jedis與spring整合及簡單的使用RedisTemplate操作

整理一下redis與spring的整合。以及使用redisTemplate。首先是要導入spring所需要的jar。當然還有 jedis-2.1.0.jar，commons-pool-1.5.4.jar，spring-data-redis-1.0.0.RELEASE.jar  (這是我使用的版本，應該不新)

1. 導入完這些jar，開始整理配置文件：

首先就是web.xml。這個還是老樣子：貼一下吧

<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext*.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

還有就是spring配置文件，大家也就一看就明白了。我還是叫做applicationContext.xml，

<?xml version="1.0" encoding="utf-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-2.5.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd" default-lazy-init="false">
    <!-- 支持注解 -->
    <context:annotation-config />
    <!-- 組件掃描 -->
    <context:component-scan base-package="com.demo" />
    <context:property-placeholder location="classpath:redis.properties" />


    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <property name="maxActive" value="${redis.pool.maxActive}" />
        <property name="maxIdle" value="${redis.pool.maxIdle}" />
        <property name="maxWait" value="${redis.pool.maxWait}" />
        <property name="testOnBorrow" value="${redis.pool.testOnBorrow}" />
    </bean>

    <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <property name="hostName" value="${redis.ip}" />
        <property name="port" value="${redis.port}" />
        <property name="poolConfig" ref="jedisPoolConfig" />
    </bean>

    <bean id="template" class="org.springframework.data.redis.core.RedisTemplate">
        <property name="connectionFactory" ref="jedisConnectionFactory" />
    </bean>
    
    <bean id="userDao" class="com.demo.spring.UserDaoImpl">
        <property name="template" ref="template" />
    </bean>
    

</beans>

還有一個就是redis.properties了：

#最大分配的對象數  
redis.pool.maxActive=1024  
#最大能夠保持idel狀態的對象數  
redis.pool.maxIdle=200  
#當池內沒有返回對象時，最大等待時間  
redis.pool.maxWait=1000  
#當調用borrow Object方法時，是否進行有效性檢查  
redis.pool.testOnBorrow=true  
  
#IP  
redis.ip=127.0.0.1  
#Port  
redis.port=6379

好了，配置文件就是這些，也沒什么特別之處。

2.編寫一個User類：

public class User implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = -1530813282496676263L;
    private Integer id;
    private String name;

    
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

3.編寫一個userDao和UserDaoImpl

public interface UserDao {
    void save(User user);
    User read(User user);
    

}

public class UserDaoImpl implements UserDao {

    private RedisTemplate<Serializable, Serializable> template;

    public RedisTemplate<Serializable, Serializable> getTemplate() {
        return template;
    }

    public void setTemplate(RedisTemplate<Serializable, Serializable> template) {
        this.template = template;
    }

    public User read(final User user) {
//        User user2 = (User) template.execute(new RedisCallback<Object>() {
//            @Override
//            public User doInRedis(RedisConnection connection)throws DataAccessException {
//                byte[] key = template.getStringSerializer().serialize("id"+user.getId());
//                if(connection.exists(key)){
//                    byte[] value = connection.get(key);
//                    String name = template.getStringSerializer().deserialize(value);
//                    User user1 = new User();
//                    user1.setName(name);
//                    return user1;
//                }
//                return null;
//            }
//        });
        ValueOperations<Serializable, Serializable> opsForValue = template.opsForValue();
        User user2 = (User) opsForValue.get(user.getId());
        return user2;
        

    }

    public void save(final User user) {
//        template.execute(new RedisCallback<Object>() {
//            public Object doInRedis(RedisConnection connection) throws DataAccessException {
//                connection.set(template.getStringSerializer().serialize("id"+user.getId()), template.getStringSerializer().serialize(user.getName()));
//                return null;
//            }
//        });
        
        ValueOperations<Serializable, Serializable> opsForValue = template.opsForValue();
        opsForValue.set(user.getId(), user);
    }

}

這里注釋部分是另一種方法，也是可以的，自定義對象需要序列化  template.getStringSerializer().serialize("xxx");

注釋中connection方法很多例如：

connection.mGet(keys);//byte[]... keys
connection.mSet(tuple);//Map<byte[], byte[]> tuple
connection.lSet(key, index, value);//byte[] key, long index, byte[] value
connection.lRange(key, begin, end);//byte[] key, long begin, long end)等等

4.最后是測試類

private ApplicationContext app;
    private UserDao userDao;

    public UserDao getUserDao() {
        return userDao;
    }

    public void setUserDao(UserDao userDao) {
        this.userDao = userDao;
    }

    @Before
    public void before() throws Exception {
        app = new ClassPathXmlApplicationContext("applicationContext.xml");
　　　　 //得到userDao 對象
        userDao = (UserDao) app.getBean("userDao");
    }

    @Test
    public void test1() {

        String name = "fu";
        User user = new User();
        user.setName(name);
        user.setId(1);
        userDao.save(user);

        System.out.println("============添加完成");

        User u = userDao.read(user);

        System.out.println("============獲取:" + u.getName());
    }

 

哦了,基本的整合也就完成了。。