如何将内容处理表单数据保存到NSString

Question

我用NSData对象做了一个NSString：

   NSData* data = request.HTTPBody;
    NSString* s = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

现在我有了NSString，它为我提供了以下NSLog：

    WebKitFormBoundaryA7rpc3udSxxsvBFm

Content-Disposition: form-data; name="username"

Testusernamevalue

------WebKitFormBoundaryA7rpc3udSxxsvBFm

Content-Disposition: form-data; name="password"

Testpasswordvalue

------WebKitFormBoundaryA7rpc3udSxxsvBFm--

如何将“用户名”和“密码”这两个值保存到用户名和密码的单个NSString中？

谢谢你的帮助。向Eddi致以最美好的问候

Answer 1

我想我理解这个问题的意思是，我们需要"Content-Disposition“行后面的行上的字符串值。为此，我们需要遍历这些行，保持查找定界行及其类型(用户名或密码)的状态

NSArray *components = [theLongContentDispositionString componentsSeparatedByString:@"\n"];
NSMutableDictionary *values = [NSMutableDictionary dictionary];

NSString *key = nil;
for (NSString *line in components) {
    if (key && line.length) {
        values[key] = line;
        key = nil;
    } else if ([line hasPrefix:@"Content-Disposition"]) {
        // does the line contain "username"?  Assume password if not
        NSRange r = [line rangeOfString:@"username"];
        key = (r.location == NSNotFound)? @"password" : @"username";
    }
}

值字典最终应该如下所示：

{
    password = "non-empty line after Content-Disposition line with password";
    username = "non-empty line after Content-Disposition line with username";
}