Redis学习记录------Jedis操作Redis6（六）

以你之姓@ 2024-04-08 12:57 39阅读 0赞

## Redis学习记录------Jedis操作Redis6（六） ##

创建maven工程，引入依赖

<dependencies>
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>3.2.0</version>
            </dependency>
        </dependencies>

测试链接Jedis，在配置文件的讲解时，  
1.需要将bind注释掉  
2.需要将protected-mode本机访问保护模式设置为no  
否则只能让本机连，其他机器连不了，之后重启Redis，同时需要将防火墙打开。

public class JedisDemo1 {
        
        public static void main(String[] args) {
        
            //创建Jedis对象，IP，端口
            Jedis jedis = new Jedis("192.168.44.168",6379);
            //测试
            String value = jedis.ping();
            System.out.println(value);
        }
    }

获取所有key

@Test
        public void demo(){
        
            //创建Jedis对象
            Jedis jedis = new Jedis("192.168.44.168",6379);
            //获取所有key
            Set<String> keys = jedis.keys("*");
            for(String key :keys){
        
                System.out.println(key);
            }
        }

### String ###

@Test
        public void demo(){
        
            //创建Jedis对象
            Jedis jedis = new Jedis("192.168.44.168",6379);
            //String
            jedis.set("name","zhaoyun");
            String name = jedis.get("name");
            System.out.println(name);
            //设置多个key
            jedis.mset("k1","k1_value","k2","k2_value");
            List<String> mget = jedis.mget("k1", "k2");
            System.out.println(mget);
            //获取所有key
            Set<String> keys = jedis.keys("*");
            for(String key :keys){
        
                System.out.println(key);
            }
        }

### List ###

@Test
        public void demList(){
        
            //创建Jedis对象
            Jedis jedis = new Jedis("192.168.44.168",6379);
            jedis.rpush("k1","v1","v2","v3");
            String v3 = jedis.rpop("k1");
            System.out.println(v3);
            //取全部值
            List<String> k1 = jedis.lrange("k1", 0, -1);
            System.out.println(k1);
        }

### Set ###

@Test
        public void demSet(){
        
            //创建Jedis对象
            Jedis jedis = new Jedis("192.168.44.168",6379);
            jedis.sadd("k1","v1","v2","v3");
            //取出全部值
            Set<String> k11 = jedis.smembers("k1");
            System.out.println(k11);
        }

### hash ###

@Test
        public void demhash(){
        
            //创建Jedis对象
            Jedis jedis = new Jedis("192.168.44.168",6379);
            HashMap<String,String> map = new HashMap<>();
            map.put("name","zhangssan");
            map.put("age","18");
            map.put("sex","boy");
            jedis.hset("k1",map);
            jedis.hset("k1","cm","188");
            //取出全部值
            Set<String> k1 = jedis.hkeys("k1");
            System.out.println(k1);
        }

### ZSet ###

@Test
        public void demZset(){
        
            //创建Jedis对象
            Jedis jedis = new Jedis("192.168.44.168",6379);
            
            jedis.zadd("k1",100d,"shanghai");
            //取出全部值
            jedis.zrange("k1",0,-1);
        }

### 案例 ###

输入手机号，点击发送后，随机生成6位数字验证码，2分钟有效  
输入验证码，点击验证，返回成功或失败  
每个手机号每天只能输入3次

/**
     * 手机验证码案例
     * 验证码两分钟过期
     * 一个手机一天只能接收3次
     */
    public class JedisPhoneCodeDemo {
        
        public static void main(String[] args) {
        
            //模拟手机验证码发哦那个
            verifyCode("1111");
            //模拟验证码校验
            getRedisCode("1111","96578");
        }
    
        //生成6位数字验证码
        public static StringBuffer getCode(){
        
            Random random = new Random();
            StringBuffer code = new StringBuffer();
            for (int i = 0; i < 6; i++) {
        
                int i1 = random.nextInt(10);
                code.append(i1);
            }
            return code;
        }
    
        //让每个手机只能发三次，验证码放到redis中，设置过期时间
        public static void verifyCode(String phone){
        
            Jedis jedis = new Jedis("192.168.44.168",6379);
            //拼接key
            //手机发送次数key
            String phoneKey = phone+":Count";
            String s = jedis.get(phoneKey);
            if (s == null){
        
                jedis.setex(phoneKey, 24*60*60,"1");
            }else if (Integer.parseInt(s) <= 2){
        
                jedis.incr(phoneKey);
            }else {
        
                System.out.println("发送次数达到上限");
                jedis.close();
                return;
            }
    
            //验证码key
            StringBuffer code1 = getCode();
            String codeKey = phone+":Code";
            jedis.setex(codeKey, 60*2,String.valueOf(code1));
            jedis.close();
        }
        //验证码校验
        public static void getRedisCode(String phone,StringBuffer code){
        
            Jedis jedis = new Jedis("192.168.44.168",6379);
            String codeKey = phone+":Code";
            String Code = jedis.get(codeKey);
            if (Code.equals(code)){
        
                System.out.println("成功");
            }else {
        
                System.out.println("失败");
            }
            jedis.close();
        }
    }