Question

我几天来一直试图解决这个问题。我做了很多研究，并尝试了很多其他的东西，但似乎没有任何效果。发布的代码似乎是最接近工作的代码。除图像外，所有数据都填充在数据库中。我想从中获得的是能够发布UIImagePNGRepresentation（图像）返回的确切数据。我假设这是二进制数据，但不是100％。任何帮助，将不胜感激。谢谢！

-(void)sendFormData:(NSArray*)data{
// add boundary
NSString *boundary=@"----Boundary+AaB03x";

// create array of php vars
NSArray *phpVariables=[NSArray arrayWithObjects:@"username",@"picture",@"firstName",@"lastName",@"phone",@"email",@"password",nil];
// create body data
NSMutableData *body=[[NSMutableData alloc] init];

// dictionary of fields
NSMutableDictionary *formFields=[[NSMutableDictionary alloc] init];
// fill dictionary
for(int i=0; i<[data count]-1; i++) [formFields setObject:[data objectAtIndex:i] forKey:[phpVariables objectAtIndex:i]];


NSMutableURLRequest *urlRequest=[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"MY_URL"]];
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setValue:[NSString stringWithFormat:@"multipart/form-data, boundary=%@",boundary] forHTTPHeaderField:@"Content-Type"];

NSEnumerator *dictionaryEnumerator=[formFields keyEnumerator];
NSString *currentKey=nil;
while((currentKey=[dictionaryEnumerator nextObject])){
    id currentValue=[formFields objectForKey:currentKey];
    if([currentValue class]==[UIImage class]){
        [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary]  dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"myphoto.png\"\r\n",currentKey] dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:[@"Content-Type: image/x-png\r\n" dataUsingEncoding:NSASCIIStringEncoding]];
        [body appendData:[@"Content-Transfer-Encoding: binary\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
        [body appendData:UIImagePNGRepresentation(currentValue)];
        [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    }
    else{
        [body appendData:[[NSString stringWithFormat:@"--%@\r\nContent-Disposition: form-data; name=\"%@\"\r\n\r\n%@\r\n",boundary,currentKey,currentValue] dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]];
    }
}

[urlRequest setHTTPBody:body];

NSURLResponse *response;
NSError *error;
NSData *serverResponseData=[NSURLConnection sendSynchronousRequest:urlRequest
                                                 returningResponse:&response
                                                             error:&error];
[body release];
[formFields release];

NSString *serverResponseString=[[NSString alloc] initWithData:serverResponseData
                                                     encoding:NSUTF8StringEncoding];
[self performSelectorOnMainThread:@selector(showServerResponseWithString:)
                       withObject:serverResponseString
                    waitUntilDone:FALSE];
}

更新

上面的代码工作正常，实际上是PHP的问题。

Answer 1

我建议使用ASIFormDataRequest来处理这些事情（https://github.com/pokeb/asi-http-request/tree）。它允许避免这样的低级别请求构建，因为它很容易造成一个小错误，使您的请求无效

iPhone：将UIImage的二进制数据与其他表单数据一起发布到Web

1 个答案: