iOS网络解析不能带中文参数

1.本人使用AFNetworking，进行网络解析。在上传用户信息时，携带中文参数时；会导致AFN直接崩溃，显示URL错误！（后来，使用iOS原生也是一样）。

2.

//拼接字符串(其中user,address都是中文)

self.urlString =[NSString stringWithFormat:@"%@p/smart/api/consumer/consumerexp/addConsumerExp?sn=%@&sign=%@&time=%@&sex=%@&age=%@&adds=%@&monicker=%@",self.yuMin,sn,md5,timeString,@"0",_ageTextField.text,_addressTextField.text,_userTextField.text];

//URL转换 使用方法：stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding

//（该方法已在iOS9.0以后被取代）新方法：stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]

self.urlString =[self.urlString  stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 

//然后直接用AFN请求数据（本人下面的使用的是HTTPS 绕过证书的解析方式）

AFHTTPSessionManager * manager =[AFHTTPSessionManager manager];

manager.securityPolicy =[AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];

manager.securityPolicy.allowInvalidCertificates =YES;

[manager.securityPolicy setValidatesDomainName:NO];

NSURLSessionDataTask * dataTask;

dataTask =[manager GET: self.urlString  parameters:nil success:^(NSURLSessionDataTask *task, id responseObject) {

NSDictionary *dict =responseObject;

} failure:^(NSURLSessionDataTask *task, NSError *error) {

}];

3.iOS自带网络解析

[NSURLURLWithString:urlString]生成URL对象时,iOS客户端不能正确进行网络请求,网上找到的URLEncode方法又不能完全解决问题.

方法1:

NSString* encodedString = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

方法2:

NSString * encodedString = (NSString *)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)urlString,NULL,NULL,kCFStringEncodingUTF8);

这两种方法当urlString里含有中文时URL编码是正确的,但是如果其中含有已转义的%等符号时,又会再次转义而导致错误.

查看方法2参数说明:

CFStringRef CFURLCreateStringByAddingPercentEscapes(CFAllocatorRef allocator,CFStringRef originalString, CFStringRef charactersToLeaveUnescaped, CFStringRef legalURLCharactersToBeEscaped,CFStringEncoding encoding);

因此做出修改,写出方法:

NSString *encodedString = (NSString *)

CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,

(CFStringRef)urlString,

(CFStringRef)@"!$&'()*+,-./:;=?@_~%#[]",

NULL,

kCFStringEncodingUTF8);