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iPhone上的json post请求(使用https)

https ssl json objective-c iphone

ingh.am · 技术社区 · 14 年前

我托管了一个WCF服务,我正试图在iPhone应用程序中使用它作为JSON Post请求。我计划稍后使用JSON序列化程序,但这就是我对请求的理解:

    NSString *jsonRequest = @"{\"username\":\"user\",\"password\":\"letmein\"}";
    NSLog(@"Request: %@", jsonRequest);

    NSURL *url = [NSURL URLWithString:@"https://mydomain.com/Method/"];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
    NSData *requestData = [NSData dataWithBytes:[jsonRequest UTF8String] length:[jsonRequest length]];

    [request setHTTPMethod:@"POST"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setValue:[NSString stringWithFormat:@"%d", [requestData length]] forHTTPHeaderField:@"Content-Length"];
    [request setHTTPBody: requestData];

    [NSURLConnection connectionWithRequest:[request autorelease] delegate:self];

在收到的数据中,我只是将其打印到控制台:

- (void) connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    NSMutableData *d = [[NSMutableData data] retain];
    [d appendData:data];

    NSString *a = [[NSString alloc] initWithData:d encoding:NSASCIIStringEncoding];

    NSLog(@"Data: %@", a);
}

在这个回复中,我得到了这样的信息:

Data: Ã¯Â»Â¿<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>Request Error</title>
    <style>
        <!-- I've took this out as there's lots of it and it's not relevant! -->
    </style>
  </head>
  <body>
    <div id="content">
      <p class="heading1">Request Error</p>
      <p xmlns="">The server encountered an error processing the request. Please see the <a rel="help-page" href="https://mydomain.com/Method/help">service help page</a> for constructing valid requests to the service.</p>
    </div>
  </body>
</html>

有人知道为什么会发生这种事吗?我哪里出错了?

我读过关于使用 ASIHTTPPost 但是我不能让演示在iOS4中运行:(

谢谢

编辑:

我只是习惯了 CharlesProxy 当我从iphone(模拟器)打电话时,为了嗅出发生了什么,这就是它给我的: alt text

~~唯一奇怪的是,我注意到它说“没有为这个主机启用SSL代理:在代理设置、SSL位置中启用”。有人知道这是什么意思吗?~~ (这也发生在我工作的Windows客户机中)。

我刚刚在我的Windows客户机上运行了这个程序,唯一不同的是请求和响应文本是加密的。为了使用安全的HTTP连接,我是否缺少某些内容?

新编辑: 这适用于非HTTPS请求,例如: http://maps.googleapis.com/maps/api/geocode/json?address=UK&sensor=true . 所以我想问题是让iPhone通过SSL正确地发送帖子?

我也在使用这些方法:

- (void) connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
    if([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust])
    {
        [challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]
        forAuthenticationChallenge:challenge];
    }

    [challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge];
}

- (void) connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace
{
    if([[protectionSpace authenticationMethod] isEqualToString:NSURLAuthenticationMethodServerTrust])
    {
        return YES;
    }
}

这让我走得这么远。如果我不使用它们,我会收到一个错误消息,说:

此服务器的证书无效。您可能正在连接一个假装为mydomain.com的服务器,这可能会使您的机密信息处于危险之中。

4 回复 | 直到 10 年前

ingh.am 14 年前

固定的!

改变:

[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];

到:

[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

您还需要以下两种方法:

- (void) connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
    if([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust])
    {
        [challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]
        forAuthenticationChallenge:challenge];
    }

    [challenge.sender continueWithoutCredentialForAuthenticationChallenge:challenge];
}

- (void) connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace
{
    if([[protectionSpace authenticationMethod] isEqualToString:NSURLAuthenticationMethodServerTrust])
    {
        return YES;
    }
}

Jon 14 年前

我根本不知道目标C,但是尝试将接受头设置为 application/json 而不是 application/jsonrequest 。

Maulik Vekariya 11 年前

改变

NSData *requestData = [NSData dataWithBytes:[jsonRequest UTF8String] length:[jsonRequest length]];

到

NSData *requestData = [jsonRequest dataUsingEncoding:NSUTF8StringEncoding];

Vibhooti 10 年前

dic是具有对象和键的不可变字典。 baseurl是您的服务器WebService URL。

 NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dic
                                                       options:NSJSONWritingPrettyPrinted error:nil];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
   NSString *encodedString = [jsonString base64EncodedString];

    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@wsName",baseUrl]];
    NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
    [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    [theRequest setHTTPMethod:@"POST"];
    [theRequest setValue:encodedString forHTTPHeaderField:@"Data"];