iOS多图片上传

    +(NSString *)PostImagesToServer:(NSString *) strUrl dicPostParams:(NSMutableDictionary *)params dicImages:(NSMutableDictionary *) dicImages{            NSString * res;                                    //分界线的标识符            NSString *TWITTERFON_FORM_BOUNDARY = @"AaB03x";            //根据url初始化request            //NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:strUrl] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10];                        NSURL *url = [NSURL URLWithString:strUrl];            NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];            //分界线 --AaB03x            NSString *MPboundary=[[NSString alloc]initWithFormat:@"--%@",TWITTERFON_FORM_BOUNDARY];            //结束符 AaB03x--            NSString *endMPboundary=[[NSString alloc]initWithFormat:@"%@--",MPboundary];            //要上传的图片            UIImage *image;//=[params objectForKey:@"pic"];            //得到图片的data            //NSData* data = UIImagePNGRepresentation(image);            //http body的字符串            NSMutableString *body=[[NSMutableString alloc]init];            //参数的集合的所有key的集合            NSArray *keys= [params allKeys];                        //遍历keys            for(int i=0;i<[keys count];i++) {                //得到当前key                NSString *key=[keys objectAtIndex:i];                //如果key不是pic，说明value是字符类型，比如name：Boris                //if(![key isEqualToString:@"pic"]) {                    //添加分界线，换行                    [body appendFormat:@"%@\r\n",MPboundary];                    //添加字段名称，换2行                    [body appendFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key];                    //[body appendString:@"Content-Transfer-Encoding: 8bit"];                    //添加字段的值                    [body appendFormat:@"%@\r\n",[params objectForKey:key]];                //}            }            ////添加分界线，换行            //[body appendFormat:@"%@\r\n",MPboundary];                        //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]];                        //循环加入上传图片            keys = [dicImages allKeys];            for(int i = 0; i< [keys count] ; i++){                //要上传的图片                image = [dicImages objectForKey:[keys objectAtIndex:i ]];                //得到图片的data                NSData* data =  UIImageJPEGRepresentation(image, 0.0);                NSMutableString *imgbody = [[NSMutableString alloc] init];                //此处循环添加图片文件                //添加图片信息字段                //声明pic字段，文件名为boris.png                //[body appendFormat:[NSString stringWithFormat: @"Content-Disposition: form-data; name=\"File\"; filename=\"%@\"\r\n", [keys objectAtIndex:i]]];                                ////添加分界线，换行                [imgbody appendFormat:@"%@\r\n",MPboundary];                [imgbody appendFormat:@"Content-Disposition: form-data; name=\"File%d\"; filename=\"%@.jpg\"\r\n", i, [keys objectAtIndex:i]];                //声明上传文件的格式                [imgbody appendFormat:@"Content-Type: application/octet-stream; charset=utf-8\r\n\r\n"];                                NSLog(@"上传的图片：%d  %@", i, [keys objectAtIndex:i]);                                //将body字符串转化为UTF8格式的二进制                //[myRequestData appendData:[body dataUsingEncoding:NSUTF8StringEncoding]];                [myRequestData appendData:[imgbody dataUsingEncoding:NSUTF8StringEncoding]];                //将image的data加入                [myRequestData appendData:data];                [myRequestData appendData:[ @"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];            }            //声明结束符：--AaB03x--            NSString *end=[[NSString alloc]initWithFormat:@"%@\r\n",endMPboundary];            //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"];            //[request setValue:@"keep-alive" forHTTPHeaderField:@"connection"];            //[request setValue:@"UTF-8" forHTTPHeaderField:@"Charsert"];            //设置Content-Length            [request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[myRequestData length]] forHTTPHeaderField:@"Content-Length"];            //设置http body            [request setHTTPBody:myRequestData];            //http method            [request setHTTPMethod:@"POST"];                        //建立连接，设置代理            //NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];                        //设置接受response的data                 NSData *mResponseData;            NSError *err = nil;            mResponseData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&err];                        if(mResponseData == nil){                NSLog(@"err code : %@", [err localizedDescription]);            }            res = [[NSString alloc] initWithData:mResponseData encoding:NSUTF8StringEncoding];            /*           if (conn) {               mResponseData = [NSMutableData data];               mResponseData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&err];                              if(mResponseData == nil){                   NSLog(@"err code : %@", [err localizedDescription]);               }               res = [[NSString alloc] initWithData:mResponseData encoding:NSUTF8StringEncoding];           }else{               res = [[NSString alloc] init];           }*/            NSLog(@"服务器返回：%@", res);            return res;        }
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iOS多图片上传
