angularJS商品购物车案例
<!DOCTYPE html>
<html ng-app="shopping">
<head lang="en">
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="bootstrap-3.3.4-dist/css/bootstrap.css"/>
<style type="text/css">
.orderSelect
{
color: red;
}
</style>
</head>
<body>
<div class="container">
<div ng-controller="goodsList">
<nav class="navbar navbar-default" role="navigation">
<form class="navbar-form navbar-left" role="search">
<input type="text" ng-model="search" class="form-control" placeholder="搜索">
</form>
</nav>
<table class="table table-bordered table-hover" ng-show="goods.length">
<thead>
<tr class="success">
<!--ng-class="{dropup: order===''}"的这个部分order===''是一个表达式如果为真则添加前面的样式-->
<th ng-click="orderGoods('id')" ng-class="{dropup: order===''}">
产品编号<span class="caret" ng-class="{orderSelect: orderType==='id'}" ></span>
</th>
<th ng-click="orderGoods('name')" ng-class="{dropup: order===''}">
产品名字<span class="caret" ng-class="{orderSelect: orderType==='name'}" ></span>
</th>
<th ng-click="orderGoods('sum')" ng-class="{dropup: order===''}">
购买数量<span class="caret" ng-class="{orderSelect: orderType==='sum'}"></span>
</th>
<th ng-click="orderGoods('unitPrice')" ng-class="{dropup: order===''}">
产品单价<span class="caret" ng-class="{orderSelect: orderType==='unitPrice'}" ></span>
</th>
<th ng-click="orderGoods('unitPrice * sum')" ng-class="{dropup: order===''}">
产品总价<span class="caret" ng-class="{orderSelect: orderType==='unitPrice * sum'}" ></span>
</th>
<th>
操作
</th>
</tr>
</thead>
<tbody>
<!--可以使用过滤器提供搜索功能->filter: {name:search}-->
<tr class="info" ng-repeat="item in goods | filter: {name:search} | orderBy: order + orderType">
<td><span ng-bind="item.id"></span></td>
<td><span ng-bind="item.name"></span></td>
<td>
<input type="button" value="-" class="btn" ng-click="subNumber(item.id)"/>
<input type="text" class="text-center" ng-model="item.sum"/>
<input type="button" value="+" class="btn" ng-click="addNumber(item.id)"/>
</td>
<!--过滤器 {{xxx | currency:'￥ '}}-->
<td><span ng-bind="item.unitPrice | currency:'￥ '"></span></td>
<td><span ng-bind="item.sum * item.unitPrice | currency:'￥ '"></span></td>
<td><input type="button" value="移除" class="btn btn-danger" ng-click="remove(item.id)"/></td>
</tr>
<tr class="warning">
<td colspan="2">购买总价：<span ng-bind="sumPricesFn() | currency:'￥ '"></span></td>
<td colspan="2">购买总数：<span ng-bind="sumFn()"></span></td>
<td colspan="2"><input type="button" value="清空购物车" class="btn btn-danger" ng-click="clear()"/></td>
</tr>
</tbody>
</table>
<div ng-show="!goods.length">您的购物车为空！</div>
</div>
</div>
</body>
<script src="../angular.js"></script>
<script>
var app=angular.module("shopping",[]);
app.controller("goodsList", function($scope){
$scope.goods=[
{
id:1,
name:'苹果6Plus',
sum:3,
unitPrice:5000
},
{
id:2,
name:'苹果5s',
sum:1,
unitPrice:4000
},
{
id:3,
name:'lenovo P404',
sum:1,
unitPrice:3899
},
{
id:4,
name:'飞科剃须刀f77',
sum:10,
unitPrice:100
},
{
id:5,
name:'情侣体恤',
sum:2,
unitPrice:110
}
];
//单件商品总价
$scope.sumPricesFn = function(){
var sumPrices = 0;
angular.forEach($scope.goods,function(item){
sumPrices += item.sum * item.unitPrice;
});
return sumPrices;
};
//单件商品总数
$scope.sumFn = function(){
var sum = 0;
angular.forEach($scope.goods,function(item){
sum += Number(item.sum);
});
return sum;
};
var getIndex = function(id){
var stateIndex = -1;
angular.forEach($scope.goods, function(item, index){
if(id === item.id){
stateIndex = index;
}
});
return stateIndex;
}
//移除方法
$scope.remove = function(id){
var tmpGoodIndex = getIndex(id);
if(tmpGoodIndex !== -1){
//将从索引位置为stateIndex删除一个值
$scope.goods.splice(tmpGoodIndex, 1);
}
};
//清空购物车方法
$scope.clear = function(){
$scope.goods=[];
}
//增加商品数量
$scope.addNumber = function(id){
var tmpGoodIndex = getIndex(id);
if(tmpGoodIndex !== -1){
++$scope.goods[tmpGoodIndex].sum;
}
};
//减少商品数量
$scope.subNumber = function(id){
var tmpGoodIndex = getIndex(id);
if(tmpGoodIndex !== -1){
--$scope.goods[tmpGoodIndex].sum;
}
}; $scope.$watch('goods', function(newVal, oldVal){
angular.forEach(newVal,function(item, index){
//监听商品信息如果为非法字符那么回归原来的商品数量
if(isNaN(item.sum) || item.sum < 0){
item.sum = oldVal[index].sum;
}
});
},true);
//列表排序
/*
* $scope.order = '-';这个'-'代表倒序
* */
$scope.order = '-';
$scope.orderType = 'id';
$scope.orderGoods = function(type){
if($scope.order === '-'){
$scope.order = '';
} else {
$scope.order = '-';
}
$scope.orderType = type;
};
});
</script>
</html>
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