在ssm项目中使用redis缓存查询数据的方法

<bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig"> 
 <property name="maxTotal" value="${redis.maxTotal}"></property> 
 <property name="maxIdle" value="${redis.maxIdle}"></property> 
 <property name="testOnBorrow" value="${redis.testOnBorrow}"></property> 
 <property name="maxWaitMillis" value="${redis.maxWaitMillis}"></property> 
</bean> 
<!-- jedis客户端单机版 --> 
<bean id="jedisPool" class="redis.clients.jedis.JedisPool"> 
 <constructor-arg name="poolConfig" ref="poolConfig"></constructor-arg> 
 <constructor-arg name="host" value="${redis.hostName}"></constructor-arg> 
 <constructor-arg name="port" value="${redis.port}"></constructor-arg> 
</bean> 
<!-- jedis集群版配置 --> 
<bean id="jedisCluster" class="redis.clients.jedis.JedisCluster"> 
 <constructor-arg name="poolConfig" ref="poolConfig"></constructor-arg> 
 <constructor-arg name="nodes"> 
 <set> 
  <bean class="redis.clients.jedis.HostAndPort"> 
  <constructor-arg name="host" value="127.0.0.1"></constructor-arg> 
  <constructor-arg name="port" value="7001"></constructor-arg> 
  </bean> 
  <bean class="redis.clients.jedis.HostAndPort"> 
  <constructor-arg name="host" value="127.0.0.1"></constructor-arg> 
  <constructor-arg name="port" value="7002"></constructor-arg> 
  </bean> 
  <bean class="redis.clients.jedis.HostAndPort"> 
  <constructor-arg name="host" value="127.0.0.1"></constructor-arg> 
  <constructor-arg name="port" value="7003"></constructor-arg> 
  </bean> 
  <bean class="redis.clients.jedis.HostAndPort"> 
  <constructor-arg name="host" value="127.0.0.1"></constructor-arg> 
  <constructor-arg name="port" value="7004"></constructor-arg> 
  </bean> 
  <bean class="redis.clients.jedis.HostAndPort"> 
  <constructor-arg name="host" value="127.0.0.1"></constructor-arg> 
  <constructor-arg name="port" value="7005"></constructor-arg> 
  </bean> 
 </set> 
 </constructor-arg> 
</bean> 
[java] view plain copy
java调用 
//service层查询时代码 
@Autowired 
private JedisClient jedisClient; 
@Override 
public List<User> list() { 
 // TODO Auto-generated method stub 
 try { 
 String json = jedisClient.hget("user", "list"); 
 if (StringUtils.isNotBlank(json)) { 
  List<User> users = JsonUtils.jsonToList(json, User.class); 
  return users; 
 } 
 } catch (Exception e) { 
 e.printStackTrace(); 
 } 
 //使用持久层查询数据库 
 List<User> list = userMapper.list(); 
 try { 
 jedisClient.hset("user", "list", JsonUtils.objectToJson(list)); 
 } catch (Exception e) { 
 e.printStackTrace(); 
 } 
 return list; 
}