IOS-网络（AFNetworking）

一、AFNetWorking基本使用

 //
 //  ViewController.m
 //  IOS_0112_AFNetWorking
 //
 //  Created by ma c on 16/2/11.
 //  Copyright © 2016年 博文科技. All rights reserved.
 //

 #import "ViewController.h"
 #import "AFNetworking.h"

 @interface ViewController ()

 @end

 @implementation ViewController

 - (void)viewDidLoad {
     [super viewDidLoad];
     self.view.backgroundColor = [UIColor cyanColor];

 }

 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
 {
     [self getData];
 }

 - (void)postJSON
 {
     // 1.创建一个请求操作管理者
     AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
     // 2.声明：等会服务器返回的是JSON数据,默认是JSON数据
     mgr.responseSerializer = [AFJSONResponseSerializer serializer];

     // 2.请求参数
     NSMutableDictionary *dict = [NSMutableDictionary dictionary];
     dict[@"username"] = @"";
     dict[@"pwd"] = @"";
     // 3.发送一个GET请求
     NSString *url = @"http://localhost:8080/MJServer/login";
     [mgr POST:url parameters:dict progress:^(NSProgress * _Nonnull downloadProgress) {
         ;
     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
         //判断responseObject的类型
         //NSLog(@"请求成功-----%@",[responseObject class]);
         NSLog(@"请求成功-----%@", responseObject);
     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"请求失败");
     }];

 }

 - (void)getData
 {
     // 1.创建一个请求操作管理者
     AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
     // 2.声明：不要对服务器返回的数据进行解析，直接返回data即可
     mgr.responseSerializer = [AFHTTPResponseSerializer serializer];

     // 2.请求参数
     NSMutableDictionary *dict = [NSMutableDictionary dictionary];
     dict[@"username"] = @"";
     dict[@"pwd"] = @"";
     //dict[@"type"] = @"XML";
     // 3.发送一个GET请求
     NSString *url = @"http://localhost:8080/MJServer/login";
     [mgr GET:url parameters:dict progress:^(NSProgress * _Nonnull downloadProgress) {
         ;
     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

         NSLog(@"请求成功-----%@", [responseObject class]);

         NSDictionary *dcit = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil];
         NSLog(@"%@",dict);

     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"请求失败");
     }];

 }
 - (void)getXML
 {
     // 1.创建一个请求操作管理者
     AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
     // 2.声明：等会服务器返回的是XML数据
     mgr.responseSerializer = [AFXMLParserResponseSerializer serializer];
     // 2.请求参数
     NSMutableDictionary *dict = [NSMutableDictionary dictionary];
     dict[@"username"] = @"";
     dict[@"pwd"] = @"";
     dict[@"type"] = @"XML";
     // 3.发送一个GET请求
     NSString *url = @"http://localhost:8080/MJServer/login";
     [mgr GET:url parameters:dict progress:^(NSProgress * _Nonnull downloadProgress) {
         ;
     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

         NSLog(@"请求成功-----%@", responseObject);
         //解析XML数据

     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"请求失败");
     }];

 }
 - (void)getJSON
 {
     // 1.创建一个请求操作管理者
     AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
     // 2.声明：等会服务器返回的是JSON数据,默认是JSON数据
     mgr.responseSerializer = [AFJSONResponseSerializer serializer];

     // 2.请求参数
     NSMutableDictionary *dict = [NSMutableDictionary dictionary];
     dict[@"username"] = @"";
     dict[@"pwd"] = @"";
     // 3.发送一个GET请求
     NSString *url = @"http://localhost:8080/MJServer/login";
     [mgr GET:url parameters:dict progress:^(NSProgress * _Nonnull downloadProgress) {
         ;
     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
         //判断responseObject的类型
         //NSLog(@"请求成功-----%@",[responseObject class]);
         NSLog(@"请求成功-----%@", responseObject);
     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"请求失败");
     }];

 }
 @end

二、AFNetWorking文件上传

 //
 //  ViewController.m
 //  IOS_0112_AFNetWorking
 //
 //  Created by ma c on 16/2/11.
 //  Copyright © 2016年 博文科技. All rights reserved.
 //

 #import "ViewController.h"
 #import "AFNetworking.h"

 @interface ViewController ()<UINavigationControllerDelegate, UIImagePickerControllerDelegate,UIActionSheetDelegate>
 @property (weak, nonatomic) IBOutlet UIImageView *imageView;

 - (IBAction)upload;

 @end

 @implementation ViewController

 /*
  文件下载，文件比较大时，断点续传技术：普遍所有的HTTP服务器都支持
  文件上传，文件比较大时，断点续传技术：一般的HTTP服务器都不支持，常用的技术是Socket(TCP\IP,UDP)
  */

 - (void)viewDidLoad {
     [super viewDidLoad];
     self.view.backgroundColor = [UIColor cyanColor];

 }

 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
 {
     [self uploadPhotos];
 }

 - (void)uploadPhotos
 {
     UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"请选择图片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照",@"相册", nil];
     [sheet showInView:self.view.window];

 //    if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])  return;
 //    //上传手机照片给服务器，图片来源
 //    // 拍照：UIImagePickerControllerSourceTypeCamera
 //    // 相册：UIImagePickerControllerSourceTypePhotoLibrary
 //
 //    UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
 //    //设置图片来源
 //    //ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
 //    ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
 //    //设置代理
 //    ipc.delegate = self;
 //    [self presentViewController:ipc animated:nil completion:nil];
 }

 #pragma mark - UIActionSheetDelegate的代理方法
 - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
 {
     UIImagePickerController *ipc = [[UIImagePickerController alloc] init];
     //设置代理
     ipc.delegate = self;

     switch (buttonIndex) {
         case : //拍照
         {
             if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])  return;
             ipc.sourceType = UIImagePickerControllerSourceTypeCamera;
             break;
         }
         case : //相片
         {
             if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])  return;
             ipc.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
             break;
         }

         default:
             break;
     }
     //显示控制器
     [self presentViewController:ipc animated:nil completion:nil];
 }

 #pragma mark - UIImagePickerControllerDelegate代理方法
 //选择完图片后调用
 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info
 {
     //销毁控制器
     [picker dismissViewControllerAnimated:nil completion:nil];
     //获得图片
     UIImage *image = info[UIImagePickerControllerOriginalImage];
     //显示图片
     self.imageView.image = image;
     NSLog(@"%@",image);

 }

 - (IBAction)upload {
     if (self.imageView.image == nil)  return;

     // 1.创建一个请求操作的管理者
     AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
     // 2.封装参数（此参数只能放非文件参数）
     NSMutableDictionary *dict = [NSMutableDictionary dictionary];
     dict[@"username"] = @"bowen";
     dict[@"pwd"] = @"";

     // 2.发送一个请求
     NSString *url = @"http://localhost:8080/MJServer/upload";

     [mgr POST:url parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

         /*
          FileData:需要上传文件的具体数据
          name:服务器那边接收文件用的参数名
          fileName:告诉服务器所上传文件的文件名
          mimeType:所上传文件的文件类型
          */

         NSData *fileData = UIImageJPEGRepresentation(self.imageView.image, 1.0);
         [formData appendPartWithFileData:fileData name:@"file" fileName:@"pic.jpg" mimeType:@"image/jpeg"];

     } progress:^(NSProgress * _Nonnull uploadProgress) {
         ;
     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
         NSLog(@"上传成功");
     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"上传失败");
     }];

 }

 #pragma mark - uploadFile
 - (void)uploadFile
 {
     // 1.创建一个请求操作的管理者
     AFHTTPSessionManager *mgr = [AFHTTPSessionManager manager];
     // 2.封装参数（此参数只能放非文件参数）
     NSMutableDictionary *dict = [NSMutableDictionary dictionary];
     dict[@"username"] = @"bowen";
     dict[@"pwd"] = @"";

     // 2.发送一个请求
     NSString *url = @"http://localhost:8080/MJServer/upload";

     [mgr POST:url parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
         //在发送请求之前会自动调用这个block
         //需要在这个block中添加文件参数到formData

         /*
          FileURL:需要上传的文件的URL路径
          name:告诉服务器那边接收文件用的参数名
          fileName:告诉服务器所上传文件的文件名
          mimeType:所上传文件的文件类型
          */
         NSURL *url = [[NSBundle mainBundle] URLForResource:@"abc" withExtension:@"jpg"];
         [formData appendPartWithFileURL:url name:@"file" fileName:@"text.jpg" mimeType:@"image/jpeg"error:nil];

         /*
          FileData:需要上传文件的具体数据
          name:服务器那边接收文件用的参数名
          fileName:告诉服务器所上传文件的文件名
          mimeType:所上传文件的文件类型

          UIImage *image = [UIImage imageNamed:@"abc"];
          NSData *fileData = UIImageJPEGRepresentation(image, 1);
          [formData appendPartWithFileData:fileData name:@"file" fileName:@"pic.jpg" mimeType:@"image/jpeg"];

          */

     } progress:^(NSProgress * _Nonnull uploadProgress) {
         ;
     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
         NSLog(@"上传成功");
     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
         NSLog(@"上传失败");
     }];
 }

 @end