Jedis操作Redis实现模拟验证码发送功能
jedis的创建
1.先启动redis 如果报
那么说明你redis服务器服务器端还没打开
//启动服务端
redis-server /etc/redis.conf
//启动客户端
redis-cli
如果启动成功,就是这样
2.创建一个maven工程
导入Jedis依赖
<dependencies>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>3.2.0</version>
</dependency>
</dependencies>
3.创建一个class
public class JedisDemo1 { public static void main(String[] args) { Jedis jedis = new Jedis("xx..xx.xx",6379); //如果redis配置了密码就在这里输入不然会连接失败 jedis.auth("x"); String value = jedis.ping(); System.out.println(value); } }
如果是第一次连接会很大概率报错
这时候有两种方法第一种是关闭防火墙,但是这种不太好,其实只要开放6379端口连接就可以了
jedis实现模拟验证码
public class PhoneCode { public static void main(String[] args) { verifyCode("12345678900"); //校验验证码是否正确 // GetRedisCode("12345678900","940487"); } //1.生成六位验证码 public static String getCode(){ Random random = new Random(); String Code = ""; for (int i = 0; i < 6; i++) { int i1 = random.nextInt(10); Code = Code +i1; } return Code; } //2.每个手机每天只能发三次,验证码放到redis中,设置过期时间 public static void verifyCode(String phone){ //连接redis Jedis jedis = new Jedis("172.18.17.215",6379); jedis.auth("1052600676"); //先自定义两个key,从而通过后面步骤给key赋一个value //手机发送次数 String CountKey = phone+"count"; //验证码key String CodeKey = phone + "code"; //每个手机每天只能发送三次 //通过key查看是否有value String count = jedis.get(CountKey); if (count == null){ //没有发送次数,说明是第一次发送,那就设置发送次数为1 jedis.setex(CountKey,24*60*60,"1"); }else if (Integer.parseInt(count) <= 2){ jedis.incr(CountKey); }else if (Integer.parseInt(count) > 2){ System.out.println("验证码超过三次,无法发送"); jedis.close(); return; } //设置过期时间 //value String codee = getCode(); jedis.setex(CodeKey,120,codee); jedis.close(); } //3.验证码校验 public static void GetRedisCode(String phone,String code){ //连接redis Jedis jedis = new Jedis("172.18.17.215",6379); jedis.auth("1052600676"); //验证码key String CodeKey = phone + "code"; String RedisCode = jedis.get(CodeKey); if (RedisCode.equals(code)){ System.out.println("成功"); }else{ System.out.println("失败"); } jedis.close(); } }
通过这些操作实现验证码发送
超过三次
相关数据类型测试
Key
jedis.set(“k1”, “v1”);
jedis.set(“k2”, “v2”);
jedis.set(“k3”, “v3”);
Set<String> keys = jedis.keys(“*”);
System.out.println(keys.size());
for (String key : keys) {
System.out.println(key);
}
System.out.println(jedis.exists(“k1”));
System.out.println(jedis.ttl(“k1”));
System.out.println(jedis.get(“k1”));
String
jedis.mset(“str1″,”v1″,”str2″,”v2″,”str3″,”v3”);
System.out.println(jedis.mget(“str1″,”str2″,”str3”));
List
List<String> list = jedis.lrange(“mylist”,0,-1);
for (String element : list) {
System.out.println(element);
}
set
jedis.sadd(“orders”, “order01”);
jedis.sadd(“orders”, “order02”);
jedis.sadd(“orders”, “order03”);
jedis.sadd(“orders”, “order04”);
Set<String> smembers = jedis.smembers(“orders”);
for (String order : smembers) {
System.out.println(order);
}
jedis.srem(“orders”, “order02”);
hash
jedis.hset(“hash1″,”userName”,”lisi”);
System.out.println(jedis.hget(“hash1″,”userName”));
Map<String,String> map = new HashMap<String,String>();
map.put(“telphone”,”13810169999″);
map.put(“address”,”atguigu”);
map.put(“email”,”abc@163.com”);
jedis.hmset(“hash2”,map);
List<String> result = jedis.hmget(“hash2″,”telphone”,”email”);
for (String element : result) {
System.out.println(element);
}
zset
jedis.zadd(“zset01”, 100d, “z3”);
jedis.zadd(“zset01”, 90d, “l4”);
jedis.zadd(“zset01”, 80d, “w5”);
jedis.zadd(“zset01”, 70d, “z6”);
Set<String> zrange = jedis.zrange(“zset01”, 0, -1);
for (String e : zrange) {
System.out.println(e);
}
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