datatable显示数据时，当我在最后一页只有一条数据时删除它，想让它跳转到前一页怎么处理。或者一页有10条数据，添加一条数据之后跳转到第二页怎么处理。比如
一共有31条数据，那么分页为4页，第四页只有一条数据，当我把它删除时，则程序应该
跳到第三页显示，但是其仍然停留在没有第四页的那儿，这个怎么处理图片说明](https://img-ask.csdn.net/upload/201801/19/1516349260_525665.png)
function getData(){
var id = 0;
var cycle=$("#cycleStatus").val();
var flag = $("#flag").val();
var table = $('#userList').DataTable({
"destroy": true, //可以重新初始化，用于搜索
"lengthChange": false,
"ordering": false, //排序
"info": true, //
"autoWidth": true, //宽度自动
"paging": true, //分页
"searching": false, //全局搜索关闭
"processing": true, //开启显示‘正在加载.../processing’
"serverSide":true,
//true代表后台处理分页，false代表前台处理分页
"ajax" : {
url:"${pageContext.request.contextPath}/listAll",
type:"get",
data:{
"sendcycle":cycle,
"keyWord":flag
}
},
//参数显示
"columns": [
{"data": null,'sClass':"text-center","width":"6%"},
/*{"data": "id", 'sClass': "text-center","width":"6%"},*/
{"data": "sourcename", 'sClass': "text-center","width":"8%",},
{"data": "purposename", 'sClass': "text-center","width":"8%",},
{"data": "needname", 'sClass': "text-center","width":"8%"},
{"data": "needman", 'sClass': "text-center","width":"8%",},
{"data": "sendcycle", 'sClass': "text-center","width":"8%",
"render": function ( data, type, full, meta ) {
var str="";
if(data==0){
str="天";
}
if(data ==1){
str ="月";
}
if(data ==2){
str="年";
}
return str;
}
},
{"data": "lasttime", 'sClass': "text-center","width":"8%",
"render": function ( data, type, full, meta ) {
var str="";
if(full.sendcycle==0){
str=data+"天";
}
if(full.sendcycle==1){
str=data+"月";
}
if(full.sendcycle==2){
str=data+"年";
}
return str;
}
},
{"data": "createtime", 'sClass': "text-center","width":"18%",},
{"data": "createman", 'sClass': "text-center","width":"8%",},
{"data":"id" , 'sClass': "text-center","width":"16%",
"render": function (data, type, full, meta ) {
var str = "";
<shiro:hasPermission name="update">
str += "<font color='blue' data-toggle='modal' data-target='#accept' onclick=updateUserId(" + data +");>[更新]</font> ";
</shiro:hasPermission>
<shiro:hasPermission name="delete">
str += "<font color='blue' data-toggle='modal' data-target='#accept' onclick=deleteUserId(" + data +");>[删除]</font> ";
</shiro:hasPermission>
/*下发地市*/
str += "<font color='blue' data-toggle='modal' data-target='#accept' onclick=sendAreaId(" + data +");>[下发地市]</font> ";
/*var time = full.createtime.split("-");*/
/*时间戳*/
var time =Date.parse(new Date(full.createtime));
var now =Date.parse(new Date());
if(full.sendcycle==0){
var newDate=new Date();
var day=full.lasttime;
/*过期时间*/
newDate.setTime(time+1000*3600*24*day);
var date2=formatDate(newDate);
var date2Stamp=Date.parse(new Date(date2));
if(date2Stamp<now){
return str+="<font color='red' data-toggle='modal' data-target='#accept';>[已过期]</font> ";
}else{
return str+="<font color='green' data-toggle='modal' data-target='#accept';>[未过期]</font> ";
}
}
if(full.sendcycle==1){
var newDate=new Date(full.createtime);
var month=full.lasttime;
/*不加会直接1+5=15*/
newDate.setMonth(Number(newDate.getMonth())+Number(month));
var date2=formatDate(newDate);
var date2Stamp=Date.parse(new Date(date2));
if(date2Stamp<now){
return str+="<font color='red' data-toggle='modal' data-target='#accept';>[已过期]</font> ";
}else{
return str+="<font color='green' data-toggle='modal' data-target='#accept';>[未过期]</font> ";
}
}
if(full.sendcycle==2){
var newDate=new Date(full.createtime);
var year=full.lasttime;
newDate.setFullYear(Number(newDate.getFullYear())+Number(year));
var date2=formatDate(newDate);
var date2Stamp=Date.parse(new Date(date2));
if(date2Stamp<now){
return str+="<font color='red' data-toggle='modal' data-target='#accept';>[已过期]</font> ";
}else{
return str+="<font color='green' data-toggle='modal' data-target='#accept';>[未过期]</font> ";
}
}
return str;
}
}
],
/*"columnDefs": [{
"searchable": false,
"orderable": false,
"targets": 0
}],
"order": [[1, 'asc']],*/
/*设置操作之后仍在当前页*/
bStateSave:true,
//是否开启主题
"bJQueryUI": true,
"oLanguage": { // 语言设置
"sLengthMenu": "每页显示 _MENU_ 条记录",
"sZeroRecords": "抱歉， 没有找到",
"sInfo": "从 _START_ 到 _END_ /共 _TOTAL_ 条数据",
"sInfoEmpty": "没有数据",
"sInfoFiltered": "(从 _MAX_ 条数据中检索)",
"sZeroRecords": "没有检索到数据",
"sSearch": "检索:",
"oPaginate": {
"sFirst": "首页",
"sPrevious": "前一页",
"sNext": "后一页",
"sLast": "尾页"
}
}
});
/*设置id自增长1*/
table.on('draw.dt',function() {
table.column(0, {
search: 'applied',
order: 'applied'
}).nodes().each(function(cell, i) {
//i 从0开始，所以这里先加1
i = i+1;
//服务器模式下获取分页信息，使用 DT 提供的 API 直接获取分页信息
var page = table.page.info();
//当前第几页，从0开始
var pageno = page.page;
//每页数据
var length = page.length;
//行号等于 页数*每页数据长度+行号
var columnIndex = (i+pageno*length);
cell.innerHTML = columnIndex;
});
});
/*start = $("#targetTable").dataTable().fnSettings()._iDisplayStart;
total = $("#targetTable").dataTable().fnSettings().fnRecordsDisplay();
window.location.reload();
if ((total - start) == 1) {
if (start > 0) {
$("#sorting-advanced").dataTable().fnPageChange('previous', true);
}
}*/
}
