Vue学习之Vue模拟后台数据
前后端项目的开发，需要前端和后端同时进行开发，有时后端开发人员还未完成API接口可以提供给前端调用，因此就需要模拟前端请求后端接口，后端返回数据。一般开发中都是返回json数据格式来完成前后端的交互。
1. 首先下载一个vue-cli的项目模板
vue init webpack myProject
2. 在项目根目录下创建一个data.json的模拟后台返回数据，名字可以随便写不一定非得是data.json哈，但是格式必须是json格式哈
{
"seller": {
"name": "粥品香坊（回龙观）",
"description": "蜂鸟专送",
"deliveryTime": 38,
"score": 4.2,
"serviceScore": 4.1,
"foodScore": 4.3,
"rankRate": 69.2,
"minPrice": 20,
"deliveryPrice": 4,
"ratingCount": 24,
"sellCount": 90,
"bulletin": "粥品香坊其烹饪粥料的秘方源于中国千年古法，在融和现代制作工艺，由世界烹饪大师屈浩先生领衔研发。坚守纯天然、0添加的良心品质深得消费者青睐，发展至今成为粥类的引领品牌。是2008年奥运会和2013年园博会指定餐饮服务商。",
"supports": [
{
"type": 0,
"description": "在线支付满28减5"
},
{
"type": 1,
"description": "VC无限橙果汁全场8折"
},
{
"type": 2,
"description": "单人精彩套餐"
},
{
"type": 3,
"description": "该商家支持发票,请下单写好发票抬头"
},
{
"type": 4,
"description": "已加入“外卖保”计划,食品安全保障"
}
],
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/seller_avatar_256px.jpg",
"pics": [
"http://fuss10.elemecdn.com/8/71/c5cf5715740998d5040dda6e66abfjpeg.jpeg?imageView2/1/w/180/h/180",
"http://fuss10.elemecdn.com/b/6c/75bd250e5ba69868f3b1178afbda3jpeg.jpeg?imageView2/1/w/180/h/180",
"http://fuss10.elemecdn.com/f/96/3d608c5811bc2d902fc9ab9a5baa7jpeg.jpeg?imageView2/1/w/180/h/180",
"http://fuss10.elemecdn.com/6/ad/779f8620ff49f701cd4c58f6448b6jpeg.jpeg?imageView2/1/w/180/h/180"
],
"infos": [
"该商家支持发票,请下单写好发票抬头",
"品类:其他菜系,包子粥店",
"北京市昌平区回龙观西大街龙观置业大厦底商B座102单元1340",
"营业时间:10:00-20:30"
]
},
"goods": [
{
"name": "热销榜",
"type": -1,
"foods": [
{
"name": "皮蛋瘦肉粥",
"price": 10,
"oldPrice": "",
"description": "咸粥",
"sellCount": 229,
"rating": 100,
"info": "一碗皮蛋瘦肉粥，总是我到粥店时的不二之选。香浓软滑，饱腹暖心，皮蛋的Q弹与瘦肉的滑嫩伴着粥香溢于满口，让人喝这样的一碗粥也觉得心满意足",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "很喜欢的粥",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 1,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/c/cd/c12745ed8a5171e13b427dbc39401jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/c/cd/c12745ed8a5171e13b427dbc39401jpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "扁豆焖面",
"price": 14,
"oldPrice": "",
"description": "",
"sellCount": 188,
"rating": 96,
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 1,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"info": "",
"icon": "http://fuss10.elemecdn.com/c/6b/29e3d29b0db63d36f7c500bca31d8jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/c/6b/29e3d29b0db63d36f7c500bca31d8jpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "葱花饼",
"price": 10,
"oldPrice": "",
"description": "",
"sellCount": 124,
"rating": 85,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 1,
"text": "没啥味道",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 1,
"text": "很一般啊",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/f/28/a51e7b18751bcdf871648a23fd3b4jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/f/28/a51e7b18751bcdf871648a23fd3b4jpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "牛肉馅饼",
"price": 14,
"oldPrice": "",
"description": "",
"sellCount": 114,
"rating": 91,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 1,
"text": "难吃不推荐",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/d/b9/bcab0e8ad97758e65ae5a62b2664ejpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/d/b9/bcab0e8ad97758e65ae5a62b2664ejpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "招牌猪肉白菜锅贴/10个",
"price": 17,
"oldPrice": "",
"description": "",
"sellCount": 101,
"rating": 78,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 1,
"text": "不脆,不好吃",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/7/72/9a580c1462ca1e4d3c07e112bc035jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/7/72/9a580c1462ca1e4d3c07e112bc035jpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "南瓜粥",
"price": 9,
"oldPrice": "",
"description": "甜粥",
"sellCount": 91,
"rating": 100,
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/8/a6/453f65f16b1391942af11511b7a90jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/8/a6/453f65f16b1391942af11511b7a90jpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "红豆薏米美肤粥",
"price": 12,
"oldPrice": "",
"description": "甜粥",
"sellCount": 86,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/d/22/260bd78ee6ac6051136c5447fe307jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/d/22/260bd78ee6ac6051136c5447fe307jpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "八宝酱菜",
"price": 4,
"oldPrice": "",
"description": "",
"sellCount": 84,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/9/b5/469d8854f9a3a03797933fd01398bjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/9/b5/469d8854f9a3a03797933fd01398bjpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "红枣山药糙米粥",
"price": 10,
"oldPrice": "",
"description": "",
"sellCount": 81,
"rating": 91,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/9/b5/469d8854f9a3a03797933fd01398bjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/9/b5/469d8854f9a3a03797933fd01398bjpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "糊塌子",
"price": 10,
"oldPrice": "",
"description": "",
"sellCount": 80,
"rating": 93,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/0/05/097a2a59fd2a2292d08067e16380cjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/0/05/097a2a59fd2a2292d08067e16380cjpeg.jpeg?imageView2/1/w/750/h/750"
}
]
},
{
"name": "单人精彩套餐",
"type": 2,
"foods": [
{
"name": "红枣山药粥套餐",
"price": 29,
"oldPrice": 36,
"description": "红枣山药糙米粥,素材包,爽口莴笋丝,四川泡菜或八宝酱菜,配菜可备注",
"sellCount": 17,
"rating": 100,
"info": "",
"ratings": [
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/6/72/cb844f0bb60c502c6d5c05e0bddf5jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/6/72/cb844f0bb60c502c6d5c05e0bddf5jpeg.jpeg?imageView2/1/w/750/h/750"
}
]
},
{
"name": "冰爽饮品限时特惠",
"type": 1,
"foods": [
{
"name": "VC无限橙果汁",
"price": 8,
"oldPrice": 10,
"description": "",
"sellCount": 15,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "还可以",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/e/c6/f348e811772016ae24e968238bcbfjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/e/c6/f348e811772016ae24e968238bcbfjpeg.jpeg?imageView2/1/w/750/h/750"
}
]
},
{
"name": "精选热菜",
"type": -1,
"foods": [
{
"name": "娃娃菜炖豆腐",
"price": 17,
"oldPrice": "",
"description": "",
"sellCount": 43,
"rating": 92,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "菜量还可以,味道还可以",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/d/2d/b1eb45b305635d9dd04ddf157165fjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/d/2d/b1eb45b305635d9dd04ddf157165fjpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "手撕包菜",
"price": 16,
"oldPrice": "",
"description": "",
"sellCount": 29,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/9/c6/f3bc84468820121112e79583c24efjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/9/c6/f3bc84468820121112e79583c24efjpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "香酥黄金鱼/3条",
"price": 11,
"oldPrice": "",
"description": "",
"sellCount": 15,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/4/e7/8277a6a2ea0a2e97710290499fc41jpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/4/e7/8277a6a2ea0a2e97710290499fc41jpeg.jpeg?imageView2/1/w/750/h/750"
}
]
},
{
"name": "爽口凉菜",
"type": -1,
"foods": [
{
"name": "八宝酱菜",
"price": 4,
"oldPrice": "",
"description": "",
"sellCount": 84,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
],
"icon": "http://fuss10.elemecdn.com/9/b5/469d8854f9a3a03797933fd01398bjpeg.jpeg?imageView2/1/w/114/h/114",
"image": "http://fuss10.elemecdn.com/9/b5/469d8854f9a3a03797933fd01398bjpeg.jpeg?imageView2/1/w/750/h/750"
},
{
"name": "拍黄瓜",
"price": 9,
"oldPrice": "",
"description": "",
"sellCount": 28,
"rating": 100,
"info": "",
"ratings": [
{
"username": "3******c",
"rateTime": 1469281964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "2******3",
"rateTime": 1469271264000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
},
{
"username": "3******b",
"rateTime": 1469261964000,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png"
}
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},
{
"username": "s******c",
"rateTime": 1469141964000,
"deliveryTime": "",
"score": 4,
"rateType": 0,
"text": "好",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "z******3",
"rateTime": 1469131264000,
"deliveryTime": "",
"score": 5,
"rateType": 0,
"text": "吃了还想再吃",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "n******b",
"rateTime": 1469121964000,
"deliveryTime": "",
"score": 3,
"rateType": 1,
"text": "发票开的不对",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "m******c",
"rateTime": 1469111964000,
"deliveryTime": 30,
"score": 5,
"rateType": 0,
"text": "好吃",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "l******3",
"rateTime": 1469101264000,
"deliveryTime": 40,
"score": 5,
"rateType": 0,
"text": "还不错吧",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "3******o",
"rateTime": 1469091964000,
"deliveryTime": "",
"score": 2,
"rateType": 1,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "3******p",
"rateTime": 1469081964000,
"deliveryTime": "",
"score": 4,
"rateType": 0,
"text": "很喜欢的粥",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "o******k",
"rateTime": 1469071264000,
"deliveryTime": "",
"score": 5,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
},
{
"username": "k******b",
"rateTime": 1469061964000,
"deliveryTime": "",
"score": 4,
"rateType": 0,
"text": "",
"avatar": "http://static.galileo.xiaojukeji.com/static/tms/default_header.png",
"recommend": []
}
]
}
3. 最重要的一步来了，由于vue-cli版本的不同，会造成误解，一种就版本是在build文件夹下有dev-server.js和dev-client.js的这两个文件，另外一个新版本就build文件夹下没有dev-server.js和dev-client.js这俩个文件，而是webpack.dev.conf.js代替，我这里使用的就是新版本的作为演示
4.在webpack.dev.conf.js文件中const portfinder = require('portfinder')后添加在如下代码
const express = require('express')
const app = express()
var appData = require('../data.json')//加载本地数据文件
var seller = appData.seller//获取对应的本地数据
var goods = appData.goods
var ratings = appData.ratings
var apiRoutes = express.Router()
5. 然后继续在webpack.dev.conf.js文件中继续添加如下代码，找到devServer
before(app) {
app.get('/api/seller', (req, res) => {
res.json({
errno: 0,
data: seller
})//接口返回json数据，上面配置的数据seller就赋值给data请求后调用
}),
app.get('/api/goods', (req, res) => {
res.json({
errno: 0,
data: goods
})
}),
app.get('/api/ratings', (req, res) => {
res.json({
errno: 0,
data: ratings
})
})
}
},
6. 最后一步就是npm run dev，然后在浏览器中输入localhost:8080/api/goods
大功告成！
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