使用ASIHTTPRequest来实现用户登录，但是无论如何登陆的用户总是同一个

- (IBAction)signin:(id)sender

{……..

ASIFormDataRequest *request = [ASIFormDataRequestrequestWithURL:loginUrl];

[request setDelegate:self];

[request setRequestMethod:@"POST"];

[request setPostValue:username.textforKey:@"username"];

[request setPostValue:password.textforKey:@"password"];

[request startAsynchronous];

[request setDidFailSelector:@selector(requestLoginFailed:)];

[request setDidFinishSelector:@selector(requestLoginFinished:)];

}

实现登陆的Delegate

- (void)requestLoginFinished:(ASIHTTPRequest *)request

{

NSDictionary *loginResponse = [[request responseString] objectFromJSONString];

NSLog(@"login info->%@",loginResponse);

}


但是NSLog的结果总是同一用户，解决方式是，清除Cookie，ASIHTTPRequest登陆的模式和浏览器是相似的，会保存Cookie。所以需要在每次登陆前清理。但是在SignOut时清理是不行的。

[ASIHTTPRequestsetSessionCookies:nil];