我正在嘗試將Ajax中的json（電子郵件和密碼）發(fā)送到Spring-Boot中的Controller方法。我確定我是從html提取數(shù)據(jù)并以正確的方式在json中進(jìn)行解析，但控制器仍然表示缺少電子郵件期望字段。我也使用了form.serialized()但沒(méi)有任何變化，所以我決定創(chuàng)建自己的對(duì)象，然后將其解析為json。單擊提交按鈕時(shí)，Ajax調(diào)用開(kāi)始：function login() {var x = {    email : $("#email").val(),    password : $("#password").val()  };$.ajax({    type : "POST",    url : "/checkLoginAdministrator",    data : JSON.stringify(x),    contentType: "application/json",    dataType: "json",    success : function(response) {        if (response != "OK")            alert(response);        else            console.log(response);    },    error : function(e) {        alert('Error: ' + e);      }});這是控制器內(nèi)部的方法：@RequestMapping("/checkLoginAdministrator")public ResponseEntity<String> checkLogin(@RequestParam(value = "email") String email,                                         @RequestParam(value = "password") String password) {    String passwordHashed = Crypt.sha256(password);    Administrator administrator = iblmAdministrator.checkLoginAdministrator(email, passwordHashed);    if (administrator != null) {        Company administratorCompany = iblmCompany.getAdministratorCompany(administrator.getCompany_id());        String administratorCompanyJson = new Gson().toJson(administratorCompany);        return new ResponseEntity<String>(administratorCompanyJson, HttpStatus.OK);    }    return new ResponseEntity<String>("{}", HttpStatus.OK);}我可以通過(guò)json看到的jsonconsole.log()如下：{"email":"fantasticemail@email.it","password":"1234"}在IJ控制臺(tái)中，我得到以下Java WARN：Resolved [org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'email' is not present]