详解springboot中redis的使用和分布式session共享问题

  <!--redis配置开始-->
  <dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-redis</artifactId>
  </dependency>
  <dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-redis</artifactId>
   <version>${spring-data-redis.version}</version>
  </dependency>
  <dependency>
   <groupId>redis.clients</groupId>
   <artifactId>jedis</artifactId>
   <version>${jedis.version}</version>
  </dependency>
  <dependency>
   <groupId>org.springframework.session</groupId>
   <artifactId>spring-session-data-redis</artifactId>
  </dependency>
  <!--redis配置结束-->

package com.mos.quote.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;

/**
 * @author Administrator
 */
@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport {
  @Bean
  public KeyGenerator KeyGenerator(){
    return (target, method, params) -> {
      StringBuilder sb = new StringBuilder();
      sb.append(target.getClass().getName());
      sb.append(method.getName());
      for (Object obj : params) {
        sb.append(obj.toString());
      }
      return sb.toString();
    };
  }

  @Bean
  public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
    StringRedisTemplate template = new StringRedisTemplate(factory);
    Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
    ObjectMapper om = new ObjectMapper();
    om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
    om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
    jackson2JsonRedisSerializer.setObjectMapper(om);
    template.setValueSerializer(jackson2JsonRedisSerializer);
    template.afterPropertiesSet();
    return template;
  }

  @Bean
  public CacheManager cacheManager(RedisTemplate<String,String> redisTemplate) {
    RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
    //设置缓存过期时间
    rcm.setDefaultExpiration(600000);
    return rcm;
  }
}

# Redis数据库索引（默认为0）
spring.redis.database=0
# Redis服务器地址
spring.redis.host=192.168.1.118
# Redis服务器连接端口
spring.redis.port=6381
# Redis服务器连接密码（默认为空）
spring.redis.password=
# 连接池最大连接数（使用负值表示没有限制）
spring.redis.pool.max-active=8
# 连接池最大阻塞等待时间（使用负值表示没有限制）
spring.redis.pool.max-wait=-1
# 连接池中的最大空闲连接
spring.redis.pool.max-idle=8
# 连接池中的最小空闲连接
spring.redis.pool.min-idle=0
# 连接超时时间（毫秒）
spring.redis.timeout=0

  @Test
  public void put(){
    stringRedisTemplate.opsForValue().set("test001","test001");
    Assert.assertEquals("test001", stringRedisTemplate.opsForValue().get("test001"));
  }

 @Test
  public void testObj() throws Exception {
    SysUser user=new SysUser();
    user.setId("123456");
    user.setName("张三");
    ValueOperations<String, SysUser> operations=redisTemplate.opsForValue();
    operations.set("user1", user);
    operations.set("user2", user,5, TimeUnit.SECONDS);
    Thread.sleep(6000);
    Assert.assertFalse(redisTemplate.hasKey("user2"));
  }

package com.mos.quote.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;

/**
 * @author Administrator
 */
@Configuration
@EnableRedisHttpSession(maxInactiveIntervalInSeconds = 3000)
public class SessionConfig {
}

@RequestMapping("testSessionTimeOut")
  public String testSessionTimeOut(String id,HttpSession session,Model model){
    Area area = areaService.getById(id);
    System.out.println("sessionId-------->"+session.getId());
    model.addAttribute("area",JSON.toJSONString(area));
    session.setAttribute("area",JSON.toJSONString(area));
    return "demo/test1";
  }