spring整合redis

1.引入jedis-2.7.3.jar

2.在spring配置文件中添加配置(前提要安装redis)

<bean id="redisUserDao" class="com.cn.kong.redis.RedisUserDaoImpl"/>

 <!-- redis配置开始 -->  <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">          <property name="maxIdle" value="300" />          <property name="maxActive" value="600" />          <property name="maxWait" value="1000" />          <property name="testOnBorrow" value="true" />      </bean>         <bean id="jedis.shardInfo" class="redis.clients.jedis.JedisShardInfo" >     <constructor-arg index="0" value="127.0.0.1" />        <constructor-arg index="1" value="6379" />       </bean>    <bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool">          <constructor-arg index="0" ref="jedisPoolConfig" />        <constructor-arg index="1">                <list>                   <ref bean="jedis.shardInfo" />                </list>          </constructor-arg>      </bean>  <!-- redis配置结束 -->

3.新建接口

RedisUserDao

package com.cn.kong.redis;public interface RedisUserDao {        //存储简单字符串    void set(String key, String value);        //获取简单字符串    String getStr(String key);            void setBytes(byte[] keyBytes, byte[] valueByte);        byte[] getBytes(byte[] keyBytes);    }

4.新建实现类

package com.cn.kong.redis;import org.springframework.beans.factory.annotation.Autowired;import redis.clients.jedis.ShardedJedis;import redis.clients.jedis.ShardedJedisPool;public class RedisUserDaoImpl  implements RedisUserDao {@Autowired  private ShardedJedisPool shardedJedisPool;public String getStr(String key) {ShardedJedis jedis =  shardedJedisPool.getResource(); return  jedis.get(key);}public void set(String key, String value) {ShardedJedis jedis =  shardedJedisPool.getResource();   jedis.set(key, value);}public void setBytes(byte[] keyBytes, byte[] valueByte) {ShardedJedis jedis =  shardedJedisPool.getResource();  jedis.set(keyBytes, valueByte);}public byte[] getBytes(byte[] keyBytes) {ShardedJedis jedis =  shardedJedisPool.getResource(); return jedis.get(keyBytes);}}

5.测试

@Autowired  private RedisUserDao redisUserDao;

//redis测试List<ExShop> exShopList = exShopMapper.selectByExample(example);redisUserDao.setBytes("exShopList".getBytes(), ObjectsTranscoder.serializ(exShopList));//验证          byte[] in = redisUserDao.getBytes("exShopList".getBytes());          List<ExShop> list = ObjectsTranscoder.deserialize(in);          for(ExShop shop : list){              System.out.println("testSetEnsemble user name is:" + shop.getShopName());          }  mv.addObject("exShopList", exShopList);

由于redis没有提供存入list，要将查询出来的list序列化，序列化的类如下

package com.cn.kong.redis;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.Closeable;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.util.ArrayList;import java.util.List;import com.cn.kong.bean.User;public class ObjectsTranscoder { public static <T> byte[] serializ(List<T> value) {           if (value == null) {               throw new NullPointerException("Can't serialize null");           }           byte[] rv=null;           ByteArrayOutputStream bos = null;           ObjectOutputStream os = null;           try {               bos = new ByteArrayOutputStream();               os = new ObjectOutputStream(bos);               for(T t : value){                   os.writeObject(t);               }               os.writeObject(null);               os.close();               bos.close();               rv = bos.toByteArray();           } catch (IOException e) {               throw new IllegalArgumentException("Non-serializable object", e);           } finally {               close(os);               close(bos);           }           return rv;   }    public static <T> List<T> deserialize(byte[] in) {           List<T> list = new ArrayList<T>();           ByteArrayInputStream bis = null;           ObjectInputStream is = null;           try {               if(in != null) {                   bis=new ByteArrayInputStream(in);                   is=new ObjectInputStream(bis);                   while (true) {                       T t =  (T) is.readObject();                       if(t == null){                           break;                       }else{                           list.add(t);                       }                   }                   is.close();                   bis.close();               }           } catch (IOException e) {           } catch (ClassNotFoundException e) {           } finally {               /*CloseUtil.close(is);               CloseUtil.close(bis);  */         }           return list;       }    public static void close(Closeable closeable) {          if (closeable != null) {              try {                  closeable.close();              } catch (Exception e) {              }          }      }  }