Redis跟Spring整合，sentinel模式

普通模式整合

一、在pom.xml中引入redis的依赖

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-redis</artifactId>
    <version>1.8.0.RELEASE</version>
</dependency>
<dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>2.9.0</version>
</dependency>

 二、新建redis.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-4.0.xsd">


    <!-- Redis连接池配置 -->
    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <property name="maxWaitMillis" value="${redis.maxWait}"/>
        <property name="maxIdle" value="${redis.maxIdle}" />
        <property name="minIdle" value="${redis.minIdle}" />
        <property name="maxTotal" value="${redis.maxTotal}" />
        <property name="testOnBorrow" value="true" />
    </bean>

    <bean id="jedisShardInfo" class="redis.clients.jedis.JedisShardInfo">
        <constructor-arg index="0" value="${redis.host}" />
        <constructor-arg index="1" value="${redis.port}" type="int" />
        <!--如果redis没有设置密码，就不需要这个-->
        <property name="password" value="${redis.password}" />
    </bean>

    <!-- Redis连接 -->
    <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
          p:shardInfo-ref="jedisShardInfo"
          p:poolConfig-ref="jedisPoolConfig" />

    <!-- 缓存序列化方式 -->
    <!-- 如果不配置Serializer，那么存储的时候只能使用String，如果用对象类型存储，那么会提示错误 can't cast to String！！！-->
    <bean id="keySerializer" class="org.springframework.data.redis.serializer.StringRedisSerializer" />
    <bean id="valueSerializer" class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer" />
    <bean id="hashKeySerializer" class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
    <bean id="hashValueSerializer" class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>

    <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"
            p:connectionFactory-ref="jedisConnectionFactory"
            p:keySerializer-ref="keySerializer"
            p:valueSerializer-ref="valueSerializer"
            p:enableTransactionSupport="false"
            p:hashKeySerializer-ref="hashKeySerializer"
            p:hashValueSerializer-ref="hashValueSerializer"/>
</beans>

三、在spring的配置文件中引入redis.xml

<import resource="classpath*:spring/redis.xml" />

四、编写dao层

public abstract class RedisGeneratorDao<K extends Serializable, V extends Serializable> {

    @Autowired
    protected RedisTemplate<K, V> redisTemplate;

    public void setRedisTemplate(RedisTemplate<K, V> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }

    /**
     * 获取 RedisSerializer
     */
    protected RedisSerializer<String> getRedisSerializer() {
        return redisTemplate.getStringSerializer();
    }

}

public interface MemberDao {
    public boolean add(final Member member);

    public boolean add(final List<Member> list);

    public void delete(String key);

    public void delete(List<String> keys);

    public boolean update(final Member member);

    public Member get(final String keyId);

    public void deleteStr(String key);
}

import org.burning.sport.redis.model.Member;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.stereotype.Repository;
import org.springframework.util.Assert;

import java.util.ArrayList;
import java.util.List;

@Repository("memberDao")
public class MemberDaoImpl extends RedisGeneratorDao<String, Member> implements MemberDao {

    /**
     * 添加对象
     * @param member
     * @return
     */
    @Override
    public boolean add(final Member member) {
        Boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {

            @Override
            public Boolean doInRedis(RedisConnection redisConnection) throws DataAccessException {
                RedisSerializer<String> serializer = getRedisSerializer();
                byte[] key = serializer.serialize(member.getId());
                byte[] name = serializer.serialize(member.getNickname());
                return redisConnection.setNX(key, name);
            }
        });
        return result;
    }


    /**
     * 添加集合
     * @param list
     * @return
     */
    @Override
    public boolean add(final List<Member> list) {
        Assert.notEmpty(list);
        Boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
            @Override
            public Boolean doInRedis(RedisConnection redisConnection) throws DataAccessException {
                RedisSerializer<String> serializer = getRedisSerializer();
                for(Member member : list) {
                    byte[] key = serializer.serialize(member.getId());
                    byte[] name = serializer.serialize(member.getNickname());
                    return redisConnection.setNX(key, name);
                }

                return true;
            }
        }, false, true);
        return false;
    }

    /**
     * 删除对象 ,依赖key
     * @param key
     */
    @Override
    public void delete(String key) {
        List<String> list = new ArrayList<String>();
        list.add(key);
        delete(list);
    }

    /**
     * 删除字符串
     * @param key
     */
    @Override
    public void deleteStr(String key) {
        redisTemplate.delete(key);
    }

    /**
     * 删除集合 ,依赖key集合
     * @param keys
     */
    @Override
    public void delete(List<String> keys) {
        redisTemplate.delete(keys);
    }

    /**
     * 修改对象
     * @param member
     * @return
     */
    @Override
    public boolean update(final Member member) {
        String key = member.getId();
        if(get(key) == null) {
            throw new NullPointerException("数据行不存在, key = " + key);
        }

        Boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
            @Override
            public Boolean doInRedis(RedisConnection redisConnection) throws DataAccessException {
                RedisSerializer<String> serializer = getRedisSerializer();
                byte[] key = serializer.serialize(member.getId());
                byte[] value = serializer.serialize(member.getNickname());
                redisConnection.setNX(key, value);
                return true;
            }
        });
        return result;
    }

    /**
     * 根据key获取对象
     * @param keyId
     * @return
     */
    @Override
    public Member get(final String keyId) {
        Member result = redisTemplate.execute(new RedisCallback<Member>() {
            @Override
            public Member doInRedis(RedisConnection redisConnection) throws DataAccessException {
                RedisSerializer<String> serializer = getRedisSerializer();
                byte[] key = serializer.serialize(keyId);
                byte[] value = redisConnection.get(key);
                if(value == null) {
                    return null;
                }

                String nickName = serializer.deserialize(value);
                return new Member(keyId, nickName);
            }
        });

        return result;
    }
}

五、编写service层

public interface MemberService {
    /**
     * 添加对象
     */
    public boolean add(final Member member);

    /**
     * 添加集合
     */
    public boolean add(final List<Member> list);
    /**
     * 删除对象 ,依赖key
     */
    public void delete(String key);

    /**
     * 删除字符串，依赖key
     * @param key
     */
    public void deleteStr(String key);
    /**
     * 删除集合 ,依赖key集合
     */
    public void delete(List<String> keys);

    /**
     * 修改对象
     */
    public boolean update(final Member member);
    /**
     * 根据key获取对象
     */
    public Member get(final String keyId);

}

@Service("memberService")
public class MemberServicefImpl implements MemberService {

    @Autowired
    private MemberDao memberDao;

    @Override
    public boolean add(Member member) {
        return memberDao.add(member);
    }

    @Override
    public boolean add(List<Member> list) {
        return memberDao.add(list);
    }

    @Override
    public void delete(String key) {
        memberDao.delete(key);
    }

    @Override
    public void deleteStr(String key) {
        memberDao.deleteStr(key);
    }

    @Override
    public void delete(List<String> keys) {
        memberDao.delete(keys);
    }

    @Override
    public boolean update(Member member) {
        return memberDao.update(member);
    }

    @Override
    public Member get(String keyId) {
        return memberDao.get(keyId);
    }
}

六、写测试类进行测试

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:applicationContext.xml"})
public class RedisTest {

    @Autowired
    private MemberService memberService;

    @Test
    public void redisAddMember() {
        Member member = new Member();
        member.setId("1");
        member.setNickname("ls");

        memberService.add(member);
    }

    @Test
    public void redisDeleteStr() {
        memberService.deleteStr("1");
    }

}

哨兵模式(sentinel)

就一个配置文件独特一点 redis-sentinel.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-4.0.xsd">

    <!--redis 哨兵模式(sentinel) 配置-->
    <bean id="redisSentinelConfiguration" class="org.springframework.data.redis.connection.RedisSentinelConfiguration">
        <property name="master">
            <bean class="org.springframework.data.redis.connection.RedisNode">
                <property name="name" value="mymaster" />
            </bean>
        </property>
        <property name="sentinels">
            <set>
                <bean class="org.springframework.data.redis.connection.RedisNode">
                    <constructor-arg index="0" value="10.6.1**.**6" /><!--ip-->
                    <constructor-arg index="1" value="9980" /><!--port-->
                </bean>
                <bean class="org.springframework.data.redis.connection.RedisNode">
                    <constructor-arg index="0" value="10.6.1**.**4" /><!--ip-->
                    <constructor-arg index="1" value="9980" /><!--port-->
                </bean>
            </set>
        </property>
    </bean>

    <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <constructor-arg ref="redisSentinelConfiguration"/>
    </bean>

    <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
        <property name="connectionFactory" value="jedisConnectionFactory" />
    </bean>
</beans>

https://gitee.com/play-happy/base-project