Question

我创建了一个NSURLRequest，可以解雇请求。我已将它连接到requestbin，但不是requestbin解析相关的表单数据，而是将其视为原始主体。

我有一个正常工作的CURL命令，并且我可以告诉两个请求原始主体看起来一样 - 我无法弄清楚在Obj-c中我需要改变什么来获取那些形式参数才能正常工作。

这是requestbin的inspect链接：http://requestb.in/1iszums1?inspect

工作CURL：

curl -X POST -H "Authorization: Bearer token" -H "X-ADN-Pretty-JSON: 1" -F "type=com.example.test" -F "content=@/Users/me/Desktop/test.jpg" "http://re
questb.in/1iszums1"

的OBJ-C

NSString* url = @"http://requestb.in/1iszums1";
UIImage* img = [UIImage imageNamed:@"test.jpg"];

NSData *imageData = UIImageJPEGRepresentation(img, 1.0f);
NSString* token = @"token";
NSString* name = @"test.jpg";
NSString* type = @"com.example.test";

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:url]];

[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];
[request setHTTPShouldHandleCookies:NO];
[request setTimeoutInterval:60];
[request setHTTPMethod:@"POST"];

NSString *boundary = @"------------------------------6c491b1c62c8";

// set Content-Type in HTTP header
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
[request setValue:contentType forHTTPHeaderField: @"Content-Type"];
[request setValue:[NSString stringWithFormat:@"Bearer %@", token] forHTTPHeaderField:@"Authorization"];
[request setValue:@"1" forHTTPHeaderField: @"X-ADN-Pretty-JSON"];

// post body
NSMutableData *body = [NSMutableData data];    

// add params (all params are strings)
[body appendData:[[NSString stringWithFormat:@"%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"type\"\r\n\r\n%@\r\n", type] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"content\"; filename=\"%@\"\r\n", name] dataUsingEncoding:NSUTF8StringEncoding]];
    // add image data
if (imageData) {

    [body appendData:[@"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
    [body appendData:imageData];
    [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
}

[body appendData:[[NSString stringWithFormat:@"%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];


// setting the body of the post to the reqeust
[request setHTTPBody:body];

// set the content-length
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[body length]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];

[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
    if (error) {
        NSLog(@"Error: %@", error);
    } else {
        NSString *responseBody = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
        NSLog(@"%@ %@", response, responseBody);
    }
}];

Answer 1

没有尝试过，我的猜测是你在边界上缺少几个破折号：变化

[body appendData:[[NSString stringWithFormat:@"%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

到

[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

很难保持所有的破折号。如果在内容类型中声明的边界字符串是＆＃34; foo＆＃34;那么你需要将每个部分与＆＃34; - foo＆＃34;并使用＆＃34; - foo - ＆＃34;

结束整个表单数据

NSURLRequest正确格式化multipart / form-data

1 个答案: