Unity中UnityWebRequest的使用_unitywebrequest local

仅下载文件存至本地

仅下载文件存至本地推荐使用DownloadHandlerFile

public IEnumerator DownFile()
{
	//下载路径
	string url = "";
	//存储的本地路径
	string localurl = "";
	UnityWebRequest WebRequest = new UnityWebRequest(url);
	DownloadHandlerFile  Download  = new DownloadHandlerFile(localurl);
	WebRequest.downloadHandler = Download;
	yield return WebRequest.SendWebRequest();
	//等待资源下载完成
	while(!WebRequest.isDone)
	{
		yield return null;
	}
	 if(string.IsNullOrEmpty( WebRequest.error))
	 {
	 	//文件下载成功
	 }
	 else
	 {
	 	//文件下载失败
	 }
}

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读取图片

读取图片推荐使用DownloadHandlerTexture

public IEnumerator DownTexture()
{
	/*
	读取的包外路径
	当为安卓环境时需添加前缀  file://
	路径需要包含文件的后缀名
	*/
	string url = "";
	UnityWebRequest WebRequest = new UnityWebRequest(url);
	DownloadHandlerTexture  Download  = new DownloadHandlerTexture();
	WebRequest.downloadHandler = Download;
	yield return WebRequest.SendWebRequest();
	//等待资源下载完成
	while(!WebRequest.isDone)
	{
		yield return null;
	}
	if(string.IsNullOrEmpty( WebRequest.error))
	{
	 	//文件下载成功
	 	//读取的图片
		Texture2D rexture = Download.texture;
	}
	else
	{
	 	//文件下载失败
	}
}

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读取文件

读取文件推荐使用DownloadHandlerBuffer

public IEnumerator DownBuffer()
{
	/*
	读取的包外路径
	当为安卓环境时需添加前缀  file://
	路径需要包含文件的后缀名
	*/
	string url = "";
	UnityWebRequest WebRequest = new UnityWebRequest(url);
	DownloadHandlerBuffer  Download  = new DownloadHandlerBuffer();
	WebRequest.downloadHandler = Download;
	yield return WebRequest.SendWebRequest();
	//等待资源下载完成
	while(!WebRequest.isDone)
	{
		yield return null;
	}
	if(string.IsNullOrEmpty( WebRequest.error))
	{
	 	//文件读取成功
	 	//读取的数据
		var data = Download.data;
	}
	else
	{
	 	//文件读取失败
	}
}

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Post请求

public IEnumerator Post_Demo()
{
	//Post请求的地址
	string url = "";
	//Post请求的参数
	WWWForm form = new WWWForm();
	form.Add("key1","value1");
	form.Add("key2","value2");
	UnityWebRequest webRequest = UnityWebRequest.Post(url,	form);
	//发送请求
	yield return webRequest.SendWebRequest();
	if(string.IsNullOrEmpty( webRequest.error))
	{
	 	//Post的请求成功
	 	//Post请求的返回参数
		var data = webRequest.downloadHandler.text;
	}
	else
	{
	 	//Post的请求失败
	}
}

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GET请求

public IEnumerator Get_Demo()
{
	//Get请求的地址
	string url = "";
	UnityWebRequest webRequest = UnityWebRequest.Get(url,	form);
	//发送请求
	yield return webRequest.SendWebRequest();
	//等待请求完成
	while(!webRequest.isDone)
	{
		yield return null;
	}
	if(string.IsNullOrEmpty( webRequest.error))
	{
	 	//Get的请求成功
	 	//Get请求的返回参数
		var data = webRequest.downloadHandler.text;
	}
	else
	{
	 	//Get的请求失败
	}
}
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