json数据实现二级联动的实例代码
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2022-05-07 18:26:02
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zaiqing_shenhe.jsp
<head> <link href="static/bootstrap-3.3.5-dist/css/bootstrap.css" rel="stylesheet" /> <link href="static/bootstrap-table/bootstrap-table.css" rel="stylesheet" /> <link rel="stylesheet" href="static/bootstrap-select/bootstrap-select.min.css" /> </head> <body> <div class="panel-body" style="padding-bottom:0px;"> <div class="panel panel-default" style="margin:10px;"> <div class="panel-heading"> <span>查询条件</span> </div> <input id="query_dataSource" type="hidden" value="${dataSource}"> <input name="id" type="hidden" value="${id}"> <div class="panel-body"> <!-- form表单 --> <form class="form-horizontal" id="formSearch"> <div class="form-group" style="margin:0px"> <!-- 一级选择框 --> <div class="col-sm-2" style="width:110px;"> <label class="control-label" for="txt_search_departmentname">数据来源</label> <select class="form-control" id="dataSource"> <option code="" value="" selected="selected">全部</option> <c:forEach var="dataSource" items="${dataSources }"> <c:choose> <c:when test="${obj.dataSources == dataSource.dataSourceName}"> <option code="${dataSource.dataSourceCode}" value="${dataSource.dataSourceName }" selected="selected">${dataSource.dataSourceName}</option> </c:when> <c:otherwise> <option code="${dataSource.dataSourceCode}" value="${dataSource.dataSourceName }">${dataSource.dataSourceName}</option> </c:otherwise> </c:choose> </c:forEach> </select> </div> <!-- 二级选择框 --> <div class="col-sm-2" style="width:110px;"> <label class="control-label" for="txt_search_departmentname">信息来源</label> <select class="form-control" id="infoSource"> <option value="" selected="selected">全部</option> </select> </div> <div class="col-sm-1" style="text-align:left;"> <button class="btn btn-primary" id="btn_query" type="button" style="margin-top:29px">查询</button> </div> </div> </form> </div> </div> <!-- 查询结果的列表显示位置 --> <div class=table-responsive"> <table id="Table_queryList" class="table text-nowrap"></table> </div> </div> <script src="static/js/jquery-1.10.1.min.js"></script> <script src="static/bootstrap-3.3.5-dist/js/bootstrap.js"></script> <script src="static/bootstrap-table/bootstrap-table.js"></script> <script src="static/bootstrap-table/locale/bootstrap-table-zh-CN.js"></script> <script src="static/bootstrap-select/bootstrap-select.js"></script> <script src="static/jsUtil/jquery.form.js"></script> <script src="static/js/zaiqing_shenhe.js"></script> </body>
zaiqing_shenhe.js
$(function () { //二级联动 绑定事件 :数据来源》信息来源 $("#dataSource").change(function(){ var infoSourceArr=[ { "全部":[ "灾害大典", "灾情普查", "灾情直报", "网络媒体", "微博", "墨迹天气", "河北天气", "其他" ] }, { "互联网":[ "网络媒体", "微博", "墨迹天气", "河北天气", "其他" ] }, { "气象部门":[ "灾害大典", "灾情普查", "灾情直报", "其他" ] } ] var dataSourceVal=$("#dataSource").find("option:selected").val();//一级下拉框,选中值 dataSourceVal = dataSourceVal.replace( /^\s+|\s+$/g, "" );//去除字符中 空格 var infoSource=$("#infoSource"); for(var i in infoSourceArr){ for(var j in infoSourceArr[i]){ j = j.replace( /^\s+|\s+$/g, "" ); if(dataSourceVal==j){ var infoSourceSecondArrVal=infoSourceArr[i][j]; } } } document.getElementById("infoSource").options.length = 1; //清空select标签中option选项=0,只留一项=1 //根据一级下拉框选中值,加载相应的二级下拉框选项 for (var k in infoSourceSecondArrVal){//(var k=0;k<infoSourceSecondArrVal.length;k++)则浏览器调试出错:Uncaught TypeError: Cannot read property 'length' of undefined infoSource.append('<option value="'+infoSourceSecondArrVal[k]+'" >'+infoSourceSecondArrVal[k]+'</option>') } }); }); //查询》列表显示 var TableInit = function () { ... //初始化Table oTableInit.Init = function (pageNumber) { ... //得到查询的参数 oTableInit.queryParams = function (params) { var temp = { //这里的键的名字和控制器Controller里的变量名必须一致 ... dataSource: $("#dataSource").find("option:selected").val(), infoSource: $("#infoSource").find("option:selected").val(), ... }; ... }; $('#Table_queryList').bootstrapTable('destroy').bootstrapTable({ ... }) }; ... };
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