zoukankan      html  css  js  c++  java
  • 一对一关联查询,删除操作基于ssh

    //实体类关联--agent表的user_id关联着user 表的id主键
    @OneToOne(cascade = { CascadeType.ALL }) @JoinColumn(name = "user_id") private User user ; //

    删除操作

    //删除商家
            @RequestMapping("/delete_agent.do")
            @ResponseBody
            public Map<String,Object> delete_business(int id){
                Map<String,Object> map=new HashMap<String,Object>();
                Agent agent;
                try {
                    agent=agentService.getbyId(id);//查询获取agent表对应id的数据--在这就查出了对应user表id关联的user_id
                    agentService.delete(agent.getUser().getId());//调用删除方法,将user_id传到实现层
                    map.put("flag","1");
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    logger.error("删除商家失败", e);
                    map.put("flag","0");
                }
                
                return map;
            }

    实现层impl

    @Override
        public int delete(int id) throws Exception {
            String hql="update User set status=0 where id=?";//在这里,虽然是agentimpl,但是能将hibernate语句更新user表
            List<Object> param=new ArrayList<Object>();
            param.add(id);
            return dao.exculeByParams(hql, param);
        }
  • 相关阅读:
    XtraFinder在OSX10.11的使用
    meterpreter > migrate 1548
    meterpreter > ps
    meterpreter > sysinfo
    meterpreter > screenshot
    ubuntu
    一次真是渗透
    nmap -sT -A --script=smb-check-vulns -PO 172.16.21.170
    use scanner/smb/smb_version
    scanner/portscan/syn
  • 原文地址:https://www.cnblogs.com/fdxjava/p/11550318.html
Copyright © 2011-2022 走看看