redis学习之 spring集成（一）

1、jar包

<dependency>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-redis</artifactId>
  <version>1.7.2.RELEASE</version>
</dependency>
<dependency>
  <groupId>redis.clients</groupId>
  <artifactId>jedis</artifactId>
  <version>2.9.0</version>
</dependency>

2、JavaBean 配置

<bean id="poolConfig" class=" redis.clients.jedis.JedisPoolConfig">
  <!-- 最大空闲数 -->
  <property name="maxIdle" value="50" />
  <!-- 最大连接数 -->
  <property name="maxTotal" value="100" />
  <!-- 最大等待时间 -->
  <property name="maxWaitMillis" value="20000" />
</bean>

<bean id="connectionFactory" class=" org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
  <property name="hostName" value="localhost" />
  <property name="port" value="6379" />
  <!-- <property name="password" value="localhost"/> -->
  <property name="poolConfig" ref="poolConfig" />
</bean>
  
<bean id="jdkSerializationRedisSerializer" class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"></bean>
  
<bean id="stringRedisSerializer" class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean>
  
<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
  <property name="connectionFactory" ref="connectionFactory" />
  <property name="defaultSerializer" ref="stringRedisSerializer" />
  <property name="keySerializer" ref="stringRedisSerializer" />
  <property name="valueSerializer" ref="jdkSerializationRedisSerializer" />
</bean>

3、使用redisTemplate存取值

注意事项：
由于配置文件中使用的是jdkSerializationRedisSerializer，所以entity必须实现序列化

1. 实体类

   public class Role implements Serializable {
   
       private Integer roleId;
   
       private String roleName;
       // 省略getter setter 
   }
   

2. 调用和存取

   @Controller
   public class TestController {
   
     @Autowired
     private RedisTemplate redisTemplate;
   
     @RequestMapping("/test")
     public void test() {
       Role role = new Role();
       role.setRoleId(1);
       role.setRoleName("admin");
       // 存值
       redisTemplate.opsForValue().set("role_1", role);
       // 取值
       Role role2 = (Role) redisTemplate.opsForValue().get("role_1");
       System.out.println(role2.getRoleName());
     }
   }
   

3. 使用同一连接的写法

   @Controller
   public class TestController {
   
     @Autowired
     private RedisTemplate redisTemplate;
   
     @RequestMapping("/test")
     public void test() {
       Role role = new Role();
       role.setRoleId(1);
       role.setRoleName("admin");
       // 同一连接
       SessionCallback callBack = new SessionCallback<Role>() {
   
         @Override
         public Role execute(RedisOperations operations) throws DataAccessException {
           operations.boundValueOps("role_1").set(role);
           return (Role) operations.boundValueOps("role_1").get();
         }
       };
       // 取值
       Role role2 = (Role) redisTemplate.execute(callBack);
       System.out.println(role2.getRoleName());
     }
   }