《CSDN》javaweb项目视频学习笔记02

怎样通过验证码来修改密码:

首先说怎样实现验证码的发送:一共是三部:配置QQ邮箱,导入依赖jar包 ,代码撰写

1:QQ邮箱设置

1:第一步 ,打开QQ邮箱(地址:https://mail.qq.com/);

2:第二步 ,登录后点击设置《CSDN》javaweb项目视频学习笔记02

3:第三步,点击账户

《CSDN》javaweb项目视频学习笔记02

4:第四步:开启这里的服务:

《CSDN》javaweb项目视频学习笔记02

第五步:生成随机授权码:

《CSDN》javaweb项目视频学习笔记02

第六步,开启成功后会获得一个授权码,记录下来(代码中需要使用,这个授权码并不是一定的 );

《CSDN》javaweb项目视频学习笔记02

导入jar包:activation.jar、commons-email-1.x.jar、mail.jar

我这里直接百度云免费分享:

链接:https://pan.baidu.com/s/1t34_QYeTJMEkZr5kUfmx2A 
提取码:x4oy 
--来自百度网盘超级会员V3的分享

最后就是代码了:

package 验证码学习;

import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

/**
 * @author ${范涛之}
 * @Description
 * @create 2021-12-20 17:35
 */
public class Test {

    public String achieveCode() {  //由于数字 1 、 0 和字母 O 、l 有时分不清楚,所以,没有数字 1 、 0
        String[] beforeShuffle= new String[] { "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F",
                "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a",
                "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
                "w", "x", "y", "z" };
        List list = Arrays.asList(beforeShuffle);//将数组转换为集合
        Collections.shuffle(list);  //打乱集合顺序
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < list.size(); i++) {
            sb.append(list.get(i)); //将集合转化为字符串
        }
        return sb.toString().substring(3, 8);  //截取字符串第4到8
    }

    //发送邮件代码
    public static void sendAuthCodeEmail(String email, String authCode) {
        try {
            SimpleEmail mail = new SimpleEmail();
            mail.setHostName("smtp.qq.com");//发送邮件的服务器
            mail.setAuthentication("你的邮箱","你的授权码");//刚刚记录的授权码,是开启SMTP的密码
            mail.setFrom("你的邮箱","发件人的昵称");  //发送邮件的邮箱和发件人
            mail.setSSLOnConnect(true); //使用安全链接
            mail.addTo("收信人邮箱");//接收的邮箱
            //System.out.println("email"+email);
            mail.setSubject("注册验证码");//设置邮件的主题
            mail.setMsg("尊敬的用户:你好!\n 注册验证码为:" + authCode+"\n"+"     (有效期为一分钟)");//设置邮件的内容
            mail.send();//发送
        } catch (EmailException e) {
            e.printStackTrace();
        }
    }


}

这里说一下自己在 mail.setSSLOnConnect(false); //使用安全链接这个地方只要设置成false就会成功,true就会报错

主方法中调用执行:

    public static void main(String[] args) {
        sendAuthCodeEmail("2831826106@qq.com",achieveCode() );
    }

结果:成功:

《CSDN》javaweb项目视频学习笔记02
《CSDN》javaweb项目视频学习笔记02

全部代码展示:

package 验证码学习;

import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

/**
 * @author ${范涛之}
 * @Description
 * @create 2021-12-20 17:35
 */
public class Test {

    public static String achieveCode() {  //由于数字 1 、 0 和字母 O 、l 有时分不清楚,所以,没有数字 1 、 0
        String[] beforeShuffle= new String[] { "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F",
                "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a",
                "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v",
                "w", "x", "y", "z" };
        List list = Arrays.asList(beforeShuffle);//将数组转换为集合
        Collections.shuffle(list);  //打乱集合顺序
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < list.size(); i++) {
            sb.append(list.get(i)); //将集合转化为字符串
        }
        return sb.toString().substring(3, 8);  //截取字符串第4到8
    }

    //发送邮件代码
    public static void sendAuthCodeEmail(String email, String authCode) {
        try {
            SimpleEmail mail = new SimpleEmail();
            mail.setHostName("smtp.qq.com");//发送邮件的服务器
            mail.setAuthentication("*******@qq.com","这里写自己的哦");//刚刚记录的授权码,是开启SMTP的密码
            mail.setFrom("*******@qq.com","ftz");  //发送邮件的邮箱和发件人
            mail.setSSLOnConnect(false); //使用安全链接
            mail.addTo("*******@qq.com");//接收的邮箱
            System.out.println("email是: "+email);
            mail.setSubject("注册验证码");//设置邮件的主题
            mail.setMsg("尊敬的用户:你好!\n 注册验证码为:" + authCode+"\n"+"     (有效期为一分钟)");//设置邮件的内容
            mail.send();//发送
        } catch (EmailException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        sendAuthCodeEmail("******@qq.com",achieveCode() );
    }


}

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