//登錄操作
    @RequestMapping("/login")
    public String login(HttpServletRequest request, @RequestParam("userType") String userType, Map<String, Object> map,HttpSession session) {

        session.setAttribute("id",request.getParameter("id"));
        String id = session.getAttribute("id").toString();
        String password = request.getParameter("password");

        //如果是管理員登錄則查詢管理員信息表
        if(userType.equals("0")){
            Administrators administrator = administratorsService.login(id, password);
            if(administrator != null){
                System.out.println("登陸成功");
                return "redirect:/ScheduleInfo";
            }else {
                map.put("msg","賬號或密碼錯誤");
                //如果登陸失敗則將session域中的id刪除，這樣在unity判斷是否登錄成功時會直接按請求錯誤抓取
                session.removeAttribute("id");
                return "login";
            }
        }else {      //如果是普通用戶登錄則查找普通用戶表
            Employees employee = employeesService.login(id, password);
            if(employee != null){
                if (employeesService.findJobById(id).getJob().equals("巡檢人員")){
                    System.out.println("登陸成功");
                    return "redirect:/xInfo";
                }else {
                    System.out.println("登陸成功");
                    return "redirect:/wInfo";
                }
            }else {
                map.put("msg","賬號或密碼錯誤");
                session.removeAttribute("id");
                return "login";
            }
        }
    }

@RequestMapping("/getUserInfo")
    @ResponseBody
    public String getUserInfo(HttpSession session){
        System.out.println("收到unity登錄請求");
        //因為登陸失敗以后session域中的id會被刪除，所以判斷為null則登錄失敗
        if(session.getAttribute("id") != null){
            String id = session.getAttribute("id").toString();
            System.out.println("登陸成功");
            return id ;
        }
        else {
            System.out.println("登陸失敗");
            return null;
        }
    }

using System.Collections;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
using UnityEngine.Networking;

public class HttpHelper : MonoBehaviour
{
	//發出登錄請求
    private string postUrl = "http://47.xx.75.xx:8080/login";//如果是本地運行則將前面的47.96.75.29換成localhost
    //獲得登錄是否成功的數據，也就是運行上面第二個代碼的內瓤
    private string postUrl2 = "http://47.xx.75.xx:8080/getUserInfo";
    public GameObject[] uis;
    public GameObject backLoginObj;
    public Text massage;
    public Text countText;
    public Text passwordText;
    private const string userType = "userType";
    private const string userName = "id";
    private const string password = "password";

    public void loginTest()
    {
    //這個方法和登錄按鈕綁定，用于觸發異步方法Post
        StartCoroutine("Post");
    }

    [System.Obsolete]
    IEnumerator Post()
    {
    //發送登錄表單，每個人不一樣，根據自己需要的表單參數來，一般就是賬號密碼，這里的userType就是管理員和員工的分類，0是管理員，1是員工。
        WWWForm form = new WWWForm();
        form.AddField(userType, "0");
        form.AddField(userName, countText.text);
        form.AddField(password, passwordText.text);
		
		//這里發出了登錄請求
		//利用UnityWebRequest通過請求路徑這個和postman的操作類似，將表單發送出去
        UnityWebRequest request = UnityWebRequest.Post(postUrl, form);
        yield return request.SendWebRequest();
        if (request.isHttpError || request.isNetworkError)
        {
            Debug.LogError(request.error);
        }
		
		//這里獲取了登錄是否成功的數據
        UnityWebRequest request2 = UnityWebRequest.Get(postUrl2);
        yield return request2.SendWebRequest();
        //如果登陸失敗的Session域中的id是空的，所以會報錯，也就是判斷登陸是否成功的依據。
        if (request2.isHttpError || request2.isNetworkError)
        {
            massage.text = "登陸失敗，賬號或密碼錯誤";
        }
        else
        {
        //反之如果登錄成功則獲得返回的數據，這里就是用戶的id
            string receiveContent = request2.downloadHandler.text;
		//這是個普通的ui操作，我的構想是如果登錄成功則將這些ui隱藏只顯示massage和一個返回鍵
            foreach (GameObject ui in uis)
            {
                ui.SetActive(false);
            }
            massage.gameObject.SetActive(true);
            backLoginObj.SetActive(true);
			
			//如果返回的數據和用戶輸入時的賬號一樣時則判斷登陸成功
            if (receiveContent == countText.text)
            {
                massage.text = "登陸成功，歡迎管理員" + receiveContent;
            }
            else//反之登陸失敗
            {
                massage.text = "登陸失敗，賬號或密碼錯誤";
            }
        }
        StopCoroutine("Post");
    }
    public void backLogin()
    {
        SceneManager.LoadScene("SampleScene");
    }
}