UniRX网络请求 Http篇 get post
UniRX网络请求 Http篇 get post
前言：unity高版本之后UniRX对于ObservableWWW已经弃用
在网上搜索了一下 结果一个老外具体叫什么忘记了 自己重新对UnityWebRequest封装了一份ObservableWebRequest
具体封装脚本：
这个脚本之前只支持Post以字典方式请求，自己又改了一下 支持Post Json格式请求
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using UniRx;
using UnityEngine;
using UnityEngine.Networking;
#if !UniRxLibrary
using ObservableUnity = UniRx.Observable;
#endif
namespace UniRx.WebRequest
{
public static class ObservableWebRequest
{
public static IObservable<UnityWebRequest> ToRequestObservable(this UnityWebRequest request, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<UnityWebRequest>((observer, cancellation) => Fetch(request, null, observer, progress, cancellation));
}
public static IObservable<string> ToObservable(this UnityWebRequest request, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<string>((observer, cancellation) => FetchText(request, null, observer, progress, cancellation));
}
public static IObservable<byte[]> ToBytesObservable(this UnityWebRequest request, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<byte[]>((observer, cancellation) => Fetch(request, null, observer, progress, cancellation));
}
public static IObservable<string> Get(string url, IDictionary<string, string> headers = null, IProgress<float> progress = null)
{
return
ObservableUnity.FromCoroutine<string>(
(observer, cancellation) =>
FetchText(UnityWebRequest.Get(url), headers, observer, progress, cancellation));
}
public static IObservable<byte[]> GetAndGetBytes(string url, IDictionary<string, string> headers = null, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<byte[]>((observer, cancellation) => FetchBytes(UnityWebRequest.Get(url), headers, observer, progress, cancellation));
}
public static IObservable<UnityWebRequest> GetRequest(string url, IDictionary<string, string> headers = null, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<UnityWebRequest>((observer, cancellation) => Fetch(UnityWebRequest.Get(url), headers, observer, progress, cancellation));
}
public static IObservable<string> Post(string url, Dictionary<string, string> postData,
IDictionary<string, string> headers = null, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<string>((observer, cancellation) => FetchText(UnityWebRequest.Post(url, postData), headers, observer, progress, cancellation));
}
public static IObservable<string> PostJson(string url,string json,
IDictionary<string, string> headers = null, IProgress<float> progress = null)
{
var request = new UnityWebRequest(url, "POST");
var bodyByte= Encoding.UTF8.GetBytes(json);
request.uploadHandler=new UploadHandlerRaw(bodyByte);
request.downloadHandler = new DownloadHandlerBuffer();
request.SetRequestHeader("Content-Type","application/json");
return ObservableUnity.FromCoroutine<string>((observer, cancellation) => FetchText(request, headers, observer, progress, cancellation));
}
public static IObservable<byte[]> PostAndGetBytes(string url, Dictionary<string, string> postData, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<byte[]>((observer, cancellation) => FetchBytes(UnityWebRequest.Post(url, postData), null, observer, progress, cancellation));
}
public static IObservable<byte[]> PostAndGetBytes(string url, Dictionary<string, string> postData, IDictionary<string, string> headers, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<byte[]>((observer, cancellation) => FetchBytes(UnityWebRequest.Post(url, postData), headers, observer, progress, cancellation));
}
public static IObservable<UnityWebRequest> PostRequest(string url, Dictionary<string, string> postData, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<UnityWebRequest>((observer, cancellation) => Fetch(UnityWebRequest.Post(url, postData), null, observer, progress, cancellation));
}
public static IObservable<UnityWebRequest> PostRequest(string url, Dictionary<string, string> postData, IDictionary<string, string> headers, IProgress<float> progress = null)
{
return ObservableUnity.FromCoroutine<UnityWebRequest>((observer, cancellation) => Fetch(UnityWebRequest.Post(url, postData), headers, observer, progress, cancellation));
}
public static IObservable<AssetBundle> LoadFromCacheOrDownload(string url, uint version, uint crc, IProgress<float> progress = null)
{
return null;// ObservableUnity.FromCoroutine((observer, cancellation) => FetchAssetBundle(UnityWebRequest.GetAssetBundle(url, version, crc),null, observer, progress, cancellation));
}
static IEnumerator Fetch<T>(UnityWebRequest request, IDictionary<string, string> headers, IObserver<T> observer,
IProgress<float> reportProgress, CancellationToken cancel)
{
if (headers != null)
{
foreach (var header in headers)
{
request.SetRequestHeader(header.Key, header.Value);
}
}
if (reportProgress != null)
{
var operation = request.SendWebRequest();
while (!operation.isDone && !cancel.IsCancellationRequested)
{
try
{
reportProgress.Report(operation.progress);
}
catch (Exception ex)
{
observer.OnError(ex);
yield break;
}
yield return null;
}
}
else
{
yield return request.SendWebRequest();
}
if (cancel.IsCancellationRequested)
{
yield break;
}
if (reportProgress != null)
{
try
{
reportProgress.Report(request.downloadProgress);
}
catch (Exception ex)
{
observer.OnError(ex);
yield break;
}
}
}
static IEnumerator FetchRequest(UnityWebRequest request, IDictionary<string, string> headers, IObserver<UnityWebRequest> observer,
IProgress<float> reportProgress, CancellationToken cancel)
{
using (request)
{
yield return Fetch(request, headers, observer, reportProgress, cancel);
if (cancel.IsCancellationRequested)
{
yield break;
}
if (!string.IsNullOrEmpty(request.error))
{
observer.OnError(new UnityWebRequestErrorException(request));
}
else
{
observer.OnNext(request);
observer.OnCompleted();
}
}
}
static IEnumerator FetchText(UnityWebRequest request, IDictionary<string, string> headers, IObserver<string> observer,
IProgress<float> reportProgress, CancellationToken cancel)
{
using (request)
{
yield return Fetch(request, headers, observer, reportProgress, cancel);
if (cancel.IsCancellationRequested)
{
yield break;
}
if (!string.IsNullOrEmpty(request.error))
{
observer.OnError(new UnityWebRequestErrorException(request));
}
else
{
var text = System.Text.Encoding.UTF8.GetString(request.downloadHandler.data);
observer.OnNext(text);
observer.OnCompleted();
}
}
}
static IEnumerator FetchAssetBundle(UnityWebRequest request, IDictionary<string, string> headers, IObserver<AssetBundle> observer,
IProgress<float> reportProgress, CancellationToken cancel)
{
using (request)
{
yield return Fetch(request, headers, observer, reportProgress, cancel);
if (cancel.IsCancellationRequested)
{
yield break;
}
if (!string.IsNullOrEmpty(request.error))
{
observer.OnError(new UnityWebRequestErrorException(request));
}
else
{
var handler = request.downloadHandler as DownloadHandlerAssetBundle;
var assetBundle = (handler != null) ? handler.assetBundle : null;
observer.OnNext(assetBundle);
observer.OnCompleted();
}
}
}
static IEnumerator FetchBytes(UnityWebRequest request, IDictionary<string, string> headers, IObserver<byte[]> observer,
IProgress<float> reportProgress, CancellationToken cancel)
{
using (request)
{
yield return Fetch(request, headers, observer, reportProgress, cancel);
if (cancel.IsCancellationRequested)
{
yield break;
}
if (!string.IsNullOrEmpty(request.error))
{
observer.OnError(new UnityWebRequestErrorException(request));
}
else
{
observer.OnNext(request.downloadHandler.data);
observer.OnCompleted();
}
}
}
}
public class UnityWebRequestErrorException : Exception
{
public string RawErrorMessage { get; private set; }
public bool HasResponse { get; private set; }
public string Text { get; private set; }
public System.Net.HttpStatusCode StatusCode { get; private set; }
public System.Collections.Generic.Dictionary<string, string> ResponseHeaders { get; private set; }
public UnityWebRequest Request { get; private set; }
// cache the text because if www was disposed, can't access it.
public UnityWebRequestErrorException(UnityWebRequest request)
{
this.Request = request;
this.RawErrorMessage = request.error;
this.ResponseHeaders = request.GetResponseHeaders();
this.HasResponse = false;
StatusCode = (System.Net.HttpStatusCode)request.responseCode;
if (request.downloadHandler != null)
{
Text = request.downloadHandler.text;
}
if (request.responseCode != 0)
{
this.HasResponse = true;
}
}
public override string ToString()
{
var text = this.Text;
if (string.IsNullOrEmpty(text))
{
return RawErrorMessage;
}
else
{
return RawErrorMessage + " " + text;
}
}
}
}
使用方法：
1.下面是Josn方式请求示例
接口形式：
Dictionary<string, string> AlarmDic = new Dictionary<string, string>();
AlarmDic["captcha"] = "value";
AlarmDic["password"] = "123456";
AlarmDic["username"] = "admin";
ObservableWebRequest.PostJson("URL",JsonMapper.ToJson(AlarmDic)).Subscribe(OnPostResultCallBack);
///请求成功后的回调 返回数据
privect void OnPostResultCallBack(string result)
{
Debug.Log(result);
}
以上方法支持传输表头传送表头
2.有表头的Get请求
ObservableWebRequest.Get("URL", new Dictionary<string, string> (){ { "key", "value" } }).Subscribe(OnGetResultCallBack);
private void OnGetResultCallBack(string result)
{
Debug.Log(result);
}
3.获取byte[] 的Get请求 支持多个请求同时发送
接口形式：
for (int i = 0; i < 100; i++)
{
ObservableWebRequest.GetAndGetBytes("FileUrl+TempTest2").Subscribe(OnLoadByteArrCallBack);
}
///每次请求回来都会调用 异步处理
privte void OnLoadByteArrCallBack(byte[] result)
{
Texture2D texture = new Texture2D(0, 0);
texture.LoadImage(result);
}
4.上传二进制文件 由于懒得封装了 直接扩展在外面了
这个可能看着会复杂点 首先看下 接口的规则
private void UploadBytes()
{
WWWForm form = new WWWForm();
form.AddBinaryData("fileData","byte[] 数据","path");
form.AddField("fileType", "1");
form.AddField("id", id);
var request = UnityWebRequest.Post("URL", form);
Dictionary<string, string> headers = new Dictionary<string, string>();
headers["key"] ="value";
request.SetRequestHeader(item.Key, item.Value);
request.ToObservable().Subscribe(r => { Debug.Log(r); selectPhotoText.text = "上传完成"; });
}
为啥unity自己有unityWebRequst 我们不用 费劲巴拉的整这个 是因为 UniRx的异步操作非常sao气 同时请求多个的时候 可以分别获取想要的结果
而unityWebRequst如果同时请求多个的话，只返回一个 你无法同时拿到返回结果 ，相信在实际开发过程中有些朋友经常会遇到这个问题。
好啦 就先这么多， 有时间在补充！