NSString *siteUrl = @"http://webinar.ofweek.com/readDemoFile.action";

NSDictionary *parameters = @{@"activity.id":@"",@"user.id":@""};

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

manager.responseSerializer = [AFHTTPResponseSerializer serializer];

manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];

//    manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html; charset=GBK"];

[manager GET:siteUrl parameters:parameters

     success:^(AFHTTPRequestOperation * _Nonnull operation, id  _Nonnull responseObject) {

         NSLog(@"responseString:%@",operation.responseString);

         NSData *responseData = operation.responseData;

         NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);

         NSString *strResponseData = [[NSString alloc] initWithData:responseData encoding:enc];

         NSLog(@"responseData:%@",strResponseData);

         NSLog(@"responseObject:%@",responseObject);

     }

     failure:^(AFHTTPRequestOperation * _Nonnull operation, NSError * _Nonnull error) {

         NSLog(@"failed,%@",error);

     }

];

NSString *siteUrl = @"https://www.shopbop.com/actions/viewSearchResultsAction.action";

NSDictionary *parameters = @{@"query":@"bag",@"baseIndex":@""};

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

manager.responseSerializer = [AFHTTPResponseSerializer serializer];

[manager GET:siteUrl parameters:parameters

     success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

        NSLog(@"success,%@",task.response.MIMEType);

        NSString *responseString = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

        NSLog(@"%@", responseString);

    }

     failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

    NSLog(@"failed");

    }

 ];

#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UIActivityIndicatorView *progressCircle;

@property (weak, nonatomic) IBOutlet UIWebView *webView;

- (IBAction)loadButtonClicked:(id)sender;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (IBAction)loadButtonClicked:(id)sender {

    // 开始加载数据，开始转动

    [self.progressCircle startAnimating];

    NSURL *url = [NSURL URLWithString:@"http://tech.qq.com/it.htm"];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    NSURLSession *session = [NSURLSession sharedSession];

    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request

                                                completionHandler:

                                      ^(NSData *data, NSURLResponse *response, NSError *error) {

                                          //打印出返回的状态码，请求成功返回200

                                          NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;

                                          NSInteger responseStatusCode = [httpResponse statusCode];

                                          NSLog(@"%ld", (long)responseStatusCode);

                                          //打印出返回的代码

                                          NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);

                                          NSString *strResponseData = [[NSString alloc] initWithData:data encoding:enc];

                                          NSLog(@"ResponseData String:%@",strResponseData);

                                          // 在UIWebView中加载数据

                                          [self.webView loadData:data

                                                        MIMEType:@"text/html"

                                                textEncodingName :@"utf-8"

                                                         baseURL:[NSURL URLWithString:@"http://tech.qq.com"]];

                                          //加载数据完毕，停止转动

                                          if ([NSThread isMainThread])

                                          {

                                              [self.progressCircle stopAnimating];

                                          }

                                          else

                                          {

                                              dispatch_sync(dispatch_get_main_queue(), ^{

                                                  [self.progressCircle stopAnimating];

                                              });

                                          }

                                      }];

    //使用resume方法启动任务

    [dataTask resume];

}

@end

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController <NSURLSessionDataDelegate>

@end

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

- (IBAction)testClicked:(id)sender {

    NSURL *uploadURL = [NSURL URLWithString:@"http://www.synchemical.com/temp/UploadImage4.ashx?param2=iphone6"];

    NSString *boundary = @"----------V2ymHFg03ehbqgZCaKO6jy";

    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

    NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:nil];

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:];

    NSString *uploadFilePath = [documentsDirectory stringByAppendingPathComponent:@"ad6.png"];

    NSLog(@"file path: %@",uploadFilePath);

    NSString *fileName = [uploadFilePath lastPathComponent];

    NSMutableData *mutableData = [NSMutableData data];

    NSData *fileData = [[NSData alloc] initWithContentsOfFile:uploadFilePath];

//    NSData *dataOfFile = UIImageJPEGRepresentation(self.imageView.image,1.0);

    if (fileData) {

        //Body part for "textContent" parameter. This is a string.

        NSString *textContent = @"This is a parameter string";

        [mutableData appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

        [mutableData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", @"textContent"] dataUsingEncoding:NSUTF8StringEncoding]];

        [mutableData appendData:[[NSString stringWithFormat:@"%@\r\n", textContent] dataUsingEncoding:NSUTF8StringEncoding]];

        //end

        [mutableData appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

        [mutableData appendData:[[NSString stringWithFormat:@"Content-Disposition:form-data; name=\"myfile\"; filename=\"%@\"\r\n",fileName] dataUsingEncoding:NSUTF8StringEncoding]];

        [mutableData appendData:[@"Content-Type:application/zip\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];

        [mutableData appendData:fileData];

        [mutableData appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];

        [mutableData appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

    }

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:uploadURL];

    [request setHTTPMethod:@"POST"];

    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];

    [request setValue:contentType forHTTPHeaderField:@"Content-Type"];

    NSURLSessionUploadTask *uploadTask = [session uploadTaskWithRequest:request fromData:mutableData completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

        NSString *message = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

        NSLog(@"message:%@", message);

        [session invalidateAndCancel]; //当不再需要连接时,可以调用Session的invalidateAndCancel直接关闭

    }];

    [uploadTask resume];

}

- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didSendBodyData:(int64_t)bytesSent totalBytesSent:(int64_t)totalBytesSent totalBytesExpectedToSend:(int64_t)totalBytesExpectedToSend {

    NSLog(@"already sent:%lld",bytesSent);

    NSLog(@"totoal to send:%lld",totalBytesSent);

    NSLog(@"expected send:%lld",totalBytesExpectedToSend);

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end

<%@ WebHandler Language="C#" Class="UploadImage" %>

using System;

using System.Web;

using System.IO;

public class UploadImage : IHttpHandler

{

    public void ProcessRequest(HttpContext context) {

        HttpPostedFile myFile = context.Request.Files["myfile"];

        string strFolder = HttpContext.Current.Server.MapPath(context.Request["folder"]);

        myFile.SaveAs(strFolder +"/uploadFolder/" + myFile.FileName);

        if (!Directory.Exists(strFolder))

        {

            Directory.CreateDirectory(strFolder);

        }

        context.Response.Write("param: "+context.Request["textContent"]);

   }

    public bool IsReusable {

        get {

            return false;

        }

    }

}

#import "ViewController.h"

@interface ViewController () <NSURLSessionDelegate> {

    NSData *partialData;

}

@property (strong, nonatomic) NSURLSessionDownloadTask *downloadTask;

@property (strong, nonatomic) NSURLSession *session;

@property (weak, nonatomic) IBOutlet UIActivityIndicatorView *progressCircle;

@property (weak, nonatomic) IBOutlet UIWebView *webView;

- (IBAction)downloadButtonClicked:(id)sender;

@end

@implementation ViewController

- (IBAction)downloadButtonClicked:(id)sender {

    [self.progressCircle startAnimating];

    NSURL *URL = [NSURL URLWithString:@"http://www.synchemical.com/temp/2800kb.jpg"];

    NSURLRequest *request = [NSURLRequest requestWithURL:URL];

    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

    self.session = [NSURLSession sessionWithConfiguration:configuration delegate:self delegateQueue:[NSOperationQueue mainQueue]];

    self.downloadTask = [self.session downloadTaskWithRequest:request];

    [self.downloadTask resume];

}

- (IBAction)resumeButtonClicked:(id)sender {

    // 传入上次暂停下载返回的数据，就可以恢复下载

    self.downloadTask = [self.session downloadTaskWithResumeData:partialData];

    // 开始任务

    [self.downloadTask resume];

    // 清空

    partialData = nil;

}

- (IBAction)pauseButtonClicked:(id)sender {

    [self.downloadTask cancelByProducingResumeData:^(NSData *resumeData) {

        partialData = resumeData;

        self.downloadTask = nil;

    }];

}

- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didWriteData:(int64_t)bytesWritten totalBytesWritten:(int64_t)totalBytesWritten totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite {

    NSLog(@"=========下载进度=========");

    // 获得下载进度

    NSLog(@"totalBytesWritten:%lld",totalBytesWritten);

    NSLog(@"totalBytesExpectedToWrite:%lld",totalBytesExpectedToWrite);

    NSLog(@"download percent:%f",(double)totalBytesWritten / totalBytesExpectedToWrite);

}

- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location {

    NSLog(@"finish download");

    //打印出返回的状态码，请求成功返回200

    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)downloadTask.response;

    NSInteger responseStatusCode = [httpResponse statusCode];

    NSLog(@"hxw: %ld", (long)responseStatusCode);

    //输出下载文件原来的存放目录

    NSLog(@"file tmp path: %@", location);

    //设置文件的存放目录

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsPath = [paths objectAtIndex:];

    NSURL *documentsURL = [NSURL fileURLWithPath:documentsPath];

    NSString *filePath = [[downloadTask.response URL] lastPathComponent];

    NSURL *fileURL = [documentsURL URLByAppendingPathComponent:filePath];

    NSLog(@"file save path:%@",fileURL.path);

    //如果路径下文件已经存在，先将其删除

    NSFileManager *fileManager = [NSFileManager defaultManager];

    BOOL isDir;

    if ([fileManager fileExistsAtPath:fileURL.path isDirectory:&isDir]) {

        NSLog(@"存在文件");

        if (isDir) {

            NSLog(@"它是个目录");

        }

        else {

            NSLog(@"它是个普通文件");

        }

        [fileManager removeItemAtURL:fileURL error:nil];

    }

    //移动文件

    BOOL success = [fileManager moveItemAtURL:location toURL:fileURL error:nil];

    if (success)

    {

        dispatch_async(dispatch_get_main_queue(), ^{

            //UIImage *image = [UIImage imageWithContentsOfFile:[fileURL path]];

            //self.imageView.image = image;

            //self.imageView.contentMode = UIViewContentModeScaleAspectFill;

            //在webView中加载图片文件

            NSURLRequest *showImage_request = [NSURLRequest requestWithURL:fileURL];

            [self.webView loadRequest:showImage_request];

            //下载完毕，停止转动

            if ([NSThread isMainThread]) {

                [self.progressCircle stopAnimating];

            }

            else {

                dispatch_sync(dispatch_get_main_queue(), ^{

                    [self.progressCircle stopAnimating];

                });

            }

        });

    }

    else

    {

        NSLog(@"Couldn't copy the downloaded file");

    }

}

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end