Java实现阿里云、QQ、网易邮箱JavaMail邮箱验证码 -《一抹茶-csdn》

什么是JavaMail？

JavaMail，顾名思义，提供给开发者处理电子邮件相关的编程接口。它是Sun发布的用来处理email的API。它可以方便地执行一些常用的邮件传输。我们可以基于JavaMail开发出类似于Microsoft Outlook的应用程序。

使用JavaMail

本地邮箱服务器：

1.环境搭建：

本地需要安装两个软件和一个mail.jar：

易邮邮箱服务器下载：
foxmailSetup下载
mail.jar下载

易邮邮箱服务器配置：
安装：

配置：

设置邮箱服务器：

更改为自己喜欢的域：

创建三个用户：
service：用于服务；

user01：普通用户；

user02：普通用户；

foxmail配置：
安装：

配置：

user01：

ps：由于是本地所以pop和smtp都配置成localhost

user02：

创建：

结果预览：

2.项目创建：

3.代码编写：

MailUtils.java

package com.yimocha.utils;import java.util.Properties;import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.Message.RecipientType;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;/*** 邮件发送工具类* * @author yimocha**/
public class MailUtils {/*** 发送邮件的方法* * @param to*            :给谁发邮件* @param outMessgae*            ：消息内容* @throws MessagingException* @throws Exception*/public static void sendMail(String to, String outMessgae) throws Exception {// 1.创建连接对象，连接到服务器Properties props = new Properties();Session session = Session.getInstance(props, new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication("service@yimocha.com", "123");//邮箱和密码}});// 2.创建邮件对象Message message = new MimeMessage(session);// 2.1 设置发件人：message.setFrom(new InternetAddress("service@yimocha.com"));// 2.2 设置收件人：message.setRecipient(RecipientType.TO, new InternetAddress(to));// 2.3 设置邮件的主题：message.setSubject("来自 service@yimocha.com 邮件");// 2.4 设置邮件的正文：message.setContent("<h1>尊敬的用户！您的验证是:<a href=''>"+outMessgae+"</a></h1>", "text/html;charset=UTF-8");// 3.发送一份邮件Transport.send(message);}
}

LocalHostTest.java

package com.yimocha.test;import com.yimocha.utils.MailUtils;
import com.yimocha.utils.VerifyCodeUtils;public class LocalHostTest {public static void main(String[] args) throws Exception {// 生成随机字串String verifyCode = VerifyCodeUtils.generateVerifyCode(4);// 发送邮件MailUtils.sendMail("user02@yimocha.com", verifyCode);}
}

VerifyCodeUtils.java

package com.yimocha.utils;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 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";private static Random random = new Random();/*** 验证码对象* * @author zhou-baicheng**/public static class Verify {private String code;// 如 1 + 2private Integer value;// 如 3public String getCode() {return code;}public void setCode(String code) {this.code = code;}public Integer getValue() {return value;}public void setValue(Integer value) {this.value = value;}}/*** 使用系统默认字符源生成验证码* * @param verifySize*            验证码长度* @return*/public static Verify generateVerify() {int number1 = new Random().nextInt(10) + 1;;int number2 = new Random().nextInt(10) + 1;;Verify entity = new Verify();entity.setCode(number1 + " x " + number2);entity.setValue(number1 + number2);return entity;}/*** 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.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("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, "jpg", 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);}}}

4.运行效果：

qq邮箱服务器：

1.环境搭建：

上面环境已经搭建好了
现在来开启QQ的smtp

往下拉

3.代码编写：

MailUtils

package com.yimocha.utils;import java.util.Properties;import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.Message.RecipientType;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;/*** 邮件发送工具类* * @author yimocha**/
public class MailUtils {/*** 发送邮件的方法* * @param to*            :给谁发邮件* @param outMessgae*            ：消息内容* @throws MessagingException* @throws Exception*/public static void sendMail(String to, String outMessgae) throws Exception {// 1.创建连接对象，连接到服务器Properties props = new Properties();props.put("mail.smtp.host", "smtp.qq.com"); // qq        //props.setProperty("mail.transport.protocol", "smtp"); // props.setProperty("mail.smtp.auth", "true");     //props.put("mail.smtp.port", "25");props.setProperty("mail.debug", "true");Session session = Session.getInstance(props, new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication("XXX@qq.com", "bkajmaytlrdhdhdc");}});// 2.创建邮件对象Message message = new MimeMessage(session);// 2.1 设置发件人：message.setFrom(new InternetAddress("XXX@qq.com"));// 2.2 设置收件人：message.setRecipient(RecipientType.TO, new InternetAddress(to));// 2.3 设置邮件的主题：message.setSubject("来自 XXX@qq.com 的邮件");// 2.4 设置邮件的正文：message.setContent("<h1>尊敬的用户！您的验证是:<a href=''>" + outMessgae + "</a></h1>", "text/html;charset=UTF-8");// 3.发送一份邮件Transport.send(message);}
}

LocalHostTest.java

4.运行效果：

网易邮箱服务器：

1.环境搭建：

首先启用网易邮箱的pops / smtp

按照网易的提示，进行激活，我的已经激活了。

3.代码编写：

MailUtils.java

package com.yimocha.utils;import java.util.Properties;import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.Message.RecipientType;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;/*** 邮件发送工具类* * @author yimocha**/
public class MailUtils {/*** 发送邮件的方法* * @param to*            :给谁发邮件* @param outMessgae*            ：消息内容* @throws MessagingException* @throws Exception*/public static void sendMail(String to, String outMessgae) throws Exception {// 1.创建连接对象，连接到服务器Properties props = new Properties();props.setProperty("mail.debug", "true");// 开启debug调试props.setProperty("mail.smtp.auth", "true");// 发送服务器需要身份验证props.setProperty("mail.host", "smtp.163.com");// 设置邮件服务器主机名props.setProperty("mail.transport.protocol", "smtp");// 发送邮件协议名称Session session = Session.getInstance(props, new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication("yimatcha@163.com", "你的授权密码");}});// 2.创建邮件对象Message message = new MimeMessage(session);// 2.1 设置发件人：message.setFrom(new InternetAddress("yimatcha@163.com"));// 2.2 设置收件人：message.setRecipient(RecipientType.TO, new InternetAddress(to));// 2.3 设置邮件的主题：message.setSubject("来自 yimatcha@163.com 的邮件");// 2.4 设置邮件的正文：message.setContent("<h1>尊敬的用户！您的验证是:<a href=''>" + outMessgae + "</a></h1>", "text/html;charset=UTF-8");// 3.发送一份邮件Transport.send(message);}
}

4.运行效果：

阿里云企业邮箱服务器：

1.环境搭建：

首先您需要有阿里云企业账号：
注册邮箱，购买主机送免费的企业邮箱

mail.host： 表示的是企业邮箱如： smtp.zhshx.top --解释-- smtp.企业邮箱
阿里云企业邮箱默认用户是

购买的主机，需要激活；
详情可参考这篇Lovnx的博客

3.代码编写：

MailUtils.java

package com.yimocha.utils;import java.util.Properties;import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.Message.RecipientType;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;/*** 邮件发送工具类* * @author yimocha**/
public class MailUtils {/*** 发送邮件的方法* * @param to*            :给谁发邮件* @param outMessgae*            ：消息内容* @throws MessagingException* @throws Exception*/public static void sendMail(String to, String outMessgae) throws Exception {// 1.创建连接对象，连接到服务器Properties props = new Properties();props.setProperty("mail.debug", "true");// 开启debug调试props.setProperty("mail.smtp.auth", "true");// 发送服务器需要身份验证props.setProperty("mail.host", "smtp.zhshx.top");// 设置邮件服务器主机名props.setProperty("mail.transport.protocol", "smtp");// 发送邮件协议名称Session session = Session.getInstance(props, new Authenticator() {@Overrideprotected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication("service@zhshx.top", "您的企业邮箱密码");}});// 2.创建邮件对象Message message = new MimeMessage(session);// 2.1 设置发件人：message.setFrom(new InternetAddress("service@zhshx.top"));// 2.2 设置收件人：message.setRecipient(RecipientType.TO, new InternetAddress(to));// 2.3 设置邮件的主题：message.setSubject("来自 service@zhshx.top 的邮件");// 2.4 设置邮件的正文：message.setContent("<h1>尊敬的用户！您的验证是:<a href=''>" + outMessgae + "</a></h1>", "text/html;charset=UTF-8");// 3.发送一份邮件Transport.send(message);}
}

4.运行效果：