NSURLSessionUploadTask 上传图片

来源：互联网发布：java可视化开发平台编辑：程序博客网时间：2024/06/18 05:36
-(void)uploadPhotoImageWithUrl:(NSString*)url                      userIMID:(NSString*)userIMID                     imageData:(NSData*)imageData                     imageName:(NSString*)imageName{        NSString *TWITTERFON_FORM_BOUNDARY = @"AaB03x";        //根据url初始化request    NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]                                                           cachePolicy:NSURLRequestReloadIgnoringLocalCacheData                                                       timeoutInterval:10];        //分界线 --AaB03x    NSString *MPboundary=[[NSString alloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY];    //结束符 AaB03x--    NSString *endMPboundary=[[NSString alloc]initWithFormat:@"%@--",MPboundary];         //http body的字符串    NSMutableString *body=[[NSMutableString alloc]init];    //参数的集合的所有key的集合        if(imageData){        ////添加分界线，换行        [body appendFormat:@"%@\r\n",MPboundary];                //声明pic字段，文件名为boris.png        [body appendFormat:@"Content-Disposition: form-data; name="%@"; filename="%@"\r\n",userIMID,imageName];        //声明上传文件的格式        [body appendFormat:@"Content-Type: image/jpge,image/gif, image/jpeg, image/pjpeg, image/pjpeg\r\n\r\n"];    }        //声明结束符：--AaB03x--    NSString *end=[[NSString alloc]initWithFormat:@"\r\n%@",endMPboundary];    //声明myRequestData，用来放入http body    NSMutableData *myRequestData=[NSMutableData data];        //将body字符串转化为UTF8格式的二进制    [myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]];    if(imageData){        //将image的data加入        [myRequestData appendData:imageData];    }    //加入结束符--AaB03x--    [myRequestData appendData:[end dataUsingEncoding:NSUTF8StringEncoding]];        //设置HTTPHeader中Content-Type的值    NSString *content=[[NSString alloc]initWithFormat:@"multipart/form-data; boundary=%@",TWITTERFON_FORM_BOUNDARY];    //设置HTTPHeader    [request setValue:content   forHTTPHeaderField:@"Content-Type"];        //设置Content-Length    [request setValue:[NSString stringWithFormat:@"%ld", (unsigned long)[myRequestData length]]   forHTTPHeaderField:@"Content-Length"];        //设置http body    [request setHTTPBody:myRequestData];        //http method    [request setHTTPMethod:@"POST"];            // URLSession    NSURLSession *session = [NSURLSession sharedSession];    // 上传任务    NSURLSessionUploadTask *task = [session uploadTaskWithRequest:request                                                         fromData:myRequestData                                                completionHandler:^(NSData *data, NSURLResponse *response, NSError *error)                                    {                                                                                if (!data) {                                            NSString *result = [[NSString alloc] initWithData:data                                                                                     encoding:NSUTF8StringEncoding];                                            NSLog(@"%@ %@", result, response);                                        } else {                                            NSString *result = [[NSString alloc] initWithData:data                                                                                     encoding:NSUTF8StringEncoding];                                            NSLog(@"upload ok!  %@ ", result);                                        }                                    }];        [task resume];}
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