| | | color = color | c; |
| | | } |
| | | return color; |
| | | } |
| | | |
| | | private static int[] getRandomRgb() { |
| | | int[] rgb = new int[3]; |
| | | for (int i = 0; i < 3; i++) { |
| | | rgb[i] = random.nextInt(255); |
| | | } |
| | | return rgb; |
| | | } |
| | | |
| | | private static void shear(Graphics g, int w1, int h1, Color color) { |
| | | shearX(g, w1, h1, color); |
| | | shearY(g, w1, h1, color); |
| | | } |
| | | |
| | | private static void shearX(Graphics g, int w1, int h1, Color color) { |
| | | |
| | | int period = random.nextInt(2); |
| | | |
| | | boolean borderGap = true; |
| | | int frames = 1; |
| | | int phase = random.nextInt(2); |
| | | |
| | | for (int i = 0; i < h1; i++) { |
| | | double d = (double) (period >> 1) |
| | | * Math.sin((double) i / (double) period + (6.2831853071795862D * (double) phase) / (double) frames); |
| | | g.copyArea(0, i, w1, 1, (int) d, 0); |
| | | if (borderGap) { |
| | | g.setColor(color); |
| | | g.drawLine((int) d, i, 0, i); |
| | | g.drawLine((int) d + w1, i, w1, i); |
| | | } |
| | | } |
| | | |
| | | } |
| | | |
| | | private static void shearY(Graphics g, int w1, int h1, Color color) { |
| | | |
| | | int period = random.nextInt(40) + 10; // 50; |
| | | |
| | | boolean borderGap = true; |
| | | int frames = 20; |
| | | int phase = 7; |
| | | for (int i = 0; i < w1; i++) { |
| | | double d = (double) (period >> 1) |
| | | * Math.sin((double) i / (double) period + (6.2831853071795862D * (double) phase) / (double) frames); |
| | | g.copyArea(i, 0, 1, h1, 0, (int) d); |
| | | if (borderGap) { |
| | | g.setColor(color); |
| | | g.drawLine(i, (int) d, i, 0); |
| | | g.drawLine(i, (int) d + h1, i, h1); |
| | | } |
| | | |
| | | } |
| | | |
| | | } |
| | | |
| | | public static void main(String[] args) throws IOException { |
| | | for(int i=0;i<100;i++) { |
| | | File f = new File("F:/verifies/"+i+".png"); |
| | | outputImage(300, 150, f, "long"); |
| | | } } |
| | | } |