注：示例代碼AFNetworking版本為3.0 粗略封裝，大牛勿噴

.h里面代碼

/**
 *  上傳帶圖片的內(nèi)容，允許多張圖片上傳（URL）POST
 *
 *  @param url                 網(wǎng)絡請求地址
 *  @param images              要上傳的圖片數(shù)組（注意數(shù)組內(nèi)容需是圖片）
 *  @param parameter           圖片數(shù)組對應的參數(shù)
 *  @param parameters          其他參數(shù)字典
 *  @param succeedBlock        成功的回調(diào)
 *  @param failedBlock         失敗的回調(diào)
 *  @param uploadProgressBlock 上傳進度的回調(diào)
 */
+ (void)startMultiPartUploadTaskWithURL:(NSString *)url
                           imagesArray:(NSArray *)images
                     parameterOfimages:(NSString *)parameter
                        parametersDict:(NSDictionary *)parameters
                          succeedBlock:(void(^)(id task, id responseObject))succeedBlock
                           failedBlock:(void(^)(id task, NSError *error))failedBlock
                   uploadProgressBlock:(void(^)(float uploadPercent,long long totalBytesWritten,long long totalBytesExpectedToWrite))uploadProgressBlock;

.m里面代碼，注意適配https -> 適配https看這里

+ (void)startMultiPartUploadTaskWithURL:(NSString *)url
                           imagesArray:(NSArray *)images
                     parameterOfimages:(NSString *)parameter
                        parametersDict:(NSDictionary *)parameters
                          succeedBlock:(void (^)(id, id))succeedBlock
                           failedBlock:(void (^)(id, NSError *))failedBlock
                   uploadProgressBlock:(void (^)(float, long long, long long))uploadProgressBlock{
    
    if (images.count == 0) {
        NSLog(@"上傳內(nèi)容沒有包含圖片");
        return;
    }
    for (int i = 0; i < images.count; i++) {
        if (![images[i] isKindOfClass:[UIImage class]]) {
            NSLog(@"images中第%d個元素不是UIImage對象",i+1);
            return;
        }
    }
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
    manager.requestSerializer = [AFHTTPRequestSerializer serializer];
    [manager setSecurityPolicy:[Factory customSecurityPolicy]];//此處為適配https設置
    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/html",@"text/plain", nil];
    [manager POST:url parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData)
    {
        int i = 0;
        //根據(jù)當前系統(tǒng)時間生成圖片名稱
        NSDate *date = [NSDate date];
        NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
        [formatter setDateFormat:@"yyyy年MM月dd日"];
        NSString *dateString = [formatter stringFromDate:date];
        
        for (UIImage *image in images) {
            NSString *fileName = [NSString stringWithFormat:@"%@%d.png",dateString,i];
            NSData *imageData;
            imageData = [Factory imageData:image];//對圖片進行壓縮處理,也是封裝的，這部分代碼放在下面
            [formData appendPartWithFileData:imageData name:parameter fileName:fileName mimeType:@"image/jpg/png/jpeg"];
        }
       
    } progress:^(NSProgress * _Nonnull uploadProgress) {
        NSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
        CGFloat percent = 1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount;
        uploadProgressBlock(percent,uploadProgress.completedUnitCount,uploadProgress.totalUnitCount);
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        [MBProgressHUD hideHUD];
        succeedBlock(task,responseObject);
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        [MBProgressHUD hideHUD];
        [MBProgressHUD showError:@"上傳失敗"];
        failedBlock(task,error);
        NSLog(@"請求失?。?@",error);
    }];  
}

[Factory imageData:image]這部分代碼的封裝

// 圖片壓縮
+ (NSData *)imageData:(UIImage *)myimage
{
    NSData *data = UIImageJPEGRepresentation(myimage, 1.0);
    if (data.length > 100 * 1024) {
        if (data.length > 1024 * 1024) {// 1M以及以上
            data = UIImageJPEGRepresentation(myimage, 0.1);
        }else if (data.length > 512 * 1024) {// 0.5M-1M
            data = UIImageJPEGRepresentation(myimage, 0.5);
        }else if (data.length > 200 * 1024) {// 0.25M-0.5M
            data = UIImageJPEGRepresentation(myimage, 0.9);
        }
    }
    return data;
}