变更记录

方案名称

网络 - 使用 AFNetworking 实现网络请求

关键字

网络 \ AFNetworking \ 网络编程 \ 网络请求

需求场景

1. 需要实现网络交互的需求时

参考链接

1. GitHub - AFNetworking
2. AFNetworking
3. AFNetworking2.0源码解析

详细内容

1. 下载 AFNetworking 并添加入工程

直接在 Prefix.pch 文件中引入，或者在工程的网络管理模块相关文件中引入。

2. 快速创建各种请求

1. Get 请求

   AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
   [manager GET:@"http://example.com/resources.json" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
   } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
   }];
   

2. Post 表格数据

   AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
   NSDictionary *parameters = @{@"foo": @"bar"};
   [manager POST:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
   } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
   }];
   

3. Post 文件

   AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
   NSDictionary *parameters = @{@"foo": @"bar"};
   NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];
   [manager POST:@"http://example.com/resources.json" parameters:parameters 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);
   }];
   

4. 创建下载任务 ```objective-c NSURLSessionConfiguration configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; AFURLSessionManager manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

NSURL URL = [NSURL URLWithString:@"http://example.com/download.zip"]; NSURLRequest request = [NSURLRequest requestWithURL:URL];

NSURLSessionDownloadTask downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL (NSURL targetPath, NSURLResponse response) { NSURL documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil]; return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]]; } completionHandler:^(NSURLResponse response, NSURL filePath, NSError error) { NSLog(@"File downloaded to: %@", filePath); }]; [downloadTask resume];

5. 创建上传任务
```objective-c
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];

NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];
NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:filePath progress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
    if (error) {
        NSLog(@"Error: %@", error);
    } else {
        NSLog(@"Success: %@ %@", response, responseObject);
    }
}];
[uploadTask resume];

1. 创建多文件上传，并显示进度 ```objective-c NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id formData) {

    [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil];
   

   } error:nil];

AFURLSessionManager manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; NSProgress progress = nil;

NSURLSessionUploadTask uploadTask = [manager uploadTaskWithStreamedRequest:request progress:&progress completionHandler:^(NSURLResponse response, id responseObject, NSError *error) { if (error) { NSLog(@"Error: %@", error); } else { NSLog(@"%@ %@", response, responseObject); } }];

[uploadTask resume];

7. 创建一个 Data 的上传下载任务
```objective-c
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];

NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];

NSURLSessionDataTask *dataTask = [manager dataTaskWithRequest:request completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
    if (error) {
        NSLog(@"Error: %@", error);
    } else {
        NSLog(@"%@ %@", response, responseObject);
    }
}];
[dataTask resume];

3. 网络状态监测

[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
    NSLog(@"Reachability: %@", AFStringFromNetworkReachabilityStatus(status));
}];

4. 对 UIKit 的功能扩展

UIKit+AFNetworking.h

#import <UIKit/UIKit.h>

#ifndef _UIKIT_AFNETWORKING_
    #define _UIKIT_AFNETWORKING_

    #import "AFNetworkActivityIndicatorManager.h"

    #import "UIActivityIndicatorView+AFNetworking.h"
    #import "UIAlertView+AFNetworking.h"
    #import "UIButton+AFNetworking.h"
    #import "UIImageView+AFNetworking.h"
    #import "UIKit+AFNetworking.h"
    #import "UIProgressView+AFNetworking.h"
    #import "UIWebView+AFNetworking.h"
#endif /* _UIKIT_AFNETWORKING_ */

效果图

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备注

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