AngularJS使用ui-route实现多层嵌套路由的示例

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编程小技巧。

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