UnityWebRequest
https://jsonplaceholder.typicode.com
에서 UnityWebRequest 하여 Json 데이터를 가져온다.
웹 통신하기 위해 타입과 정보를 갱신하기 위한 클래스 HttpManager
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEditor.PackageManager.Requests;
using UnityEngine;
using UnityEngine.Networking;
// json 값을 저장해주는 키값
[Serializable]
public class JsonList<T>
{
public List<T> data;
}
// json 데이터를 담을 수 있는 구조체
[Serializable]
public struct commentInfo
{
public int PostId;
public int id;
public string name;
public string email;
public string body;
}
[Serializable]
public struct SignUpInfo
{
public string userName;
public string birthday;
public int age;
}
public enum RequestType
{
GET, POST, PUT, DELETE,TEXTURE
}
// 웹 통신하기 위한 정보
public class HttpInfo
{
public RequestType requestType;
public string url ="";
public string body;
public Action<DownloadHandler> onReceive;
public void Set(
RequestType type, string u, Action<DownloadHandler> callback,bool useDefault=true)
{
requestType = type;
if(useDefault) url = "https://jsonplaceholder.typicode.com" + u;
url += u;
onReceive = callback;
}
}
public class HttpManager : MonoBehaviour
{
static public HttpManager instance;
public static HttpManager Get()
{
if (instance == null)
{
GameObject go = new GameObject("HttpStudy");
go.AddComponent<HttpManager>();
}
return instance;
}
private void Start()
{
if (instance == null)
{
instance = this;
DontDestroyOnLoad(gameObject);
}
}
public void SendERequest(HttpInfo httpinfo)
{
StartCoroutine(COSendRequest(httpinfo));
}
IEnumerator COSendRequest(HttpInfo httpinfo)
{
UnityWebRequest req = null;
// POST, GET, PUT, DELETE 분기
switch (httpinfo.requestType)
{
// 데이터 가져올떄
case RequestType.GET:
req = UnityWebRequest.Get(httpinfo.url);
break;
// 데이터 보낼때
case RequestType.POST:
req = UnityWebRequest.Post(httpinfo.url, httpinfo.body);
byte[] byteBody = Encoding.UTF8.GetBytes(httpinfo.body);
req.uploadHandler = new UploadHandlerRaw(byteBody);
// 헤더 추가, 헤더를 맞춰줘야 함.
req.SetRequestHeader("Content-Type", "application/json");
break;
case RequestType.PUT:
req = UnityWebRequest.Put(httpinfo.url, httpinfo.body);
break;
case RequestType.DELETE:
req = UnityWebRequest.Delete(httpinfo.url);
break;
case RequestType.TEXTURE:
req = UnityWebRequestTexture.GetTexture(httpinfo.url);
break;
}
//서버에 요청을 보내고 응답이 올때까지 양보한다
yield return req.SendWebRequest();
if (req.result == UnityWebRequest.Result.Success)
{
//print("네트워크 응답 : " + req.downloadHandler.text);
if(httpinfo.onReceive != null)
{
httpinfo.onReceive(req.downloadHandler);
}
}
else print("네트워크 에러 : " + req.error);
}
}
POST
PUT
DELETE
Texture 가져오기
Texture는 json 데이터로 가져오지 못하기 때문에 ((DownloadHandlerTexture)downloadHandler) 형 변환을 해준다.
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// button
public void OnClickDownloadimage()
{
// https://via.placeholder.com/150/92c952
HttpInfo info = new HttpInfo();
info.Set(RequestType.TEXTURE, "https://via.placeholder.com/150/92c952", OncompleteDownloadTexture, false);
HttpManager.Get().SendERequest(info);
}
// 텍스쳐는 json 형태가 아니므로 이런식으로 parsing
void OncompleteDownloadTexture(DownloadHandler downloadHandler)
{
// 다운로드된 image 데이터를 sprite로 만든다.
// texture2d -> sprite
Texture2D texture = ((DownloadHandlerTexture)downloadHandler).texture;
downloadimg.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), Vector2.zero);
}