iPhone 上的 JSON POST 请求（使用 HTTPS）
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JSON POST Request on the iPhone (Using HTTPS)
提问by ingh.am
I have a WCF service hosted and I'm trying to use it within an iPhone app as a JSON POST request. I plan on using the JSON serializer later, but this is what I have for the request:
我有一个 WCF 服务托管，我试图在 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，但这就是我的请求：
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];
In my data received I'm just printing it to the console:
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);
}
And within this response I get this message:
在这个回复中，我收到了这条消息：
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>
Does anyone know why this happens and where I'm going wrong?
有谁知道为什么会发生这种情况以及我哪里出错了？
I've read about using ASIHTTPPostinstead but I can't get the demo to run in iOS4 :(
我读过有关使用ASIHTTPPost 的信息，但我无法在 iOS4 中运行演示 :(
Thanks
谢谢
EDIT:
编辑：
I've just used to CharlesProxyto sniff out what's happening when I call from the iPhone (Simulator) and this is what it gave me:
我刚刚使用CharlesProxy来嗅探从 iPhone（模拟器）调用时发生的事情，这就是它给我的：
The only thing strange I've noticed is it says "SSL Proxying not enabled for this host: enable in Proxy Settings, SSL locations". Does anyone know what this means?(This also happens in my working windows client).
我注意到的唯一奇怪的是它说“未为此主机启用 SSL 代理：在代理设置、SSL 位置中启用”。有谁知道这是什么意思？（这也发生在我工作的 Windows 客户端中）。
I've just ran this on my windows client and the only thing that is different is the Request and Response text which is encrypted. Am I missing something in order to use a secure HTTP connection to do this?
我刚刚在我的 Windows 客户端上运行了它，唯一不同的是加密的请求和响应文本。为了使用安全的 HTTP 连接来执行此操作，我是否遗漏了什么？
NEW EDIT: This works with a non-HTTPS request such as: http://maps.googleapis.com/maps/api/geocode/json?address=UK&sensor=true. So I guess the problem is getting the iPhone to send the POST properly over SSL?
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。所以我猜问题是让 iPhone 通过 SSL 正确发送 POST？
I am also using these methods:
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;
}
}
This allows me to get this far. If I don't use them I get an error sent back saying:
这使我能够走到这一步。如果我不使用它们，我会收到一条错误消息：
The certificate for this server is invalid. You might be connecting to a server that is pretending to be “mydomain.com” which could put your confidential information at risk.
此服务器的证书无效。您可能正在连接到一个伪装成“mydomain.com”的服务器，这可能会使您的机密信息处于危险之中。
回答by ingh.am
FIXED!
固定的！
Changed:
更改：
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
to:
到：
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
You also need these two methods:
您还需要这两种方法：
- (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;
}
}
回答by Jon
I don't know Objective C at all, but try setting the Accept header to application/jsoninstead of application/jsonrequest.
我根本不知道 Objective C，但尝试将 Accept 标头设置为application/json而不是application/jsonrequest.
回答by Maulik Vekariya
change
改变
NSData *requestData = [NSData dataWithBytes:[jsonRequest UTF8String] length:[jsonRequest length]];
to
到
NSData *requestData = [jsonRequest dataUsingEncoding:NSUTF8StringEncoding];
回答by Vibhooti
dic is NSMutable Dictionary with object and keys. baseUrl is your server webservice url.
dic 是带有对象和键的 NSMutable 字典。baseUrl 是您的服务器网络服务 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"];
