Vue.js结合后端实现分页查询功能详解

环境准备与资源引入

<script src="~/js/vue2.2.4.js"></script>

<ul class="pagination" id="pagination1"></ul>

<link href="~/css/page.css" rel="stylesheet" />
<script src="~/js/jqPaginator.js"></script>

后端分页接口实现

 public JsonResult GrtUserData(int page,int rows)
 {
 //top分页法 row_number分页
 TextEntities tes = new TextEntities();
 //分页查询
 List<Users> ulist = tes.Users.OrderBy(a=>a.Id).Skip((page-1)*rows).Take(rows).ToList();
 int allcount = tes.Users.Count(); //总页数
 int allpage = allcount / rows;
 if (allcount % rows !=0)
 
 allpage = allpage + 1;
 DTO_Page dp = new DTO_Page();
 dp.data = ulist;
 dp.allpage = allpage;
 return Json(dp, JsonRequestBehavior.AllowGet);
 }

public class DTO_Page
 {
 public int rows { get; set; }
 public int allpage { get; set; }
 public List<Users> data { get; set; }
 }

 public JsonResult GetAllpage(int rows)
 {
 TextEntities tes = new TextEntities();
 int allcount = tes.Users.Count(); //总页数
 int allpage = allcount / rows;
 if (allcount % rows != 0)
 allpage = allpage + 1;
 return Json(allpage);
 
 }

前端交互与动态分页逻辑

<script>
 //封装一个查询后台的方法
 var getdata = function (page, rows,vm) {
 $.ajax({
 url: '/home/GrtUserData',
 type: 'get',
 data: { page: page, rows: rows },
 success: function (dto_page) {
 vm.mydata = dto_page.data;
 $.jqPaginator('#pagination1', {
 totalPages: dto_page.allpage,
 visiblePages: 5,
 currentPage: page,
 onPageChange: function (num, type) {
 //怎么把第一次忽略
 if (type != "init") {
 //更新查询后的页面
 getdata(num, 5,vm);
 }
 }
 });
 }
 });
 }

 $(function () {
 //给更新div添加数据
 var update_vm = new Vue({
 el: "#updatecontent",
 data: {
 userinfo: {}
 }
 })
 
 //实例化 vue.js (用来给表格提供数据的) 只实例化一次
 var vm = new Vue({
 el: '#content',
 data: {
 mydata: []
 },
 methods: {
 butdelete: function (_id) //删除
 {
 $.post('/home/BatchDelete', { ids: _id }, function (result) {
 if (result > 0) {
 location.href = "/home/UserMan";
 }
 else {
 alert("删除失败");
 }
 });
 },
 butupdate: function (item, event) //更新
 {
 //使用jquery打开编辑状态
 //$(event.target).parent().parent().find("td:gt(0):lt(4)").each(function (index,item) {
 // $(item).html("<input type='text' style='width:50px' value=" + $(item).html() + ">");
 //});

 //复制对象
 // var databack = $.extend({},item);
 update_vm.$data.userinfo = item;
 layer.open({
 type: 1,
 area: ["300px", "230px"],
 title: "更新",
 content: $("#updatecontent"),
 btn: ["保存"],
 yes: function (index) {
 $.post('/home/Update', update_vm.$data.userinfo, function (result) {
 //可以把vue.js数据替换把更新后到页面
 // vm.$data.mydata.splice(1, 1, update_vm.$data.userinfo);
 });
 },
 cancel: function () //点击关闭按钮
 {
 // alert(databack.UserName);
 // console.log(databack);
 }
 });
 }
 }
 }); 

 //默认第一个请求
 getdata(2,5,vm);
 $("#deletebut").click(function () {
 //存放需要批量删除的id
 var ids = "";
 $(".mytable input[type='checkbox']:checked").each(function (index, item) {
 ids += $(item).val() + ",";
 });
 $.post('/home/BatchDelete', { ids: ids }, function (result) {
 if (result > 0) {
 location.href = "/home/UserMan";
 }
 else {
 alert("删除失败");
 }
 });
 });
 });
</script>