[计算机毕业设计]基于SSM的班级同学录管理系统 后台接口设计

package com.service.impl; import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.Map; import org.springframework.stereotype.Service; import com.baomidou.mybatisplus.mapper.EntityWrapper; import com.baomidou.mybatisplus.mapper.Wrapper; import com.baomidou.mybatisplus.plugins.Page; import com.baomidou.mybatisplus.service.impl.ServiceImpl; import com.dao.TokenDao; import com.entity.TokenEntity; import com.entity.TokenEntity; import com.service.TokenService; import com.utils.CommonUtil; import com.utils.PageUtils; import com.utils.Query; /** * token */ @Service("tokenService") public class TokenServiceImpl extends ServiceImpl<TokenDao, TokenEntity> implements TokenService { @Override public PageUtils queryPage(Map<String, Object> params) { Page<TokenEntity> page = this.selectPage( new Query<TokenEntity>(params).getPage(), new EntityWrapper<TokenEntity>() ); return new PageUtils(page); } @Override public List<TokenEntity> selectListView(Wrapper<TokenEntity> wrapper) { return baseMapper.selectListView(wrapper); } @Override public PageUtils queryPage(Map<String, Object> params, Wrapper<TokenEntity> wrapper) { Page<TokenEntity> page =new Query<TokenEntity>(params).getPage(); page.setRecords(baseMapper.selectListView(page,wrapper)); PageUtils pageUtil = new PageUtils(page); return pageUtil; } @Override public String generateToken(Long userid,String username, String tableName, String role) { TokenEntity tokenEntity = this.selectOne(new EntityWrapper<TokenEntity>().eq("userid", userid).eq("role", role)); String token = CommonUtil.getRandomString(32); Calendar cal = Calendar.getInstance(); cal.setTime(new Date()); cal.add(Calendar.HOUR_OF_DAY, 1); if(tokenEntity!=null) { tokenEntity.setToken(token); tokenEntity.setExpiratedtime(cal.getTime()); this.updateById(tokenEntity); } else { this.insert(new TokenEntity(userid,username, tableName, role, token, cal.getTime())); } return token; } @Override public TokenEntity getTokenEntity(String token) { TokenEntity tokenEntity = this.selectOne(new EntityWrapper<TokenEntity>().eq("token", token)); if(tokenEntity == null || tokenEntity.getExpiratedtime().getTime()<new Date().getTime()) { return null; } return tokenEntity; } }