ios中http 和https 协议的访问
转自： http://www.cnblogs.com/stan0714/archive/2012/03/21/2409872.html
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
{
}