需要用到的js
angular.js（用angular.min.js會(huì)導(dǎo)致分頁控件不顯示）
ui-bootstrap-tpls.min.js
angular-animate.js
需要用到的css
bootstrap.min.css
由于本項(xiàng)目使用了路由，所以講js以及css文件的應(yīng)用都放在一個(gè)主html，請同學(xué)們在html頁面中添加以上文件
在開始之前，我先簡單介紹下分頁的原理。
分頁的實(shí)質(zhì)其實(shí)就是一條sql語句，
比如查找第二頁，即第16到第30條數(shù)據(jù)
在MySQL中是select * from table limit 15,15 order by id desc
Sql server中是select * from (select top 15 * from (select top (30) * from table order by id desc) order by available asc) order by id desc Oracle是（oracle中的row從1開始）：select * from (select a.*,rownum from (select * from tablet order by id desc) a ) b where b.rownum between 16 and 30
一般情況下，查詢得到的數(shù)據(jù)采用倒序排序，這樣可以將用戶最新插入的數(shù)據(jù)放在最前面。
那么這三條sql語句中的這些數(shù)值是怎么計(jì)算得到的呢？它們就是根據(jù)1、CurrentPage 當(dāng)前在哪一頁 2、PageSize 每頁展示多少條 來的到的，因此后臺(tái)需要從前端獲取這兩個(gè)數(shù)值。又為了告訴用戶一共有多少頁，我們還要3、TotalSize 一共多少條 。
現(xiàn)在有了上面1 2 3值，我們就可以來進(jìn)行分頁了。在前端我們需要一個(gè)Table來幫我們展示數(shù)據(jù)，還需要一個(gè)小控件，讓用戶去選擇第幾頁，而bootstrap就為我們提供了這個(gè)小控件（uib-pagination），大大減輕了我們的工作量。在后端Jpa又為我們提供了分頁接口，我們只需要繼承JapRepository即可，零代碼量！
下面就重點(diǎn)看Table、uib-pagination以及JapRepository提供的接口的用法。
html頁面代碼：
<div data-ng-controller="QuestionCtrl" class="container" style="width: 1900px;"> <br> <table class="table table-bordered table-hover "> <thead> <tr> <th class="text-center"><input type="checkbox" data-ng-model="allChecked" data-ng-change="checkAll(allChecked)" /></th> <th class="text-center">序號(hào)</th> <th class="text-center">題目</th> <th class="text-center">A</th> <th class="text-center">B</th> <th class="text-center">C</th> <th class="text-center">D</th> <th class="text-center">答案</th> <th class="text-center">答題數(shù)</th> <th class="text-center">正確數(shù)</th> <th class="text-center">正確率</th> </tr> </thead> <tbody> <tr data-ng-repeat="item in items"> <td class="text-center"><input type="checkbox" data-ng-model="item.$checked" data-ng-changed="checkedChange(item.id,item.$checked)"/></td> <td class="text-center"><span data-ng-bind="$index+1"></span></td> <td class="text-center" data-ng-bind="item.test"></td> <td class="text-center" data-ng-bind="item.op1"></td> <td class="text-center" data-ng-bind="item.op2"></td> <td class="text-center" data-ng-bind="item.op3"></td> <td class="text-center" data-ng-bind="item.op4"></td> <td class="text-center" data-ng-bind="item.answer"></td> <td class="text-center" data-ng-bind="item.total"></td> <td class="text-center" data-ng-bind="item.totalCorrect"></td> <td class="text-center"> <span data-ng-if="item.total!=0" data-ng-bind="item.totalCorrect / item.total * 100 | number:2 "></span> <span data-ng-if="item.total==0" data-ng-bind="0"></span> %</td> </tr> </tbody> </table> <div class="text-right"> <button class="btn btn-defualt" style="float: left" data-ng-click="deleteItems()">刪除</button> <span style="color:#ff0000;"><uib-pagination total-items="TotalItems" ng-model="currentPage" items-per-page = "numPerPage" max-size="maxSize" class="pagination" first-text="首頁" previous-text="上一頁" next-text="下一頁" last-text="末頁" boundary-links="true" ng-change="pageChanged()" force-ellipses="false"></uib-pagination></span> </div> </div>
分頁是通過 uib-pagination 標(biāo)簽來實(shí)現(xiàn)的，用到標(biāo)簽屬性有：
total-items:表示總共有多少條記錄
items-per-page:每一頁顯示多少條記錄
max-size:決定用戶看到的頁數(shù)，即選擇頁面的按鈕，不理解的同學(xué)可以調(diào)整這個(gè)數(shù)值查看變化
ng-model:當(dāng)前所在頁面
以上4個(gè)屬性的值與js雙向綁定
boundary-link:顯示“首頁”、“末頁”按鈕
force-ellipses:當(dāng)值為true時(shí)，超過max-size的也會(huì)以省略號(hào)的形式展現(xiàn)
js代碼如下：
var app = angular.module("APP",['ui.bootstrap', 'ngAnimate']); app.controller('QuestionCtrl', function($scope, $uibModal, $http) { <span style="color:#ff0000;">$scope.currentPage = 1;//當(dāng)前頁 $scope.numPerPage = 15; $scope.maxSize = 5; $http({ url : '/getExamsByPage', method : 'post', params : { 'currentPage' : $scope.currentPage - 1, 'numPerPage' : $scope.numPerPage } }).success(function(response) { $scope.TotalItems = response.totalElements; $scope.items = response.content; }); $scope.pageChanged = function() { $http({ url : '/getExamsByPage', method : 'post', params : { 'currentPage' : $scope.currentPage - 1, 'numPerPage' : $scope.numPerPage } }).success(function(response) { $scope.TotalItems = response.totalElements; $scope.items = response.content; }); }</span> $scope.checkAll = function(checked) { angular.forEach($scope.items, function(item) { item.$checked = checked; }); }; $scope.deleteExam = function(id) { $http({ url : '/deleteexam', method : 'post', params : { 'id' : id, 'currentPage' : $scope.currentPage - 1, 'numPerPage' : $scope.numPerPage } }).success(function(response) { $scope.TotalItems = response.totalElements; $scope.items = response.content; }); } $scope.deleteItems = function() { var checkedlist = new Array(); angular.forEach($scope.items, function(item) { if (item.$checked == true) checkedlist.push(item.id); }); $http({ url : "/deleteexams", method : "post", params : { 'ids' : checkedlist, 'currentPage' : $scope.currentPage - 1, 'numPerPage' : $scope.numPerPage } }).success(function(response) { $scope.TotalItems = response.totalElements; $scope.items = response.content; }); }; }); 每次請求后臺(tái)需要將當(dāng)前頁以及每頁的數(shù)量發(fā)送到后臺(tái)。
前臺(tái)接受到的json數(shù)據(jù)是這樣的
{"content":[{"id":225,"test":"辦公自動(dòng)化是計(jì)算機(jī)的一項(xiàng)應(yīng)用，按計(jì)算機(jī)應(yīng)用分類，它屬于____。","op1":"數(shù)據(jù)處理","op2":"科學(xué)計(jì)算","op3":"實(shí)時(shí)控制","op4":"輔助設(shè)計(jì)","answer":"A","total":2,"totalCorrect":1},{"id":224,"test":"軟件由___和文檔兩部分組成。","op1":"數(shù)據(jù)","op2":"指令","op3":"程序","op4":"工具","answer":"C","total":2,"totalCorrect":1},{"id":223,"test":"為達(dá)到某一目的而編寫的計(jì)算機(jī)指令序列稱為____。","op1":"軟件","op2":"字符串","op3":"程序","op4":"命令","answer":"C","total":2,"totalCorrect":1},{"id":222,"test":"辦公自動(dòng)化是計(jì)算機(jī)的一項(xiàng)應(yīng)用，按計(jì)算機(jī)應(yīng)用分類，它屬于____。","op1":"數(shù)據(jù)處理","op2":"科學(xué)計(jì)算","op3":"實(shí)時(shí)控制","op4":"輔助設(shè)計(jì)","answer":"A","total":2,"totalCorrect":1},{"id":220,"test":"為達(dá)到某一目的而編寫的計(jì)算機(jī)指令序列稱為____。","op1":"軟件","op2":"字符串","op3":"程序","op4":"命令","answer":"C","total":2,"totalCorrect":1},{"id":219,"test":"辦公自動(dòng)化是計(jì)算機(jī)的一項(xiàng)應(yīng)用，按計(jì)算機(jī)應(yīng)用分類，它屬于____。","op1":"數(shù)據(jù)處理","op2":"科學(xué)計(jì)算","op3":"實(shí)時(shí)控制","op4":"輔助設(shè)計(jì)","answer":"A","total":2,"totalCorrect":1},{"id":218,"test":"軟件由___和文檔兩部分組成。","op1":"數(shù)據(jù)","op2":"指令","op3":"程序","op4":"工具","answer":"C","total":2,"totalCorrect":1},{"id":217,"test":"為達(dá)到某一目的而編寫的計(jì)算機(jī)指令序列稱為____。","op1":"軟件","op2":"字符串","op3":"程序","op4":"命令","answer":"C","total":2,"totalCorrect":1},{"id":216,"test":"辦公自動(dòng)化是計(jì)算機(jī)的一項(xiàng)應(yīng)用，按計(jì)算機(jī)應(yīng)用分類，它屬于____。","op1":"數(shù)據(jù)處理","op2":"科學(xué)計(jì)算","op3":"實(shí)時(shí)控制","op4":"輔助設(shè)計(jì)","answer":"A","total":2,"totalCorrect":1},{"id":215,"test":"軟件由___和文檔兩部分組成。","op1":"數(shù)據(jù)","op2":"指令","op3":"程序","op4":"工具","answer":"C","total":2,"totalCorrect":1}],"last":false,"totalPages":9,"totalElements":86,"number":0,"size":10,"sort":[{"direction":"DESC","property":"id","ignoreCase":false,"nullHandling":"NATIVE","ascending":false}],"numberOfElements":10,"first":true}后臺(tái)controller代碼
@RequestMapping(value = "/getExamsByPage") @ResponseBody public Page<Exam> getExamsByPage(@RequestParam(value = "currentPage",defaultValue = "0") Integer page, @RequestParam(value = "numPerPage",defaultValue = "10") Integer pageSize) { Sort sort = new Sort(Direction.DESC, "id");//設(shè)置排序方式 Pageable pageable = new PageRequest(page, pageSize, sort);//構(gòu)建Pageable對象，改分頁查詢是通過jpa的PagingAndSortingRepository接口完成的 Page<Exam> Exams = examrepository.findAll(pageable); return Exams; } repository代碼：
@Transactional public interface ExamRepository extends JpaRepository<Exam, Integer> { } contoller中調(diào)用的findAll方法是PagingAndSortingRepository實(shí)現(xiàn)的，但是JpaRepository繼承自PagingAndSortingRepository，因此也有findAll方法，不明白的同學(xué)可以去查閱改接口的資料。
這樣就完成了分頁顯示，圖片如下
總結(jié)
以上所述是小編給大家介紹的Angular+Bootstrap+Spring Boot實(shí)現(xiàn)分頁功能實(shí)例代碼，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對武林網(wǎng)網(wǎng)站的支持！
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