AFNetworking 使用 核心代码

///////////////////////////以前用法/////////////////////////////////////////////////////////////

//使用AFHTTPRequestOperation 创建HTTP请求 --- GET请求

//1,url

NSString *URLTmp = @"http://api.budejie.com/api/api_open.php?a=list&appname=baisibudejie&asid=F20FB3C5-A3A6-4ACA-9B22-44FB308FCB23&c=data&client=iphone&device=ios%20%E8%AE%BE%E5%A4%87&from=ios&jbk=1&mac=02%3A00%3A00%3A00%3A00%3A00&market=&openudid=6bcaf1e795d8e4cf82ce78caa1fc33b9a7c671d5&page=0&per=20&type=10&udid=&ver=2.9.3";

URLTmp = [URLTmp stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];  //转码成UTF-8  否则可能会出现错误

//2,请求对象

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString: URLTmp]];

//3，创建HTTP请求

AFHTTPRequestOperation *afOperation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

//4,

afOperation.responseSerializer = [AFJSONResponseSerializer serializer];

//5,开始请求

[afOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

//将字符串 编码后 转成 NSData

NSData *resData = [[NSData alloc] initWithData:[operation.responseString dataUsingEncoding:NSUTF8StringEncoding]];

//系统自带JSON解析

NSDictionary *resultDic = [NSJSONSerialization JSONObjectWithData:resData options:NSJSONReadingMutableLeaves error:nil];

NSLog(@"%@",resultDic);

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

NSLog(@"Failure: %@", error);

}];

//6,

[[NSOperationQueue mainQueue] addOperation:afOperation];

//------批量处理

//    NSMutableArray *mutableOperations = [NSMutableArray array];

//    for (NSURL *fileURL in filesToUpload) {

//        NSURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

//            [formData appendPartWithFileURL:fileURL name:@"images[]" error:nil];

//        }];

//

//        AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

//

//        [mutableOperations addObject:operation];

//    }

//

//    NSArray *operations = [AFURLConnectionOperation batchOfRequestOperations:@[...] progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) {

//        NSLog(@"%lu of %lu complete", numberOfFinishedOperations, totalNumberOfOperations);

//    } completionBlock:^(NSArray *operations) {

//        NSLog(@"All operations in batch complete");

//    }];

//    [[NSOperationQueue mainQueue] addOperations:operations waitUntilFinished:NO];

//

///////////////////////////新用法/////////////////////////////////////////////////////////////

//提交GET ，

//1,创建AFHTTPRequestOperationManager HTTP请求操作管理对象

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

//2，发送GET请求（默认解析JSON，plist. ）

[manager GET:URLTmp

parameters:nil

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

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

}

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

NSLog(@"Error: %@", error);

}];

// POST 单个请求

//1,创建AFHTTPRequestOperationManager HTTP请求操作管理对象

AFHTTPRequestOperationManager *manager1 = [AFHTTPRequestOperationManager manager];

//2，发送POST请求（默认解析JSON，plist. ）

NSDictionary *parameters = @{ };//空参数

[manager1 GET:URLTmp

parameters:parameters  //参数

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

// NSLog(@" POST JSON: %@", responseObject);

}

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

NSLog(@"Error: %@", error);

}];

//POST 多个请求

AFHTTPRequestOperationManager *manager2 = [AFHTTPRequestOperationManager manager];

NSDictionary *parameters2 = @{};

NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];

[manager2 POST:@"http://example.com/resources.json"

parameters:parameters2

constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

[formData appendPartWithFileURL:filePath name:@"image" error:nil];

}

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

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

}

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

//NSLog(@"Error: %@", error);

}];

//

////////////////////////////////////////////////////////////////////////////////////////

//创建一个下载文件的任务

//AFURLSessionManager创建并完善了一个NSURLSession的对象基于遵从NSURLSessionDelegate与NSURLSessionDataDelegate协议 NSURLSessionConfigration对象

//1,1 创建配置对象  （上传 下载 使用 ，  配置超时值,缓存策略,连接要求,和其他类型的信息,）

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];

//1.2 通过配置对象，创建AFURLSessionManager 管理对象

AFURLSessionManager *managerDown = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

//2，请求对象

NSURL *URL = [NSURL URLWithString:@"http://img4.mypsd.com.cn/20110707/Mypsd_59710_201107071333160001B.jpg"];

NSURLRequest *requestDown = [NSURLRequest requestWithURL:URL];

//3，创建下载任务

NSURLSessionDownloadTask *downloadTask = [managerDown downloadTaskWithRequest:requestDown

progress:nil

destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {

// 3，1 返回 一个下载到的路径

NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];

return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]]; //文件路径

}

completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {

//此处已经回到主线程 （处理UI）

// NSLog(@"File downloaded to: %@", filePath);

}];

//4, 开始

[downloadTask resume];

////////////////////////////////////////////////////////////////////////////////////////

//创建一个上传文件的任务

//AFURLSessionManager创建并完善了一个NSURLSession的对象基于遵从NSURLSessionDelegate与NSURLSessionDataDelegate协议 NSURLSessionConfigration对象

//1,1 创建配置对象  （上传 下载 使用 ，  配置超时值,缓存策略,连接要求,和其他类型的信息,）

NSURLSessionConfiguration *configuration1 = [NSURLSessionConfiguration defaultSessionConfiguration];

//1.2 通过配置对象，创建AFURLSessionManager 管理对象

AFURLSessionManager *managerUp = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration1];

//2，请求对象

NSURL *upURL = [NSURL URLWithString:@"http://example.com/upload"];

NSURLRequest *requestUp = [NSURLRequest requestWithURL:upURL];

//3,创建上传任务

NSURLSessionUploadTask *uploadTask = [managerUp uploadTaskWithRequest:requestUp

fromFile:[NSURL fileURLWithPath:@"file://path/to/image.png"]//上传文件的URL

progress:nil

completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {

if (error) {

//  NSLog(@"Error: %@", error);

} else {

// NSLog(@"Success: %@ %@", response, responseObject);

}

}];

//4，开始

[uploadTask resume];