使用ui-route實現多層嵌套路由

1、預期實現效果:html

https://liyuan-meng.github.io/uiRouter-app/index.htmlgit

 

(項目地址:https://github.com/liyuan-meng/uiRouter-app)github

2、分析題目要求,給出依賴關係,構建項目json

1. service:數組

(1)根據條件查詢people數據checkPeople.service,不給出條件則查詢全部。promise

(2)獲得路由信息getStateParams.service。app

2. components:異步

(1)hello模塊:點擊button按鈕更改內容。ide

(2)peolpleList模塊:顯示people列表,點擊people顯示people詳情。依賴於checkPeople.service模塊。函數

(3)peopleDetail模塊:顯示people詳情,依賴於checkPeople.service模塊和getStateParams.service模塊。

3. 構建項目:

如圖所示:component目錄用來保存全部服務模塊和業務模塊,lib目錄保存外部引用(我是用的是angular.js1.5.8和ui-route0.2.18),app.config.js文件用來配置路由,index.html則做爲入口文件。

3、實現這個例子

1. 首頁index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="./lib/angular.js"></script>
    <script src="./lib/angular-ui-route.js"></script>
    <script src="./app.config.js"></script>
    <script src="./components/core/people/checkPeople.service.js"></script>
    <script src="./components/core/people/getStateParams.service.js"></script>
    <script src="./components/hello/hello.component.js"></script>
    <script src="./components/people-list/people-list.component.js"></script>
    <script src="./components/people-detail/people-detail.component.js"></script>
</head>
<body ng-app="helloSolarSystem">
<div>
    <a ui-sref="helloState">Hello</a>
    <a ui-sref="aboutState">About</a>
    <a ui-sref="peopleState">People</a>
</div>

<ui-view></ui-view>

</body>
</html>

(1)導入lib中的文件以及全部用到的service和component服務的文件。

(2)ng-app="helloSolarSystem"指明瞭從helloSolarSystem模塊開始解析。

(3)定義視圖<ui-view></ui-view>

2. 配置路由app.config.js

'use strict';

angular.module("helloSolarSystem", ['peopleList', 'peopleDetail', 'hello','ui.router']).

    config(['$stateProvider', function ($stateProvider) {

        $stateProvider.state('helloState', {
            url: '/helloState',
            template:'<hello></hello>'

        }).state('aboutState', {
            url: '/about',
            template: '<h4>Its the UI-Router Hello Solar System app!</h4>'

        }).state('peopleState', {
            url: '/peopleList',
            template:'<people-list></people-list>'

        }).state('peopleState.details', {
            url:'/detail/:id',
            template: '<people-detail></people-detail>'
        })
    }
]);

(1)模塊名字:helloSolarSystem;

(2)注入'peopleList', 'peopleDetail', 'hello','ui.router'模塊。

(3)配置stateProvider服務的視圖控制,例如第一個名爲helloState的視圖控制器:當ui-sref == "helloState"的時候,路由更新爲url的值#/helloState,而且<ui-view></ui-view>中顯示的內容爲<hello></hello>組件解析出的內容。

(4)嵌套路由的實現:名爲peopleState的視圖控制器是父路由。名爲peopleState.details的視圖控制器是子路由。這是一種相對路由方式,父路由將匹配.../index.html#/peopleState/,子路由將匹配.../index.html#/peopleState/detail/x(x是/detail/:id中的id的值)。若是改爲絕對路由的形式,只須要寫成url:'^/detail/:id',這時子路由將匹配.../index.html#/detail/x(x是/detail/:id中的id的值)。

4. 實現checkPeople.service(根據條件查找people)

checkPeople.sercice.js

'use strict';

//根據條件(參數)查找信息。
angular.module('people.checkPeople', ['ui.router']).
    factory('CheckPeople', ['$http', function ($http) {
        return {
            getData: getData
        };
        function getData(filed) {
            var people;
            var promise =  $http({
                method: 'GET',
                url: './data/people.json'
            }).then(function (response) {
                if (filed) {
                    people = response.data.filter(function (value) {
                        if (Number(value.id) === Number(filed)) {
                            return value;
                        }
                    })
                } else {
                    people = response.data;
                }
                return people;
            });
            return promise;
        }
    }]);

(1)在getData這個函數中,咱們想要返回一個保存people信息的數組,可是因爲使用$http().then()服務的時候,這是一個異步請求,咱們並不知道請求何時結束,因此世界返回people數組是有問題的。咱們注意到,$http().then()是一個Promise對象,因此咱們能夠想到直接將這個對象返回,這樣在就能夠使用"函數的結果.then(function(data))"來獲得異步請求拿來的數據data。

3. 實現getStateParams.service(獲取路由信息)

getStatePatams.service.js

"use strict";

angular.module("getStateParams", ['ui.router']).
    factory("GetStateParams", ["$location", function ($location) {
        return {
            getParams: getParams
        };
        function getParams() {
            var partUrlArr = $location.url().split("/");
            return partUrlArr[partUrlArr.length-1];
        }
}]);

(1)這裏的getParams函數返回的是路由信息的最後一個數據,也就是people的id,這個service有些特殊,不夠通用,可能還須要優化一下會更加合理。不過並不影響咱們的需求。

4. 實現hello模塊

hello.template.html

<div>
    <div ng-hide="hideFirstContent">hello solar sytem!</div>
    <div ng-hide="!hideFirstContent">whats up solar sytem!</div>
    <button ng-click="ctlButton()">click</button>
</div>

hello.component.js

'use strict';

angular.module("hello", [])
    .component('hello', {
        templateUrl: './components/hello/hello.template.html',
        controller: ["$scope", 
            function HelloController($scope) {
                $scope.hideFirstContent = false;
                $scope.ctlButton = function () {
                    this.hideFirstContent = !this.hideFirstContent;
                };
            }
        ]
    });

5. 實現peolpeList模塊:

peopleList.template.html

<div>
    <ul>
        <a ng-repeat="item in people" ui-sref="peopleState.details({id:item.id})">
            <li>{{item.name}}</li>
        </a>
    </ul>
    <ui-view></ui-view>
</div>

(1)這裏的<ui-view></ui-view>用來顯示peopleList的子組件pepleDetail

peopleList.component.js

'use strict';

angular.module("peopleList", ['people.checkPeople'])
    .component('peopleList', {
        templateUrl: './components/people-list/people-list.template.html',
        controller: ['CheckPeople','$scope',
            function PeopleListController(CheckPeople, $scope) {
                $scope.people = [];
                CheckPeople.getData().then(function(data){
                    $scope.people = data;
                });
            }
        ]
    });

6. 實現peopleDetail模塊

peopleDetail.template.html

<ul ng-repeat="item in peopleDetails track by $index">
    <li>名字: {{item.name}}</li>
    <li>介紹: {{item.intro}}</li>
</ul>

peopleDetail.component.js

'use strict';

angular.module("peopleDetail", ['people.checkPeople', 'getStateParams'])
    .component('peopleDetail', {
        templateUrl: './components/people-detail/people-detail.template.html',
        controller: ['CheckPeople', 'GetStateParams', '$scope',
            function peopleDetailController(CheckPeople, GetStateParams, $scope) {
                $scope.peopleDetails = [];
                CheckPeople.getData(GetStateParams.getParams()).then(function(data){
                    $scope.peopleDetails = data;
                });
            }
        ]
    });

7.源碼:

https://github.com/liyuan-meng/uiRouter-app

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