标签：amt dao层 set map 自动 from jackson redist ash
spring 集成的redis操作几乎都在RedisTemplate内了。
已spring boot为例，
再properties属性文件内配置好
redis的参数
spring.redis.host=127.0.0.1 spring.redis.port=6379 spring.redis.password=redispass spring.redis.database=0 spring.redis.timeout=5000
再到 Application启动类下加入以下代码：
@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory)
{
Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
ObjectMapper om = new ObjectMapper();
om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
template.setConnectionFactory(redisConnectionFactory); //线程安全的连接工程
template.setKeySerializer(jackson2JsonRedisSerializer); //key序列化方式采用fastJson
template.setValueSerializer(jackson2JsonRedisSerializer); //value序列化方式
template.setHashKeySerializer(jackson2JsonRedisSerializer);
template.setHashValueSerializer(jackson2JsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
这样就可以在需要的时候直接使用自动注入（@Autowired）获取redisTemplate操作redis了:
@Autowired
private RedisTemplate<String, String> redisTemplate;
@Override
public Result selectUserById(String id) {
if(StringUtils.isEmpty(id)){
throw new BusinessException(CommonConstants.ErrorCode.ERROR_ILLEGAL_PARAMTER);//ID为空
}
String redisCache = redisTemplate.opsForValue().get(CacheKeys.SELECT_USER_PHONE_KEYS+id);
if(redisCache!=null){
Result result = new Gson().fromJson(redisCache, Result.class);
if(result.getResult() == null){
throw new BusinessException(CommonConstants.ErrorCode.ERROR_ILLEGAL_USER);//用户不存在
}
return result;
}
User selectByPrimaryKey = userMapper.selectByPrimaryKey(id); //自己项目的Dao层
redisTemplate.opsForValue().set(CacheKeys.SELECT_USER_PHONE_KEYS+id, CommonConstants.GSONIGNORENULL.toJson(new Result(selectByPrimaryKey)), 1, TimeUnit.HOURS); //缓存有效时间为1天
if(selectByPrimaryKey == null){
throw new BusinessException(CommonConstants.ErrorCode.ERROR_ILLEGAL_USER);//用户不存在
}
return new Result(selectByPrimaryKey);
}
标签：amt dao层 set map 自动 from jackson redist ash
原文地址：http://www.cnblogs.com/tietazhan/p/7479585.html
