spring boot中使用resid-RedisTemplate

1、项目中导入依赖jar包 这里用的maven

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
<version>1.4.7.RELEASE</version>
</dependency>

2、项目配置文件设置redis信息 这里用的 yml配置文件 

redis:
 host: 
port: 
password: 
pool:
  max-active: 8
min-idle: 0
max-idle: 8
max-wait: 10000
timeout: 0
database: 9

注意 要在spring：节点下

3、在项目中新建类 让spring boot启动时加载  RedisTemplate

package com.prairie.manage.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

import java.lang.reflect.Method;

/**
* Created by xxx on 2017/6/25.
* 加载redis配置信息
*/
@Configuration
@EnableCaching
public class RedisConfiguration {
@Bean
public KeyGenerator keyGenerator() {
return new KeyGenerator() {
@Override
public Object generate(Object target, Method method, Object... params) {
StringBuilder sb = new StringBuilder();
sb.append(target.getClass().getName());
sb.append(method.getName());
for (Object obj : params) {
sb.append(obj.toString
ed64
());
}
return sb.toString();
}
};
}

@SuppressWarnings("rawtypes")
@Bean
public CacheManager cacheManager(RedisTemplate redisTemplate) {
RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
//设置缓存过期时间
//rcm.setDefaultExpiration(60);//秒
return rcm;
}

@Bean
public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
StringRedisTemplate template = new StringRedisTemplate(factory);
Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
template.setValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}

4、新建redisService 实现具体操作redis

@Component
public class RedisService {

@Autowired
private RedisTemplate<String, String> redisTemplate;

/**
* key value 形式
* @param key
* @param value
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public void set(final String key, final String value) {
redisTemplate.execute(new RedisCallback() {
public Long doInRedis(RedisConnection connection) throws DataAccessException {
connection.set(key.getBytes(), value.getBytes());
return 1L;
}
});
}

/**
* set 一个有时间的key 到时间后自动过期
* @param key
* @param value
* @param liveTime  存活时间/秒
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public void set(final String key, final String value, final long liveTime) {
redisTemplate.execute(new RedisCallback() {
public Long doInRedis(RedisConnection connection) throws DataAccessException {
connection.setEx(key.getBytes(), liveTime, value.getBytes());
return 1L;
}
});
}

/**
* 根据key 获取value
* @param key
* @return
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public String get(final String key) {
return (String) redisTemplate.execute(new RedisCallback() {
public Object doInRedis(RedisConnection connection) throws DataAccessException {
try {
return new String(connection.get(key.getBytes()));
} catch (Exception e) {
}
return null;
}
});
}

/**
* 自增  key不存在则为1 key存在则自增
* @param key
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public void incrby(final String key) {
redisTemplate.execute(new RedisCallback() {
public Long doInRedis(RedisConnection connection) throws DataAccessException {
Long incr = connection.incr(key.getBytes());
return incr;
}
});
}

/**
*  自增不存在数值会默认初始化0然后加1，传入时间后自动销毁
* @param key
* @param liveTime
*/
public void incrby(final String key,final long liveTime) {
redisTemplate.execute(new RedisCallback<Object>() {
public Long doInRedis(RedisConnection connection) throws DataAccessException {
Long incr = connection.incr(key.getBytes());
connection.expire(key.getBytes(), liveTime);
return incr;
}
});
}

/**
* 自减
* @param key
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public void decrby(final String key) {
redisTemplate.execute(new RedisCallback() {
public Long doInRedis(RedisConnection connection) throws DataAccessException {
Long incr = connection.decr(key.getBytes());
return incr;
}
});
}

/**
* 删除key的value
* @param key
*/
public void del(final String key){
redisTemplate.execute(new RedisCallback<Object>(){
public Long doInRedis(RedisConnection connection) throws DataAccessException {
return connection.del(key.getBytes());
}
});
}

/**
* 根据key查看是否存在 刷新
* @param key
* @return
*/
public boolean hasKey(String key){
return redisTemplate.hasKey(key);
}

/**
* 根据key刷新过期时间
* @param key
* @param timeOut
* @return
*/
public boolean refreshLiveTime(String key,long timeOut){
return redisTemplate.expire(key,timeOut, TimeUnit.SECONDS);
}

}