本系列探寻AngularJS的路由机制，在WebStorm下开发。主要包括：
● UI-Router约束路由参数
● UI-Router的Resolve属性
● UI-Router给路由附加数据
● UI-Router的onEnter和onExit事件
AngularJS路由系列包括：
1、AngularJS路由系列(1)--基本路由配置
2、AngularJS路由系列(2)--刷新、查看路由,路由事件和URL格式，获取路由参数，路由的Resolve
3、AngularJS路由系列(3)-- UI-Router初体验
4、AngularJS路由系列(4)-- UI-Router的$state服务、路由事件、获取路由参数
5、AngularJS路由系列(5)-- UI-Router的路由约束、Resolve属性、路由附加数据、路由进入退出事件
6、AngularJS路由系列(6)-- UI-Router的嵌套State
项目文件结构
node_modules/
public/
.....app/
..........bower_components/
...............toastr/
....................toastr.min.css
....................toastr.min.js
...............jquery/
....................dist/
.........................jquery.min.js
...............angular/
....................angular.min.js
...............angular-ui-router/
....................release/
.........................angular-ui-router.min.js
...............angular-route/
.........................angular-route.min.js
..........controllers/
...............HomeController.js
...............AllSchoolsController.js
...............AllClassroomsController.js
...............AllActivityiesController.js
...............ClassroomController.js
...............ClassroomSummaryController.js
...............ClassroomMessageController.js
..........css/
...............bootstrap.cerulean.min.css
..........filters/
...............activityMonthFilter.js
..........services/
...............dataServices.js
...............notifier.js
..........templates/
...............home.html
...............allSchools.html
...............allClassrooms.html
...............allActivities.html
...............classroom.html
...............classroomDetail.html
...............classroom_parent.html
..........app.js
.....index.html
.....favicon.ico
server/
.....data/
.....routes/
.....views/
.....helpers.js
package.json
server.js
UI-Router约束路由参数
■ app.js, 约束参数
(function(){
var app = angular.module('app',['ui.router']);
app.config(['$logProvider', '$stateProvider', function($logProvider, $stateProvider){
$logProvider.debugEnabled(true);
$stateProvider
.state('home',{
url: '/',
templateUrl: '/app/templates/home.html',
controller: 'HomeController', //也可以写成HomeController as home
controllerAs: 'home'
})
.state('schools',{
url: '/schools',
controller: 'AllSchoolController',
controllerAs: 'schools',
templateUrl: '/app/templates/allSchools.thml'
})
.state('classrooms',{
url:'/classrooms',
controller: 'AllClassroomsController',
controllerAs: 'classrooms',
templateUrl: '/app/tempates/allClassrooms.html'
})
.state('activities', {
url: '/activities',
controller: 'AllActivitiesController',
controllerAs: 'activities',
templateUrl: '/app/templates/allActivities.html'
})
.state('classroom_summary', {
url: '/classrooms/:id',
templateUrl: '/app/templates/classroom.html',
controller: 'ClassroomController',
controllerAs: 'classroom'
})
.state('classroom_detail',{
url: '/classrooms/{id: [0-9]}/detail/{month}',
templateUrl: '/app/templates/classroomDetail.html',
controller: 'ClassroomController',
controllerAs: 'classroom'
})
}]);
app.run(['$rootScope', '$log', function($rootScope, $log){
$rootScope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
$log.debug('successfully changed states') ;
$log.debug('event', event);
$log.debug('toState', toState);
$log.debug('toParams', toParams);
$log.debug('fromState', fromState);
$log.debug('fromParams', fromParams);
});
$rootScope.$on('$stateNotFound', function(event, unfoundState, fromState, fromParams){
$log.error('The request state was not found: ' + unfoundState);
});
$rootScope.$on('$stateChangeError', function(event, toState, toParams, fromState, fromParams, error){
$log.error('An error occurred while changing states: ' + error);
$log.debug('event', event);
$log.debug('toState', toState);
$log.debug('toParams', toParams);
$log.debug('fromState', fromState);
$log.debug('fromParams', fromParams);
});
}]);
}());
url: '/classrooms/{id: [0-9]}/detail/{month}'这个就对id这个路由参数进行了约束。
■ app.js, 路由参数不符合约束的解决办法
UI-Router为我们提供了$urlRouteProvider服务。
(function(){
var app = angular.module('app',['ui.router']);
app.config(['$logProvider', '$stateProvider', '$urlRouteProvider', function($logProvider, $stateProvider, $urlRouteProvider){
$logProvider.debugEnabled(true);
//解决路由异常的办法在这里
$urlRouteProvider.otherwise('/');
$stateProvider
.state('home',{
url: '/',
templateUrl: '/app/templates/home.html',
controller: 'HomeController', //也可以写成HomeController as home
controllerAs: 'home'
})
.state('schools',{
url: '/schools',
controller: 'AllSchoolController',
controllerAs: 'schools',
templateUrl: '/app/templates/allSchools.thml'
})
.state('classrooms',{
url:'/classrooms',
controller: 'AllClassroomsController',
controllerAs: 'classrooms',
templateUrl: '/app/tempates/allClassrooms.html'
})
.state('activities', {
url: '/activities',
controller: 'AllActivitiesController',
controllerAs: 'activities',
templateUrl: '/app/templates/allActivities.html'
})
.state('classroom_summary', {
url: '/classrooms/:id',
templateUrl: '/app/templates/classroom.html',
controller: 'ClassroomController',
controllerAs: 'classroom'
})
.state('classroom_detail',{
url: '/classrooms/{id: [0-9]}/detail/{month}',
templateUrl: '/app/templates/classroomDetail.html',
controller: 'ClassroomController',
controllerAs: 'classroom'
})
}]);
app.run(['$rootScope', '$log', function($rootScope, $log){
$rootScope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
$log.debug('successfully changed states') ;
$log.debug('event', event);
$log.debug('toState', toState);
$log.debug('toParams', toParams);
$log.debug('fromState', fromState);
$log.debug('fromParams', fromParams);
});
$rootScope.$on('$stateNotFound', function(event, unfoundState, fromState, fromParams){
$log.error('The request state was not found: ' + unfoundState);
});
$rootScope.$on('$stateChangeError', function(event, toState, toParams, fromState, fromParams, error){
$log.error('An error occurred while changing states: ' + error);
$log.debug('event', event);
$log.debug('toState', toState);
$log.debug('toParams', toParams);
$log.debug('fromState', fromState);
$log.debug('fromParams', fromParams);
});
}]);
}());
■ UI-Router的params属性设置路由参数
(function(){
var app = angular.module('app',['ui.router']);
app.config(['$logProvider', '$stateProvider', '$urlRouteProvider', function($logProvider, $stateProvider, $urlRouteProvider){
$logProvider.debugEnabled(true);
//解决路由异常的办法在这里
$urlRouteProvider.otherwise('/');
$stateProvider
.state('home',{
url: '/',
templateUrl: '/app/templates/home.html',
controller: 'HomeController', //也可以写成HomeController as home
controllerAs: 'home'
})
.state('schools',{
url: '/schools',
controller: 'AllSchoolController',
controllerAs: 'schools',
templateUrl: '/app/templates/allSchools.thml'
})
.state('classrooms',{
url:'/classrooms',
controller: 'AllClassroomsController',
controllerAs: 'classrooms',
templateUrl: '/app/tempates/allClassrooms.html'
})
.state('activities', {
url: '/activities',
controller: 'AllActivitiesController',
controllerAs: 'activities',
templateUrl: '/app/templates/allActivities.html'
})
.state('classroom_summary', {
url: '/classrooms/:id',
templateUrl: '/app/templates/classroom.html',
controller: 'ClassroomController',
controllerAs: 'classroom'
})
.state('classroom_detail',{
url: '/classrooms/{id: [0-9]}/detail/{month}',
templateUrl: '/app/templates/classroomDetail.html',
controller: 'ClassroomController',
controllerAs: 'classroom',
params: {
classroomMessage: { value: 'Learning is fun!'}
}
})
}]);
app.run(['$rootScope', '$log', function($rootScope, $log){
$rootScope.$on('$stateChangeSuccess', function(event, toState, toParams, fromState, fromParams){
$log.debug('successfully changed states') ;
$log.debug('event', event);
$log.debug('toState', toState);
$log.debug('toParams', toParams);
$log.debug('fromState', fromState);
$log.debug('fromParams', fromParams);
});
$rootScope.$on('$stateNotFound', function(event, unfoundState, fromState, fromParams){
$log.error('The request state was not found: ' + unfoundState);
});
$rootScope.$on('$stateChangeError', function(event, toState, toParams, fromState, fromParams, error){
$log.error('An error occurred while changing states: ' + error);
$log.debug('event', event);
$log.debug('toState', toState);
$log.debug('toParams', toParams);
$log.debug('fromState', fromState);
$log.debug('fromParams', fromParams);
});
}]);
}());
■ ClassroomController.js， 接受更多的路由参数
(function(){
angular.module('app')
.controller('ClassroomController',['dataService', 'notifier', '$stateParams', ClassroomController]);
function ClassroomController(dataService, notifier, $stateParams){
var vm = this;
vm.month = $stateParams.month;
//接受param设置的参数
vm.message = $stateParams.classroomMessage;
dataService.getClassroom($stateParams.id)
.then(function(classroom){
vm.currentClassroom = classroom;
if($stateParams.month){
if(classroom.activities.length > 0){
vm.timePeriod = dataService.getMonthName($stateParams.month);
} else {
vm.timePeriod = 'No activities this month';
}
}
else{
vm.timePeriod = 'All activities';
}
})
.catch(showError);
function showError(message){
notifier.error(message);
}
}
}());
■ classroomDetal.html
{{classroom.message}}
UI-Router的Resolve属性
■ resolve 属性
.state('activities',{
url: '/activities',
controller: 'AllAcivitiesController',
controllerAs: 'activities',
templateUrl: '/app/templates/allActivities.html',
resolve: {
activities: function(dataService){
return dataService.getAllActiviites();
}
}
})
● 可以被注入到controller中去
● 返回一个object对象，对象的属性自定义，属性值是一个返回promise的函数
● promises必须被resolve,在变化发生之前
■ app.js, 添加resolve属性
.state('activities',{
url: '/activities',
controller: 'AlLActivitiesController',
controllerAs: 'activities',
templateUrl: '/app/templates/allActivities.html',
resolve: {
activities: function(dataService){
return dataService.getAllActivites();
}
}
})
■ AllActivitiesController.js，从resolve中获取数据
(function(){
angular.module('app')
.controller('AllActivitiesController',['dataService','notifier','$state','activites', AllActivitiesController]);
function AllActivitiesController(dataService, notifier, $state, activities){
var vm = this;
vm.selectedMonth = 1;
vm.allActivities = activities;
vm.search = function(){
$state.go('classroom_detail',{id:vm.selectedClassroom.id, month: vm.selectedMonth});
}
dataService.getAllClassrooms()
.then(function(classroom){
vm.allClassrooms = classrooms;
vm.selectedClassroom = classrooms[0];
})
.catch(showError);
function showError(message){
notifier.error(message);
}
}
}());
当点击Activites的时候，数据已经在controller，不需要重新获取，大大减少了页面加载时间。
UI-Router给路由附加数据
■ 给states附加数据
.state('activities',{
url: '/activities',
controller: 'AllActivitesController',
templateUlr: '/app/templates/allActivities.html',
data: {
name: 'MyActivity',
desc: 'Fun!'
}
})
● data中定义的属性是任意的
● 能被子state继承
■ app.js, 添加附加数据
.state('activities',{
url: '/activities',
controller: 'AlLActivitiesController',
controllerAs: 'activities',
templateUrl: '/app/templates/allActivities.html',
resolve: {
activities: function(dataService){
return dataService.getAllActivites();
}
},
data: {
name: 'My Activity',
desc: 'Func!'
},
foo: {
myFoo: 'bar'
}
})
■ AllActivitiesController.js，从resolve中获取数据
(function(){
angular.module('app')
.controller('AllActivitiesController',['dataService','notifier','$state','activites','$log', AllActivitiesController]);
function AllActivitiesController(dataService, notifier, $state, activities, $log){
var vm = this;
vm.selectedMonth = 1;
vm.allActivities = activities;
$log.debug($state.current.data);
$log.debug($state.current.foo);
vm.search = function(){
$state.go('classroom_detail',{id:vm.selectedClassroom.id, month: vm.selectedMonth});
}
dataService.getAllClassrooms()
.then(function(classroom){
vm.allClassrooms = classrooms;
vm.selectedClassroom = classrooms[0];
})
.catch(showError);
function showError(message){
notifier.error(message);
}
}
}());
UI-Router的onEnter和onExit事件
.state('classroom',{
url:'/clsssrooms',
controller:'AllClssroomsController',
controllerAs: 'classrooms',
templateUrl: '/app/tempaltes/allClassrooms.html',
onEnter: function($log){
$log.debug('Entering the classrooms state');
},
onExit: function($log){
$log.debug('Existing the classrooms state');
}
})
未完待续~~