我们通过多重分离图像数据向API发送正确的post请求。这里有一个问题，两个图像都没有上传，只有一个图像上传到服务器。我已经检查了API团队提供的参数名称，如下:-
#define IMAGE_DP @"Content-Disposition: form-data; name='"profileimage'"; filename='"image.jpg'"'r'nContent-Type: image/jpeg'r'n'r'n"
#define IMAGE_COVER @"Content-Disposition: form-data; name='"coverimage'"; filename='"image.jpg'"'r'nContent-Type: image/jpeg'r'n'r'n"
构建在单个NSURLMutable请求中上传两个图像的请求
if ([isprofilepicupdated isEqualToString:@"1"]) {
[postBody appendData:[IMAGE_DP dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[NSData dataWithData:profileimage]];
[postBody appendData:[[NSString stringWithFormat:@"'r'n--%@--'r'n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
}
if ([iscoverpicupdated isEqualToString:@"1"]) {
[postBody appendData:[IMAGE_COVER dataUsingEncoding:NSUTF8StringEncoding]];
[postBody appendData:[NSData dataWithData:coverimage]];
[postBody appendData:[[NSString stringWithFormat:@"'r'n--%@--'r'n",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
}
那么我们如何在nsurlmutablerequest的单个body中添加两个图像呢?
NSString *urlString = @"<PostImage-url>";
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSMutableData *body = [NSMutableData data];
NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
[request addValue:contentType forHTTPHeaderField:@"Content-Type"];
// file
for (int i=0;i<(YOUR _ARRAY).count;i++)
{
UIImage * myimg=[YOUR _ARRAY objectAtIndex:i];
NSData *ImageData = UIImagePNGRepresentation(myimg);
[body appendData:[[NSString stringWithFormat:@"--%@'r'n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Disposition: attachment; name='"img1[]'"; filename='".jpg'"'r'n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: application/octet-stream'r'n'r'n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:ImageData]];
[body appendData:[@"'r'n" dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:@"--%@'r'n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name='"vin'"'r'n'r'n"] dataUsingEncoding:NSUTF8StringEncoding]];
// close form
[body appendData:[[NSString stringWithFormat:@"--%@--'r'n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
// set request body
[request setHTTPBody:body];
//ASynchronous request
[[NSURLConnection alloc] initWithRequest:request delegate:self];