基于ArkUI eTS开发的坚果食谱（NutRecipes）

ArkUI详解 2022-08-18 1254

描述

今天为大家做一款坚果食谱，有大量的食谱数据，覆盖了很多种类的食谱。

请求urlUrl:https://way.jd.com/jisuapi/search?keyword=白菜&num=10&start=0&appkey=7c913be32b690701cd994d804a6d4294

实现的功能：

获取接口数据

菜谱列表

菜谱详情页

你能学到的有：

网络请求

可滚动组件

容器组件

路由跳转

基础组件

文件结构

├── config.json

├── ets

│ └── MainAbility

│ ├── app.ets

│ ├── data

│ │ ├── get_cook_data.ets

│ │ └── get_test.ets

│ ├── model

│ │ ├── cookDetailModel.ets

│ │ ├── cookModel.ets

│ │ ├── materialModel.ets

│ │ └── processModel.ets

│ └── pages

│ ├── Main.ets

│ ├── cookbookDetails.ets

│ └── index.ets

└── resources

├── base

│ ├── element

│ │ ├── color.json

│ │ └── string.json

│ └── media

│ └── icon.png

└── rawfile

效果预览：

获取新闻接口a

标识：get

接口地址：

https://way.jd.com/jisuapi/search

请求方式：

HTTPS GET POST

请求示例：

Url:https://way.jd.com/jisuapi/search?keyword=白菜&num=10&start=0&appkey=7c913be32b690701cd994d804a6d4294

请求参数说明：

返回参数说明：

JSON返回示例

{"code":"10000","charge":false,"msg":"查询成功","result":{

"status": "0",

"msg": "ok",

"result": {

"num": "10",

"list": [

{

"id": "8",

"classid": "2",

"name": "醋溜白菜",

"peoplenum": "1-2人",

"preparetime": "10-20分钟",

"cookingtime": "10-20分钟",

"content": "醋溜白菜，是北方人经常吃的一道菜，尤其是在多年前的冬天。那时，没有大棚菜，冬天，家家每天佐餐的基本上都是冬储大白菜，聪明的家庭主妇总是想方设法将这单调的菜变成多种菜式，于是，醋溜白菜被频繁的端上餐桌。

美食不分贵贱，用最平凡的原料、最简单的调料和最普通的手法做出美味的菜肴来才是美食的真谛。

这次，我做的醋溜白菜，近似鲁菜的做法，使个这道菜酸甜浓郁、开胃下饭、老少咸宜。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/115138_46688.jpg",

"tag": "减肥,家常菜,排毒,补钙",

"material": [

{

"mname": "油",

"type": "0",

"amount": "适量"

{

"mname": "盐",

"type": "0",

"amount": "适量"

{

"mname": "花椒",

"type": "0",

"amount": "适量"

{

"mname": "干红椒",

"type": "0",

"amount": "适量"

{

"mname": "葱",

"type": "0",

"amount": "适量"

{

"mname": "姜",

"type": "0",

"amount": "适量"

{

"mname": "蒜",

"type": "0",

"amount": "适量"

{

"mname": "醋",

"type": "0",

"amount": "适量"

{

"mname": "酱油",

"type": "0",

"amount": "适量"

{

"mname": "糖",

"type": "0",

"amount": "适量"

{

"mname": "淀粉",

"type": "0",

"amount": "适量"

{

"mname": "白菜",

"type": "1",

"amount": "380g"

}

"process": [

{

"pcontent": "准备食材。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162550_84583.jpg"

{

"pcontent": "将白菜斜刀片成薄片。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162551_90620.jpg"

{

"pcontent": "片切好的白菜帮与菜叶分别入好。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162551_20925.jpg"

{

"pcontent": "盐、糖、生抽、醋淀粉加少许水调匀备用。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162552_23125.jpg"

{

"pcontent": "锅中油烧热，先入花椒炒香后捞出。再加入干红椒段略炒。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162552_57046.jpg"

{

"pcontent": "加入葱姜蒜煸炒香，然后入白菜帮翻炒。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162553_89090.jpg"

{

"pcontent": "炒至菜帮变软时，加入白菜叶。",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162553_40445.jpg"

{

"pcontent": "快速翻炒至菜软，勾入碗汁",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162554_92210.jpg"

{

"pcontent": "使汤汁均匀的包裹在菜帮上即可",

"pic": "http://api.jisuapi.com/recipe/upload/20160719/162554_29522.jpg"

}

]

}

]

}

}}

接下来，我们开始今天的实战，首先创建一个项目NutJoke

点击下一步

因为我们要网络请求

所以我们需要在config.json中配置网络请求权限

网络请求的步骤

1、声明网络请求权限

在entry下的config.json中module字段下配置权限

"reqPermissions": [

{

"name": "ohos.permission.INTERNET"

}

]

2、支持http明文请求

默认支持https，如果要支持http，在entry下的config.json中deviceConfig字段下配置

"deviceConfig": {"default": {

"network": {

"cleartextTraffic": true

}

}},

3、创建HttpRequest

// 导入模块

import http from '@ohos.net.http';

// 创建HttpRequest对象

let httpRequest = http.createHttp();

4、发起请求

GET请求（默认为GET请求）

// 请求方式：GET

getRequest() {

// 每一个httpRequest对应一个http请求任务，不可复用

let httpRequest = http.createHttp()

let url = "https://way.jd.com/jisuapi/search?keyword=白菜&num=10&start=0&appkey=7c913be32b690701cd994d804a6d4294"

httpRequest.request(url, (err, data) => {

if (!err) {

if (data.responseCode == 200) {

console.info('=====data.result=====' + data.result)

// 解析数据

//this.content= data.result;

// 解析数据

var cookModel: CookModel = JSON.parse(data.result.toString())

// 判断接口返回码，0成功

if (cookModel.code == 1000) {

// 设置数据

this.future = cookModel.result.result.list.material

this.cookdetail = cookModel.result.result.list

this.isRequestSucceed = true;

console.info('=====data.result===this.content==' + cookModel.result.result.list.material)

} else {

// 接口异常，弹出提示

prompt.showToast({ message: "数据请求失败" })

prompt.showToast({ message: jokeModel.error_code })

}

} else {

// 请求失败，弹出提示

prompt.showToast({ message: '网络异常' })

}

} else {

// 请求失败，弹出提示

prompt.showToast({ message: err.message })

}

})

}

5、解析数据（简单示例）

1.网络请求到的json字符串

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

export

function

getCookTest

() {

return

{

"id"

"8"

"classid"

"2"

"name"

"醋溜白菜"

"peoplenum"

"1-2人"

"preparetime"

"10-20分钟"

"cookingtime"

"10-20分钟"

"content"

"醋溜白菜，是北方人经常吃的一道菜，尤其是在多年前的冬天。那时，没有大棚菜，冬天，家家每天佐餐的基本上都是冬储大白菜，聪明的家庭主妇总是想方设法将这单调的菜变成多种菜式，于是，醋溜白菜被频繁的端上餐桌。"

" 美食不分贵贱，用最平凡的原料、最简单的调料和最普通的手法做出美味的菜肴来才是美食的真谛。"

" 这次，我做的醋溜白菜，近似鲁菜的做法，使个这道菜酸甜浓郁、开胃下饭、老少咸宜。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/115138_46688.jpg"

"tag"

"减肥,家常菜,排毒,补钙"

"material"

: [

{

"mname"

"油"

"type"

"0"

"amount"

"适量"

{

"mname"

"盐"

"type"

"0"

"amount"

"适量"

{

"mname"

"花椒"

"type"

"0"

"amount"

"适量"

{

"mname"

"干红椒"

"type"

"0"

"amount"

"适量"

{

"mname"

"葱"

"type"

"0"

"amount"

"适量"

{

"mname"

"姜"

"type"

"0"

"amount"

"适量"

{

"mname"

"蒜"

"type"

"0"

"amount"

"适量"

{

"mname"

"醋"

"type"

"0"

"amount"

"适量"

{

"mname"

"酱油"

"type"

"0"

"amount"

"适量"

{

"mname"

"糖"

"type"

"0"

"amount"

"适量"

{

"mname"

"淀粉"

"type"

"0"

"amount"

"适量"

{

"mname"

"白菜"

"type"

"1"

"amount"

"380g"

}

"process"

: [

{

"pcontent"

"准备食材。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162550_84583.jpg"

{

"pcontent"

"将白菜斜刀片成薄片。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162551_90620.jpg"

{

"pcontent"

"片切好的白菜帮与菜叶分别入好。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162551_20925.jpg"

{

"pcontent"

"盐、糖、生抽、醋淀粉加少许水调匀备用。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162552_23125.jpg"

{

"pcontent"

"锅中油烧热，先入花椒炒香后捞出。再加入干红椒段略炒。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162552_57046.jpg"

{

"pcontent"

"加入葱姜蒜煸炒香，然后入白菜帮翻炒。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162553_89090.jpg"

{

"pcontent"

"炒至菜帮变软时，加入白菜叶。"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162553_40445.jpg"

{

"pcontent"

"快速翻炒至菜软，勾入碗汁"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162554_92210.jpg"

{

"pcontent"

"使汤汁均匀的包裹在菜帮上即可"

"pic"

"http://api.jisuapi.com/recipe/upload/20160719/162554_29522.jpg"

}

]

}

2.创建相应的对象

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

import

{

CookDetailData

}

from

'./cookDetailModel'

;

export

class

CookModel

{

charge

: string

//返回说明

code

: number

//返回码，1000为查询成功

msg

: string

result

: {

result

: CookModel7

// 笑话

status

: number

//数量

msg

: string

// ok

}

export

class

CookModel7

{

num

: string

//频道

list

: CookDetailData

}

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

import { MaterialData } from './materialModel';

import { ProcessData } from './processModel';

export class CookDetailData {

name: string //

peoplenum: string //

cookingtime: string //

content: string //

pic: string //

tag: string //

material: Array

process: Array

}

参考文档

Text

尺寸设置

边框设置

RichText

Web

项目地址

https://gitee.com/jianguo888/nut-recipes

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