ios中http 和https 协议的访问

最近做个项目，开始采用的是HTTP协议实现客户端和服务器端的交互，后来需要改成HTTPS协议。在修改的过程中发现了一些问题，解决方案如下：

 

HTTP：

    NSString *urlString =[NSString stringWithFormat:@"https://127.0.0.1/default.aspx?USER=%@",@"111"];

    

    NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];

    [request setURL:[NSURL URLWithString:urlString]];

    [request setHTTPMethod:@"GET"];

    

    NSHTTPURLResponse* urlResponse = nil;

    NSError *error = [[NSError alloc] init];

    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];

    NSMutableString *result = [[NSMutableString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];

    

    NSLog(@"The result string is :%@",result);   

 

 HTTPS

事件触发 

{ 

    NSString *urlString =[NSString stringWithFormat:@"https://127.0.0.1/default.aspx?USER=%@",@"111"];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:urlString]        cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:5];

    //设置请求方式为get

    [request setHTTPMethod:@"GET"];

    //添加用户会话id

    [request addValue:@"text/html" forHTTPHeaderField:@"Content-Type"];

    //连接发送请求

    finished = false;

    NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];

//堵塞线程，等待结束

while(!finished) {

[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];

}

} 

 

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse*)response 

{}

 

- (void)connectionDidFinishLoading:(NSURLConnection *)connection 

{

    //[_waitingDialog dismissWithClickedButtonIndex:0 animated:NO];

    [connection release];

}

-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error

{ 

}

- (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection *)connection{

    return NO;

}

//下面两段是重点，要服务器端单项HTTPS 验证，iOS 客户端忽略证书验证。

- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace {

    return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust];

} 

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {    

    NSLog(@"didReceiveAuthenticationChallenge %@ %zd", [[challenge protectionSpace] authenticationMethod], (ssize_t) [challenge previousFailureCount]);

    

    if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]){

        [[challenge sender]  useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];

        [[challenge sender]  continueWithoutCredentialForAuthenticationChallenge: challenge];

    }

} 

    NSLog(@"get the whole response");

    //[receivedData setLength:0];

}

//处理数据 

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

{ 

} 

 

大家也可以参考下面一篇文章

关于在UIwebView中访问HTTPS站点的几种方法