AFNetWorking常用方法
1、AFHTTPSessionManager请求管理者
-(AFHTTPSessionManager *)sharedManager
{
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
//最大请求并发任务数
manager.operationQueue.maxConcurrentOperationCount = 5;
// 请求格式
// AFHTTPRequestSerializer 二进制格式
// AFJSONRequestSerializer JSON
// AFPropertyListRequestSerializer PList(是一种特殊的XML,解析起来相对容易)
manager.requestSerializer = [AFHTTPRequestSerializer serializer]; // 上传普通格式
// 超时时间
manager.requestSerializer.timeoutInterval = 30.0f;
// 设置请求头
[manager.requestSerializer setValue:@"gzip" forHTTPHeaderField:@"Content-Encoding"];
// 设置接收的Content-Type
manager.responseSerializer.acceptableContentTypes = [[NSSet alloc] initWithObjects:@"application/xml", @"text/xml",@"text/html", @"application/json",@"text/plain",nil];
// 返回格式
// AFHTTPResponseSerializer 二进制格式
// AFJSONResponseSerializer JSON
// AFXMLParserResponseSerializer XML,只能返回XMLParser,还需要自己通过代理方法解析
// AFXMLDocumentResponseSerializer (Mac OS X)
// AFPropertyListResponseSerializer PList
// AFImageResponseSerializer Image
// AFCompoundResponseSerializer 组合
manager.responseSerializer = [AFJSONResponseSerializer serializer];//返回格式 JSON
//设置返回C的ontent-type
manager.responseSerializer.acceptableContentTypes=[[NSSet alloc] initWithObjects:@"application/xml", @"text/xml",@"text/html", @"application/json",@"text/plain",nil];
return manager;
}
2、get请求
-(void)doGetRequest
{
//创建请求地址
NSString *url=@"http://api.getrequest.com/method";
//构造参数
NSDictionary *parameters=@{@“key”:@“value”};
//AFN管理者调用get请求方法
[[self shareAFNManager] GET:url parameters:parameters progress:^(NSProgress * _Nonnull downloadProgress) {
//返回请求返回进度
NSLog(@"downloadProgress-->%@",downloadProgress);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
//请求成功返回数据 根据responseSerializer 返回不同的数据格式
NSLog(@"responseObject-->%@",responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//请求失败
NSLog(@"error-->%@",error);
}];
}
3、post请求
-(void)doPostRequest
{
//创建请求地址
NSString *url=@"http://api.getrequest.com/method";
//构造参数
NSDictionary *parameters=@{@“key”:@“value”};
//AFN管理者调用post请求方法
[[self shareAFNManager] POST:url parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
//返回请求返回进度
NSLog(@"downloadProgress-->%@",uploadProgress);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
//请求成功返回数据 根据responseSerializer 返回不同的数据格式
NSLog(@"responseObject-->%@",responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//请求失败
NSLog(@"error-->%@",error);
}];
}
4、处理文件上传
-(void)doUploadRequest
{
//创建请求地址
NSString *url=@"http://api.getrequest.com/method";
//构造参数
NSDictionary *parameters=@{@“key”:@“value”};
[[self shareAFNManager] POST:url parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];
NSTimeInterval a=[dat timeIntervalSince1970];
NSString* fileName = [NSString stringWithFormat:@"file_%0.f.txt", a];
[FileUtils writeDataToFile:fileName data:[@"upload_file_to_server" dataUsingEncoding:NSUTF8StringEncoding]];
// 获取数据转换成data
NSString *filePath =[FileUtils getFilePath:fileName];
// 拼接数据到请求体中
[formData appendPartWithFileURL:[NSURL fileURLWithPath:filePath] name:@"headUrl" fileName:fileName mimeType:@"application/octet-stream" error:nil];
} progress:^(NSProgress * _Nonnull uploadProgress) {
// 上传进度
NSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
//请求成功
NSLog(@"请求成功：%@",responseObject);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//请求失败
NSLog(@"请求失败：%@",error);
}];
}
5、处理文件下载
-(void)doDownLoadRequest
{
NSString *urlStr =@"http://image.request.com/image.png";
// 设置请求的URL地址
NSURL *url = [NSURL URLWithString:urlStr];
// 创建请求对象
NSURLRequest *request = [NSURLRequest requestWithURL:url];
// 下载任务
NSURLSessionDownloadTask *task = [[self shareAFNManager] downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {
// 下载进度
NSLog(@"当前下载进度为:%lf", 1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);
} destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
// 下载地址
NSLog(@"默认下载地址%@",targetPath);
//这里模拟一个路径 真实场景可以根据url计算出一个md5值 作为fileKey
NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];
NSTimeInterval a=[dat timeIntervalSince1970];
NSString* fileKey = [NSString stringWithFormat:@"/file_%0.f.txt", a];
// 设置下载路径,通过沙盒获取缓存地址,最后返回NSURL对象
NSString *filePath = [FileUtils getFilePath:fileKey];
return [NSURL fileURLWithPath:filePath]; // 返回的是文件存放在本地沙盒的地址
} completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
// 下载完成调用的方法
NSLog(@"filePath---%@", filePath);
NSData *data=[NSData dataWithContentsOfURL:filePath];
UIImage *image=[UIImage imageWithData:data];
// 刷新界面...
UIImageView *imageView =[[UIImageView alloc]init];
imageView.image=image;
[self.view addSubview:imageView];
}];
//启动下载任务
[task resume];
}
6、网络状态监听
- (void)aFNetworkStatus{
//创建网络监测者
AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];
/*枚举里面四个状态 分别对应 未知 无网络 数据 WiFi
typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
AFNetworkReachabilityStatusUnknown = -1, 未知
AFNetworkReachabilityStatusNotReachable = 0, 无网络
AFNetworkReachabilityStatusReachableViaWWAN = 1, 蜂窝数据网络
AFNetworkReachabilityStatusReachableViaWiFi = 2, WiFi
};
*/
[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
//这里是监测到网络改变的block 可以写成switch方便
//在里面可以随便写事件
switch (status) {
case AFNetworkReachabilityStatusUnknown:
NSLog(@"未知网络状态");
break;
case AFNetworkReachabilityStatusNotReachable:
NSLog(@"无网络");
break;
case AFNetworkReachabilityStatusReachableViaWWAN:
NSLog(@"蜂窝数据网");
break;
case AFNetworkReachabilityStatusReachableViaWiFi:
NSLog(@"WiFi网络");
break;
default:
break;
}
}] ;
[manager startMonitoring];
}
7、AFNetWorking内存泄露
+ (AFHTTPSessionManager *)sharedManager
{
static AFHTTPSessionManager *manager = nil;
static dispatch_once_t predicate;
dispatch_once(&predicate, ^{
manager = [AFHTTPSessionManager manager];
manager.operationQueue.maxConcurrentOperationCount = 5;
manager.requestSerializer.timeoutInterval=30.f;
manager.responseSerializer.acceptableContentTypes = [[NSSet alloc] initWithObjects:@"application/xml", @"text/xml",@"text/html", @"application/json",@"text/plain",nil];
[manager.requestSerializer setValue:@"gzip" forHTTPHeaderField:@"Content-Encoding"];
});
return manager;
}
因为AFN默认调试的方法不是单例。在
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]里面实现方法为：
+ (instancetype)manager {
return [[[self class] alloc] initWithBaseURL:nil];
}
8、AFNetWorking HTTPS
方法一：配置https CA证书，采用获取NSBundle中获取CA证书，AFNetWorking提供了配置AFSecurityPolicy模块
+ (AFSecurityPolicy *)customSecurityPolicy{
//Https CA证书地址
NSString *cerPath = [[NSBundle mainBundle] pathForResource:@"HTTPSCer" ofType:@"cer"];
//获取CA证书数据
NSData *cerData = [NSData dataWithContentsOfFile:cerPath];
//创建AFSecurityPolicy对象
AFSecurityPolicy *security = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
//设置是否允许不信任的证书（证书无效、证书时间过期）通过验证 ，默认为NO.
security.allowInvalidCertificates = YES;
//是否验证域名证书的CN(common name)字段。默认值为YES。
security.validatesDomainName = NO;
//根据验证模式来返回用于验证服务器的证书
security.pinnedCertificates = [NSSet setWithObject:cerData];
return security;
}
方法二：在pList.info文件中添加
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>