参考自官方文档,需要引入jquery.js,jquery.dataTables.js,dataTables.bootstrap.js(可选),
由于时间紧,省略了很多,所以总结份简化版的仅供参考。
1、直接加载,这个比较简单,如下
jsp用了bootstrap的栅格,js如下
后台传个json就行了,由于这个破项目表名都很奇葩凑合看吧。
Listgxlist=new ArrayList (); String sql="select * from ODS10000060"; try { List
2、延迟加载
由于老项目用的struts1,造成前台form接收参数有问题,所以直接用servlet接收
前端jsp如1直接加载一样,js如下
function initDatatables(){ /*var columns = new Array(); $("#listTable thead th").each(function(index, element) { var fieldName=$(element).attr("fieldName"); if(fieldName.indexOf('.')>0)fieldName=fieldName.substring(2); columns.push({"data":fieldName}); }); if($('#listTable').length<=0) return; //-- 列定义 var columnDefs = new Array(); $("#listTable thead th").each(function(index, element) { if($(element).attr("fieldType")!='VARCHAR'){ columnDefs.push({ "orderable": true, "searchable" : false, "targets": index }); } });*/ $('#listTable').DataTable( { "processing": true,//处理中显示 "serverSide": true,//服务器处理 "sScrollY": 300, "sScrollX": "100%", "columns":[{"data":"ID"},{"data":"YEAR"},{"data":"REGION"},{"data":"GYZCZ"},{"data":"QYS"}], /*"columns":columns,*/ /*"columnDefs":columnDefs,*/ // "bInfo": false, // "bPaginate": false, // "bFilter":false,/servlet/ComplexInquireServlet // "bLengthChange": false, "ajax": { "url": urlContextPath+"/mst/DatatablesLazyLoadServlet?flag=details", "type": "POST", "data": function ( d ) { var queryForm = document.queryConditionForm; d['fieldCode'] = 'ID,YEAR,REGION,GYZCZ,QYS'; d['tableCode'] = 'ODS10000030'; //表名 } }, "oLanguage": { "search" : "在表格中搜索:", "show" : "显示", "sProcessing" : "处理中...", "sLengthMenu" : "显示 _MENU_ 项结果", "sZeroRecords" : "没有匹配结果", "sInfo" : "显示第 _START_ 至 _END_ 项结果,共 _TOTAL_ 项", "sInfoEmpty" : "显示第 0 至 0 项结果,共 0 项", "sInfoFiltered" : "(由 _MAX_ 项结果过滤)", "sInfoPostFix" : "", "sSearch" : "搜索:", "sUrl" : "", "sEmptyTable" : "表中数据为空", "sLoadingRecords" : "载入中...", "sInfoThousands" : ",", "oPaginate" : { "sFirst" : "首页", "sPrevious" : "上页", "sNext" : "下页", "sLast" : "末页" }, "oAria" : { "sSortAscending" : ": 以升序排列此列", "sSortDescending" : ": 以降序排列此列" } } } ); showPage(); } function showQueryTable(){ //建table $('#secondtid').remove(); $("#tid").append( "" + ""); //创建表头 /*$.ajax({ url : urlContextPath+'/mst/DatatablesLazyLoadServlet?flag=titles',// 跳转到 action data : { index : '' }, type : 'post', success : function(data) { var dataObj = eval(data); }, error : function() { alert("异常!"); } });*/ //填充数据 initDatatables(); }" + "
" + " id " + "年份 " + "地区 " + "工业总产值(万元) " + "企业数(家) " + "
注:这个已经是简化版的了,表头可以用另一个ajax传过来,这里省略直接写死了。
下面是后台部分
public class DatatablesLazyLoad extends HttpServlet{ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.process(request, response); } /** * datatables 延迟加载 数据加载,flag标注details表示注入数据,titles表示注入标题。 * @param request * @param response */ private void process(HttpServletRequest request, HttpServletResponse response) { ServletContext servletContext=request.getSession().getServletContext(); WebApplicationContext wac =WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext); DictionaryServiceImpl ds=(DictionaryServiceImpl)wac.getBean("oracledictionaryService"); String flag = request.getParameter("flag"); String tableCode = request.getParameter("tableCode"); String fieldCode = request.getParameter("fieldCode"); if(flag==null)return; if(flag.equals("titles")){ }else if(flag.equals("details")){ String draw = request.getParameter("draw"); String start = request.getParameter("start"); String length = request.getParameter("length"); StringBuilder sql = new StringBuilder("select "); List titles = this.getTitles(tableCode,fieldCode,ds); for(int i=0;i0) sql.deleteCharAt(sql.lastIndexOf(",")); sql.append(" from ").append(tableCode); sql.append(" where 1=1 "); String filterSql = getFilterSql(titles,request); Integer totalCount =ds.getSqlRecordCount("select count(*) from (" + sql.toString()+ ") tmp"); Integer filterCount = ds.getSqlRecordCount("select count(*) from (" + sql.toString()+filterSql+ ") tmp"); String[] strings = fieldCode.split(","); String orderSql = getOrderSql(strings,request); sql.append(filterSql); sql.append(orderSql); List
总结,做的比较急,也没好好整理下直接贴出来,因为也不难,肯定有地方写的不好,仅供参考。
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脚本之家。