ios中http 和https 協議的訪問

最近做個項目，開始採用的是HTTP協議實現用戶端和伺服器端的互動，後來需要改成HTTPS協議。在修改的過程中發現了一些問題，解決方案如下：

 

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

事件觸發 

{ 

    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];

    //佈建要求方式為get

    [request setHTTPMethod:@"GET"];

    //添加使用者會話id

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

    //串連發送請求

    finished = false;

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

//堵塞線程，等待結束

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;

}

//下面兩段是重點，要伺服器端單項HTTPS 驗證，iOS 用戶端忽略認證驗證。

- (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];

}

//處理資料 

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

{ 

} 

 

大家也可以參考下面一篇文章

關於在UIwebView中訪問HTTPS網站的幾種方法