其中cache.do?getList 返回一个简单的bean json串
include.jsp
<scriptsrc="${webPath}/plug-in/common/js/jquery-1.8.3.min.js"></script><link rel="stylesheet" type="text/css" href="${webPath}/plug-in/select2/css/select2.min.css" /><link rel="stylesheet" type="text/css" href="${webPath}/plug-in/select2/css/select2-bootstrap.min.css" /><script src="${webPath}/plug-in/select2/js/select2.min.js"></script><script src="${webPath}/plug-in/select2/js/i18n/zh-CN.js"></script><script src="${webPath}/plug-in/select2/js/select2tree.js"></script>=============<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%><!DOCTYPE HTML><html><head><title>select2示例</title><%@ include file="/plug-in/common/include.jsp"%><script>$(function() {$(".select2").select2({language : "zh-CN",placeholder : {id : '-1', // the value of the optiontext : '请选择重要程度...'},});//placeholder可能与jquery1.83不兼容$("#sajax").select2({language : "zh-CN",allowClear : true,ajax : {url : $webPath + 'cache.do?getList',dataType : 'json',delay : 250,data : function(params) {var query = {search : params.term,page : params.page || 1,rows : 30,key : 'AGRITECH_TYPE',bNeedAll :false}// Query paramters will be ?search=[term]&page=[page]return query;},processResults : function(data, params) {params.page = params.page || 1;var rows = data;for ( var i in rows) {var row = rows[i];row.id = row.itemCode;row.text = row.itemValue;}return {results : rows,pagination : {more : (params.page * 30) < data.total}};},cache : true},escapeMarkup : function(markup) {return markup;},templateResult : formatRepo,templateSelection : formatRepoSelection});$("#stree").select2tree();var data = [ {id : 0,text : 'enhancement',other : "userdata"}, {id : 1,text : 'bug'}, {id : 2,text : 'duplicate'}, {id : 3,text : 'invalid'}, {id : 4,text : 'wontfix'} ];$(".js-example-data-array").select2({data : data});$(".js-example-data-array-selected").select2({data : data});});function formatRepo(repo) {return repo.text}function formatRepoSelection(repo) {return repo.text}function getSelect() {var res = $("#Importance").select2("data")[0]; //单选var reslist = $("#multiple").select2("data"); //多选var sajax = $("#sajax").select2("data")[0]; if (res == undefined) {alert("你没有选中Importance");} else {alert("Importance:" + res.id + res.text);}if (reslist.length) {alert("multiple:" + reslist[0].id + reslist[0].text);} else {alert("你没选中multiple");}if (sajax == undefined) {alert("你没有选中sajax");} else {alert("sajax:" + sajax.id + sajax.text);}}function clearSelect() {//清空选择$("#Importance").val(null).trigger("change");$("#multiple").val(null).trigger("change");//disabled$(".js-example-data-array").prop("disabled", true);//不可用}</script></head><body><div><select id="Importance" class="select2"style="width: 200px;margin-left: 10%;float:left;"><option></option><option value="1">非常重要</option><option value="2">重要</option><option value="3">一般</option></select> <select id="multiple" class="select2" multiple="multiple"style="width: 200px;margin-left: 10%;float:left;"><option value="A">非常重要</option><option value="B">重要</option><option value="C">一般</option></select> <select id="sajax" style="width: 200px;margin-left: 10%;float:left;"></select> <select id="stree" multiple="multiple"style="width: 300px;margin-left: 10%;float:right;"><option value="12" parent="1">12</option><option value="1" disabled="disabled">1</option><option value="13" parent="1">13</option><option value="11" parent="1">11</option><option value="131" parent="13">131</option><option value="132" parent="13">132</option><option value="2" disabled="disabled">2</option><option value="21" parent="2">21</option><option value="32" parent="3">32</option><option value="33" parent="3">33</option><option value="3" disabled="disabled">3</option><option value="31" parent="3">31</option><option value="22" parent="2">22</option><option value="133" parent="13">133</option><option value="23" parent="2">23</option></select></div><select class="js-example-data-array"></select><select class="js-example-data-array-selected"><option value="2" selected="selected">duplicate</option></select><input type="button" onclick="getSelect()" value="取值"><input type="button" onclick="clearSelect()" value="清除"></body></html>
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