站长资讯网
一.前端部分
html只需要放一个有id的div就行了，方便js获取渲染区域
<div id="data_grid" lay-filter="demo" ></div>
js部分需要注意url为异步数据接口,done是渲染完表格之后的回调函数
table.render({ elem: '#data_grid' //,width: 900 //,height: 274 ,cols: [[ //标题栏 {field: 'id', title: 'ID', width: 80, sort: true} ,{field: 'username', title:'用户名',width: 100} //空列 ,{field: 'password', title: '密码', width: 120} ,{field: 'gender', title: '性别', width: 150} ,{field: 'nichen', title: '昵称', width: 150} ,{field: 'birthday', title: '出生年月', width: 120} ,{fixed: 'right', width: 215,align:'center', toolbar: '#barDemo'} ]] ,url:url ,skin: 'row' //表格风格 ,even: true ,page: true //是否显示分页 ,limits: [3,5,10] ,limit: 5 //每页默认显示的数量 ,done:function(res){ userPage.data = res.data; } //,loading: false //请求数据时，是否显示loading });
根据条件查询，表格异步刷新，where为附带参数
$('#sub_query_form').on('click',function () { var queryPo = page.formToJson($('#query_form').serialize()); var table = layui.table; table.reload('data_grid', { url: '/getUserList.action', page:{ curr:1 //从第一页开始 }, method:'post', where:{ queryStr:queryPo }, done:function (res) { userPage.data = res.data; } }); });
将x-www-form-urlencoded转化为json字符串
formToJson:function (data) { data=data.replace(/&/g,"",""); data=data.replace(/=/g,"":""); data="{""+data+""}"; return data; }
表格工具栏使用
1.首先在html里定义好按钮
<script type="text/html" id="barDemo"> <a class="layui-btn layui-btn-normal layui-btn-xs" lay-event="add">增加</a> <a class="layui-btn layui-btn-xs" lay-event="detail">查看</a> <a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a> <a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a> <!-- 这里同样支持 laytpl 语法，如： --> {{# if(d.auth > 2){ }} <a class="layui-btn layui-btn-xs" lay-event="check">审核</a> {{# } }} </script>
2.js内引用
layui.use('table', function(){ var table = layui.table; userPage.tab('/getUserList.action'); //监听工具条 table.on('tool(demo)', function(obj){ var data = obj.data; userPage.data = obj.data; if(obj.event === 'detail'){ layer.msg('ID：'+ data.id + ' 的查看操作'); } else if(obj.event === 'del'){ layer.confirm('真的要删除这条记录么',{icon: 3, title:'确定删除'}, function(index){ obj.del(); $.post('/doDelete.action?id='+data.id,function (res) { userPage.reload(res); }); layer.close(index); }); } else if(obj.event === 'add'){ layer.open({ title:'增加窗口', content:userPage.template, yes:function () { var user = page.formToJson($('#layer_form').serialize()); var data = 'user='+user; $.post('/doAdd.action',data,function (res) { userPage.reload(res); }); layer.closeAll(); } }) } else if(obj.event === 'edit'){ layer.open({ title:'编辑窗口', content:userPage.template, success:function () { $('input[name="id"]').val(userPage.data.id); $('input[name="username"]').val(userPage.data.username); $('input[name="password"]').val(userPage.data.password); $('input[name="gender"]').val(userPage.data.gender); $('input[name="nichen"]').val(userPage.data.nichen); $('input[name="birthday"]').val(userPage.data.birthday); }, yes: function(){ var mgUser = page.formToJson($('#layer_form').serialize()); var data = 'user='+mgUser; $.post('/doEdit.action',data,function (res) { userPage.reload(res); }); layer.closeAll(); } }) } }); });
二.服务端部分
Controller层需要接收以下参数，page,limit,要查询的条件，返回值根据layui文档给出的默认返回值
@RequestMapping("/getUserList") @ResponseBody public PageList<MgUser> getUserList(@RequestParam(required = false,defaultValue = "1") int page,@RequestParam(required = false,defaultValue = "5") int limit,@RequestParam(required = false) String queryStr){ QueryPo queryPo = null; if (!StringUtils.isEmpty(queryStr)){ //性别类型转换 queryPo = JSONObject.parseObject(queryStr,QueryPo.class); if ("1".equals(queryPo.getGender())){ queryPo.setGender("男"); } if ("2".equals(queryPo.getGender())){ queryPo.setGender("女"); } } PageList pageList = new PageList(); try { if (!StringUtils.isEmpty(queryPo)){ //中文字转码 if(!StringUtils.isEmpty(queryPo.getKeywords())){ queryPo.setKeywords(URLDecoder.decode(queryPo.getKeywords(),"utf-8")); } } List<MgUser> userList = userService.getUserList(page,limit,queryPo); //根据条件查询分页数据 pageList.setCode("0"); pageList.setMsg("ok"); pageList.setData(userList); int count = userService.countUserByExample(queryPo); pageList.setCount(count); } catch (UnsupportedEncodingException e) { e.printStackTrace(); pageList.setCode("-1"); pageList.setMsg("数据获取异常"); return pageList; } return pageList; }
Service层根据条件查询并分页
public List<MgUser> getUserList(int page , int limit, QueryPo queryPo) { MgUserExample userExample = new MgUserExample(); MgUserExample.Criteria criteria = userExample.createCriteria(); if(!StringUtils.isEmpty(queryPo)){ if (!StringUtils.isEmpty(queryPo.getGender())){ criteria.andGenderEqualTo(queryPo.getGender()); } if (!StringUtils.isEmpty(queryPo.getKeywords())){ criteria.andUsernameLike("%"+queryPo.getKeywords()+"%"); } } userExample.setStart((page-1)*limit); userExample.setLimit(limit); List<MgUser> mgUsers = userMapper.selectByExample(userExample); return mgUsers; }
注意由于mybatis逆向工程生成的Example没有limit和page，所以需要自己加上
private int start; private int limit; public int getStart() { return start; } public void setStart(int start) { this.start = start; } public int getLimit() { return limit; } public void setLimit(int limit) { this.limit = limit; }
接着修改Mybatis的mapper.xml,需要加上分页条件
<select id="selectByExample" resultMap="BaseResultMap" parameterType="com.wang.entity.MgUserExample" > select <if test="distinct" > distinct </if> <include refid="Base_Column_List" /> from mg_user <if test="_parameter != null" > <include refid="Example_Where_Clause" /> </if> <if test="orderByClause != null" > order by ${orderByClause} </if> <if test="start !=0 or limit!=0"> limit #{start},#{limit} </if> </select>
本文转自：https://www.cnblogs.com/wangxiayun/p/9145638.html
