APP
1.凍結(jié)用戶，將數(shù)據(jù)存入Redis，并設(shè)置key的失效時間。
2.解凍用戶，刪除Redis數(shù)據(jù)
3.探花系統(tǒng)在用戶登錄，評論，發(fā)布動態(tài)時判斷其凍結(jié)狀態(tài)，如果被凍結(jié)拋出異常
用戶狀態(tài)枚舉
public enum UserStatusEnum {
FREEZE_LOGIN("1","凍結(jié)登錄"),
FREEZE_FANYAN("2","凍結(jié)評論"),
FREEZE_DONGTAI("3","凍結(jié)發(fā)布動態(tài)");
private String code;
private String msg;
UserStatusEnum(String code, String msg) {
this.code = code;
this.msg = msg;
}
public String getCode() {
return code;
}
public String getMsg() {
return msg;
}
}
后臺代碼
/**
* 凍結(jié)用戶
* @param map
* @return
*/
public HashMap<String, String> freezeUser(Map map) {
// 1.構(gòu)造key
String userId = map.get("userId").toString();
String key = Constants.FREEZE_USER + userId;
// 2.獲取凍結(jié)時間,設(shè)置redis的存活時間
int day=0;
Integer freezingTime = Integer.parseInt(map.get("freezingTime").toString()) ;
if (freezingTime==1){
day=3;
}
if (freezingTime==2){
day=7;
}
// 3.存入redis
String value = JSON.toJSONString(map);
if (day>0){
redisTemplate.opsForValue().set(key,value,day,TimeUnit.DAYS);
}else {
redisTemplate.opsForValue().set(key,value);
}
HashMap<String, String> msg = new HashMap<>();
msg.put("message","凍結(jié)用戶成功");
return msg;
}
/**
* 解凍用戶
* @param map
* @return
*/
public HashMap<Object, Object> unfreezeUser(Map map) {
String userId = map.get("userId").toString();
String key = Constants.FREEZE_USER + userId;
redisTemplate.delete(key);
HashMap<Object, Object> res = new HashMap<>();
res.put("message","解凍用戶成功");
return res;
}
前臺代碼
@Service
public class UserFreezeService {
@Autowired
private RedisTemplate redisTemplate;
public void checkStatus(String freezeRange, Long userId) {
// 取出value,判斷封禁類型
String key = Constants.FREEZE_USER + userId.toString();
String vlaue = (String) redisTemplate.opsForValue().get(key);
if (!StringUtils.isEmpty(vlaue)) {
Map map = JSON.parseObject(vlaue, Map.class);
String range = (String) map.get("freezingRange");
// 取出封禁類型進行判斷
if (freezeRange.equals(range)) {
throw new BusinessException(ErrorResult.countError());
}
}
}
}
本文摘自 ：https://www.cnblogs.com/
