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package io.hmit.service.impl;
import io.hmit.common.service.impl.BaseServiceImpl;
import io.hmit.dao.TokenDao;
import io.hmit.entity.TokenEntity;
import io.hmit.service.TokenService;
import org.springframework.stereotype.Service;
import java.util.Date;
import java.util.UUID;
@Service
public class TokenServiceImpl extends BaseServiceImpl<TokenDao, TokenEntity> implements TokenService {
/**
* 12小时后过期
*/
private final static int EXPIRE = 3600 * 12;
@Override
public TokenEntity getByToken(String token) {
return baseDao.getByToken(token);
}
@Override
public TokenEntity createToken(Long userId) {
//当前时间
Date now = new Date();
//过期时间
Date expireTime = new Date(now.getTime() + EXPIRE * 1000);
//用户token
String token;
//判断是否生成过token
TokenEntity tokenEntity = baseDao.getByUserId(userId);
if (tokenEntity == null) {
//生成一个token
token = generateToken();
tokenEntity = new TokenEntity();
tokenEntity.setUserId(userId);
tokenEntity.setToken(token);
tokenEntity.setUpdateDate(now);
tokenEntity.setExpireDate(expireTime);
//保存token
this.insert(tokenEntity);
} else {
//判断token是否过期
if (tokenEntity.getExpireDate().getTime() < System.currentTimeMillis()) {
//token过期，重新生成token
token = generateToken();
} else {
token = tokenEntity.getToken();
}
tokenEntity.setToken(token);
tokenEntity.setUpdateDate(now);
tokenEntity.setExpireDate(expireTime);
//更新token
this.updateById(tokenEntity);
}
return tokenEntity;
}
@Override
public void expireToken(Long userId) {
Date now = new Date();
TokenEntity tokenEntity = new TokenEntity();
tokenEntity.setUserId(userId);
tokenEntity.setUpdateDate(now);
tokenEntity.setExpireDate(now);
this.updateById(tokenEntity);
}
private String generateToken() {
return UUID.randomUUID().toString().replace("-", "");
}
}