iOS 【network-封装业务类AFNetworking（AFHTTPSessionManager）】

http://www.2cto.com/kf/201607/527908.html

由于AFNetworking底层请求由NSURLConnection更新为NSURLSession，管理者对象也由AFHTTPRequestOperationManager更新为AFURLSessionManager。

本文重点讲述如何封装AFN业务类，将第三方为程序带来的污染减小到最低。

 

代码描述：

① 封装业务类

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//

//  WZYAFNTool.h

//  0716-02AFN上传下载GETPOST-01

//

//  Created by 王中尧 on 16/7/16.

//  Copyright © 2016年 wzy. All rights reserved.

//

 

#import<foundation foundation.h="">

@classAFNetWorking;

 

@interfaceWZYAFNTool : NSObject

 

+ (void)get:(NSString *)url parameters:(id)params success:(void(^)(id object))success failure:(void(^)(NSError *error))failure;

 

+ (void)post:(NSString *)url parameters:(id)params success:(void(^)(id object))success failure:(void(^)(NSError *error))failure;

 

+ (void)unload:(NSString *)uploadUrl parameters:(id)params filePath:(NSString *)filePath name:(NSString *)name progress:(void(^)(NSProgress *))progress success:(void(^)(id object))success failure:(void(^)(NSError *))failure;

 

+ (void)download:(NSString *)url progress:(void(^)(NSProgress *progress))progress destination:(NSURL *(^)(NSURL *targetPath, NSURLResponse *response))destination failure:(void(^)(NSURLResponse * response, NSURL * filePath, NSError * error))failure;

 

@end

</foundation>

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//

//  WZYAFNTool.m

//  0716-02AFN上传下载GETPOST-01

//

//  Created by 王中尧 on 16/7/16.

//  Copyright © 2016年 wzy. All rights reserved.

//

 

#import"WZYAFNTool.h"

#import"AFNetworking.h"

 

@implementationWZYAFNTool

 

+ (void)get:(NSString *)url parameters:(id)params success:(void(^)(id object))success failure:(void(^)(NSError *error))failure {

     

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    [manager GET:url parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

         

        if(success) {

            success(responseObject);

        }

         

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

        

        if(failure) {

            failure(error);

        }

         

    }];

}

 

+ (void)post:(NSString *)url parameters:(id)params success:(void(^)(id object))success failure:(void(^)(NSError *error))failure {

     

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    [manager GET:url parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

         

        if(success) {

            success(responseObject);

        }

         

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

         

        if(failure) {

            failure(error);

        }

         

    }];

}

 

+ (void)unload:(NSString *)uploadUrl parameters:(id)params filePath:(NSString *)filePath name:(NSString *)name progress:(void(^)(NSProgress *progress))progress success:(void(^)(id object))success failure:(void(^)(NSError *error))failure {

     

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

 

    [manager POST:uploadUrl parameters:params constructingBodyWithBlock:^(id  _Nonnull formData) {

         

        /*

         第一个参数:要上传的文件的URL

         第二个参数:后台接口规定

         第三个参数:错误信息

         */

        [formData appendPartWithFileURL:[NSURL fileURLWithPath:filePath] name:name error:nil];

    } progress:^(NSProgress * _Nonnull uploadProgress) {

         

        if(progress) {

            progress(uploadProgress);

        }

         

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

         

        if(success) {

            success(responseObject);

        }

         

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

         

        if(failure) {

            failure(error);

        }

         

    }];

}

 

+ (void)download:(NSString *)url progress:(void(^)(NSProgress *progress))progress destination:(NSURL *(^)(NSURL *targetPath, NSURLResponse *response))destination failure:(void(^)(NSURLResponse * response, NSURL * filePath, NSError * error))failure {

    // 1 创建会话管理者

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    // 2 创建请求路径 请求对象

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

     

    // 3 创建请求下载操作对象

    NSURLSessionDownloadTask *downTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {

         

        if(progress) {

            progress(downloadProgress);

        }

         

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

         

        if(destination) {

            return destination(targetPath, response);

        }else{

            returnnil;

        }

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

        if(failure) {

            failure(response, filePath, error);

        }

    }];

     

    // 4 执行任务发送下载操作请求

    [downTask resume];

}

 

@end

</afmultipartformdata>

 

② 调用

 

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//

//  ViewController.m

//  0716-02AFN上传下载GETPOST-01

//

//  Created by 王中尧 on 16/7/16.

//  Copyright © 2016年 wzy. All rights reserved.

//

 

#import"ViewController.h"

#import"AFNetworking.h"

 

#import"WZYAFNTool.h"

 

@interfaceViewController ()

 

@end

 

@implementationViewController

 

- (void)touchesBegan:(NSSet<uitouch> *)touches withEvent:(UIEvent *)event {

    // 使用AFN原生方法

//    [self getAFN];

//    [self postAFN];

//    [self upload];

//    [self download];

     

    // 使用WZYAFNTool业务类

//    [self wzyGET];

//    [self wzyPOST];

//    [self wzyUpload];

//    [self wzyDownload];

}

 

// AFN GET请求

- (void)getAFN {

     

    // 1 封装会话管理者

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    // 2 拼接请求参数

    NSDictionary *dict = @{

                           @"username": @"520it",

                           @"pwd": @"520it",

                           @"type": @"JSON"

                           };

    // 3 发送请求

    /*

     第一个参数:请求路径(!不包含参数) 类型是NSString

     以前:http://120.25.226.186:32812/login?username=520it&pwd=123&type=JSON

     现在:http://120.25.226.186:32812/login

     第二个参数:参数(用字典来保存参数)

     第三个参数:progress 进度回调

     第四个参数:success成功之后的回调

     responseObject:注意此参数是响应体(内部已经完成了反序列化处理:JSON--->OC，此处类型为id，也就是OC对象)

     task.response:响应头

     第五个参数:failure 失败之后的回调

    */

    [manager GET:@"http://120.25.226.186:32812/login"parameters:dict progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

         

        NSLog(@"success---%@---%@", responseObject, [responseObject class]);

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

        NSLog(@"failure---%@", error);

    }];

     

}

// WZYAFNTool GET请求

- (void)wzyGET {

    NSDictionary *dict = @{

                           @"username": @"520it",

                           @"pwd": @"520it",

                           @"type": @"JSON"

                           };

     

    [WZYAFNTool get:@"http://120.25.226.186:32812/login"parameters:dict success:^(id object) {

        NSLog(@"success---%@", object);

    } failure:^(NSError *error) {

        NSLog(@"error---%@", error);

    }];

}

 

 

// AFN POST请求

- (void)postAFN {

    // 1 封装会话管理者

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    // 2 拼接请求参数

    NSDictionary *dict = @{

                           @"username": @"520it",

                           @"pwd": @"520it",

                           @"type": @"JSON"

                           };

    // 3 发送请求

    /*

     第一个参数:请求路径(!不包含参数) 类型是NSString

     以前:http://120.25.226.186:32812/login?username=520it&pwd=123&type=JSON

     现在:http://120.25.226.186:32812/login

     第二个参数:参数(用字典来保存参数)

     第三个参数:progress 进度回调

     第四个参数:success成功之后的回调

     responseObject:注意此参数是响应体(内部已经完成了反序列化处理:JSON--->OC，此处类型为id，也就是OC对象)

     task.response:响应头

     第五个参数:failure 失败之后的回调

     */

    [manager POST:@"http://120.25.226.186:32812/login"parameters:dict progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

         

        NSLog(@"success---%@---%@", responseObject, [responseObject class]);

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

        NSLog(@"failure---%@", error);

    }];

}

// WZYAFNTool POST请求

- (void)wzyPOST {

    NSDictionary *dict = @{

                           @"username": @"520it",

                           @"pwd": @"520it",

                           @"type": @"JSON"

                           };

    [WZYAFNTool post:@"http://120.25.226.186:32812/login"parameters:dict success:^(id object) {

        NSLog(@"success---%@", object);

    } failure:^(NSError *error) {

        NSLog(@"error---%@", error);

    }];

}

 

 

// AFN 上传

- (void)upload {

    // 1 创建请求者对象

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    // 2 发送POST请求上传数据文件

    NSDictionary *dict = @{@"wzy": @"wangzhongyao"};

     

    /*

     第一个参数: 请求路径

     第二个参数: 非文件参数 (字典)

     第三个参数: constructingBodyWithBlock 处理上传的文件

     第四个参数: progress 进度回调

     第五个参数: success 成功之后的回调

     responseObject 响应体

     第六个参数: failure 失败之后的回调

     */

     

    [manager POST:@"http://120.25.226.186:32812/upload"parameters:dict constructingBodyWithBlock:^(id  _Nonnull formData) {

         

        /*

         第一个参数:要上传的文件的URL

         第二个参数:后台接口规定

         第三个参数:错误信息

         */

        [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"/Users/wangzhongyao/Desktop/Snip20160716_17.png"] name:@"file"error:nil];

    } progress:^(NSProgress * _Nonnull uploadProgress) {

         

        // 上传进度

        NSLog(@"unload --- %f",1.0*uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);

         

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

         

        //JSON--->OC 反序列化

        NSLog(@"响应体 --- %@",responseObject);// responseObject 响应体 在方法内部就反序列化成功

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

         

        // 输出错误信息

        NSLog(@"%@", error);

    }];

}

// WZYAFNTool 上传

- (void)wzyUpload {

    NSDictionary *dict = @{@"wzy": @"wangzhongyao"};

     

    [WZYAFNTool unload:@"http://120.25.226.186:32812/upload"parameters:dict filePath:@"/Users/wangzhongyao/Desktop/Snip20160716_17.png"name:@"file"progress:^(NSProgress *progress) {

         

        // 上传进度

        NSLog(@"unload --- %f",1.0*progress.completedUnitCount / progress.totalUnitCount);

    } success:^(id object) {

         

        //JSON--->OC 反序列化

        NSLog(@"响应体 --- %@",object);// responseObject 响应体 在方法内部就反序列化成功

    } failure:^(NSError *error) {

         

        // 输出错误信息

        NSLog(@"%@", error);

    }];

     

}

 

 

// AFN 下载

- (void)download {

     

    /*

     第一个参数: 请求对象

     第二个参数: progress进度回调

     第三个参数: destination URL处理的回调

               targetPath:文件下载到沙盒中的临时路径

               response:响应头信息

     返回值: 告诉AFN文件应该剪切到什么地方

     第四个参数: completionHandler完成之后的回调

               filePath:就是文件的最终保存位置

     */

     

    // 1 创建会话管理者

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

     

    // 2 创建请求路径 请求对象

    NSURL *url = [NSURL URLWithString:@"http://www.bz55.com/uploads/allimg/150326/140-150326141213-50.jpg"];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    

    // 3 创建请求下载操作对象

    NSURLSessionDownloadTask *downTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {

         

        // 计算进度

        NSLog(@"downloading --- %f",1.0* downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);

         

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

         

        // 获得文件下载保存的全路径

        NSString *fullPath = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:response.suggestedFilename];

        NSLog(@"fullPath --- %@, tmpPath --- %@", fullPath, targetPath); // 打印需要修改的全路径 & 临时路径

         

        // 该方法会拼接上协议头 file:// 成为一个完整的URL，而URLWithString不会自动拼接协议头

        return[NSURL fileURLWithPath:fullPath]; // 该block是有返回值的，返回文件剪切保存的路径

         

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

        NSLog(@"filePath --- %@", filePath);

    }];

     

    // 4 执行任务发送下载操作请求

    [downTask resume];

}

// WZYAFNTool 下载

- (void)wzyDownload {

    [WZYAFNTool download:@"http://www.bz55.com/uploads/allimg/150326/140-150326141213-50.jpg"progress:^(NSProgress *progress) {

         

        // 计算进度

        NSLog(@"downloading --- %f",1.0* progress.completedUnitCount / progress.totalUnitCount);

         

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

         

        // 获得文件下载保存的全路径

        NSString *fullPath = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:response.suggestedFilename];

        NSLog(@"fullPath --- %@, tmpPath --- %@", fullPath, targetPath); // 打印需要修改的全路径 & 临时路径

         

        // 该方法会拼接上协议头 file:// 成为一个完整的URL，而URLWithString不会自动拼接协议头

        return[NSURL fileURLWithPath:fullPath];

         

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

         

        NSLog(@"filePath --- %@", filePath); // filePath --- (null)

         

    }];

}

 

@end</afmultipartformdata></uitouch>