Examples with BrowseHistory com.cas.sim.tis.entity.BrowseHistory used on opensource projects

Example 1 with BrowseHistory

use of com.cas.sim.tis.entity.BrowseHistory in project TeachingInSimulation by ScOrPiOzzy.

the class ResourceServiceImpl method browsed.

@Override
public void browsed(Integer id, Integer userId) {
    // 1.获取事务控制管理器
    DataSourceTransactionManager transactionManager = SpringUtil.getBean(DataSourceTransactionManager.class);
    // 2.获取事务定义
    DefaultTransactionDefinition def = new DefaultTransactionDefinition();
    // 3.设置事务隔离级别，开启新事务
    def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);
    // 4.获得事务状态
    TransactionStatus status = transactionManager.getTransaction(def);
    try {
        // 增加资源查看数量
        ResourceMapper resourceMapper = (ResourceMapper) mapper;
        resourceMapper.increaseBrowse(id);
        Condition condition = new Condition(BrowseHistory.class);
        condition.orderBy("createDate").asc();
        Criteria criteria = condition.createCriteria();
        criteria.andEqualTo("creator", userId);
        List<BrowseHistory> histories = browseHistoryService.findByCondition(condition);
        // 查看历史记录是否超过100条，注意这里是物理删除！！！
        if (histories.size() >= 100) {
            BrowseHistory history = histories.get(0);
            browseHistoryService.deleteById(history.getId());
        }
        BrowseHistory history = new BrowseHistory();
        history.setResourceId(id);
        history.setCreator(userId);
        browseHistoryService.save(history);
        transactionManager.commit(status);
    } catch (Exception e) {
        e.printStackTrace();
        transactionManager.rollback(status);
    }
}