Unity 基础之 UnityWebRequest Post 的简单封装使用

朱雀 2022-09-11 11:21 588阅读 0赞

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Unity 基础 之 UnityWebRequest Post 的简单封装使用

一、简单介绍

Unity中的一些知识点整理。

本节简单介绍在Unity开发中的，使用 UnityWebRequest，进行 Post 请求，值得注意的是，根据不同的请求头，注意传入不同的数据格式就好，如果你有新的方式也可以留言，多谢。

具体可参见 Unity 官网 UnityWebRequest 介绍

[Unity - Manual: UnityWebRequest][Unity - Manual_ UnityWebRequest]

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5LuZ6a2BWEFO_size_20_color_FFFFFF_t_70_g_se_x_16 1][]

二、实现原理

1、UnityWebRequest(url, "POST") 进行 Post 请求

2、UnityWebRequest.uploadHandler = new UploadHandlerRaw(postBytes); //添加数据  
      UnityWebRequest.downloadHandler = new DownloadHandlerBuffer(); // 数据Buffer  
      UnityWebRequest.SetRequestHeader("Content-Type", requestHeaderStr);// 请求头设置

三、注意事项

1、注意请求头设置不同，传入的数据格式会有所区别

2、注意字符串转为字节数组

四、效果预览

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5LuZ6a2BWEFO_size_20_color_FFFFFF_t_70_g_se_x_16 2][]

五、实现步骤

1、打开Unity，新建工程

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5LuZ6a2BWEFO_size_20_color_FFFFFF_t_70_g_se_x_16 3][]

2、编写脚本，实现 UnityWebRequest  Post 功能

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3、把 测试脚本挂载场景中

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5LuZ6a2BWEFO_size_20_color_FFFFFF_t_70_g_se_x_16 5][]

4、运行场景，效果如上

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5LuZ6a2BWEFO_size_20_color_FFFFFF_t_70_g_se_x_16 6][]

六、关键代码

1、TestUnityWebRequestPostSimpleWrapper

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    
    namespace XANUtils.TestSpace
    { 
    
    	public class TestUnityWebRequestPostSimpleWrapper : MonoBehaviour
    	{
    		// Start is called before the first frame update
    		void Start()
    		{
    			Test();
    		}
    
    		void Test() {
    			UnityWebRequestPostSimpleWrapper postSimpleWrapper = new UnityWebRequestPostSimpleWrapper(this);
    
    			//请求头 Form 表单格式 Post
    			postSimpleWrapper.StartUnityWebRequestPost("你的网址",
    				"你的类似格式数据：password=12345",                       // 更加请求头不同，Post Data 数据不同
    				"application/x-www-form-urlencoded",    // form 格式
    				(isNotError,responseStr)=> {
    					if (isNotError)
    					{
    						Debug.Log(GetType() + "/Test()/ responseStr : " + responseStr);
    						Debug.Log(GetType() + "/Test()/ 解析 responseStr ... " );
    					}
    					else {
    						Debug.Log(GetType() + "/Test()/ error : " + responseStr);
    						Debug.Log(GetType() + "/Test()/ 针对报错，检查处理 ... ");
    					}
    				});
    
    			//请求头 Json 表单格式 Post
    			postSimpleWrapper.StartUnityWebRequestPost("你的网址",
    				"你的类似格式数据：{\"password\":\"12345\"}", // 更加请求头不同，Post Data 数据不同
    				"application/json",			// json 格式
    				(isNotError, responseStr) => {
    					if (isNotError)
    					{
    						Debug.Log(GetType() + "/Test()/ responseStr : " + responseStr);
    						Debug.Log(GetType() + "/Test()/ 解析 responseStr ... ");
    					}
    					else
    					{
    						Debug.Log(GetType() + "/Test()/ error : " + responseStr);
    						Debug.Log(GetType() + "/Test()/ 针对报错，检查处理 ... ");
    					}
    				});
    		}
    	}
    }

2、UnityWebRequestPostSimpleWrapper

using System;
    using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEngine.Networking;
    
    namespace XANUtils { 
    
    	public class UnityWebRequestPostSimpleWrapper 
    	{
    		private MonoBehaviour mMono;
    		public UnityWebRequestPostSimpleWrapper(MonoBehaviour mono) {
    			mMono = mono;
    		}
    
    		public Coroutine StartUnityWebRequestPost(string url, string postData, string requestHeaderStr, Action<bool, string> onPostCallback) {
                if (mMono==null)
                {
    				Debug.LogError(GetType()+ "/StartUnityWebRequestPost()/ mMono can not be null");
    				return null;
                }
    
    			return mMono.StartCoroutine(UnityWebRequestPost(url, postData, requestHeaderStr, onPostCallback));
    		}
    
    		IEnumerator UnityWebRequestPost(string url, string postData,string requestHeaderStr, Action<bool,string> onPostCallback)
    		{
    			
    			using (UnityWebRequest webRequest = new UnityWebRequest(url, "POST"))
    			{
    				Debug.Log(GetType() + "/UnityWebRequestPost()/ url : " + webRequest.url);
    				Debug.Log(GetType() + "/UnityWebRequestPost()/ postData : " + postData);
    
    				byte[] postBytes = System.Text.Encoding.UTF8.GetBytes(postData);
    				webRequest.uploadHandler = new UploadHandlerRaw(postBytes);
    				webRequest.downloadHandler = new DownloadHandlerBuffer();
    				webRequest.SetRequestHeader("Content-Type", requestHeaderStr); 
    
    				yield return webRequest.SendWebRequest();
    				string response = null;
    				if (webRequest.isNetworkError || webRequest.isHttpError )
    				{
    					response = webRequest.error;
    					Debug.LogError(GetType() + "/UnityWebRequestPost()/ error : " + webRequest.error);
    
    					if (onPostCallback != null)
    					{
    						onPostCallback.Invoke(false, response);
    
    					}
    				}
    				else
    				{
    
    					response = webRequest.downloadHandler.text;
    					
    					Debug.Log(GetType() + "/UnityWebRequestPost()/ success : " + response);
    
    					if (onPostCallback != null)
    					{
    						onPostCallback.Invoke(true, response);
    
    					}
    				}
    			}
    
    		}
    	}
    }

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[Unity - Manual_ UnityWebRequest]: https://docs.unity3d.com/540/Documentation/Manual/UnityWebRequest.html
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