AFNetwork 功用和用法详解++++++++++++

来源：互联网发布：java gui 弹出对话框编辑：程序博客网时间：2024/05/01 03:10

<span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">http://lizhuang.iteye.com/blog/2043148</span>

<span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;"></span>

<span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">最近在做IOS的开发，网络请求采用了AFNetworking框架，由于服务器端是接收JSON的数据，新框架不太熟，网上搜了好久才解决，记录一下。 </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    NSMutableDictionary *dict=[[NSMutableDictionary alloc]init]; </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    [dict setObject:@"apple" forKey:@"brand"];NSString *url=@"http://xxxxx";//你的接口地址   AFHTTPRequestOperationManager *manager = [A    FHTTPRequestOperationManager manager]; </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    manager.responseSerializer = [AFJSONResponseSerializer serializer];//申明返回的结果是json类型 </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];//如果报接受类型不一致请替换一致text/html或别的 </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    manager.requestSerializer=[AFJSONRequestSerializer serializer];//申明请求的数据是json类型 </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    [manager POST:url parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) { </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">        NSLog(@"%@", responseObject); </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    } failure:^(AFHTTPRequestOperation *operation, NSError *error){ </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">        NSLog(@"Error: %@", error); </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    } </span><br style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;" /><span style="font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25px;">    ];</span>

</pre><pre code_snippet_id="434453" snippet_file_name="blog_20140724_1_2274348" name="code" class="objc" style="padding: 0px; margin-top: 0px; margin-bottom: 0px; color: rgb(51, 51, 51); font-size: 14px; line-height: 24px; background-color: rgb(255, 255, 255);">

http://www.ylzx8.cn/zhuantikaifa/network/1752467.html

////  MJViewController.m//  03.AFN演练////  Created by apple on 14-4-30.//  Copyright (c) 2014年 itcast. All rights reserved.//#import "MJViewController.h"#import "AFNetworking.h"@interface MJViewController ()@end@implementation MJViewController/** 要使用常规的AFN网络访问  1. AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];     所有的网络请求,均有manager发起  2. 需要注意的是,默认提交请求的数据是二进制的,返回格式是JSON     1> 如果提交数据是JSON的,需要将请求格式设置为AFJSONRequestSerializer    2> 如果返回格式不是JSON的,  3. 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)  4. 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 */- (void)viewDidLoad{    [super viewDidLoad];        [self reach];}#pragma mark - 演练#pragma mark - 检测网络连接- (void)reach{    /**     AFNetworkReachabilityStatusUnknown          = -1,  // 未知     AFNetworkReachabilityStatusNotReachable     = 0,   // 无连接     AFNetworkReachabilityStatusReachableViaWWAN = 1,   // 3G 花钱     AFNetworkReachabilityStatusReachableViaWiFi = 2,   // 局域网络,不花钱     */    // 如果要检测网络状态的变化,必须用检测管理器的单例的startMonitoring    [[AFNetworkReachabilityManager sharedManager] startMonitoring];        // 检测网络连接的单例,网络变化时的回调方法    [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {        NSLog(@"%d", status);    }];}#pragma mark - Session 下载- (void)sessionDownload{    NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:config];        NSString *urlString = @"http://localhost/itcast/videos/01.C语言-语法预览.mp4";    urlString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];        NSURL *url = [NSURL URLWithString:urlString];    NSURLRequest *request = [NSURLRequest requestWithURL:url];        NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {        // 指定下载文件保存的路径//        NSLog(@"%@ %@", targetPath, response.suggestedFilename);        // 将下载文件保存在缓存路径中        NSString *cacheDir = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];        NSString *path = [cacheDir stringByAppendingPathComponent:response.suggestedFilename];                // URLWithString返回的是网络的URL,如果使用本地URL,需要注意        NSURL *fileURL1 = [NSURL URLWithString:path];        NSURL *fileURL = [NSURL fileURLWithPath:path];                NSLog(@"== %@ |||| %@", fileURL1, fileURL);                return fileURL;    } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {        NSLog(@"%@ %@", filePath, error);    }];        [task resume];}#pragma mark - POST JSON- (void)postJSON{    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];        NSDictionary *dict = @{@"name": @"zhangsan"};    NSDictionary *dict1 = @{@"name": @"wangwu"};    NSArray *array = @[dict, dict1];    // 设置请求格式    manager.requestSerializer = [AFJSONRequestSerializer serializer];    // 设置返回格式    manager.responseSerializer = [AFHTTPResponseSerializer serializer];        [manager POST:@"http://localhost/postjson.php" parameters:array success:^(AFHTTPRequestOperation *operation, id responseObject) {        NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];                NSLog(@"%@", result);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {            }];    }#pragma mark - 随机文件名上传- (void)postUpload1{    // 本地上传给服务器时,没有确定的URL,不好用MD5的方式处理    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];    manager.responseSerializer = [AFHTTPResponseSerializer serializer];        [manager POST:@"http://localhost/demo/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {                NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"头像1.png" withExtension:nil];                // 要上传保存在服务器中的名称        // 使用时间来作为文件名 2014-04-30 14:20:57.png        // 让不同的用户信息,保存在不同目录中        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];        // 设置日期格式        formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";        NSString *fileName = [formatter stringFromDate:[NSDate date]];                [formData appendPartWithFileURL:fileURL name:@"uploadFile" fileName:fileName mimeType:@"image/png" error:NULL];            } success:^(AFHTTPRequestOperation *operation, id responseObject) {        NSLog(@"OK");    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"error");    }];}#pragma mark - POST上传- (void)postUpload{    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];    // AFHTTPResponseSerializer就是正常的HTTP请求响应结果:NSData    // 当请求的返回数据不是JSON,XML,PList,UIImage之外,使用AFHTTPResponseSerializer    // 例如返回一个html,text...    //    // 实际上就是AFN没有对响应数据做任何处理的情况    manager.responseSerializer = [AFHTTPResponseSerializer serializer];        // formData是遵守了AFMultipartFormData的对象    [manager POST:@"http://localhost/demo/upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {                // 将本地的文件上传至服务器        NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"头像1.png" withExtension:nil];                [formData appendPartWithFileURL:fileURL name:@"uploadFile" error:NULL];    } success:^(AFHTTPRequestOperation *operation, id responseObject) {        NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];                NSLog(@"完成 %@", result);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"错误 %@", error.localizedDescription);    }];}#pragma mark - JSON- (void)XMLData{    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];        // 返回的数据格式是XML    manager.responseSerializer = [AFXMLParserResponseSerializer serializer];        NSDictionary *dict = @{@"format": @"xml"};        // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情    [manager GET:@"http://localhost/videos.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {                // 如果结果是XML,同样需要使用6个代理方法解析,或者使用第三方库        // 第三方库第三方框架,效率低,内存泄漏        NSLog(@"%@", responseObject);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"%@", error);    }];}#pragma mark - JSON- (void)JSONData{    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];        // 原本需要拼接get访问URL ? & =    NSDictionary *dict = @{@"format": @"json"};        // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情    [manager GET:@"http://localhost/videos.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {        NSLog(@"%@", responseObject);        // 提问:NSURLConnection异步方法回调,是在子线程        // 得到回调之后,通常更新UI,是在主线程        NSLog(@"%@", [NSThread currentThread]);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"%@", error);    }];}#pragma mark - POST登录- (void)postLogin{    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];        // 原本需要拼接get访问URL ? & =    NSDictionary *dict = @{@"username": @"wangwu", @"password" : @"wang"};        // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情    [manager POST:@"http://localhost/login.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {        NSLog(@"%@", responseObject);        // 提问:NSURLConnection异步方法回调,是在子线程        // 得到回调之后,通常更新UI,是在主线程        NSLog(@"%@", [NSThread currentThread]);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"%@", error);    }];}#pragma mark - GET登录- (void)getLogin{    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];        // 原本需要拼接get访问URL ? & =    NSDictionary *dict = @{@"username": @"wangwu", @"password" : @"wang"};        // 网络访问是异步的,回调是主线程的,因此程序员不用管在主线程更新UI的事情    [manager GET:@"http://localhost/login.php" parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) {        NSLog(@"%@", responseObject);        // 提问:NSURLConnection异步方法回调,是在子线程        // 得到回调之后,通常更新UI,是在主线程        NSLog(@"%@", [NSThread currentThread]);    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {        NSLog(@"%@", error);    }];}@end

http://bbs.taikr.com/thread-2280-1-1.html

众所周知，苹果搞的一套框架NSContention发送请求与接收请求的方式十分繁琐。操作起来很不方便。不仅要做区分各种请求设置各种不同的参数，而且还要经常在多线程里操作，同时还要对请求与返回的数据做各种序列化的操作，同时还要考虑请求数据的安全等一堆问题。

一、早前的几个网络框架
1、ASI框架: HTTP终结者.很牛, 但是有BUG, 已经停止更新.
2、MKNetworkKit (印度人写的).
3、AFN一直还在更新.

AFNetworking的出现：MAC/iOS设计的一套网络框架.(为了简化网络操作)

地址：https://github.com/AFNetworking/AFNetworking

*AFN专注与网络数据传输,以及网络中多线程的处理.

二、AFNetworking的使用

1、AFN特性 :
*登录传参数时,传递字典即可.(键名为参数名,键值为参数值).
*自动到子线程中执行,执行完后返回主线程.
*返回的结果自动序列化为NSDictionary.

2、使用AFN注意 :
*AFHTTPRequestOperationManager封装了通过HTTP协议与Web应用程序进行通讯的常用方法.(这个实例化的时候不是单例, 因为没有shared字)
*包括创建请求/响应序列化/网络监控/数据安全.
*方法等都是以AF开头的.

3、AFN能做的 (网络中的都涵盖了):
*GET/POST/PUT/DELETE/HEAD请求.
*JSON数据解析/Plist数据解析.(不支持XML数据解析)
*POSTJSON.
*上传/下载.

4、使用步骤 : （可参考说明文档）
1.首先需要实例化一个请求管理器AFHTTPRequestOperationManager.
2.设置请求的数据格式:默认是二进制.(不是可改)
*AFHTTPRequestSerializer(二进制)
*AFJSONRequestSerializer(JSON)
*AFPropertyListRequestSerializer(Plist)
3.设置响应的数据格式:默认是JSON.(不是可改)
*AFHTTPResponseSerializer(二进制)
*AFJSONResponseSerializer(JSON)
*AFPropertyListResponseSerializer(Plist)
*AFXMLParserResponseSerializer(XML)
*AFImageResponseSerializer(Image)
*AFCompoundResponseSerializer(组合的)
4.如果响应者的MIMEType不正确,就要修改acceptableContentTypes.
5.调用方法,发送响应的请求(GET/POST...).

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