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iPhone上的JSON POST请求（使用HTTPS）

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iPhone上的JSON POST请求（使用HTTPS）,iphone,objective-c,json,ssl,https,Iphone,Objective C,Json,Ssl,Https,我有一个托管的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，但这是我对请求的要求： NSString *jsonRequest = @"{\"username\":\"user\",\"password\":\"letmein\"}"; NSLog(@"Request: %@", jsonRequest); NSURL *url = [NSURL URLWithString:@"https://mydom

我有一个托管的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，但这是我对请求的要求：

    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];
在我收到的数据中，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);
}
在这个回答中，我得到了这样一个信息：

Data: <?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>
这让我走了这么远。如果我不使用它们，我会收到一个返回的错误，上面说：

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

我根本不知道目标C，但尝试将Accept头设置为
application/json
，而不是
application/jsonrequest

修复

更改：

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

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;
    }
}
改变

到

dic是带有对象和键的可变字典。 baseUrl是您的服务器Web服务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"];
我早就试过了。应该是这样吗？只是又做了一次，我还是得到了同样的回答（
application/json
绝对是json数据的正确MIME类型。请参阅您是否确定您的web服务接受url编码格式的数据并以json格式响应？如果您执行curl命令并在obj中编写相同的程序，这将很容易解决问题。如果您发布源代码，尤其是为您的WCF服务配置。此外，您是否尝试访问错误消息中的服务帮助页？不幸的是，我没有编写该服务。我有一个.NET应用程序使用类似的过程完全按照我的要求运行。因此，我知道这不是服务器问题！如果您的服务器中的日志有任何有趣的内容，您可以查看它们吗？我没有acc现在请告诉他们。我知道该服务正在设置并与其他客户端一起工作。顺便说一句，您没有忘记在最后一个方法的最后一行中“返回否”吗？我不确定，我对一个无效的方法返回“是”。记不得为什么了。@ing0您能将这一行翻译成swift plz[请求设置值：@“application/x-www-form-urlencoded”吗forHTTPHeaderField:@“内容类型”]；@QadirHussain抱歉，我没有写太多swift。请查看以下答案： 
- (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;
    }
}

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

NSData *requestData = [jsonRequest dataUsingEncoding:NSUTF8StringEncoding];

 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"];