十六、市场活动：查看市场活动明细（一）

  功能需求

点击市场活动名称链接,跳转到明细页面,查看市场活动明细

           -市场活动的基本信息

           -市场活动下所有的备注信息

功能分析

流程图

 代码实现

一、ActivityMapper

1.ActivityMapper接口

    /**
     * 点击名称，查看市场详细
     */
    Activity selectActivityForDetailById(String id);

2.ActivityMapper映射文件，根据市场活动id查询Activity

 
        select a.id,
               u1.name as owner,
               a.name,
               a.start_date,
               a.end_date,
               a.cost,
               a.description,
               a.create_time,
               u2.name as create_by,
               a.edit_time,
               u3.name as edit_by
        from tbl_activity a
                 join tbl_user u1 on a.owner = u1.id
                 join tbl_user u2 on a.create_by = u2.id
                 left join tbl_user u3 on a.edit_by = u3.id
        where a.id = #{id}
 
 

二、ActivityService

	/**
	 * 点击名称，查看市场详细
	 */
	Activity queryActivityForDetail(String id);

	@Override
	public Activity queryActivityForDetail(String id) {
		return activityMapper.selectActivityForDetailById(id);
	}

三、ActivityController

	@RequestMapping("/workbench/activity/ActivityDetail.do")
	public String ActivityDetail(String id,HttpServletRequest request){
		// 调用activityService获取市场活动详细
		Activity activity = activityService.queryActivityForDetail(id);
		// 调用activityRemarkService,获取评论信息
		List activityRemarksList = activityRemarkService.queryActivityRemarkByActId(id);
		// 保存在请求域
		request.setAttribute("activity",activity);
		request.setAttribute("activityRemarksList",activityRemarksList);
		return "workbench/activity/detail";
	}

四、前端

1.index.jsp,给活动名称添加单击事件，参数是id 

2.detail.jsp，

①详细信息

通过${域名称.属性}

如${activity.id}等价于${requestScope.get("activity").id}

    

        
所有者
        

            ${requestScope.get("activity").owner}
        
名称
        

            ${requestScope.get("activity").name}
        

        

    

    

        
开始日期
        

            ${requestScope.get("activity").startDate}
        
结束日期
        

            ${requestScope.get("activity").endDate}
        

        

    
    

        
成本
        

            ${requestScope.get("activity").cost}
        

    
    

        
创建者
        

            ${requestScope.get("activity").createBy}  ${requestScope.get("activity").createTime}
        

    
    

        
修改者
        
${requestScope.get("activity").editBy}  ${requestScope.get("activity").editTime}
        

    
    

        
描述
        

            
                ${requestScope.get("activity").description}