redis模拟手机发送验证码进行验证

1.配置redis依赖

       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

2.配置yaml文件

 redis:
    port: 6379
    host: localhost
        
     

3.创建redisConfig配置类

@Configuration
public class RedisConfig {
    @Bean
    //绑定yaml配置
    @ConfigurationProperties(prefix = "redis")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        //创建RedisTemplate模板
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        //关联redisConnectionFactory
        template.setConnectionFactory(redisConnectionFactory);
        //创建序列化类
        GenericToStringSerializer genericToStringSerializer = new GenericToStringSerializer(Object.class);
        //序列化类，对象映射设置
        //设置value的转化格式和key的转化格式
        template.setValueSerializer(genericToStringSerializer);
        template.setKeySerializer(new StringRedisSerializer());
        template.afterPropertiesSet();
        return template;
    }
}

4.前端部分，一个简单的测试表单

<form id="code_form" class="navbar-expand-sm">
    <input type="text" placeholder="请输入手机号" th:name="phone_no">
    <button type="button" id="sendCode">发送验证码</button><br>
    <font id="countdown" color="red"></font>

    <br><input type="text" placeholder="请填写验证码" th:name="verify_code">
    <button type="button"  id="verifyCode">确定</button><br>
    <font id="result" color="green"></font>
    <font id="error" color="red"></font>
</form>

<script type="text/javascript">
    //verifyCode
    var t = 120;//设置倒计时时间
    var interval;
    function refer(){
        $("#countdown").text("请于"+t+"秒内填写验证码");//显示倒计时
        t--;//计时器递减
        if(t<=0){
            clearInterval(interval);
            $("#countdown").text("验证码已失效请重新发送！");
        }
    }

    $(function (){
        $("#sendCode").click(function (){
            $.post("/sendCode",$("#code_form").serialize(),function (data){
                if (data == "true"){
                    t = 120;
                    clearInterval(interval);
                    interval = setInterval("refer()",1000);//启动一秒定时
                }else if (data == "limit"){
                    clearInterval(interval);
                    $("#countdown").text("单日发送超过次数");
                    $("#sendCode").attr('disabled',true);
                }
            })
        })
    })

    $("#verifyCode").click(function (){
        $.post("/verifyCode",$("#code_form").serialize(),function (data){
            if (data == "true"){
                $("#result").attr("color","green");
                $("#result").text("验证成功！");
                clearInterval(interval);
                $("countdown").text("");
            }else {
                $("#result").attr("color","red");
                $("#result").text("验证失败！");
            }
        })
    })

5.控制层

 //注入redis配置类
    @Autowired
    private RedisTemplate redisTemplate;

    @RequestMapping("/sendCode")
    @ResponseBody
    public String sendCode(String phone_no){
        //获取随机验证码
        String code = getCode(6);
        //拼接 验证码的 key
        String codeKey = "verifyCode:" + phone_no + ":code";
        //拼接 发送次数的 key
        String countKey = "verifyCode" + phone_no + ":count";
        String count = (String) redisTemplate.boundValueOps(countKey).get();
        //获取key的自增后的值
        RedisAtomicLong redisAtomicLong = new RedisAtomicLong(countKey, redisTemplate.getConnectionFactory());
        long countLong = redisAtomicLong.incrementAndGet();
        System.out.println(countLong);
        //判断时候是第一次
        if (countLong == 0) {
            redisTemplate.boundValueOps(countKey).set(1);
        }else if (countLong >3){
            return "limit";
        }
        //向redis中存储，以手机号为键
       redisTemplate.boundSetOps(codeKey).add(code);
        System.out.println(redisTemplate.boundSetOps(codeKey).members());
        //设置过期时间
       redisTemplate.expire(codeKey,2, TimeUnit.MINUTES);
        return "true";
    }
    
    @RequestMapping("/verifyCode")
    @ResponseBody
    public String verifyCode(String phone_no,String verify_code){
        String codeKey = "verifyCode:" + phone_no + ":code";
        String countKey = "verifyCode:" + phone_no + ":count";
        Set<String> members = redisTemplate.boundSetOps(codeKey).members();
        //判断存储的验证码是否包含输入的验证码
        if (members.contains(verify_code)){
            return "true";
        }
        return "false";
    }
    
    //设置一个随机生成验证码的工具类
    public String getCode(int length){
        String code = "" ;
        Random random = new Random();
        for (int i = 0; i < length; i++) {
            int rand = random.nextInt(10);
            code += rand;
        }
        return code;
    }

6.思路

同时后台显示的是发送次数和验证码

在120秒内输入正确的验证码