bootstrap-select实现下拉多选搜索框

开头引入文件：

bootstrap-select.css
bootstrap-select.min.css
bootstrap-select.js
bootstrap-select.min.js

<div class="form-group">
    <label class="col-sm-3 control-label">知识点标签：</label>
		<div class="col-sm-8">
			<select class="selectpicker form-control" multiple title="请选择" required>
				<c:forEach items="${knowList }" var="know">
					<option value="${know.id }">${know.name }</option>
				</c:forEach>
			</select>
		</div>
</div>

var row = getSelectedRow();
var arr = new Array();
arr = row.knowId.split(",");
$('.selectpicker').selectpicker({
    liveSearch:true,
    size:5
});
$('.selectpicker').selectpicker('val',arr);
$('.selectpicker').selectpicker('refresh');