https://i.imgur.com/2t2gO0g.png
错误:“ JSON必须表示对象类型”。但是只有当我添加“ {\” meshDatas \“:” + jsonResult +“}”时才可以;它有效吗(对不起,我很难解释)
遇到一个问题(https://i.imgur.com/XDzokfj.png),“ JSON必须代表对象类型”。
如何使我的Rest Api将列表作为JSON对象返回?
Json的实际回复:https://i.imgur.com/GUzHKG8.png
以下视频:https://www.youtube.com/watch?v=TrOLTrIX9Yk && https://www.youtube.com/watch?v=00gSBOTI4tg然后修改了从数据库获取MeshData的代码
已尝试: 字符串jsonResult = System.Text.Encoding.UTF8.GetString(www.downloadHandler.data);
var newJson =“ {\” meshDatas \“:” + jsonResult +“}”;
MeshDataList meshDataList = JsonUtility.FromJson(newJson);
这有效并将问题缩小到Rest Api的格式,但是现在我不知道如何使Api发送正确的格式...
Image_For.Context https://i.imgur.com/tWj8Ohf.png
//RestClient.cs (Unity)
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;
public class RestClient : MonoBehaviour
{
private static RestClient _instance;
public static RestClient Instance
{
get
{
if (_instance == null)
{
_instance = FindObjectOfType<RestClient>();
if (_instance == null)
{
GameObject go = new GameObject();
go.name = typeof(RestClient).Name;
_instance = go.AddComponent<RestClient>();
DontDestroyOnLoad(go);
}
}
return _instance;
}
}
public IEnumerator Get(string url,System.action<MeshDataList> callBack)
{
using (UnityWebRequest www = UnityWebRequest.Get(url))
{
yield return www.SendWebRequest();
if (www.isnetworkError)
{
Debug.Log(www.error);
}
else
{
if (www.isDone)
{
try
{
string jsonResult = System.Text.Encoding.UTF8.GetString(www.downloadHandler.data);
var newJson = "{\"meshDatas\":" + jsonResult + "}";
MeshDataList meshDataList = JsonUtility.FromJson<MeshDataList>(newJson);
callBack(meshDataList);
}
catch(Exception e)
{
Debug.Log(e.Message);
}
}
}
}
}
//Game.cs (Unity)
public class Game : MonoBehaviour
{
public string WEB_URL = "";
// Start is called before the first frame update
void Start()
{
StartCoroutine(RestClient.Instance.Get(WEB_URL,GetMeshDatas));
}
void GetMeshDatas(MeshDataList meshDataList)
{
foreach (MeshData meshData in meshDataList.meshDatas)
{
Debug.Log("MeshData Xsize :" + meshData.xsize);
Debug.Log("MeshData Zsize :" + meshData.zsize);
Debug.Log("MeshData Width :" + meshData.width);
Debug.Log("MeshData Height :" + meshData.height);
Debug.Log("MeshData Scale :" + meshData.scale);
Debug.Log("MeshData OffsetX :" + meshData.offsetX);
Debug.Log("MeshData OffsetY :" + meshData.offsetY);
Debug.Log("MeshData Id :" + meshData.id);
}
}
}
//UMM.API.Dummy.Controllers
[Route("api/[controller]")]
[ApiController]
public class MeshDatasController : Controller
{
private readonly UmmclientDEMContext _context;
public MeshDatasController(UmmclientDEMContext context)
{
_context = context;
}
// GET: api/MeshDatas
[HttpGet]
public async Task<actionResult<IEnumerable<MeshData>>> GetMeshData()
{
return await _context.MeshData.ToListAsync();
}
// GET: api/MeshDatas/{n}
[HttpGet("{id}")]
public async Task<actionResult<MeshData>> GetMeshData(int id)
{
var meshData = await _context.MeshData.FindAsync(id);
//MeshData meshData = MeshData.Single(mbox => mbox.Id == Id);
if (meshData == null)
{
return NotFound();
}
return meshData;
}
//UMM.API.Dummy.Models
namespace UMM.API.Dummy.Models
{
[JsonObject,Serializable]
public class MeshData
{
public int? Xsize { get; set; }
public int? Zsize { get; set; }
public int? Width { get; set; }
public int? Height { get; set; }
public int? Scale { get; set; }
public int? OffsetX { get; set; }
public int? OffsetY { get; set; }
public int Id { get; set; }
}
预期结果 https://i.imgur.com/E3lmFKW.png 从Rest Api后面获取正确格式的Json数据,例如
{“ meshDatas”:[{“ xsize”:20,“ zsize”:20,“ width”:256,“ height”:256,“ scale”:20,“ offsetX”:100,“ offsetY”: 100,“ id”:1}]}