<script type="text/javascript"> $(function(){ linkage.init('state','country','city'); linkage.init('state1','country1','city1'); }); </script> </head> <body > 出发地: <select id="state"></select> <select id="country"></select> <select id="city"></select> <br> 到达地: <select id="state1"></select> <select id="country1"></select> <select id="city1"></select> </body>
function linkage(){} $(function(){ //linkage.init("state","country","city"); }); linkage.init = function(levelOne, levelTwo, levelThree){ linkage.data = []; levelOne = "#" + levelOne; levelTwo = "#" + levelTwo; levelThree = "#" + levelThree; var html = ""; var url = "linkage.action";//访问地址 //JQuery访问数据 $.getJSON(url, function(data){ linkage.data = data; $(levelOne).html(linkage.getOptionHtmlByLevel(1));//洲区域信息 $(levelTwo).html(linkage.getOptionHtmlById($(levelOne).val()));//国家信息 $(levelThree).html(linkage.getOptionHtmlById($(levelTwo).val()));//城市信息 // 为下拉levelOne框绑定onchange事件 $(levelOne).change(function(){ $(levelTwo).html(linkage.getOptionHtmlById($(levelOne).val()));//国家信息 $(levelThree).html(linkage.getOptionHtmlById($(levelTwo).val()));//城市信息 }); // 为下拉levelTwo框绑定onchange事件 $(levelTwo).change(function(){ $(levelThree).html(linkage.getOptionHtmlById($(levelTwo).val()));//城市信息 }); }); }; /** * 获得下拉框的选项html * @param data * @return html */ linkage.getOptionHtml = function(data){ var html = ""; html = "<option value="+data.id+">" + data.locationName + "</option>"; return html; }; /** * 根据副ID查找数据 * @param subId * @return html */ linkage.getOptionHtmlById = function(subId){ var html = ""; for(i = 0 ; i < linkage.data.length ; i++){ if(linkage.data[i].subId == subId){ html += linkage.getOptionHtml(linkage.data[i]); } } return html; }; /** * 根据区域级别查找数据 * @param level * @return html */ linkage.getOptionHtmlByLevel = function(level){ var html = ""; for(i = 0 ; i < linkage.data.length ; i++){ if(linkage.data[i].locationLevel == level){ html += linkage.getOptionHtml(linkage.data[i]); } } return html; };
public void getAllLocationInfo(){ List<LocationBean> locationList = this.linkageService.findAllLocation(); HttpServletResponse response = (HttpServletResponse)ActionContext.getContext().get(ServletActionContext.HTTP_RESPONSE); HttpServletRequest request = (HttpServletRequest)ActionContext.getContext().get(ServletActionContext.HTTP_REQUEST); try { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); JSONArray json = JSONArray.fromObject(locationList); response.getWriter().write(json.toString()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
注意：此用到了JSON转换包
jar包：json-lib-0.4.jar,commons-beanutils.jar
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