spring 删除redis

　　　　redisTemplate.execute(new RedisCallback() {
               public Long doInRedis(RedisConnection connection) throws DataAccessException {
                   long result = 0;
                   result = connection.del(Key.getBytes());
                   return result;
               }
           });

//举例

// 从缓存中取验证码,根据用户名,是否与传入的匹配

final String Key = cus.getUsername() + "verificationCode";

Object strVerificationCode = redisTemplate.opsForValue().get(Key);

if (strVerificationCode == null)// 验证码没取到     {

message.setCode(ConstantUtil.M_DATA_EXPIRE);

message.setMessage("验证码已过期,请重新获取");

this.out(response, message);      return;

}

if (!(strVerificationCode.equals(zipCode))) {

message.setCode(ConstantUtil.M_EXCEPTION);

message.setMessage("验证码错误");

this.out(response, message);

return;

} else {// 验证通过,删除验证码

redisTemplate.execute(new RedisCallback() {

public Long doInRedis(RedisConnection connection) throws DataAccessException {

long result = 0;

result = connection.del(Key.getBytes());

return result;

}

});

}