1. 导入redis依赖包
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>${spring.data.redis.version}</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${redis.clients.version}</version>
</dependency>
版本
<spring.data.redis.version>1.5.0.RELEASE</spring.data.redis.version>
<redis.clients.version>2.5.0</redis.clients.version>
2. 添加redis.properties 文件
redis.host=127.0.0.1
redis.port=6379
redis.pass=
redis.database=5
redis.timeout=2000
redis.maxIdle=300
redis.minIdle=100
redis.maxTotal=1000
redis.testOnBorrow=true
引入配置文件
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<array>
...
<value>classpath:redis.properties</value>
</array>
</property>
</bean>
3. 配置spring-redis.xml配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- redis -->
<bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
<property name="maxIdle" value="${redis.maxIdle}" />
<property name="maxTotal" value="${redis.maxTotal}" />
<property name="minIdle" value="${redis.minIdle}" />
<property name="testOnBorrow" value="${redis.testOnBorrow}" />
</bean>
<bean id="redisFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
p:hostName="${redis.host}"
p:port="${redis.port}"
p:password="${redis.pass}"
p:timeout="${redis.timeout}"
p:poolConfig-ref="poolConfig"
p:database="${redis.database}"/>
<bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
<property name="connectionFactory" ref="redisFactory" />
</bean>
<bean id="redisUtil" class="com.demo.util.RedisUtil" >
<property name="redisTemplate" ref="redisTemplate" />
</bean >
</beans>
在web.xml中引入spring-redis.xml配置文件
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml,classpath:spring-redis.xml</param-value>
</context-param>
4. 创建redis 工具类
package com.demo.util;
import java.io.Serializable;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.apache.log4j.Logger;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
public class RedisUtil {
private static Logger logger = Logger.getLogger(RedisUtil.class);
private static RedisTemplate<Serializable, Object> redisTemplate;
/**
* 写入或更新缓存
* @param key
* @param value
* @return
*/
public static boolean set(final String key, Object value)
{
boolean result = false;
try {
ValueOperations<Serializable, Object> operations = redisTemplate
.opsForValue();
operations.set(key, value);
result = true;
} catch (Exception e) {
logger.error("write redis is faill");
e.printStackTrace();
}
return result;
}
/**
* 写入缓存
* 设置失效时间
* @param key
* @param value
* @return
*/
public static boolean set(final String key, Object value, Long expireTime) {
boolean result = false;
try {
ValueOperations<Serializable, Object> operations = redisTemplate
.opsForValue();
operations.set(key, value);
redisTemplate.expire(key, expireTime, TimeUnit.SECONDS);
result = true;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 读取缓存
* @param key
* @return
*/
public static Object get(final String key)
{
Object result = null;
ValueOperations<Serializable, Object> operations = redisTemplate
.opsForValue();
result = operations.get(key);
return result;
}
/**
* 删除对应的value
* @param key
*/
public static void remove(final String key)
{
if (exists(key)) {
redisTemplate.delete(key);
}
}
/**
* 批量删除对应的value
*
* @param keys
*/
public static void remove(final String... keys) {
for (String key : keys) {
remove(key);
}
}
/**
* 批量删除key
*
* @param pattern 正则表达式
*/
public static void removePattern(final String pattern) {
Set<Serializable> keys = redisTemplate.keys(pattern);
if (keys.size() > 0)
redisTemplate.delete(keys);
}
/**
* 判断缓存中是否有对应的value
*
* @param key
* @return
*/
public static boolean exists(final String key) {
return redisTemplate.hasKey(key);
}
public void setRedisTemplate(
RedisTemplate<Serializable, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
}
}
5. 调用redis工具类的方法直接调用即可（记得先启动redis服务）