Unity的WWW请求的几种方式解析

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通过剖析Unity发现： Unity中WWW的web请求方式其实都是通过UnityWebRequest来实现的

代码语言：javascript复制

 private UnityWebRequest _uwr;

一.WWW的Get请求实现：

代码语言：javascript复制

public WWW(string url)
        {
            _uwr = UnityWebRequest.Get(url);
            _uwr.SendWebRequest();
        }

二.WWW的Post请求实现：

1.WWWForm表单：

代码语言：javascript复制

 public WWW(string url, WWWForm form)
        {
            _uwr = UnityWebRequest.Post(url, form);
            _uwr.chunkedTransfer = false;
            _uwr.SendWebRequest();
        }

2.byte数组：

代码语言：javascript复制

public WWW(string url, byte[] postData)
        {
            _uwr = new UnityWebRequest(url, UnityWebRequest.kHttpVerbPOST);
            _uwr.chunkedTransfer = false;
            UploadHandler formUploadHandler = new UploadHandlerRaw(postData);
            formUploadHandler.contentType = "application/x-www-form-urlencoded";
            _uwr.uploadHandler = formUploadHandler;
            _uwr.downloadHandler = new DownloadHandlerBuffer();
            _uwr.SendWebRequest();
        }

代码语言：javascript复制

   public WWW(string url, byte[] postData, Dictionary<string, string> headers)
        {
            var verb = postData == null ? UnityWebRequest.kHttpVerbGET : UnityWebRequest.kHttpVerbPOST;
            _uwr = new UnityWebRequest(url, verb);
            _uwr.chunkedTransfer = false;
            UploadHandler formUploadHandler = new UploadHandlerRaw(postData);
            formUploadHandler.contentType = "application/x-www-form-urlencoded";
            _uwr.uploadHandler = formUploadHandler;
            _uwr.downloadHandler = new DownloadHandlerBuffer();
            foreach (var header in headers)
                _uwr.SetRequestHeader(header.Key, header.Value);
            _uwr.SendWebRequest();
        }

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