AFNetworking網絡請求與圖片上傳工具（POST）

AFNetworking網絡請求與圖片上傳工具（POST）

.h文件

#import <Foundation/Foundation.h>

/** 成功Block  */
typedef void(^SuccessBlockType) (id responsData);
/** 失敗Block  */
typedef void(^FaileBlockType) (NSError *error);

@interface NetDataEngine : NSObject

//網絡請求
+ (void)postServerUrl:(NSString *)url parameters:(NSDictionary *)parameters success:(SuccessBlockType)success failure:(FaileBlockType)failure;

//上傳圖片
+ (void)uploadWith:(UIImage *)upImg success:(SuccessBlockType)success failure:(FaileBlockType)failure;

@end

 

.m文件

#import "NetDataEngine.h"
#import "AFNetworking.h"

@implementation NetDataEngine

+(AFHTTPSessionManager *)manager
{
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    
    // 聲明上傳的是json格式的參數，須要你和後臺約定好，否則會出現後臺沒法獲取到你上傳的參數問題
    manager.requestSerializer = [AFHTTPRequestSerializer serializer]; // 上傳普通格式
    //    manager.requestSerializer = [AFJSONRequestSerializer serializer]; // 上傳JSON格式
    
    // 聲明獲取到的數據格式
    manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // AFN不會解析,數據是data，須要本身解析
    //    manager.responseSerializer = [AFJSONResponseSerializer serializer]; // AFN會JSON解析返回的數據
    // 我的建議仍是本身解析的比較好，有時接口返回的數據不合格會報3840錯誤，大體是AFN沒法解析返回來的數據
    // 超時時間
    [manager.requestSerializer willChangeValueForKey:@"timeoutInterval"];
    
    manager.requestSerializer.timeoutInterval = 10.f;//設置請求超時時間
    
    [manager.requestSerializer didChangeValueForKey:@"timeoutInterval"];
    
    return manager;
}

+ (void)postServerUrl:(NSString *)url parameters:(NSDictionary *)parameters success:(SuccessBlockType)success failure:(FaileBlockType)failure {
    
    AFHTTPSessionManager *manager = [self manager];
    
    [manager POST:url parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        
        NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];
        
//        JGLog(@"%@",dict);
        success(dict);
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//        JGLog(@"error:  %@",error);
        failure(error);
    }];
}

+ (void)uploadWith:(UIImage *)upImg success:(SuccessBlockType)success failure:(FaileBlockType)failure {
    
    // 建立管理者對象
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    [manager POST:UP_PIC parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
        
        // 獲取圖片數據
        NSData *fileData = UIImagePNGRepresentation(upImg);
        
        // 設置上傳圖片的名字
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        formatter.dateFormat = @"yyyyMMddHHmmss";
        NSString *str = [formatter stringFromDate:[NSDate date]];
        NSString *fileName = [NSString stringWithFormat:@"%@.png", str];
        
        [formData appendPartWithFileData:fileData name:@"image" fileName:fileName mimeType:@"image/png"];
        
    } progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        
        //上傳成功後回調
        success(responseObject);
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        //失敗回調

        failure(error);
    }];
}

@end

 若是網絡請求超時，就在請求失敗中執行超時操做，如：取消指示器，提示用戶網絡存在問題等。

　if (error.code == -1001) {

        　　[MBProgressHUD showError:@"網絡超時，請檢查網絡"];

        }

　　//隱藏指示器

       [SVProgressHUD dismiss];