Question

我的NSMutableURLRequest在发送请求时截断了我的URL。有什么想法吗？

例如：

url = @"https://mywebsite.com/restapi/authorizationheader?requiredauthhttpmethod=GET&requiredauthuri=https://mywebsite.com/restapi/accounts?user=myusername";
NSMutableURLRequest *Request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString: url]];
[Request setHTTPMethod:@"POST"];
[NSURLConnection sendSynchronousRequest: Request returningResponse &resp error: &error];

但是服务器只接收：

https://mywebsite.com/restapi/authorizationheader?requiredauthhttpmethod=GET&requiredauthuri=https://mywebsite.com/restapi/accounts?user=

为什么“myusername”没有被发送？

Answer 1

NSString *userName = @"your username";
NSString *postStr = [NSString stringWithFormat:@"%@", userName];
[request setHTTPBody:[postStr dataUsingEncoding:NSUTF8StringEncoding]];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&error];

Answer 2

正如您所发现的那样，您必须百分之百地转义您添加为请求的requiredauthuri的保留字符。根据{{3}}，应该允许未转义的字符是字母数字字符，加上＆＃34; - ＆＃34;，＆＃34;。＆＃34;，＆＃34; _＆＃34;，和＆＃34;〜＆＃34;：

2.3。未保留的字符

URI中允许但没有保留目的的字符称为unreserved。这些包括大写和小写字母，十进制数字，连字符，句点，下划线和波浪号。
unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"

有关详细信息，请参阅上述RFC 3986的第2部分。

无论如何，您要添加到查询中的URL的正确百分比编码如下：

NSString *reqURL = @"https://mywebsite.com/restapi/accounts?user=myusername";
NSMutableCharacterSet *allowedCharacters = [NSMutableCharacterSet alphanumericCharacterSet];
[allowedCharacters addCharactersInString:@"-._~"];
NSString *encodedReqURL = [reqURL stringByAddingPercentEncodingWithAllowedCharacters:allowedCharacters];

然后你可以显然正常使用encodeReqURL：

NSString *urlString = [NSString stringWithFormat:@"https://mywebsite.com/restapi/authorizationheader?requiredauthhttpmethod=GET&requiredauthuri=%@", encodedReqURL];
NSURL *url = [NSURL URLWithString:urlString];

Answer 3

事实证明问题确实与编码有关。虽然我不是100％导致问题的原因，但我知道在我的NSMutableURLRequest和服务器接收之间的某个时刻（可能是因为NSURLConnection sendSynchronousRequest如何工作），用户名被截断了。我怀疑这是因为我有两个查询字符串。

解决方案是允许使用“？”进行编码字符。

解决方案代码：

authURLBase = @"https://mywebsite.com/restapi/authorizationheader?requiredauthhttpmethod=GET&requiredauthuri="; reqURL = @"https://mywebsite.com/restapi/accounts?user=myusername"; authURL = [authURLBase stringByAppendingString:[reqURL stringByAddingPercentEncodingWithAllowedCharacters:[NSMutableCharacterSet characterSetWithCharactersInString:@"?"]]];

NSMutableURLRequest截断我的URL

3 个答案: