Springboot核销但保存信息的代码详解

快来打我* 2023-07-04 14:21 4阅读 0赞

最近在做一个模拟卡卷发售平台的项目，接触到了**核销的概念**；  
**核销：即将卡卷类商品的状态修改为核销状态，并未真正的字面意思的销毁，不是进行物理删除操作，而是一种修改信息的操作。(不要被字面意思误导)**

下面上代码吧；  
首先是核销方法

/** * 核销 * @param ticket * @return */
        @PostMapping("edit")
        @ResponseBody
        public AjaxResult edit(Ticket ticket){ 
            System.out.println("-----核销对象------"+ticket.toString());
            boolean flag = false;
            if(ticket.getStatus() == Ticket.USE){ 
            	//获取当前的操作人
                ticket.setDeleteMan( Utility.getCurrentUsername() );
                //获取当前时间
                ticket.setDeleteDate( new Timestamp(System.currentTimeMillis()));
                //通过id去修改一个对象中的信息（框架自带）
                boolean flag1 = ticketService.updateById(ticket);
                System.out.println(ticket.getId());
                System.out.println(ticket.getTicketId());
    
                Integer ticketTypeId = ticketService.selectByIdReturnTicket(ticket.getId());
                //关联 卡卷数量信息表
                boolean flag2 = ticketNumService.updataSurface(ticketTypeId);
    
                if(flag1  && flag2 ){ 
                    flag = true;
                }
            }
            return toAjax(flag);
        }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZyaXN0amNqZG5jZw_size_16_color_FFFFFF_t_70]  
在这个Service的实现类里边的updataSurface方法

@Override
        public boolean updataSurface(Integer id) { 
            TicketNum ticketNum = ticketNumMapper.selectByIdReturnOne(id);
            if(ticketNum != null){ 
                Integer ticketSurplus = ticketNum.getTicketSurplus();
                Integer ticketWrite = ticketNum.getTicketWrite();
                if(ticketWrite+1 <= ticketNum.getTicketWhole() ){ ticketNum.setTicketWrite(ticketWrite+1);}
                if(ticketSurplus-1>= 0){  ticketNum.setTicketSurplus(ticketSurplus-1);}
                ticketNumMapper.updateById(ticketNum);
                return true;
            }
            else{ 
                return false;
            }
        }

删除操作也可以是类似的，只是修改卡卷的状态信息，而不进行物理删除。

这里可以参考一下我的代码 删除 批量删除 批量核销  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZyaXN0amNqZG5jZw_size_16_color_FFFFFF_t_70 1]

/** * 删除 * @param id * @return */
        @GetMapping("delete/{id}")
        @ResponseBody
        public AjaxResult delete(@PathVariable("id") Long id){ 
            Ticket ticket = ticketService.getById(id);
            ticket.setDeleteMan( Utility.getCurrentUsername() );
            ticket.setDeleteDate( new Timestamp(System.currentTimeMillis()));
            ticket.setStatus(Ticket.DELETE);
            boolean flag1 = ticketService.updateById(ticket);
    
            Integer ticketTypeId = ticketService.selectByIdReturnTicket(ticket.getId());
            boolean flag2 = ticketNumService.deleteSurface(ticketTypeId);
    
            boolean flag = false;
            if(flag1 && flag2 ){  flag = true; }
            return toAjax(flag);
        }
        /** * 批量删除 * @param ids * @return */
        @PostMapping("deleteAll")
        @ResponseBody
        public AjaxResult deleteAll(@RequestBody List<Long> ids){ 
    
            Collection<Ticket> tickets = ticketService.listByIds(ids);
            Timestamp timestamp = new Timestamp(System.currentTimeMillis());
            String currentUsername = Utility.getCurrentUsername();
            Iterator<Ticket> iterator = tickets.iterator();
    
            while(iterator.hasNext()){ 
                Ticket ticket = iterator.next();
                ticket.setStatus(Ticket.DELETE);
                ticket.setDeleteMan(currentUsername);
                ticket.setDeleteDate(timestamp);
                Integer ticketTypeId = ticketService.selectByIdReturnTicket(ticket.getId());
                boolean flag2 = ticketNumService.deleteSurface(ticketTypeId);
                if(flag2== false ){  return toAjax(flag2); }
            }
            return toAjax(ticketService.updateBatchById(tickets));
        }
    
    
        /** * 批量核销 * @param ids * @return */
        @PostMapping("updataAll")
        @ResponseBody
        public AjaxResult updataAll(@RequestBody List<Long> ids){ 
    
    
            Collection<Ticket> tickets = ticketService.listByIds(ids);
            String currentUsername = Utility.getCurrentUsername();
            Iterator<Ticket> iterator = tickets.iterator();
    
            while(iterator.hasNext()){ 
                Ticket ticket = iterator.next();
                ticket.setStatus(Ticket.USE);
                ticket.setDeleteMan(currentUsername);
                ticket.setDeleteDate(new Timestamp(System.currentTimeMillis()));
    
                Integer ticketTypeId = ticketService.selectByIdReturnTicket(ticket.getId());
                boolean flag2 = ticketNumService.updataSurface(ticketTypeId);
    
                if(flag2== false ){  return toAjax(flag2); }
            }
    
            boolean flag1 = ticketService.updateBatchById(tickets);
    
            boolean flag = false;
            if(flag1  ){  flag = true; }
    
            return toAjax(flag);
        }

service的实现类中删除的方法代码：

@Override
        public boolean deleteSurface(Integer id) { 
            TicketNum ticketNum = ticketNumMapper.selectByIdReturnOne(id);
            if(ticketNum != null){ 
                Integer ticketSurplus = ticketNum.getTicketSurplus();
                Integer ticketWrite = ticketNum.getTicketWrite();
                Integer ticketWhole = ticketNum.getTicketWhole();
                if(ticketWrite+1 <= ticketNum.getTicketWhole() ){ ticketNum.setTicketWrite(ticketWrite+1);}
                if(ticketSurplus-1>= 0){  ticketNum.setTicketSurplus(ticketSurplus-1);}
                if(ticketNum.getTicketWhole()!=0){  ticketNum.setTicketWhole(ticketWhole-1);}else{  return false; }
                ticketNumMapper.updateById(ticketNum);
                return true;
            }
            else{ 
                return false;
            }
        }

**一起加油进步！！！！**

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