一. UIWebView：
// 工厂类中存储cookie的方法
+ (void)saveCookies {
// 创建一个可变字典存放cookie
NSMutableDictionary *fromappDict = [NSMutableDictionary dictionary];
[fromappDict setObject:@"fromapp" forKey:NSHTTPCookieName];
[fromappDict setObject:@"ios" forKey:NSHTTPCookieValue];
// kDomain是公司app网址
[fromappDict setObject:kDomain forKey:NSHTTPCookieDomain];
[fromappDict setObject:kDomain forKey:NSHTTPCookieOriginURL];
[fromappDict setObject:@"/" forKey:NSHTTPCookiePath];
[fromappDict setObject:@"0" forKey:NSHTTPCookieVersion];
// 将可变字典转化为cookie
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:params];
// 获取cookieStorage
NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage]
// 存储cookie
[cookieStorage setCookie:cookie];
}
UIWebView使用时间较长，只要在cookieStorage中设置了相应的cookie，每次就会自动带上；
但是这样的弊端是随着与H5的交互增加，Cookie占用的空间越来越大，每次交互都夹带大量的cookie，不仅增加服务器端压力，也浪费用户的流量。比如每次交互都夹带5kb的cookie内容，但是真正用到的只有两三百字节。
二. WKWebView
WKWebView相比于UIWebView：
速度快了一倍，内存却减少为原来的一半；
cookie不再是自动携带，需要手动设置；
交互更加顺畅，比如app底部四个tabBar也都是网页的，在UIWebView下点击，整个H5页面都会闪白一下，但是在WKWebView下点击，四个tabBar效果与原生app效果更加类似，不会有闪白现象。
增减了一些代理方法，更方便的进行协议拦截和进度条展示
1.在创建的时候存放到WKUserScript中进行添加cookie
WKWebViewConfiguration *webConfig = [[WKWebViewConfiguration alloc] init];
// 设置偏好设置
webConfig.preferences = [[WKPreferences alloc] init];
// 默认为0
webConfig.preferences.minimumFontSize = 10;
// 默认认为YES
webConfig.preferences.javaScriptEnabled = YES;
// 在iOS上默认为NO，表示不能自动通过窗口打开
webConfig.preferences.javaScriptCanOpenWindowsAutomatically = NO;
// web内容处理池
webConfig.processPool = [[WKProcessPool alloc] init];
// 将所有cookie以document.cookie = 'key=value';形式进行拼接
#warning 然而这里的单引号一定要注意是英文的，不要问我为什么告诉你这个(手动微笑)
NSString *cookieValue = @"document.cookie = 'fromapp=ios';document.cookie = 'channel=appstore';";
// 加cookie给h5识别，表明在ios端打开该地址
WKUserContentController* userContentController = WKUserContentController.new;
WKUserScript * cookieScript = [[WKUserScript alloc]
initWithSource: cookieValue
injectionTime:WKUserScriptInjectionTimeAtDocumentStart forMainFrameOnly:NO];
[userContentController addUserScript:cookieScript];
webConfig.userContentController = userContentController;
WKWebView *wkWebView = [[WKWebView alloc] initWithFrame:frame configuration:webConfig];
wkWebView.UIDelegate = wkWebView;
wkWebView.navigationDelegate = wkWebView;
2.加载某个url的时候添加cookie
如果WKWebView在加载url的时候需要添加cookie，需要先手动获取当前NSHTTPCookieStorage中的所有cookie，然后将cookie放到NSMutableURLRequest请求头中
- (void)loadRequestWithUrlString:(NSString *)urlString {
// 在此处获取返回的cookie
NSMutableDictionary *cookieDic = [NSMutableDictionary dictionary];
NSMutableString *cookieValue = [NSMutableString stringWithFormat:@""];
NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [cookieJar cookies]) {
[cookieDic setObject:cookie.value forKey:cookie.name];
}
// cookie重复，先放到字典进行去重，再进行拼接
for (NSString *key in cookieDic) {
NSString *appendString = [NSString stringWithFormat:@"%@=%@;", key, [cookieDic valueForKey:key]];
[cookieValue appendString:appendString];
}
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString]];
[request addValue:cookieValue forHTTPHeaderField:@"Cookie"];
[self loadRequest:request];
}
3.AFNetworking
AFNetworking存取cookie就比较常见了，话不多说，都在代码里了
//Cookie生成的有两个途径，一个是访问一个网页，这个网页返回的HTTP头中有Set-Cookie指令进行Cookie的设置，这里Cookie的本地处理其实是由WebKit进行的;还有一种途径就是客户端通过代码手动设置Cookie。
NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
[cookieProperties setObject:@"name" forKey:NSHTTPCookieName];
[cookieProperties setObject:@"value" forKey:NSHTTPCookieValue];
[cookieProperties setObject:@"www.taobao.com" forKey:NSHTTPCookieDomain];
[cookieProperties setObject:@"/" forKey:NSHTTPCookiePath];
[cookieProperties setObject:@"0" forKey:NSHTTPCookieVersion];
[cookieProperties setObject:@"30000" forKey:NSHTTPCookieMaximumAge];
NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:cookieProperties];
[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
// 获取AFHTTPRequestOperationManager
AFHTTPRequestOperationManager *operationManager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer.HTTPShouldHandleCookies = YES;
// 创建可变字典用于存放Cookie
NSMutableDictionary *cookieDic = [NSMutableDictionary dictionary];
// 存放新添加的cookie
#warning 单个的Cookie还好，但是楼主在工厂类方法中拼接了一个包含6个设备信息的value值，最后忘记加分号了，测试也没测出来
#warning 因为不影响功能，但是后面的cookie就自动拼接上了，H5那边也识别不到，险造成重大事故(涉及金融。。)，望后来者看到，提前做好准备(就凭这个坑，你得给我个赞)
NSMutableString *cookieValue = [NSMutableString stringWithFormat:@"fromapp=ios;"];
// 获取
NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [cookieJar cookies]) {
[cookieDic setObject:cookie.value forKey:cookie.name];
}
// cookie重复，先放到字典去重，再进行拼接
for (NSString *key in cookieDic) {
NSString *appendString = [NSString stringWithFormat:@"%@=%@;", key, [cookieDic valueForKey:key]];
[cookieValue appendString:appendString];
}
// 将cookie存到请求头中
[operationManager.requestSerializer setValue:cookieValue forHTTPHeaderField:@"Cookie"];
// 拼接url地址
NSString *urlStr = [NSString stringWithFormat:@"%@%@", kHostIP, kPath];
// 设置参数字典
NSDictionary *paraDict = @{
@"key" : value
};
// 发送请求，处理结果
[operationManager POST:urlStr parameters:paraDict success:^(AFHTTPRequestOperation * _Nonnull operation, id _Nonnull responseObject) {
NSLog(@"responseObject-->%@", responseObject);
} failure:^(AFHTTPRequestOperation * _Nullable operation, NSError * _Nonnull error) {
NSLog(@"error-->%@", error);
}];
