java验证码生成+redis
1.验证码工具类
import javax.imageio.ImageIO;import java.awt.*;
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;
/**
* @author jinchao
* @description TODO
* @date 2019/11/27 10:49
*/
public class VerifyCodeUtils {
//使用到Algerian字体，系统里没有的话需要安装字体，字体只显示大写，去掉了1,0,i,o几个容易混淆的字符
public static final String VERIFY_CODES = "23456789ABCDEFGHJKLMNPQRSTUVWXYZ";
public static final String PHONE_VERIFY_CODES = "0123456789";
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();
}
/**
* 使用数字生成验证码
* @param verifySize 验证码长度
* @return
*/
public static String generateNumVerifyCode(int verifySize){
return generateVerifyCode(verifySize,PHONE_VERIFY_CODES);
}
/**
* 生成随机验证码文件,并返回验证码值
* @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,并返回验证码值
* @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件
* @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.flush();
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{
BufferedImage image = getOutputImage(w,h,code);
ImageIO.write(image, "jpg", os);
}
/**
* 获取图片流
* @param w
* @param h
* @param code
* @return
* @throws IOException
*/
public static BufferedImage getOutputImage(int w, int h, 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);// 设置边框色
g2.fillRect(0, 0, w, h);
Color c = getRandColor(200, 250);
g2.setColor(c);// 设置背景色
g2.fillRect(0, 2, w, h-4);
//绘制干扰线
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;// 噪声率
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);// 使图片扭曲
g2.setColor(getRandColor(100, 160));
int fontSize = h-4;
Font font = new Font("Arial", Font.ITALIC, 25);
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;
}
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("D:\tmp");
int w = 80, h = 40;
for(int i = 0; i < 2; i++){
String verifyCode = generateVerifyCode(4);
File file = new File(dir, verifyCode + ".jpg");
outputImage(w, h, file, verifyCode);
}
}
}
2、验证码生成和验证类
import org.slf4j.Logger;import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import redis.clients.jedis.JedisCluster;
/**
* @author jinchao
* @description TODO
* @date 2019/11/27 10:59
*/
@Component
public class BaseCtl {
Logger logger = LoggerFactory.getLogger(BaseCtl.class);
private final static String USER_IMAGE_CODE_KEY = "user_image_code_key_%s";
@Autowired
private JedisCluster jedisCluster;
public String get4SaveImageVerifyCode(int codeNum,String key){
String verifyCode = VerifyCodeUtils.generateVerifyCode(codeNum).toLowerCase();
putApiImageVerifyCode(key, verifyCode);
return verifyCode;
}
public void putApiImageVerifyCode(String accountId, String verifyCode) {
String key = String.format(USER_IMAGE_CODE_KEY,accountId);
//写入缓存
jedisCluster.setex(key, 180, verifyCode.toUpperCase());
}
public boolean checkImageVerifyCode(String accountId,String userInputCode){
logger.info("checkImageVerifyCode param accountId={},userInputCode={}",accountId,userInputCode);
String key = String.format(USER_IMAGE_CODE_KEY,accountId);
String cacheValue = jedisCluster.get(key);
logger.info("checkImageVerifyCode方法根据key={},获取到的缓存中的验证码是{}",key,cacheValue);
if(userInputCode.toUpperCase().equals(cacheValue)){
return true;
}
return false;
}
}
3、配置bean
import com.qds.harbor.verify.BaseCtl;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author jinchao
* @description TODO
* @date 2019/11/27 11:13
*/
@Configuration
public class BaseCtlConfig {
@Bean
public BaseCtl baseCtl(){
return new BaseCtl();
}
}
4、接口
import com.octo.captcha.service.CaptchaServiceException;import com.qds.harbor.bean.dto.VerifyCodeResult;
import com.qds.harbor.bean.vo.ResponseResult;
import com.qds.harbor.service.IOwnerService;
import com.qds.harbor.service.impl.VerifyCodeService;
import com.qds.harbor.verify.BaseCtl;
import com.qds.harbor.verify.VerifyCodeUtils;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Locale;
/**
* 验证码
* Created by xuxiaoxing on 2018/6/20.
*/
@Controller
@RequestMapping("/verifycode")
public class VerifyCodeController {
@Autowired
VerifyCodeService verifyCodeService;
@Autowired
IOwnerService ownerService;
@Autowired
private ImageCaptchaService imageCaptchaService;
@Autowired
BaseCtl baseCtl;
Logger logger = Logger.getLogger(VerifyCodeController.class);
@RequestMapping(value = "captcha",method = RequestMethod.GET)
public void getCaptcha(HttpServletResponse response, String accountId, String accessToken) {
logger.info("[VerifyCodeController] getCaptcha accountId:" + accountId);
try {
//禁止图像缓存
response.setHeader("Cache-Control", "no-store");
response.setHeader("Pragma", "no-cache");
response.setDateHeader("Expires", 0L);
response.setContentType("image/jpeg");
String verifyCode = baseCtl.get4SaveImageVerifyCode(4,accountId);
VerifyCodeUtils.outputImage(80, 40, response.getOutputStream(), verifyCode);
} catch (IOException e) {
e.printStackTrace();
}
}
@RequestMapping(value = "/sendBindRoomVerifyCode", method = RequestMethod.GET)
@ResponseBody
public ResponseResult sendBindRoomVerifyCode(String foggyMobile, String verifyCode, String accountId, String accessToken) {
logger.info("[VerifyCodeController] sendBindRoomVerifyCode foggyMobile:" + foggyMobile + " , verifyCode:" + verifyCode + " ;accountId:" + accountId);
ResponseResult result = new ResponseResult();
try {
boolean checkImageVerifyCode = baseCtl.checkImageVerifyCode(accountId, verifyCode);
if (checkImageVerifyCode) {
//TODO
} else {
logger.info("[VerifyCodeController] sendBindMobileVerifyCode 验证码验证失败");
result.setMessage("验证码验证失败");
result.setSuccess(false);
}
} catch (CaptchaServiceException e) {
logger.info("[VerifyCodeController] sendBindMobileVerifyCode 验证码验证失败,error={}",e);
result.setMessage("验证码验证失败");
result.setSuccess(false);
}
return result;
}
}
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