UnityWebRequest-Post Json请求

之前在章节中有提到利用Form表单进行Post请求，但这种方式比较适合字段较少的情况，本章介绍Post请求传入Json用法，现在很多项目与后台接口对接，基本都是使用Json来进行通信。
直接上代码：

using System;
using LitJson;
using System.Text;
using UnityEngine;
using System.Collections;
using UnityEngine.Networking;
using System.Collections.Generic;

public class Test : MonoBehaviour
{
    
    
    /// <summary>
    /// 登录验证信息
    /// </summary>
    public class LoginInfo
    {
    
    
        public string userName;
        public string password;

        public LoginInfo(string userName, string password)
        {
    
    
            this.userName = userName;
            this.password = password;
        }
    }

    private void Start()
    {
    
    
        LoginInfo loginInfo = new LoginInfo("admin", "123456");
        string jsonStr = JsonMapper.ToJson(loginInfo);

        StartCoroutine(UnityWebRequestPost("http://192.168.0.1:8080/port/login", jsonStr, text =>
        {
    
    
            Debug.Log("请求结果：" + text);
        }));
    }

    /// <summary>
    /// UnityWebRequest Post Json请求
    /// </summary>
    /// <param name="url">接口地址</param>
    /// <param name="jsonStr">json参数</param>
    /// <param name="textCallBack">text回调</param>
    /// <returns></returns>
    IEnumerator UnityWebRequestPost(string url, string jsonStr,Action<string> textCallBack)
    {
    
    
        byte[] bytes = Encoding.UTF8.GetBytes(jsonStr);
        UnityWebRequest request = new UnityWebRequest(url, UnityWebRequest.kHttpVerbPOST)
        {
    
    
            uploadHandler = new UploadHandlerRaw(bytes),
            downloadHandler = new DownloadHandlerBuffer()
        };
        request.SetRequestHeader("Content-Type", "application/json;charset=utf-8");
        yield return request.SendWebRequest();
        if (request.isHttpError || request.isNetworkError)
        {
    
    
            Debug.LogError(request.error);
        }
        else
        {
    
    
            string result = request.downloadHandler.text;
            Debug.Log(result);
        }
    }
}

比较简单，我们通过LitJSON来将C#类对象序列化为json字符串，传入即可。
具体怎么序列化和反序列化Json，直接传送门：Json数据解析