待开会议sql编写其实与我的会议sql大同小异,主要区别在于:待开会议需要匹配三个数据库列段
对比一下:

主要区别已用方框标记出来

待开会议SQL:
- select CONCAT(canyuze,',',liexize,',',zhuchiren),a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren,
- b.name zhuchirenname,a.location,
- DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime,
- DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime,
- a.state,
- (
- case a.state
- when 0 then '取消会议'
- when 1 then '新建'
- when 2 then '待审核'
- when 3 then '驳回'
- when 4 then '待开'
- when 5 then '进行中'
- when 6 then '开启投票'
- when 7 then '结束会议'
- else '其他' end
- ) meetingstate,
- a.seatPic,a.remark,a.auditor,c.name anditorname from t_oa_meeting_info a
- inner join t_oa_user b on a.zhuchiren = b.id
- left join t_oa_user c on a.auditor = c.id where 1=1 and state =4 and FIND_IN_SET(6,CONCAT(canyuze,',',liexize,',',zhuchiren))
分析:
我们只需要查询出状态为4,即为待开的会议(state=4)
函数find_in_set(y,xxx)y里放用户编号,xxx中放的包括参与者以及列席人员和主持人的编号,如果用户的编号存在于后面三个字段中就查询出来,意思就是该用户存在于这个会议中,是参会人员中的一员
与待开会议的区别已用方框圈出

全部会议不需要限制状态,并且需要新增一个审批人列段
注意:如果当前会议还没有送审也就是没有审批人的情况下,我们需要用ifnull函数设它编号为-1,否则会发生数据丢失
全部会议SQL:
- select CONCAT(a.canyuze,',',a.liexize,',',a.zhuchiren,',',IFNULL(a.auditor,-1)),a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren,
- b.name zhuchirenname,a.location,
- DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime,
- DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime,
- a.state,
- (
- case a.state
- when 0 then '取消会议'
- when 1 then '新建'
- when 2 then '待审核'
- when 3 then '驳回'
- when 4 then '待开'
- when 5 then '进行中'
- when 6 then '开启投票'
- when 7 then '结束会议'
- else '其他' end
- ) meetingstate,
- a.seatPic,a.remark,a.auditor,c.name anditorname from t_oa_meeting_info a
- inner join t_oa_user b on a.zhuchiren = b.id
- left join t_oa_user c on a.auditor = c.id where 1=1 and FIND_IN_SET(6,CONCAT(a.canyuze,',',a.liexize,',',a.zhuchiren,',',IFNULL(a.auditor,-1)))
第一步我们先导入待开会议的jsp页面与js文件
全部会议jsp页面

js文件

代码展示:
- let layer,form,table,$;
- var row;
- layui.use(['layer','form','table'],function(){
- layer=layui.layer,form=layui.form,table=layui.table,$=layui.jquery;
-
- //初始化会议列表
- initMeeting();
-
- //绑定查询按钮的点击事件
- $('#btn_meeting_search').click(function(){
- query();
- });
- });
-
- //1.初始化会议列表
- function initMeeting(){
- table.render({ //执行渲染
- elem: '#tb_meeting', //指定原始表格元素选择器(推荐id选择器)
- height: 400, //自定义高度
- loading: false, //是否显示加载条(默认 true)
- cols: [[ //设置表头
- {field: 'title', title: '会议标题', width: 180},
- {field: 'location', title: '会议地点', width: 120},
- {field: 'startTime', title: '开始时间', width: 180},
- {field: 'endTime', title: '结束时间', width: 180},
- {field: 'meetingstate', title: '会议状态', width: 90},
- {field: 'zhuchirenname', title: '主持人', width: 120},
- //{field: '', title: '操作', width: 260, toolbar: '#tbMeeting'}
- ]]
- });
- }
-
- //2.待开会议
- function query(){
- table.reload('tb_meeting', {
- url: 'info.action', //请求地址
- method: 'POST', //请求方式,GET或者POST
- loading: true, //是否显示加载条(默认 true)
- page: true, //是否分页
- where: { //设定异步数据接口的额外参数,任意设
- 'methodName':'queryMeetingInfoByState',
- 'title':$('#title').val(),
- 'zhuchiren':$('#userid').val(),
- 'state':4
- },
- request: { //自定义分页请求参数名
- pageName: 'page', //页码的参数名称,默认:page
- limitName: 'rows' //每页数据量的参数名,默认:limit
- },
- done: function (res, curr, count) {
- //查询完成的回调函数
- }
- });
- }
导入成功后我们开始编写dao方法,将我们的sql语句放入
- // 待开会议
- public List
- String sql=" select CONCAT(canyuze,',',liexize,',',zhuchiren),a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren,\r\n" +
- " b.name zhuchirenname,a.location,\r\n" +
- " DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime,\r\n" +
- " DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime,\r\n" +
- " a.state,\r\n" +
- " (\r\n" +
- " case a.state\r\n" +
- " when 0 then '取消会议'\r\n" +
- " when 1 then '新建'\r\n" +
- " when 2 then '待审核'\r\n" +
- " when 3 then '驳回'\r\n" +
- " when 4 then '待开'\r\n" +
- " when 5 then '进行中'\r\n" +
- " when 6 then '开启投票'\r\n" +
- " when 7 then '结束会议'\r\n" +
- " else '其他' end\r\n" +
- " ) meetingstate,\r\n" +
- " a.seatPic,a.remark,a.auditor,c.name anditorname from t_oa_meeting_info a\r\n" +
- " inner join t_oa_user b on a.zhuchiren = b.id\r\n" +
- " left join t_oa_user c on a.auditor = c.id where 1=1 and state =4 and FIND_IN_SET("+info.getZhuchiren()+",CONCAT(canyuze,',',liexize,',',zhuchiren))\r\n" +
- " ";
- return super.executeQuery(sql, pageBean);
- }
在web层调用:
-
- // 待开会议
- public String queryMeetingInfoByState(HttpServletRequest req, HttpServletResponse resp) {
- try {
- PageBean pageBean = new PageBean();
- pageBean.setRequest(req);
- List
- // 注意:layui中的数据表的格式
- ResponseUtil.writeJson(resp, R.ok(0, "待开会议数据查询成功",pageBean.getTotal(),lst));
- } catch (Exception e) {
- e.printStackTrace();
- try {
- ResponseUtil.writeJson(resp, R.ok(0, "待开会议数据查询失败"));
- } catch (Exception e1) {
- e1.printStackTrace();
- }
- }
- return null;
- }
导入全部会议jsp页面

js页面:

代码展示:
- let layer,form,table,$;
- var row;
- layui.use(['layer','form','table'],function(){
- layer=layui.layer,form=layui.form,table=layui.table,$=layui.jquery;
-
- //初始化会议列表
- initMeeting();
-
- //绑定查询按钮的点击事件
- $('#btn_meeting_search').click(function(){
- query();
- });
- });
-
- //1.初始化会议列表
- function initMeeting(){
- table.render({ //执行渲染
- elem: '#tb_meeting', //指定原始表格元素选择器(推荐id选择器)
- height: 400, //自定义高度
- loading: false, //是否显示加载条(默认 true)
- cols: [[ //设置表头
- {field: 'title', title: '会议标题', width: 180},
- {field: 'location', title: '会议地点', width: 120},
- {field: 'startTime', title: '开始时间', width: 180},
- {field: 'endTime', title: '结束时间', width: 180},
- {field: 'meetingstate', title: '会议状态', width: 90},
- {field: 'zhuchirenname', title: '主持人', width: 120},
- //{field: '', title: '操作', width: 260, toolbar: '#tbMeeting'}
- ]]
- });
- }
-
- //2.查询所有会议
- function query(){
- table.reload('tb_meeting', {
- url: 'info.action', //请求地址
- method: 'POST', //请求方式,GET或者POST
- loading: true, //是否显示加载条(默认 true)
- page: true, //是否分页
- where: { //设定异步数据接口的额外参数,任意设
- 'methodName':'allInfos',
- 'title':$('#title').val(),
- 'zhuchiren':$('#userid').val()
- },
- request: { //自定义分页请求参数名
- pageName: 'page', //页码的参数名称,默认:page
- limitName: 'rows' //每页数据量的参数名,默认:limit
- },
- done: function (res, curr, count) {
- //查询完成的回调函数
- }
- });
- }
开始编写dao方法,将我们的sql语句放入
- //所有会议
- public List
- String sql=" select CONCAT(a.canyuze,',',a.liexize,',',a.zhuchiren,',',IFNULL(a.auditor,-1)),a.id,a.title,a.content,a.canyuze,a.liexize,a.zhuchiren,\r\n" +
- " b.name zhuchirenname,a.location,\r\n" +
- " DATE_FORMAT(a.startTime,'%Y-%m-%d %H-%m-%s') startTime,\r\n" +
- " DATE_FORMAT(a.endTime,'%Y-%m-%d %H-%m-%s') endTime,\r\n" +
- " a.state,\r\n" +
- " (\r\n" +
- " case a.state\r\n" +
- " when 0 then '取消会议'\r\n" +
- " when 1 then '新建'\r\n" +
- " when 2 then '待审核'\r\n" +
- " when 3 then '驳回'\r\n" +
- " when 4 then '待开'\r\n" +
- " when 5 then '进行中'\r\n" +
- " when 6 then '开启投票'\r\n" +
- " when 7 then '结束会议'\r\n" +
- " else '其他' end\r\n" +
- " ) meetingstate,\r\n" +
- " a.seatPic,a.remark,a.auditor,c.name anditorname from t_oa_meeting_info a\r\n" +
- " inner join t_oa_user b on a.zhuchiren = b.id\r\n" +
- " left join t_oa_user c on a.auditor = c.id where 1=1 and FIND_IN_SET("+info.getZhuchiren()+",CONCAT(a.canyuze,',',a.liexize,',',a.zhuchiren,',',IFNULL(a.auditor,-1)))";
- return super.executeQuery(sql, pageBean);
- }
在web层进行调用:
- // 所有会议
- public String allInfos(HttpServletRequest req, HttpServletResponse resp) {
- try {
- PageBean pageBean = new PageBean();
- pageBean.setRequest(req);
- List
- // 注意:layui中的数据表的格式
- ResponseUtil.writeJson(resp, R.ok(0, "所有会议数据查询成功",pageBean.getTotal(),lst));
- } catch (Exception e) {
- e.printStackTrace();
- try {
- ResponseUtil.writeJson(resp, R.ok(0, "所有会议数据查询失败"));
- } catch (Exception e1) {
- e1.printStackTrace();
- }
- }
- return null;
- }
最终效果展示:
所有会议:
待开会议:
