有没有办法打印unityWebrequest API中的所有请求头？
（我对自动添加的“x-unity-version”和“用户代理”特别感兴趣）
另外，这些头存储在代码中的位置？
最佳答案
这些标题存储在代码中的位置？
它们被自动添加到原生端（C++）上的变量。从Unity5.6.03f版本开始，您无法访问这些头文件，这些头文件会自动添加到带有官方API的UnityWebRequestAPI中。您甚至不能使用反射来执行此操作，因为它只有写功能，而没有读功能。
有没有办法打印unityWebrequest API中的所有请求头？
是的，但是这很棘手，因为你不能用官方的api或者反射来实现这一点。
您必须在另一个HttpListener中创建一个Thread本地服务器，用UnityWebRequest连接到它，然后从HttpListenerRequestapi的HttpListener中检索所有头并将它们存储在List中，然后关闭HttpListener服务器。
volatile bool serverIsReady = false;
//Holds List of all the headers from received from UnityWebRequest request
List<HeaderInfo> headers = new List<HeaderInfo>();
void Start()
{
StartCoroutine(getUnityWebRequestHeaders());
}
IEnumerator getUnityWebRequestHeaders()
{
//Start Http Server
ThreadPool.QueueUserWorkItem(new WaitCallback(RunInNewThread), new string[] { "http://*:8080/" });
//Wait for server to actually start
while (!serverIsReady)
yield return null;
Debug.LogWarning("Server is ready");
yield return new WaitForSeconds(0.2f);
UnityWebRequest www = UnityWebRequest.Post("http://localhost:8080", "");
yield return www.Send();
//Check if connections was successfull
if (!www.isError && www.downloadHandler.text.Contains("SUCCESS"))
{
Debug.LogWarning("Connection was successfull");
}
//Show all the headers from UnityWebRequest
for (int i = 0; i < headers.Count; i++)
{
Debug.Log("KEY: " + headers[i].header + " - VALUE: " + headers[i].value);
}
}
private void RunInNewThread(object a)
{
//Cast parameter back to string array
string[] serverPrefix = (string[])a;
//Start server with the provided parameter
SimpleListenerExample(serverPrefix);
}
//Creates a http server
public void SimpleListenerExample(string[] prefixes)
{
serverIsReady = false;
if (!HttpListener.IsSupported)
{
Debug.LogWarning("Windows XP SP2 or Server 2003 is required to use the HttpListener class.");
return;
}
//URI prefixes are required,
//for example "http://contoso.com:8080/index/".
if (prefixes == null || prefixes.Length == 0)
throw new ArgumentException("prefixes");
//Create a listener.
HttpListener listener = new HttpListener();
//Add the prefixes.
foreach (string s in prefixes)
{
listener.Prefixes.Add(s);
}
listener.Start();
Debug.LogWarning("Listening...");
serverIsReady = true;
//Note: The GetContext method blocks while waiting for a request.
HttpListenerContext context = listener.GetContext();
HttpListenerRequest request = context.Request;
//Obtain a response object.
HttpListenerResponse response = context.Response;
//Construct a response.
string responseString = "<HTML><BODY>SUCCESS</BODY></HTML>";
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
//Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
//Get all the headers sent from UnityWebRequest and add them to the List
addHeaders(request);
//You must close the output stream.
output.Close();
listener.Stop();
}
//Get all the headers sent from UnityWebRequest
void addHeaders(HttpListenerRequest request)
{
System.Collections.Specialized.NameValueCollection receivedHeaders = request.Headers;
for (int i = 0; i < receivedHeaders.Count; i++)
{
string key = receivedHeaders.GetKey(i);
string value = receivedHeaders.Get(i);
headers.Add(new HeaderInfo(key, value));
}
}
//Hold header and value
public class HeaderInfo
{
public string header;
public string value;
public HeaderInfo(string header, string value)
{
this.header = header;
this.value = value;
}
}
输出单位为5.6.03F：
键：host-值：localhost:8080
密钥：用户代理-值：unityplayer/5.6.0f3
（UnityWebrequest/1.0，libcurl/7.51.0-dev）
密钥：接受-值：*/*
密钥：接受编码-值：标识
密钥：内容类型-值：application/x-www-form-urlencoded
键：x-unity-version-值：5.6.0f3
键：内容长度-值：0