Angular分页指令, 简单配置即可使用

摘要：指令模板显示第到第条记录总共条记录每页显示条记录指令列表数据接口请求参数请求对象数据事件名外部调用分页查询的事件监听事件服务配置参数加载数据改变页大小下一页上一页加载指定页

page.html

    

        

            
            显示第 {{(conf.currentPage-1) * conf.pageSize + 1}} 到第 {{conf.currentPage == conf.totalPage ? conf.total : conf.currentPage * conf.pageSize }} 条记录 , 总共 {{conf.total}} 条记录
            
            
                , 每页显示
                
                    
                        {{conf.pageSize}}
                        
                    
                    

                        

                            
                        
                    
                
                条记录
            
        
    
        

            

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    app.directive("pagination", ["$http", "$q", function ($http, $q) {
            return {
                restrict: "E",
                templateUrl: "./modules/business/page.html",
                replace: true,
                scope: {
                    list: "=", //列表数据
                    url: "@", //接口url
                    method: "@", //get or post
                    requestParam: "=", //请求参数
                    requestData: "=", //请求对象数据
                    event: "@" //事件名, 外部调用分页查询的事件
                },
                link: function (scope, element) {
                    //监听事件
                    scope.$on(scope.event, function (event, data) {
                        console.log(scope.event, data);
                        scope.loadData();
                    });
    
                    //ajax服务
                    var AjaxService = {
                        get: function (url, params) {
                            var defered = $q.defer();
                            $http({
                                method: "GET",
                                url: url,
                                params: params
                            })
                                .success(function (data) {
                                    defered.resolve(data);
                                })
                                .error(function (err) {
                                    defered.reject(err);
                                });
                            return defered.promise;
                        },
                        post: function (url, params, data) {
                            var defered = $q.defer();
                            $http({
                                method: "POST",
                                url: url,
                                params: params,
                                data: data
                            })
                                .success(function (data) {
                                    defered.resolve(data);
                                })
                                .error(function (err) {
                                    defered.reject(err);
                                });
                            return defered.promise;
                        }
                    };
    
                    //配置参数
                    scope.conf = {
                        currentPage: 1,
                        totalPage: 1,
                        endPage: 1,
                        pageSize: 15,
                        pages: [],
                        total: 0,
                        pageSizeList: [10, 15, 20, 25, 30, 35, 40, 45, 50]
                    };
    
                    //加载数据
                    scope.loadData = function () {
                        scope.requestParam = scope.requestParam instanceof Object && scope.requestParam || {};
                        scope.requestData = scope.requestData instanceof Object && scope.requestData || {};
                        scope.requestParam.page = scope.conf.currentPage;
                        scope.requestParam.pageSize = scope.conf.pageSize;
    
                        var promise = null;
                        if (scope.method == "GET") promise = AjaxService.get(scope.url, scope.requestParam);
                        else if (scope.method == "POST") promise = AjaxService.post(scope.url, scope.requestParam, scope.requestData);
                        promise.then(function (resp) {
                            if (resp && resp.code == 0) {
                                if (resp.result && resp.result instanceof Array) scope.list = resp.result;
                                else scope.list = [];
                                if (resp.total && typeof(resp.total) == "number") scope.conf.total = resp.total;
                                else scope.conf.total = 0;
                            }
                            scope.calcPages();
                        });
                    };
    
                    //改变页大小
                    scope.changePageSize = function (n) {
                        scope.conf.pageSize = n;
                        scope.conf.currentPage = 1;
                        scope.loadData();
                    };
    
                    //下一页
                    scope.next = function () {
                        if (scope.conf.currentPage < scope.conf.totalPage) {
                            scope.conf.currentPage++;
                            scope.loadData();
                        }
                    };
    
                    //上一页
                    scope.prev = function () {
                        if (scope.conf.currentPage > 1) {
                            scope.conf.currentPage--;
                            scope.loadData();
                        }
                    };
    
                    //加载指定页
                    scope.loadPage = function (page) {
                        if (scope.conf.currentPage != page) {
                            scope.conf.currentPage = page;
                            scope.loadData();
                        }
                    };
    
                    //查询
                    scope.query = function () {
                        scope.conf.currentPage = 1;
                        scope.loadData();
                    };
    
                    //计算页数
                    scope.calcPages = function () {
                        //计算总页数
                        scope.conf.totalPage = Math.ceil(scope.conf.total / scope.conf.pageSize);
                        //生成快捷页码
                        if (scope.conf.currentPage > 1 && scope.conf.currentPage < scope.conf.totalPage) {
                            scope.conf.pages = [
                                scope.conf.currentPage - 1,
                                scope.conf.currentPage,
                                scope.conf.currentPage + 1
                            ];
                        } else if (scope.conf.currentPage == 1 && scope.conf.totalPage > 1) {
                            scope.conf.pages = [
                                scope.conf.currentPage,
                                scope.conf.currentPage + 1
                            ];
                        } else if (scope.conf.currentPage == scope.conf.totalPage && scope.conf.totalPage > 1) {
                            scope.conf.pages = [
                                scope.conf.currentPage - 1,
                                scope.conf.currentPage
                            ];
                        }
                    };
    
                    //指令加载完后立即查询
                    scope.query();
                }
            };
        }]);
    

为了代码集中一点, 我把ajaxservice定义在了内部. 
指令基本包含分页所需功能,且不需修改, 下次就可以直接引用.

index.html

示例代码中, list参数是双向绑定的列表数据, businesses就是页面table绑定的ng-repeat循环的列表集合, url是后台接口, event是事件名, method是接口方法,GET or POST, request-param就是请求参数,request-data就是请求体.

controller.js

    

    //分页请求参数
    $scope.requestParam = {};
    //分页请求对象(模糊查询时,对象属性可以为列表数据的字段)
    $scope.requestData = {};

    /**
     * 广播通知分页指令
     */
    $scope.query = function () {
        $scope.$broadcast("event-pagination-query-bp", "query");
    };

当新增数据或者更新数据后, 可以调用controller里的query方法, 通知指令进行分页查询