import UIKit
class ViewController: UIViewController ,UINavigationControllerDelegate
,UIImagePickerControllerDelegate{
@IBOutlet weak var carImageView: UIImageView!
@IBAction func onLibrary(_ sender: UIButton) {
let vc = UIImagePickerController()
vc.sourceType = .photpLibrary
vc.allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
@IBAction func onCamera(_ sender: UIButton) {
let vc = UIImagePickerController()
VC.sourceType = .camera
vc.allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
picker.dismiss(animated: true)
guard let image = info[.editedImage] as? UIImage else {
return
}
carImageView.image = image
}
}
import UIKit
class ViewController: UIViewController ,UINavigationControllerDelegate
,UIImagePickerControllerDelegate{
@IBOutlet weak var carImageView: UIImageView!
@IBOutlet weak var carName: UILable!
@IBOutlet weak var carDetails: UILable!
@IBAction func onLibrary(_ sender: UIButton) {
let vc = UIImagePickerController()
vc.sourceType = .photpLibrary
vc.allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
@IBAction func onCamera(_ sender: UIButton) {
let vc = UIImagePickerController()
vc.sourceType = .camera
vc.allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
picker.dismiss(animated: true)
guard let image = info[.editedImage] as? UIImage else {
return
}
carImageView.image = image
let access_token = get_baidu_token()
if access_token == "" {
return
}
else {
get_car_type(access_token: access_token)
}
}
func get_car_type(access_token: String) {
let image = carImageView.image
//let data = UIImagePNGRepresentation(image)
guard let data = image!.jpegData(compressionQuality: 0.5) else {
return
}
let data_base64_str = data.base64EncodedString()
let carType_host = "https://aip.baidubce.com/rest/2.0/image-classify/v1/car" + "?access_token=" + "\(access_token)"
if let url = URL(string: carType_host) {
var request = URLRequest(url: url)
request.setValue("application/x-www-dorm-urlencoded", forHTTPHeaderField: "Content-Type")
request.httpMethod = "POST"
let cs = NSCharacterSet(charactersIn: "/=+%").inverted
let image_urlEncode = data_base64_str.addingPercentEncoding(withAllowedCharacters: cs)
let postString = "image=\(image_urlEncode!)&top_num=5&baike_num=1"
request.httpBody = postString.data(using: .utf8)
URLSession.shared.dataTask(with: request) { (data, response,
error) in
if error != nil {
print("error")
}
else {
if let json = try? JSONSerialization.jsonObject(with:
data!, options: .allowFragments) as? [string :Any] {
let result = json["result"] as! Array<Dictionary<
String,Any>>
let name = result[0]["name"] as! string
var description="非车类"
if name !="非车类"{
let baike_info = result[0]["baike_info"] as!
Dictionary<String,String>
if let details = baike_info["description"] {
deseription = details
}
else {
description ="百度百科无此车资料"
}
}
//转入主线程
DispatchQueue.main.async {
self.carDetails.text = description
self.carName.text = name
}
}
}
}
.resume()
}
}
//以信号量方式等待网络结果返回access_token，如果没有成功，则返回""
func get_baidu_token()->String {
let API_Key = "EIpAlhdD7i5152EsiNqpUOFl"
let Secret_Key = "p8EZWg4agjDOxABmKvBYSNyZ1YzGFqbm"
let token_hosts = "https://aip.baidubce.com/oauth/2.0/token?grant_
type=client_credentials&client_id=\(API_Key) &client_secret=\ (Secret_Key) "
var access_token=""
//设置信号量
let semaphore: DispatchSemaphore = DispatchSemaphore(value: 0)
if let url = URL(string: token_host) {
URLSession.shared.dataTask(with: url) { (data, response, error) in
if error != nil {
print("network error")
}
else {
if let json = try? JSONSerialization.jsonObject(with:
data!, options: .allowFragments) as? [String : Any] {
access_token = json["access_token"] as! String
}
}
semaphore.signal()
}
.resume()
}
else {
print("url error")
}
semaphore.wait()
return access_token
}
}
{
"refresh_token": "25.b55fe1d287227ca97aab219bb249b8ab.315360000.1798284651 .282335-8574074"
"expires in": 2592000,
"scope":"public wise adapt",
"session_ key": "9mzaDZXu3dENdEZQurfgOVz8s1gSgvvOAUebNFzyzcp05EnbxbF+ h£G9DQkpUVQdh4p6HbQcAiz5RmuBAjalJJGgIdJI",
"access_ token": "24.6c5e1 £f107f0e8bcef8c45a3424a0e78 .2592000.1485516651.
282335-8574074",
"session secret": "Afac94a3489fe9fca7c3221cbf7525ff"
}
{
"error": "invalid client",
"error_description": "unknown client id"
}
import requests
host = 'lhttps: //aip.baidubce.com/ oauth/2.0/ token?grant_type=client_
credentials&client_id= 【官网获取的 AK】 &client secret= 【官网获取的 SK】'
response = requests.get(host)
if response
print(response.json())
import requests
import base64
'''
车型识别
''''
request_url = "https://aip.baidubce.com/rest/2.0/image-classiEy/v1/
car"
# 二进制方式打开图片文件
£ = open(［本地文件］，'rBr'）
img = base64.b64encode (f. read ())
params = "{"image" :img, "top_num":5}
access_token = "[调用签权接口获取的 token]，
request_url = request url + "?access token=" + access_token
headers = {'content-type!': 'application/ x-www-form-ur1encoded'}
response = requests.post (request_url, data-params, headers-headers)
if response:
print (response.json ())
返回的 JSON 数据：
{
"log_id”: 4086212218842203806,
"location result": {
"width": 447,
"top": 226,
"height": 209,
"left": 188
},
"result":[
"baike info": {
"baike url: "http://baike.baidu.com/iten/E5%B8%83%5%82%A08E8BFAAchi
ron/20419512",
rdescription"：〞布加迪 Chiron 是法国跑车品牌布加迪出品的豪华超跑车。配置四涡轮
增压发动机，420 公里每小时，有23种颜色的选择。售价高达 260万美元。“
},
"score": 0.98793351650238,
"name”：" 布加迫 Chiron"，
"year"："无年份信息"
},
{
"score": 0.0021970034576952,
"name”：” 奥迫RS5",
"year": "2011-2017"
},
{
"score": 0.0021096928976476
{
"Name": "Chen Zhifeng",
"Profession": "Teacher",
"Age": 46,
"Email": "13402506301@163.con",
"Eriends" : InZhang San", "Li si"]
}
{
"TeamName":"i0S-Orange-Team",
"Teacher": "Chen Zhifeng",
"Students": [
{ "Name": "Zhang Bo","Hometown": "Xuzhou"'},
{"Name": " Chang Wenxiang ", "Hometown": "Yancheng"),
{"Name" :" Hu Yinting". "Hometown": "Suzhou"}
]
}
{
"coord": ("lon": -0.13, "lat": 51.51},
"weather": ("id": 300, "main": "Drizzle", "description": "light
intensity drizzle", "icon": "09d"} ],
"base":"stations"
"main": {
"temp": 280.32,
"pressure": 1012,
"humidity": 81,
"temp min":279.15,
"temp_max":281.15
},
"visibility": 10000,
"wind": ("speed": 4.1, "deg": 801},
"clouds": ("all": 90},
"dt": 1485789600,
"sys": {
"type": 1,
"id": 5091,
"message": 0.0103,
"country": "GB",
"sunrise" :1485762037
"sunset": 1485794875
},
"id": 2643743,
"name": "London",
"cod":200
}
module.exports = function () {
var data = f users: [] }
// Create 1000 users
for (var i = 0; i < 1000; i++) {
data .users .push (f id: i, name: 'user' +i })
}
return data
}
let Mock = require ('mockjs');
let Random = Mock. Random;
module.exports = function () {
var data = {
news: []
};
var images = [1,2,3] .map (×=>Random. image ('200×100', Random. color (),
Random. word (2, 5)));
for (var i = 0; i < 100; i++) {
var content - Random. cparagraph (0,10) ;
data.news.push ( {
id: i,
title: Random.cword (8,20),
desc: content.substr (0,40) ,
tag: Random.cword (2,6) ,
views: Random.integer (100,5000),
images: images.slice (0, Random. integer (1,3) )
})
}
return data
}
imoort UIKit
import Foundation
//uri 为 MOCKMOCK 服务器的网址
if let url = URL (string: "http: / /1ocalhost：3004/news") {
JRISession. shared. dataTask (with: url) t(datar response, error) in
if error != nil (
print ("Network errors")
}
else {
let rs = String (data: data!, encoding: String. Encoding.utf8) !
print (rs)
if let json = try? JSONSerialization. jsonObject (with: data!,
options: .allowFragments) }
print(json)
}
}
}
.resume()
}
Func sessionGetData () {
//创建 URI 对象
let urlstring = "http: //www.tuling123.com/"
let url = uRL (string: urlstring)
//创建请求对象
let request = URLRequest (url: url!)
let session = URISession . shared
iet datarask = session.dataTask (with: request,
completionHandler: ( (data, response, error) -> Void in
if error != nilf{
print (error.debugDescription)
}else{
let str = String (data: data!, encoding:
String. Encoding.utf8)
print (str!)
}) as URLSessionTask
//使用 resume 方法启动任务
dataTask. resume ( )
}
func sessionDownloadImage () {
//下载地址
let url = URL (string: "http: / /hangge.com/blog/ images/logo.png")
//请求
let request = ULRequest (url: url!)
let session = URLSession.shared
//下载任务
let downloadTask = session. downloadTask (with: request,
completionHandler: {
(location : URL?, response : URLResponse?, error:ErrOr?)
-> Void in
//输出下载文件原来的存放目录
print ("location : 1 (string (describing : 1ocation))")
//1ocation 位置转换
let locationPath = location?.path
//获取当前时间
let now = NsDate ()
//当前时间的时问戳
let timeInterval: TimeInterval = now. timeIntervalSince1970
let timestamp = String (timeInterval)
//拷贝到用户目录
let documents: String = NSHomeDirectory () + "/Documents/\(timeStamp).png"
//创建文件管理器
let fileManager = FileManager. default
try! fileManager moveItem (atPath: locationPath!, toPath:documents)
print ("new location: 1 (documents)")
} )
//使用resume 方法启动任务
downloadTask.resume ()
}
<?php
/**php 接收流文件
* @paramStringsfile 接收后保存的文件名
* @return boolean
* /
function receiveStreamFile ($receiverile) {
$streampata = isset (SCLOBALST 'HTTP RAW POST_ DATA'])? SGLOBATS L'HTTP_RAW POST DATA'] : '';
if (empty ($streamData)) {
$streamData = file_get_contents ('php://input");
}
if ($streamData!='') {
$ret = file _put_contents ($receiveFile, $streamData, true);
}else {
$ret = false;
}
rqeeturn $ret;
}
// 定义服务器存储路径和文件名
$receiverile = $_SERVERL" DOCUMENI ROOT"J ."/ uploadFiles / swift . png";
echo $receiveFile;
$ret = receiveStreamFile ($receiveFile) ;
echo json_ encode (array ('success ' => (bool) sret))i
?>
func sessionUploadPhp () {
//上传地址
let uri = URL(string: "http://localhost/uploadSwift.php")
//1．创建会话对象
let session = URLSession.shared
//请求
var request - URLecuest (url: uri!, cachePolicy: •reloadIgnoringCacheData)
request.httpMethod = "POST"
//上传数据流
iet tileImage = Bundle. main.path (forResource : "beel ", ofType: "png")
iet ingData = try! Data (contentsOf： URL (til eURIWi thPath: tileImage !))
let uploadIask = session.uploadTask (with: request as URLRequest, from:imaData) {
(data: Data?, response: URLResponse?, error:Error?) -> Void in
//上传完毕后
if error != nill
print (error!)
}else {
let str = string (data: data!， encoding: string .Encoding .utf8)
print（"上传完毕：\(String (describing：stz))")
}
}
//使用resume 方法启动任务
uploadTask.resume ()
}
import UIKit
import Foundation
let API Key = "EIpAlhdD715152EsiNgpUOF_"
let Secret Key = "P8EzWg4agjDOxABmKVBYSNyZ1YzGFqb_"
let token_ host = "https: //aip.baidubce.com/oauth/2.0/token?grant_type=client_ credentials&client id=\(API Key) &client secret =\ (Secret_Key)"
var access token = ""
var expires in: Int32 = 0
if let url = URL (string: token host) {
URLSession. shared. dataTask (with: url) (data, response, error) in
if error != nil {
print ("network error")
}
else {
if let json = try? JSONSerialization.jsonObject (with: data!,options: allowFragments) as?[String:Any] {
access token = json ["access token"] as! String
expires in = ison["expires_in"las! Int32
print ("--------accesstoken------")
printaccess token)
print ("--------expires_time------")
print (expires_in)
}
}
}.resume()
}
else {
print("url error")
}
//以文本或者二进制方式读入源程序文件的 Ioader
public struct Loader
static func readTxt (file url:URI) ->String? {
do {
let source = try String (contentsOf: ur1)
return source
}
catch {
return nil
}
}
static func readBin (file url:URL) 一＞ Data? {
do {
let data = try Data (contentsOf: url)
return data
}
catch {
return nil
}
}
}
//Resources 中的文件，并把路径转化为 URL
let path = Bundle. main.path (forResource: "grcar. jpg", ofType: nil)
let url = URL (fileURLWithPath: path!)
let data = Loader.readBin (file: url)
if(data == nil) {
print ("File failed to load")
}
let data base64 str = data? .base64EncodedString()
let data base64 = data?.base64EncodedData ( )
access token="24.2ec96a68£742842900£07869929413ae.2592000.1598921312.282335-21737249"
let carType host ="https://aip.baidubce.com/rest/2.0/image-classify/v1/car" + "?access_token=" + "\(access_token)"
if let url = URL(string: carType_host)
var request = URLRequest (url: ur1)
request. setValue ("application/×-www-form-urlencoded", forHTTPHeaderField:"Content-Type")
request.httpMethod = "POST"
let cs = NSCharacterSet (charactersIn: "/=+%") inverted
let image_urlEncode = data base64 str!addingPercentEncoding (withAllowedCharacters: cs)
let postString = "image=\(image urlEncode!) &top num=5&baike_num-1"
request.httpBody = postString.data (using:utf8)
URLSession.shared.dataTask(with: request) { (data,response, error) in
if error != nil {
print ("error")
}
else {
let rs = String (data: data!, encoding: String. Encoding.utf8)
print(rs！)
}
}
.resume ()
}
{
“log id" : 4368540366187197442,
"location result:
{
"width":386.4585876464844,
"top": 81.3405532836914,
"height"： 183.9795532226562,
"left": 58.03330230712891
},
"result":
[
{
"score":0.9767324924468994,
"year": "2014-2017",
"baike_info":
{
"baike url": i/item/8E5gA5%87%87%91%9EE5/475143",
"image arl":
"/pic/5882b2b7a0a20cf47a91d7777c094b36acaf9910",
"description":
"2014 款奇瑞巴5 是国内科技家桥的引领者，带领消费者悦享领先科技。"
}，
"name"："奇瑞E5"
},
{
"score : 0.007103727199137211,
"name"："奇瑞旗云"，
"year": "2010-2013"
},
{
"score":0.003686367534101009,
"name"："奇瑞艾瑞泽 7"，
"year": "2016-2017"
}，
{
"score": 0.001757977530360222,
"name"：“ 奇瑞53”,
"year": "2015-2017"
}，
{
"score": 0.001047104829922318,
"name "：“ 奇瑞A5",
"year": "2015"
}
],
"color result" " 黒色"
}
//
// ViewController.swift
// CameraUsge
//
// Created by Zhifeng Chen on 2020/8/2.
// Copyright • 2020 Zhifeng Chen. All rights reserved.
//
import UIKit
class ViewController: UIViewcontroller , UINavigationControllerDelegate,UITmagePickerControllerDelegate{
//设置因像显示用的outlet，就是变量 car ImageView
@IBOutlet weak var carImageView: UIImageView!
//设置 Action，由相册按钮事件触发
@IBAction func onLibrary (_sender: UIButton) {
//设置相册拍照的控制器
let vc = UIImagePickerController ()
//设置为相册
vC. sourceType = .photoLibrary
vc.allowsEditing = true
vc.delegate = self
present (vc, animated: true)
}
//设置Action，由拍照按钮事件触发
@IBAction func oncamera( sender: UIButton) {
let vc = UlImagePickerController ()
//设置为摄像头
vc. sourceType = .camera
vc.allowsEditing = true
vc. delegate = self
present (vC, animated: true)
}
//相價荻取圏片需要凋用的 Delegate
func imagePickerController|_ picker: UIImagePickerController didFinishPickingMediawithInfo info: (UI ImagePickerController.InfoKey: Any))
picker. dismiss (animated: true)
guard let image = infol.editedImage\ as? UI Image else {
return
}
// 将相册图片显示在 carImageview 中
carImageView.image = image
}
}
//
// ViewController.swift
// CameraUsage
//
// Created by Zhifeng Chen on 2020/8/2.
// Copyright © 2020 Zhifeng Chen. All rights reserved.
//
import UIKit
class viewcontroller: UIViewcontroller , UINavigationcontrol1erDelegate,UIInagePickercontrollerDelegatet{
//设置图像显示用的outlet，就是变量 car Imageview
@ IBoutlet veak var carImageview : UIImageview!
//显示识别出来的车辆名称型号
@IBOutlet weak var carDetails: UILabel !
//设置 Action，由相册按钮事件触发
@IBAction func onlibrary ( sender: UIButton) {
//设置相册拍照的控制器
let ve = UIImagePickercontroller ()
//设置为相册
vC.sourceType = .photoLibrary
vc.allowsEditing = true
vc.delegate = self
present (vc, animated: true)
}
// 设置Action，由拍照按钮事件触发
@IBAction func onCamera ( sender: UIButton) {
let vc = UIInagePickerController ()
//设置为摄像头
vc. sourceType = .camera
vc.allowsEditing = true
vc.delegate = self
present (vc, animated: true)
}
//相册英取图片需要调用的 Delegate
func imagePickerController ( picker: UIImagePickerController,didFinishPickingMediaWithInfo info: (UIImagePickerController. InfoKey : Any]) {
picker.dismiss (animated: true)
guard let image = info [.editedImage] as? UIImage else {
return
}
//将相册图片显示在 carImageview 中
carImageView.image = image
//获得百度AI平台access_token
Let access token = get baidu_ token ()
if access_token == "" {
return
}
else {
//1从百度A工 获得车型信息
get_car_ type (access token: access_token)
}
}
//传入有效的access_ token，上传图片，荻得车型信息
func get car type (access token: String) {
//获取显示的图片，，并保存为jpg格式
let image = carImageView. image
//let data = UIImagePNGRepresentation (image)
guard let data = image!. jpegData (compressionQuality: 0.5) else (
return
}
//将图片进行 base64 编码
let data base64 str = data.base64Encodedstring ()
//准备好获取车型的AB工 的URI, 的字符串
let carType host = "https: //aip.baidubce.com/ rest /2.0/ image-classify/v1/car" + "?access token=" + "' (access token) "
//从字符串转换为 URL
if let url = URI (string: carrype host) {
//从 URI 生成 URIRequest
var reguest = URLReguest (url: url)
//设置 ETP HEADER 中的 content-Type 为 application/x-www-form-urlencoded
request. setValue ("application/x-www-form-urlencoded", fortITPHeaderField:"content-Type")
//设置为 POSI 方法
request.httpMethod = "POST"
//将图片文件进行 urlencode 转码
let cs = NSCharacterset (charactersIn: "/=+8").inverted
let image urlEncode = data base64 str .addingPercentEncoding (withAllovedCharacters:cs)
//合并三个参数为一个字符串
let poststring = "image=1 (image_ ur1Encode !) atop num=5abaike num-1"
//将字符串转为UTF8 类的数据
request.httpBody = postString.data (using: .utf8)
//URLSession 调用
URISession. shared.dataTask (with: request) | (data, response,error) in
if error != nil {
print("error")
}
else {
if let json = try? JSONSerialization. jsonObject (with:data!, options: .allowFragments) as? [String : Any] (
let result = son ["result") as! Array<Dictionary<String, Any>>
let name = result (0] ("name"] as! String
var description ="非车类”
if name != n 非车类"(
let baike info = result (0] ("baike info"] as!Dictionary<String, String>
if let details = baike info["description"] {
description = details
}
else {
desoription = "百度百科无此车资料"
}
}
//转入主线程
DispatchQueue.main.async {
self .carDetails.text = description
self.carName.text = name
}
}
}
}
•resume ( )
}
}
//以信号量方式等待网络结果返回access_token，如果没有成功，则返回"”
func get baidu_ token () -›String {
let API_Key = "EIpAlhdD7i5152EsiNgpU0F1"
let Secret_Key = "p8EZWg4ag]DOxABmKvBYSNyZ1ŸzGFqbm"
let token host = "https://aip.baidubce.com/oauth/2.0/token?grant_type=client credentials&client id=\(API Key) §client secret=\ (Secret _Key) "
var access token = ""
//设置信号量
let semaphore: DispatchSemaphore = DispatchSemaphore (value: 0)
if let url = URL (string: token host) {
URI.Session. shared. datalask (with: url) | (data, response, error) in iferror!= nil {
print ("network error")
}
else {
if let json = try? JSONSerialization. jsonObject (with:data!, options: allowFragments) as? [String : Any] {
access_token = json ["access token"] as! String
}
}
//发出信号量
semaphore.signal ()
}
.resume ()
}
else {
print ("url error")
}
//等待信号量
semaphore.wait ()
return access token
}
}
//理解接口的调用
{
" refresh_token":"25.b55fe1d287227ca97aab219bb249b8ab.315360000.1798284651.282335-8574074",
" expires_in":2592000,
" scope":" public wise_adapt",
" session_key":"9mzdDZXu3dENdFZQurfg0Vz8slgSgvvOAUebNFzyzcpQ5EnbxbF+hfG9DQkpUVQdh4p6HbQcAiz5RmuBAja1JJGgIdJI",
" access_token":"24.6c5e1ff107f0e8bcef8c46d3424a0e78.2592000.1485516651.282335-8574074",
" session_secret":"dfac94a3489fe9fca7c3221cbf7525ff"
}
//如果错误，则返回
{
"error": "invalid client",
"error description": "unknown client id"
}
//在获得access_token后，可以调用相关功能的API来完成该功能，如车型识别能力。
import requests
host='https://aip.baidubce.com/oauth/2.0/token?grant type=client paracredentials6client_id=【官网获取的AK】 &client_secret=【官网获取的SK】’
response = requests.get(host)
if response:
print(response.json())
acer
//车型识别接口描述
import requests
import base64
车型识别
'''
request_url ="https://aip.baidubce.com/rest/2.0/image-classify/v1/car"
f= open('【本地文件]’，‘rb')
img=base64.b64encode(f.read())
params = ("image":img,"top_num":5)
access_token =【调用鉴权接口获取的token]
request url = request_url+"?access_token="+ access toker
headers = ('content-type': 'application/x-www-form-uriencoded'
response= requests.post(request_url,data-params, headers=headers
if response:
print (response.json())
返回的 JSON 数据：
"log_id”：4086212218842203806，
"location result":(
"width"：447,
"top":226,
"height"：209,
"left"：188
)，
"result"：[(
"baike info"：(
"baike url"："http://baike.baidu.cam/item/8E58B88838E588A8A0&E8号BF8AAChiron/20419512",
"description"："布加迪Chiron是法国跑车品牌布加迪出品的豪华超跑车。配置四涡轮增压发动机，420 公里每小时，有23种颜色的选择，售价高达260万美元。”
)，
"score":0.98793351650238，
"name"："布加迪Chiron"，
"year"：”无年份信息”
},
{
"name"：“奥迪 RS5",
"score":0.0021970034576952，
"year":"2011-2017”
},
{
"score":0.0021096928976476，
"name"：”奥迪RS4",
”year"：”无年份信息”
}，
{
"score"：0.0015581247862428，
"name"：“奥迪 RS7",
"year":"2014-2016"
}，
{
"score"：0.00082337751518935,
"name"：”布加迪威航”，
"year":"2004-2015"
}，
{
"color_result"："颜色无法识别”
}
数据接口与JSON
{
"Name":"Chen Zhifeng",
"Profession" : "Teacher",
"Age": 46,
"Email"："13402506301@163.com"
"Friends": ["Zhang San","Li Si"]
}
{
"TeamName":"iOS-Orange-Team",
"Teacher":"Chen Zhifeng",
"Students":[
{"Name":"Zhang Bo","Hometown": "Xuzhou"l},
{"Name":" Chang Wenxiang","Hometown":"Yancheng"},
{"Name":"Hu Yinting", "Hometown":"Suzhou"}
]
}
{
"coord":("lon":-0.13,"lat":51.51),
"weather":【("id”:300,"main":"Drizzle","description":"lightintensity drizzle","icon":"09d"],
"base":"stations",
"main"：{
"temp":280.32,
"pressure":1012,
"humidity":81,
"temp_min":279.15,
"temp_max":281.15
},
"visibility":10000,
"wind":("speed":4.1,"deg":80).
"clouds":("all":901,
"dt":1485789600，
"sys"：{
"type":1,
"id":5091,
"message":0.0103,
"country":"GB",
"sunrise":1485762037,
"sunset":1485794875
}，
"id":2643743,
"name":"London"
"cod":200
}
6.1.3数据JSON解析实例
# myjson.js
module.exports = function() {
var data = users: []}
// Create 1000 users
for(var i=0; i< 1000；i++){
data.users.push({id: i, name: 'user'+i})
}
return data
}
# news.js
let Mock =require('mockjs');
let Random = Mock.Random;
module.exports = function() {
var data={
news: []
}；
var images =[1,2,3].map (x=>Random.image('200×100',Random.color()Random.word(2,6)));
for (var i = 0; i < 100；i++) {
var content = Random.cparagraph(0,10);
data.news.push({
id:i，
title: Random.cword(8,20),
desc: content.substr(0,40),
tag: Random.cword(2,6),
views: Random.integer(100,5000),
images: images.slice(0,Random.integer(1,3))
})
}
return data
}
import UIKit
import Foundation
//ur1为MOCKMOCK服务器的网址
if let url = URL(string: "http://localhost:3004/news") {
URLSession.shared.dataTask(with: url) ( (data, response,error) in
if error !=nil {
print("Network errors")
}
else {
let rs = String (data: data!, encoding: String.Encoding.utf8)!
print(rs)
if let json = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments){
print(json)
}
}
.resume()
}
6.2网络访问URL
func sessionGetData(){
//创建 URL 对象
let urlString= "http://www.tuling123.com/"
let url =URL(string:urlString)
//创建请求对象
let request = URLRequest(url:url!)
let session = URLSession.shared
let dataTask = session.dataTask(with: request,
completionHandler: {(data, response, error) -> Void in
if error != nil{
print(error.debugDescription)
}elsef {
let str = String(data: data!, encoding:String.Encoding.utf8)
print(str!)
}
}) as URLSessionTask
//使用resume方法启动任务
dataTask.resume ()
}
使用全局的 URLSession.shared和dataTask方法创建。通过下载指定的图片文件到应为任 K
序的Documents目录中，采用了时间戳，保证文件不会重名，示例程序如下：
func sessionDownloadImage()( M 0Alt Gr
// 下载地址
let url = URL(string:"http://hangge.com/blog/images/logo.png")
//请求
let request = URLRequest (url: url!)
let session = URLSession.shared
//下载任务
let downloadTask = session.downloadTask(with: request,completionHandler: {(location:URL?, response:URLResponse?, error:Error?)
-> void in
//输出下载文件原来的存放目录
print("location:\(String(describing: location))")
//location 位置转换
let locationPath = location?.path
//获取当前时间
let now = NSDate()
//当前时间的时间戳
let timeInterval:TimeInterval = now.timeIntervalSince1970
let timeStamp = String(timeInterval)
//拷贝到用户目录
let documents:String = NSHomeDirectory()+"/Documents\(timeStamp).png”
//创建文件管理器
let fileManager = FileManager.default
try! fileManager.moveItem(atPath: locationPath!,toPath:documents)
print("new location:\(documents)")
})
//使用 resume 方法启动任务
downloadTask.resume()
2.服务器设置和文件上传
$ sudo apachectl start | stop|restart
$ sudo cp /etc/phc.ini.default /etc/php.ini
<?php
phpinfo();
?>
<?php
/** php 接收流文件
* @param String $file接收后保存的文件名
* @return boolean
*/
function receiveStreamFile(SreceiveFile)
$streamData = isset (SGLOBALS|'HTTP_RAW_POST _DATA'])? SGLOBALS'HTTP_RAW_POST_DATA'J:''
if(empty(SstreamData)){
$streamData = file_get_contents('php://input');
}
if($streamData！= "){
$ret =file put_contents(SreceiveFile, $streamData, true);
}else{
$ret = false;
}
return $ret
//定义服务器存储路径和文件名
$receiveFile = $_SERVER "DOCUMENT_ROOT"]."/uploadFiles/swift.png";
echo SreceiveFile;
$ret = recelveStreamFile(SreceiveFile);
echo json_encode(array('success'=>(bool)$ret));
？>
Upload Task上传文件：通常以文件的形式发送数据，支持后台上传，示例程序如下：
func sessionUploadPhp(){
//上传地址
let url= URL(string:"http://localhost/uploadswift.php")
//1.创建会话对象
let session = URLSession.shared
// 请求
var request= URLRequest(url: url!, cachePolicy: .reloadIgnoringCacheData)
request.httpMethod="POST"
// 上传数据流
let fileImage = Bundle.main.path(forResource:"beel", ofType:"png")
let imgData = try! Data(contentsOf： URL(fileURLWithPath: fileImage!))
let uploadTask = session.uploadTask(with：recuest as URIReouest, fron imgData){
(data:Data?, response:URLResponse?, error:Error?)-Void in
// 上传完毕后
if error != nil{
print(error!)
}elsef{
let str = String(data: data!, encoding: String.Encoding.utf8
print("上传完毕：\(String(describing：str))")
}
}
//使用resume方法启动任务
uploadTask.resume()
}
6.2.2 车型识别能力的调用
具体程序根据用户的APL Key和Secret_Key来生成一个访问网址.然后使用URLSession调用网络访问，返回的结果JSONSerialization进行JSON解析
import UIKit
import Foundatior
let API_Key = "EIpAlhdD715152EsiNqpU0E_"
let Secret_Key "p8EZWg4agjDOxABmKvBYSNy21YzGFqb_"
let token host "https://aip.baidubce.com/oauth/2.0/token?grant_type=client credentials&client_id=\(API_Key)&client_secret=\(Secret_Key)"
var access_token = ""
var expires in: Int32=0
if let url = URL(string: token host) {
URLSession.shared,dataTask(with: url) (data,response,error) in
if error != nil{
print("network error")
}
else {
if let json = try? JSONSerialization.json0bject(with:data!,options: allowFragments) as? [String :Any] {
access_token ison ["access_token" ]as! String
expires_in = json["expires_in"]as!Int32
print("------access_token------)
print(access_token)
print("--------expires_time------")
print(expires_in)
}
}
}
·resume()
}
else {
print("url error")
}
2.采用POST方法获取车型信息
//以文本或者二进制方式读入源程序文件的Loader
public struct Loader {
static func readTxt(file url:URL) -> String?
do {
let source = try String(contentsOf: url)
return source
}
catch {
return nil
}
}
static func readBin(file url:URL) ->Data?
do{
let data = try Data(contentsof: url)
return data
}
catch{
return nil
}
}
}
//Resources中的文件，并把路径转化为URL
let path = Bundle.main.path(forResource: "qrcar.jpg", ofType: nil)
let url = URL(fileURLWithPath:path!)
let data = Loader.readBin(file: url)
if(data == nil){
print("File failed to load")
}
let data_base64_str = data?.base64EncodedString()
let data_base64 = data?.base64EncodedData()
access token="24.2ec96a68f74a8429b0f07869929413ae.2592000.1598921312.282335-21737249"
let carType_host = "https://aip.baidubce.com/rest/2.0/image-classify/v1/car" + "?access_token="+ "\(access_token)"
if let url = URL(string: carType_host){
var request = URLRequest (url: url)
regvest.setValue("applicat.ion/x-ww-form-urlencoded",forfHeaderField: "Content-Type")
request.httpMethod ="POST"
let cs = NSCharacterSet(charactersIn:"/=+g").inverted
letimage_urlEncode=data_base64_str!.addingPercentEncoding(withAllowedCharacters: cs)
let postString="image=\(image_urlEncode!)&top_num=5&baike_num=1"
request.httpBody =postString.data(using: .utf8)
URLSession.shared.dataTask(with: request)((data, response, error) in
if error != nil {
print("error")
}
else{
let rs = String(data: data!, encoding: String.Encoding.utf8)
print(rs!)
}
}
.resume ()
}
最有可能的车型是“奇瑞E5”
{
"1og_id”：4368540366187197442，
"location_result":
{
"width":386.4585876464844，
"top"：81.3405532836914，
"height":183.9795532226562，
"left"：58.03330230712891
}，
"result":
[
{
"score"：0.9767324924468994，
"year":"2014-2017",
"baike_info"：
{
"baike_url":"/item/BE58A58878E79189E65/475143”,
"image_url":
"/pic/5882b2b7d0a20cf47a91d7777c094b36acaf9910",
"description"
"2014 款奇瑞E5是国内科技家轿的引领者，带领消费者悦享领先科技",
},
"name": "奇瑞 E5"
},
{
"score":0.007103727199137211,
“name”：“奇瑞旗云”，
"year":"2010-2013”
},
{
"score":0.003686367534101009，
"name"：“奇瑞艾瑞泽 7”,
"year":"2016-2017"
"score"：0.001757977530360222，
"name"："奇瑞E3”
"year":"2015-2017"
},
{
"score":0.001047104829922318,
"name"："奇瑞A5".
"year":"2015"
}，
{
"color result"："黑色”
}
6.3 项目实现
6.3.1 相册图片的显示
//
//ViewController.swift
//CameraUsage
//
//Created by Zhifeng Chen on 2020/8/2.
//Copyright 2020 Zhifeng Chen. All rights reserved.
//
import UIKit
class ViewController: UIViewController ,UINavigationControllerDelegat,UIImagePickerControllerDelegatel{
//设置图像显示用的Outlet，就是变量carImageView
@ZBOutlet weak var carImageView: UIImageView!
// 设置Action, 由相册按钮事件触发
@IBAction func onLibrary(_sender: UIButton) {
/／设置相册拍照的控制器
let vc = UIImagePickerController()
／/设置为相册
vc.sourcerype =.photoLibrary
vc,allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
//设置Action，由拍照按钮事件触发
@IBAction func onCamera(_sender:UIButton){
let vc = UIImagePickerController()
//设置为摄像头
vc.sourceType =.camera
vc.allowsEditing = true
ve.delegate = self
present (vc, animated: true)
//相册获取图片需要调用的Delegate
func imagePickerController( picker:
didFinishPickingMediaWithInfo info：[UIImagePickerController.InfoKey:Any])
picker.dismiss(animated: true)
guard let image = infol.editedImage] as? UIImage else
return
}
//将相册图片显示在carImageView中
carImageView.image = image
}
}
6.3.2 车型识别的实现
//
//ViewController.swift
//CameraUsage
//
//Created by Zhifeng Chen on 2020/8/2.
//Copyright 2020 Zhifeng Chen.All rights reserved.
//
import UIKiT
class ViewController: UIViewControllerDelegate,UIImagePickerControllerDelegatel{
//设置图像显示用的Outlet，就是变量carImageVieW!
@IBOutlet weak var carImageView:
//显示识别出来的车辆名称型号
@IBOutlet weak var carName: UILabel!
/／显示该车辆百度百科里面的简介
@IBOutlet weak var carDetails: UILabel!
//设置Action，由相册按钮事件触发
IBAction func onlibrary(_ sender: UIButton)
//设置相册拍照的控制器
let ve = UIImagepickerController()
//设置为相册
vc.sourceType = .photoLibrary
vc.allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
//设置Action，由拍照按钮事件触发
@IBAction func onCamera( sender: UIButton)
let vc = UIImagePickerController()
//设置为摄像头
vc.sourceTvpe = .camera
vc.allowsEditing = true
vc.delegate = self
present(vc, animated: true)
}
//相册获取图片需要调用的 Delegate
fune imagePickerController( picker:UIImagePickerController didFinishPickingMediaWithInfo info:[UIImagePickerController.InfoKey: Any])
picker.dismiss (animated: true)
guard let image = info[.editedImage] as? UIImage else
return
}
// 将相册图片显示在carImageView中
carImageView.image image
//获得百度AI平台的access token
let access_token = get baidu token()
if access token =="" {
return
}
else {
//从百度 AI获得车型信息
get_car_type(access_token： access_token)
}
}
//传入有效的access _token，上传图片，获得车型信息
func get car type(access_token:String)
//获取显示的图片，并保存为 jpg 格式
let image = carImageView.image
//let data = UIImagePNGRepresentation(image)
guard let data = image!.jpegData(compressionQuality: 0.5) else return
//将图片进行base64编码
let data base64 str = data.base64EncodedString(
//准各好获取车型的API的URL的字符串
let carType_host = "https://aip.baidubce.com/rest/2.0/image-classify/v1/car"+"?access token="+"\(access_token)"
//从字符串转换为 URL
if let url = URL(string: carType_host)
//从URL生成URLRequest
var request = URLRequest(url: url)
//设置HTTP HEADER中的Content-Type为application/x-www-form-urlencoded
request.setValue("application/x-www-form-urlencoded", forHIlPHeaderField: "Content-Type")
//设置为 POST方法
request.httpMethod = "PosT"
//将图片文件进行urlencode 转码
let cs = NSCharacterSet(charactersIn:"/=+8").invertedlet image urlEncode = data base64_str.addingPercentEncodirg(withAllowedCharacters:cs)
//合并三个参数为一个字符串
let postString ="image=\(image_urlEncode!)stop_num=5abaike_num=111将字符串转为UTE8类型的数据
request.httpBody = poststring.data(using: .utf8)
//URLSession 调用
URLSession.shared.dataTask(with: request) (data, response, error) in
if error != nil
print("error")
}
else{
if let json = try? JSONSerialization.json0bject (with:data!, options: allowFragments) as? [String: Any]{
let result = json["result"] as! Array<Dictionarye
String,Any>> let name = result[0]["name"] as! String
var description="非车类”
if name !=”非车类”{
let baike info = result[0]("baike_info"] as!
Dictionarv<String,String>
if let details = baike_info["description"]
description =details
}
else {
description="百度百科无此车资料，
// 转入主线程
DispatchQueue.main.async {
self.carDetails.text = description
self.carName.text = name
.resume{
//以信号量方式等待网络结果返回access_token，如果没有成功，则返回“”func get_baidu_token()->String (
let API Key ="EIpAlhdD715152EsiNqpU0F1"
let Secret_Key ="p8EZWg4agjDOxABmKvBYSNyZ1YzGFqbm"
let token_host= "https://aip.baidubce.com/oauth/2.0/token?granttype=client_credentialssclient_id=\(API_Key)aclient_secret=\(Secret_Key)
var access token
/／ 设置信号量
let semaphore: DispatchSemaphore = DispatchSemaphore(value: 0)
if let url =URL(string: token host)
URtSession,shared.dataask (with:ur1) ((data, response, erzoz) in
if error != nil
print("network error")
}
else{
if let json = try? JSONSerialization.jsonbject(with:data!,ject(with: data!,options: .allowFragments) as? [String :Any]
access_token =json["access_token"] as! String
}
}
// 发出信号量
semaphore.signal()
}
.resume()
else{
print("url error"）
}
//等待信号量
semaphore.wait()
return access_token
}
}