Spring boot集成redis服务。
1.pom文件里添加redis依赖。
<!-- Spring Boot Redis 依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<version>1.5.7.RELEASE</version>
</dependency>
2.application.properties配置。
#---redis---
spring.redis.database=0
## Redis服务器地址
spring.redis.host=127.0.0.1
## Redis服务器连接端口
spring.redis.port=6379
## Redis服务器连接密码(默认为空)
spring.redis.password=
## 连接池最大连接数(使用负值表示没有限制)
spring.redis.jedis.pool.max-active=8
## 连接池最大阻塞等待时间(使用负值表示没有限制)
spring.redis.jedis.pool.max-wait=-1ms
## 连接池中的最大空闲连接
spring.redis.jedis.pool.max-idle=8
## 连接池中的最小空闲连接
spring.redis.jedis.pool.min-idle=0
## 连接超时时间(毫秒)
spring.redis.jedis.timeout=0
3.server层集成redis操作方法。
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;
public interface RedisServer {
<T> void put(String key, T obj);
<T> void put(String key, T obj, int timeout);
<T> void put(String key, T obj, int timeout, TimeUnit unit);
<T> T get(String key, Class<T> cls);
<E,T extends Collection<E>> T get(String key, Class<E> cls, Class<T> collectionCls);
<T> T putIfAbsent(String key, Class<T> cls, Supplier<T> supplier);
<T> T putIfAbsent(String key, Class<T> cls, Supplier<T> supplier, int timeout);
<E,T extends Collection<E>> T putIfAbsent(String key, Class<E> cls, Class<T> collectionCls, Supplier<T> supplier);
boolean exists(String key);
void del(String key);
boolean expire(String key, long timeout, TimeUnit unit);
boolean expire(String key, long timeout);
void put(String key, String value);
void put(String key, String value, int timeout);
void put(String key, String value, int timeout, TimeUnit unit);
String get(String key);
void putHash(String key, Map<Object, Object> m);
Map<Object, Object> getHash(String key);
}
4.server实现层。
import com.yh.business.framework.base.util.JsonUtils;
import com.yh.business.framework.common.redis.RedisServer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;
@Service("redisServer")
public class RedisServerImpl implements RedisServer {
@Autowired
private StringRedisTemplate redisTemplate;
public <T> void put(String key, T obj) {
redisTemplate.opsForValue().set(key, JsonUtils.toJson(obj));
}
public <T> void put(String key, T obj, int timeout) {
put(key,obj,timeout,TimeUnit.MINUTES);
}
public <T> void put(String key, T obj, int timeout, TimeUnit unit) {
redisTemplate.opsForValue().set(key, JsonUtils.toJson(obj),timeout,unit);
}
public <T> T get(String key, Class<T> cls) {
return JsonUtils.fromJson(JsonUtils.toJson(redisTemplate.opsForValue().get(key)), cls);
}
public <E, T extends Collection<E>> T get(String key, Class<E> cls, Class<T> collectionCls) {
return JsonUtils.fromJson(JsonUtils.toJson(redisTemplate.opsForValue().get(key)), cls, collectionCls);
}
public <T> T putIfAbsent(String key, Class<T> cls, Supplier<T> supplier) {
T t=get(key,cls);
if(null==t){
t=supplier.get();
if(null!=t)
put(key,t);
}
return t;
}
public <T> T putIfAbsent(String key, Class<T> cls, Supplier<T> supplier, int timeout) {
T t=get(key,cls);
if(null==t){
t=supplier.get();
if(null!=t)
put(key,t,timeout);
}
return t;
}
public <E, T extends Collection<E>> T putIfAbsent(String key, Class<E> cls, Class<T> collectionCls,
Supplier<T> supplier) {
T t=get(key,cls,collectionCls);
if(null==t || t.isEmpty()){
t=supplier.get();
if(null!=t && t.size()>0)
put(key,t);
}
return t;
}
public boolean exists(String key) {
return redisTemplate.hasKey(key);
}
public void del(String key) {
redisTemplate.delete(key);
}
public boolean expire(String key, long timeout, TimeUnit unit) {
return redisTemplate.expire(key, timeout, unit);
}
public boolean expire(String key, long timeout) {
return redisTemplate.expire(key, timeout, TimeUnit.MINUTES);
}
public void put(String key, String value) {
redisTemplate.opsForValue().set(key, value);
}
public void put(String key, String value, int timeout) {
put(key,value,timeout,TimeUnit.MINUTES);
}
public void put(String key, String value, int timeout, TimeUnit unit) {
redisTemplate.opsForValue().set(key, value, timeout, unit);
}
public String get(String key) {
return (String) redisTemplate.opsForValue().get(key);
}
public void putHash(String key, Map<Object,Object> m) {
redisTemplate.opsForHash().putAll(key, m);
}
public Map<Object, Object> getHash(String key) {
try{
return redisTemplate.opsForHash().entries(key);
}catch(Exception e){
return null;
}
}
}
(注意:此处需用到JsonUtil工具)。