springboot中使用redisTemplate操作redis

springboot中使用redisTemplate操作redis

(1)引入jar包
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<version>1.5.8.RELEASE</version>
</dependency>

<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.29</version>
</dependency>
(2)Redis工具类-注入redisTemplate操作redis
@Component
public class RedisUtil implements InitializingBean{

private RedisUtil() {
}

private static RedisUtil instance = null;
@Autowired
private RedisTemplate redisTemplate;

public synchronized static RedisUtil getInstance() {
if(instance==null) {
instance = new RedisUtil();
}
return instance;
}

@Bean
private ApplicationContext getApp() {
return ApplicationContextUtil.getApplicationContext();
}

@PostConstruct
public void init() {
System.out.println("@PostConstruct..");
if(instance == null) {
instance = getInstance();
}
instance.redisTemplate = redisTemplate;
initRedisTemplate();
}

//设置redistemplate的序列化器
private void initRedisTemplate(){
System.out.println("默认key序列化器："+ApplicationContextUtil.getApplicationContext()+instance.redisTemplate.getKeySerializer());
System.out.println("默认value序列化器："+instance.redisTemplate.getValueSerializer());
RedisSerializer rs = instance.redisTemplate.getStringSerializer();
instance.redisTemplate.setKeySerializer(rs);
instance.redisTemplate.setValueSerializer(rs);
}

public void afterPropertiesSet() throws Exception {
System.out.println("InitializingBean..");
}

public String get(String key) {
byte[] bval = instance.redisTemplate.getConnectionFactory().getConnection().get(key.getBytes());
return new String(bval);
}
}

(3)redis配置：
spring.redis.host=192.168.191.128
spring.redis.port=6379

(4)调用
String val = RedisUtil.getInstance().get("product.num");

1.redis.clients.jedis.exceptions.JedisDataException:
DENIED Redis is running in protected mode because protected mode is enabled,
no bind address was specified, no authentication password is requested to clients.

protected-mode no
  
设置密码访问模式
在redis.conf中加入一行密码设置
require 你的密码
保存，再重新启动redis客户端