引入select2.min.js和select2.css
<link rel="styleSheet" href="./plugin/select2/css/select2.css" type="text/css"> <script src="./plugin/select2/js/select2.min.js"></script>
html部分：
<!DOCTYPE html> <html> <head> <title></title> <style type="text/css"> </style> </head> <body> <div class="col-md-10" style="margin-top: 20px;"> <div style="width:110%;text-align:left;color: gray;border-bottom: 2px solid #df5f4a;"><p style="font-weight: bold; font-size: 14px;">select2示例页面</p></div> <br> </div> <div class="page-title col-md-10" style="z-index:-1;margin-top: 5px;" placeholder> <span>单选</span> </div> <div class="col-md-10"> <select style="width:70%;overflow:visible;" class="js-data-example-ajax" placeholder="Search W3School"> </select> </div> <div class="page-title col-md-10" style="z-index:-1"> <span>多选</span> </div> <div class="col-md-10"> <select style="width:70%;overflow:visible;" class="js-data-example-ajax" multiple> </select> </div> </body> <script type="text/javascript"> </script> </html>
核心代码：
$("select.js-data-example-ajax").each(
function() {
var $this = $(this);
$this.select2({
placeholder: "请输入关键字",
language : "zh-CN",// 指定语言为中文，国际化才起效
allowClear: true,
ajax : {
url :url,
dataType : 'json',
delay : 250,// 延迟显示
data : function(params) {
return {
id : params.term, // 搜索框内输入的内容，传递到Java后端的parameter为username
page : params.page,// 第几页，分页哦
rows : 10// 每页显示多少行
};
},
beforeSend: function(request) {
request.setRequestHeader("Authorization","Arch6WithCloud "+localStorage.getItem("JSESSIONID"));
},
// 分页
processResults : function(data, params) {
params.page = params.page || 1;
return {
results : data.data,// 后台返回的数据集
pagination : {
more : params.page < data.total// 总页数为10，那么1-9页的时候都可以下拉刷新
}
};
},
cache : false
},
escapeMarkup : function(markup) {
return markup;
}, // let our custom formatter work
minimumInputLength : 0,// 最少输入一个字符才开始检索
templateResult : function(repo) {// 显示的结果集格式，这里需要自己写css样式，可参照demo
// 正在检索
if (repo.loading)
return repo.text;
var markup = "<table class='select2-result-repository clearfix'>"
+ "<tr>"
+ "<td style='word-break:break-all;' width='300px'>" + repo.code + "</td>"
+ "<td width='400px' align='center' >" + repo.value + "</td>"
+ "</tr>"
+ "</table>"
;
return markup;
},
templateSelection : function(repo) {
if(repo.code==undefined||repo.value==undefined){
return "请输入关键字";
}else{
return repo.code||repo.value;
}
}// 列表中选择某一项后显示到文本框的内容
});
});
controller:
@RestController @RequestMapping("/sdd/code") public class StuApi extends BaseApi { @Autowired StuService userService; @RequestMapping(value = "/queryList") @ResponseBody public ApiResponse queryList(HttpServletRequest request) throws IOException { String uid=request.getParameter("id"); List<SddCode> users = new ArrayList<SddCode>(); users = sddCodeService.queryList(uid); ApiResponse response = new ApiResponse(); response.setData(users); return response; } }