• iOS利用AFNetworking(AFN) 实现图片上传


    1.上传图片以二进制流的形式上传

     1 #pragma mark - 文件上传

     2 - (IBAction)uploadImage

     3 {

     4     /*

     5      此段代码如果需要修改,可以调整的位置

     6      

     7      1. 把upload.php改成网站开发人员告知的地址

     8      2. 把file改成网站开发人员告知的字段名

     9      */

    10     // 1. httpClient->url

    11     

    12     // 2. 上传请求POST

    13     NSURLRequest *request = [_httpClient multipartFormRequestWithMethod:@"POST" path:@"upload.php" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

    14         // 在此位置生成一个要上传的数据体

    15         // form对应的是html文件中的表单

    16         

    17         

    18         UIImage *image = [UIImage imageNamed:@"头像1"];

    19         NSData *data = UIImagePNGRepresentation(image);

    20         

    21         // 在网络开发中,上传文件时,是文件不允许被覆盖,文件重名

    22         // 要解决此问题,

    23         // 可以在上传时使用当前的系统事件作为文件名

    24         NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

    25         // 设置时间格式

    26         formatter.dateFormat = @"yyyyMMddHHmmss";

    27         NSString *str = [formatter stringFromDate:[NSDate date]];

    28         NSString *fileName = [NSString stringWithFormat:@"%@.png", str];

    29         

    30         

    31         /*

    32          此方法参数

    33          1. 要上传的[二进制数据]

    34          2. 对应网站上[upload.php中]处理文件的[字段"file"]

    35          3. 要保存在服务器上的[文件名]

    36          4. 上传文件的[mimeType]

    37          */

    38         [formData appendPartWithFileData:data name:@"file" fileName:fileName mimeType:@"image/png"];

    39     }];//file改为后台接收的字段或参数

    40     

    41     // 3. operation包装的urlconnetion

    42     AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];

    43     

    44     [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

    45         NSLog(@"上传完成");

    46     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

    47         NSLog(@"上传失败->%@", error);

    48     }];

    49     

    50     //执行

    51     [_httpClient.operationQueue addOperation:op];

    当要上传多张图片时只需在multipartFormRequestWithMethod方法上添加这些代码就好

    AFNetWorking使用multipartFormRequestWithMethod方法上传多张图片问题

    int i=0;

    NSMutableURLRequest *request = [[AFNetWorkSingleton shareInstance] multipartFormRequestWithMethod:@"POST" path:@"Mindex/getimg" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData>formData){

        for(UIImage *eachImage in array)

        {

            NSData *imageData = UIImageJPEGRepresentation(eachImage,0.5);

            [formData appendPartWithFileData:imageData name:[NSString stringWithFormat:@"file%d",i ] fileName:[NSString stringWithFormat:@"abc%d.jpg",i ] mimeType:@"image/jpeg"];//file改为后台接收的字段或参数

            i++;

        }

    }];

    2.上传图片以二进制流的字符串的形式上传

    -(void)postPhotosToShare_API23_withPid:(NSString *)_pid andUid:(NSString *)_uid andScore:(float)_score andContent:(NSString *)_content andAnonymous:(NSString *)_anonymous andImgArray:(NSMutableArray *)_imgArray

    {

    path = @"interface/product.php/product/";//path为网站开发人员告知的除去IP后的地址

        NSURL *baseUrl1 = [NSURL URLWithString:urlIP];//urlIP为网站开发人员告知的IP地址,例:http://192..168.1.1

        httpClient = [[AFHTTPClient alloc]initWithBaseURL:baseUrl1];

        NSMutableDictionary *parameters = [[NSMutableDictionary alloc]init];

        [parameters setObject:_pid forKey:@"pid"];

        [parameters setObject:_uid forKey:@"uid"];

        [parameters setObject:[NSString stringWithFormat:@"%f",_score] forKey:@"score"];

        [parameters setObject:_content forKey:@"content"];

        [parameters setObject:_anonymous forKey:@"anonymous"];

        if (_imgArray.count!=0)

        {

            int imgCount=0;

            for (UIImage *myImg in _imgArray)

            {

                NSData *imageData = UIImageJPEGRepresentation(myImg,0.7);//进行图片压缩

                NSString *_encodedImageStr = [imageData base64Encoding];//进行64位转码转为字符串

                [parameters setObject:_encodedImageStr forKey:[NSString stringWithFormat:@"img[%i]",imgCount]];//进行img[%i]改为后台接收的字段或参数

                imgCount ++;

            }

        }

        request = [httpClient requestWithMethod:@"POST" path:path parameters:parameters];

        [request setTimeoutInterval:kDataExpiryTime];//设置请求时间

        [AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:@"text/html"]];

        AFJSONRequestOperation *operation = [[AFJSONRequestOperation alloc]initWithRequest:request];

        [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

            NSDictionary *json = [NSJSONSerialization JSONObjectWithData:operation.responseData options:NSJSONReadingMutableContainers error:nil];

            [self getResultSuccess:json withTage:Get_API_Tag_23];//对api进行标记,可要可不要

        } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

            [self getResultFailed:error];

        }];

        [operation start];

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  • 原文地址:https://www.cnblogs.com/Ewenblog/p/3884420.html
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