iPhone 上的“不受信任的服务器证书”

我正在编写一个 iPhone 应用程序，我想连接到“HTTPS”服务器以获取一些信息。但是，我在控制台中收到错误

NSUnderlyingError = 错误域=kCFErrorDomainCFNetwork 代码=-1202 UserInfo=0x3e95cf0 "此服务器的证书无效。您 可能正在连接到冒充“example.com”的服务器 这可能会使您的机密信息面临风险。”; }

如何信任证书并获取http状态代码200

以下是我的代码。

    NSMutableURLRequest *request_get2 = [[[NSMutableURLRequest alloc] init] autorelease];
    [request_get2 setURL:[NSURL URLWithString:@"https://www.example.com"]]; 
    [request_get2 setHTTPMethod:@"GET"];
    [request_get2 setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    //[request_get2 setValue:@"text/html; charset=UTF-8" forHTTPHeaderField:@"Content-Type"];
    [request_get2 setValue:@"https://www.example.com" forHTTPHeaderField:@"Referer"];
    [request_get2 setHTTPShouldHandleCookies:YES];
    // cookiesString is in format "cookieName=cookieValue;"
    [request_get2 setValue: (NSString *) cookiesString forHTTPHeaderField:@"Cookie"];


    // doGet - response
    NSHTTPURLResponse *response_get2 = nil;  // it change from 'NSURLRespaonse' to 'NSHTTPURLResponse'
    NSError *error_get2 = nil;
    NSData *responseData_get2 = [NSURLConnection sendSynchronousRequest:request_get2 returningResponse:&response_get2 error:&error_get2];
    NSString *data_get2 = [[NSString alloc]initWithData:responseData_get2 encoding:NSUTF8StringEncoding];

    if (!error_get2) {
        NSString *responseURL_get2 = [[response_get2 URL] absoluteString];           // null value
        NSString *responseTextEncodingName_get2 = [response_get2 textEncodingName];  // null value
        NSString *responseMIMEType_get2 = [response_get2 MIMEType];                  // null value
        NSUInteger *responseStatusCode_get2 = [response_get2 statusCode]; //[responseStatusCode intValue]; // the status code is 0
    }
    else {
        NSLog(@"\nsomething went wrong: %@\n", [error_get2 userInfo]); // got the error in here
    }

我认为添加不受信任的证书（至少在模拟器中）是不可能的，但是您可以告诉您的 NSURLConnection 委托接受自签名证书（或通常不受信任的证书）

以下链接帮助我解决了这个问题！

如何使用 NSURLConnection 与 SSL 连接以获得不受信任的证书？ https://stackoverflow.com/questions/933331/how-to-use-nsurlconnection-to-connect-with-ssl-for-an-untrusted-cert