本文介绍了AngularJS使用ui-route实现多层嵌套路由的示例,分享给大家,具体如下:
一、预期实现效果:
https://liyuan-meng.github.io/uiRouter-app/index.html
(项目地址:https://github.com/liyuan-meng/uiRouter-app)
二、分析题目要求,给出依赖关系,构建项目
1. service:
(1)根据条件查询people数据checkPeople.service,不给出条件则查询所有。
(2)得到路由信息getStateParams.service。
2. components:
(1)hello模块:点击button按钮更改内容。
(2)peolpleList模块:显示people列表,点击people显示people详情。依赖于checkPeople.service模块。
(3)peopleDetail模块:显示people详情,依赖于checkPeople.service模块和getStateParams.service模块。
3. 构建项目:
如图所示:component目录用来保存所有服务模块和业务模块,lib目录保存外部引用(我是用的是angular.js1.5.8和ui-route0.2.18),app.config.js文件用来配置路由,index.html则作为入口文件。
三、实现这个例子
1. 首页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)导入lib中的文件以及所有用到的service和component服务的文件。
(2)ng-app=\”helloSolarSystem\”指明了从helloSolarSystem模块开始解析。
(3)定义视图<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) { $stateProvider.state(\'helloState\', { url: \'/helloState\', template:\'<hello></hello>\' }).state(\'aboutState\', { url: \'/about\', template: \'<h4>Its the UI-Router Hello Solar System app!</h4>\' }).state(\'peopleState\', { url: \'/peopleList\', template:\'<people-list></people-list>\' }).state(\'peopleState.details\', { url:\'/detail/:id\', template: \'<people-detail></people-detail>\' }) } ]);
(1)模块名字:helloSolarSystem;
(2)注入\’peopleList\’, \’peopleDetail\’, \’hello\’,\’ui.router\’模块。
(3)配置stateProvider服务的视图控制,例如第一个名为helloState的视图控制器:当ui-sref == \”helloState\”的时候,路由更新为url的值#/helloState,并且<ui-view></ui-view>中显示的内容为<hello></hello>组件解析出的内容。
(4)嵌套路由的实现:名为peopleState的视图控制器是父路由。名为peopleState.details的视图控制器是子路由。这是一种相对路由方式,父路由将匹配…/index.html#/peopleState/,子路由将匹配…/index.html#/peopleState/detail/x(x是/detail/:id中的id的值)。如果改成绝对路由的形式,只需要写成url:\’^/detail/:id\’,这时子路由将匹配…/index.html#/detail/x(x是/detail/:id中的id的值)。
4. 实现checkPeople.service(根据条件查找people)
checkPeople.sercice.js
\'use strict\'; //根据条件(参数)查找信息。 angular.module(\'people.checkPeople\', [\'ui.router\']). factory(\'CheckPeople\', [\'$http\', function ($http) { return { getData: getData }; function getData(filed) { var people; var promise = $http({ method: \'GET\', url: \'./data/people.json\' }).then(function (response) { if (filed) { people = response.data.filter(function (value) { if (Number(value.id) === Number(filed)) { return value; } }) } else { people = response.data; } return people; }); return promise; } }]);
(1)在getData这个函数中,我们想要返回一个保存people信息的数组,但是由于使用$http().then()服务的时候,这是一个异步请求,我们并不知道请求什么时候结束,所以世界返回people数组是有问题的。我们注意到,$http().then()是一个Promise对象,所以我们可以想到直接将这个对象返回,这样在就可以使用\”函数的结果.then(function(data))\”来得到异步请求拿来的数据data。
3. 实现getStateParams.service(获取路由信息)
getStatePatams.service.js
\"use strict\"; angular.module(\"getStateParams\", [\'ui.router\']). factory(\"GetStateParams\", [\"$location\", function ($location) { return { getParams: getParams }; function getParams() { var partUrlArr = $location.url().split(\"/\"); return partUrlArr[partUrlArr.length-1]; } }]);
(1)这里的getParams函数返回的是路由信息的最后一个数据,也就是people的id,这个service有些特殊,不够通用,可能还需要优化一下会更加合理。不过并不影响我们的需求。
4. 实现hello模块
hello.template.html
<div> <div ng-hide=\"hideFirstContent\">hello solar sytem!</div> <div ng-hide=\"!hideFirstContent\">whats up solar sytem!</div> <button ng-click=\"ctlButton()\">click</button> </div>
hello.component.js
\'use strict\'; angular.module(\"hello\", []) .component(\'hello\', { templateUrl: \'./components/hello/hello.template.html\', controller: [\"$scope\", function HelloController($scope) { $scope.hideFirstContent = false; $scope.ctlButton = function () { this.hideFirstContent = !this.hideFirstContent; }; } ] });
5. 实现peolpeList模块:
peopleList.template.html
<div> <ul> <a ng-repeat=\"item in people\" ui-sref=\"peopleState.details({id:item.id})\"> <li>{{item.name}}</li> </a> </ul> <ui-view></ui-view> </div>
(1)这里的<ui-view></ui-view>用来显示peopleList的子组件pepleDetail
peopleList.component.js
\'use strict\'; angular.module(\"peopleList\", [\'people.checkPeople\']) .component(\'peopleList\', { templateUrl: \'./components/people-list/people-list.template.html\', controller: [\'CheckPeople\',\'$scope\', function PeopleListController(CheckPeople, $scope) { $scope.people = []; CheckPeople.getData().then(function(data){ $scope.people = data; }); } ] });
6. 实现peopleDetail模块
peopleDetail.template.html
<ul ng-repeat=\"item in peopleDetails track by $index\"> <li>名字: {{item.name}}</li> <li>介绍: {{item.intro}}</li> </ul>
peopleDetail.component.js
\'use strict\'; angular.module(\"peopleDetail\", [\'people.checkPeople\', \'getStateParams\']) .component(\'peopleDetail\', { templateUrl: \'./components/people-detail/people-detail.template.html\', controller: [\'CheckPeople\', \'GetStateParams\', \'$scope\', function peopleDetailController(CheckPeople, GetStateParams, $scope) { $scope.peopleDetails = []; CheckPeople.getData(GetStateParams.getParams()).then(function(data){ $scope.peopleDetails = data; }); } ] });
7.源码:https://github.com/liyuan-meng/uiRouter-app
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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