SpringBoot 整合Redis 数据库的方法

wget http://download.redis.io/releases/redis-4.0.8.tar.gz
tar xzf redis-4.0.8.tar.gz
cd redis-4.0.8
make

src/redis-cli
redis> set foo bar
OK
redis> get foo
"bar"

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

#redis配置
 redis:
# 数据库索引
  database: 0
#  服务器地址
  host: 127.0.0.1
#  服务器连接端口
  port: 6379
#  链接密码
  password:
#  链接池
  pool:
#  最大连接数（负值表示没有限制）
   max-active: 8
#   最大阻塞等待时间（负值表示没有限制）
   max-wait: 1
#   最大空闲链接
   max-idle: 8
#   最小空闲链接
   min-idle: 0
#  链接超时时间（毫秒）
  timeout: 0

spring.redis.hostName=127.0.0.1
spring.redis.port=6379  
spring.redis.pool.maxActive=8  
spring.redis.pool.maxWait=-1  
spring.redis.pool.maxIdle=8  
spring.redis.pool.minIdle=0  
spring.redis.timeout=0

@Configuration 
@EnableCaching//开启注解 
public class RedisConfig extends CachingConfigurerSupport {
  @Bean
  public CacheManager cacheManager(RedisTemplate<?,?> redisTemplate) {
    CacheManager cacheManager = new RedisCacheManager(redisTemplate);
    return cacheManager;
  }
  @Bean
  public RedisTemplate<String, String> redisTemplate(RedisConnectionFactory factory) {
    RedisTemplate<String, String> redisTemplate = new RedisTemplate<String, String>();
    redisTemplate.setConnectionFactory(factory);
    return redisTemplate;
  }
}

public interface RedisService {
  public void set(String key, Object value); 
  public Object get(String key); 
}

@Service
public class RedisServiceImpl implements RedisService {
  @Resource
  private RedisTemplate<String,Object> redisTemplate;
  public void set(String key, Object value) {
    ValueOperations<String,Object> vo = redisTemplate.opsForValue();
     vo.set(key, value);
  }
  public Object get(String key) {
    ValueOperations<String,Object> vo = redisTemplate.opsForValue();
    return vo.get(key);
  }
}

@Controller
@RequestMapping(path="/user")
public class UserController {
  @Autowired
  private UserService userService;
  @Autowired
  private RedisService redisService;
  //从redis获取某个用户
  @RequestMapping(value = "/getuserfromredis", method = RequestMethod.GET)
  public @ResponseBody User getRedis(@RequestParam String key) {
    return (User)redisService.get(key);
  }
  //获取所有用户
  @RequestMapping(value = "/getusers", method = RequestMethod.GET)
  public @ResponseBody Page<User> list(Model model, Pageable pageable){
    return userService.findAll(pageable); 
  }
  //添加用户
  @GetMapping(value="/adduser")
  public @ResponseBody String addUser(@RequestParam String dictum,
      @RequestParam String password, @RequestParam String username) {
    User user = new User();
    user.setDictum(dictum);
    user.setPassword(password);
    user.setUsername(username);
    System.out.println(user);
    userService.saveUser(user);
    redisService.set(user.getId()+"", user);
    return "Saved";
  }
}

@Entity
@Table(name="s_user")
public class User implements Serializable {
  private static final long serialVersionUID = 1L;
  @Id 
  @GeneratedValue(strategy=GenerationType.AUTO)
  private Integer id;
  private String username;
  private String password;
  private String dictum;
  @OneToMany(mappedBy = "user", fetch = FetchType. LAZY, cascade = {CascadeType. ALL})
  private Set<Photo> setPhoto;
  //省略getter和setter
  @Override
  public String toString() {
    return "User [id=" + id + ", username=" + username + ", password="
        + password + ", dictum=" + dictum + ", setPhoto=" + setPhoto
        + "]";
  }
}