@Cacheable(key = "'userCache'") //緩存,
    public Uuser findByEmail(String email) { 
        System.err.println("執(zhí)行這里，說(shuō)明緩存中讀取不到數(shù)據(jù)，直接讀取數(shù)據(jù)庫(kù)....");
        return redisMapper.findByEmail(email);
    }
  @CachePut(key = "'userCache'") //userCache要加‘'單引號(hào)，表示這是一個(gè)字符串
    public Uuser updateSelf(String nickname, String email) {
        System.err.println("執(zhí)行這里，更新數(shù)據(jù)庫(kù)，更新緩存....");
        uuserMapper.updateSelf(nickname, email);
        Uuser uuser = redisMapper.findByEmail(email); 
        return uuser;  
    }

/**
 *
 * @param id
 * @return
 */
@Caching( put = {
        @CachePut(key = "T(cn.a.b.constant.RedisKey).OPEN_MEDIUM_INFO + #result.mediumBankCard", unless="#result.mediumBankCard==null or #result.status !='2'"),
        @CachePut(key = "T(a.b.c.constant.RedisKey).ACCOUNT_CODE + #result.accountCode", unless="!{'0','1','2','3'}.contains(#result.mediumStatus)"),
        @CachePut(key = "T(a.b.c.constant.RedisKey).CERT_NO+ #result.certNo", unless="#result.certNo==null or !{'0','1','2','3'}.contains(#result.status)")
}
, cacheable = {@Cacheable(key="T(a.b.c.constant.RedisKey).ID  + #id")}
)
public XXXInfo selectByPrimaryKey(Long id){
    return mapper.selectByPrimaryKey(id);
}

Service.java
/**
 *
 * @param id
 * @return
 */
@Caching( put = {
        @CachePut(key = "T(cn.a.b.constant.RedisKey).OPEN_MEDIUM_INFO + #result.mediumBankCard", unless="#result.mediumBankCard==null or #result.status !='2'"),
        @CachePut(key = "T(a.b.c.constant.RedisKey).ACCOUNT_CODE + #result.accountCode", unless="!{'0','1','2','3'}.contains(#result.mediumStatus)"),
        @CachePut(key = "T(a.b.c.constant.RedisKey).CERT_NO+ #result.certNo", unless="#result.certNo==null or !{'0','1','2','3'}.contains(#result.status)")
}
)
public XXXInfo selectByPrimaryKey(Long id){
    return mapper.selectByPrimaryKey(id);
} 

Mapper.java
{
    @Cacheable(key="T(a.b.c.constant.RedisKey).ID  + #p0")
    XXXXInfo selectByPrimaryKey(Long id);
}