微信小程序价格_基于bootstrap完成多个下拉框同时

本文实例为大家分享了bootstrap实现下拉框搜索展示的具体代码，供大家参考，具体内容如下

1.第一个下拉框代码

 div 
 !--快速查询-- 
 div 
 span i /i /span 
 select data-filter-type="2" name="copyfrom" data-validate="notempty" data-field="name" data-placeholder="搜索数据资源" 
 option value="" 请选择数据资源 /option 
 optgroup label="UNESCO二类中心" 
 #list data.copyfromList as entity 
 #if (entity.type entity.type == '1') 
 option value="${entity.alias!}" #if (param.copyfrom param.copyfrom == entity.alias) selected /#if ${entity.alias!} /option 
 /#if 
 /#list 
 /optgroup 
 optgroup label="科技动态与进展" 
 #list data.copyfromList as entity 
 #if (entity.type entity.type == '7') 
 option value="${entity.alias!}" #if (param.copyfrom param.copyfrom == entity.alias) selected /#if ${entity.alias!} /option 
 /#if 
 /#list 
 /optgroup 
 optgroup label="其他" 
 #list data.copyfromList as entity 
 #if (entity.type entity.type == '8') 
 option value="${entity.alias!}" #if (param.copyfrom param.copyfrom == entity.alias) selected /#if ${entity.alias!} /option 
 /#if 
 /#list 
 /optgroup 
 /select 
 /div 
 /div 

2.第二个下拉框代码

 div 
 !--快速查询-- 
 div 
 span i /i /span 
 select data-filter-type="2" name="cid" data-validate="notempty" data-field="name" data-placeholder="搜索栏目名称" 
 option value="" /option 
 #list data.categories as entity 
 option value="${entity.id}" #if (param.cid param.cid == entity.id) selected /#if ${entity.id} - ${entity.name} /option 
 /#list 
 /select 
 /div 
 /div 

3.后台js代码（url 参数整理）

bindEvents:function(){
 var self = this, dom = self.element;
 $('select[name="copyfrom"]', dom).change(function(event){
 self.params.copyfrom = $(this).val();
 var url = self.formatParams(self.params);
 window.location.href = "cekasp_article.htm" + url;
 $('select[name="cid"]', dom).change(function(event){
 self.params.cid = $(this).val();
 var url = self.formatParams(self.params);
 window.location.href = "cekasp_article.htm" + url;
 formatParams:function(params){
 var self = this;
 var url = "";
 for(var param in params){
 if(params[param]){
 url += param + "=" + params[param] + " 
 if(url.length 0){
 url = " " + url.substring(0,url.length-1);
 return url;

 4.后台java部分代码（接收参数，然后过滤器根据参数得到想要的结果）

 String categoryId = request.optString("cid");
 if (!ValidateUtil.isNull(categoryId)) {
 // 加载栏目信息
 JSONObject jsonCategory = toJSONObject(adminService.loadById(CekaspCategory.class, categoryId));
 response.put("category", jsonCategory);
 param.addFilter("id", FilterType.IN, articleIdList, 1);
 String copyfrom = request.optString("copyfrom");
 if (!ValidateUtil.isNull(copyfrom)) {
 param.addFilter("copyfrom", FilterType.EQUALS, copyfrom);
 List CekaspArticle articleList = adminService.list(CekaspArticle.class,param);

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持凡科。