#5、AFNetworking 2.6使用方法
>2.6版本 支持 iOS7以上，而且支持NSURLConnectionOperation
>3.0版本 支持 iOS7以上 NSURLConnectionOperation被废弃了
```
//获取网络请求管理器
AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManager manager];
```
###1) 执行get请求
```
//GET 请求地址
//parameters 请求参数
//success 请求成功的回调方法
//failure 请求失败的回调方法
//responseObject 返回请求成功获得的数据
//AFN 可以帮我们自动解析json
```
###2）执行get请求2
```
// parameters 一般是字典
NSDictionary * params = @{@"username":@"haha",@"password":@“123"};
AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManager manager];
[manager GET:@"http://192.168.1.200/login.php" parameters:params success:^(AFHTTPRequestOperation * _Nonnull operation, id _Nonnull responseObject) {
NSLog(@"%@",responseObject);
} failure:^(AFHTTPRequestOperation * _Nonnull operation, NSError * _Nonnull error) {
NSLog(@"%@",error);
}];
*将GET 改为POST 则为执行POST请求*
```
###3）解析xml
```
AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFHTTPRequestSerializer serializer];
//改成AFXMLParserResponseSerializer 格式
manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
//设置可以响应的类型
// manager.responseSerializer.acceptableContentTypes
[manager GET:@"http://192.168.1.2/train.xml" parameters:nil success:^(AFHTTPRequestOperation * _Nonnull operation, id _Nonnull responseObject) {
NSLog(@"%@",responseObject);
} failure:^(AFHTTPRequestOperation * _Nonnull operation, NSError * _Nonnull error) {
NSLog(@"%@",error);
}];
```
###4）上传data
```
POST 上传地址
parameters 文本参数
constructingBodyWithBlock 上传文件的block,有可能多次调用
success 上传成功
failure 上传失败
[manager POST:@"http://192.168.1.200/post/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
formData 上传的数据
FileData 上传文件的data
name 上传文件的key
FileURL 本地路径
fileName 服务器上的名字
mimeType 上传资源的类型
NSURL * url = [[NSBundle mainBundle] URLForResource:@"111.png" withExtension:nil];
//上传文件
[formData appendPartWithFileURL:url name:@"userfile00" fileName:@"2016030211459.png" mimeType:@"image/png" error:NULL];
//上传data
[formData appendPartWithFileData:data name:@"userfile00" fileName:@"123" mimeType:@"image/png"];
} success:^(AFHTTPRequestOperation * _Nonnull operation, id _Nonnull responseObject) {
NSLog(@"%@",responseObject);
} failure:^(AFHTTPRequestOperation * _Nonnull operation, NSError * _Nonnull error) {
NSLog(@"%@",error);
}];
```
#6、AFNetworking 3.0使用方法
###1、AFNetworking3.0 和AFNetworking2.6的部分区别
>3.0版本删除了所有的 NSURLConnection 方法
>并将所有的AFHTTPRequestOperationManager 改为 AFHTTPSessionManager
>AFHTTPSessionManager * manager1 = [AFHTTPSessionManager manager];
>AFURLSessionManager *manager2 = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
>AFURLSessionManager ≈ NSURLSession
设置manager2的同时需要设置NSURLSessionConfiguration
###2、具体方法
#####1）监测网络
```
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
NSLog(@"Reachability: %@“,AFStringFromNetworkReachabilityStatus(status));
}];
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
```
#####2）上传文件
```
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://192.168.1.200/post/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData)
{
[formData appendPartWithFileURL:[[NSBundle mainBundle] URLForResource:@"111.png" withExtension:nil] name:@"userfile00" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil];
} error:nil];
NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithStreamedRequest:request progress:nil completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) {
if (error) {
NSLog(@"Error: %@", error);
} else {
NSLog(@"%@ %@", response, responseObject);
}
}];
[uploadTask resume];
```
#####3）下载文件
```
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
NSURL *URL = [NSURL URLWithString:[@"http://192.168.1.2/demo.json" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
//下载地址
NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];
NSLog(@"%@",[documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]]);
return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]];
}
completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error)
{
NSLog(@"File downloaded to: %@", filePath);
}];
//filePath == [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]
[downloadTask resume];
```