Javascript 在没有授权头的情况下运行ajax

我只想在用户写入用户名和密码时创建带有授权头耳的ajax调用。当这个变量为空时，我需要在没有授权头的情况下创建ajax调用。我该怎么做？我可以用一个ajax吗？或者我需要为一种情况创建两个ajax

var username = "user123";
var password = "pass123";

//var username = "";
//var password = "";    

$.ajax({
        type: "GET",
        url: url_survey,
        dataType: "json",
        headers: {
        'Authorization': "Basic " + btoa(username + ":" + password)
        },
        success: 
          function (data) {
            alert("SUCCESS");
       },
        error:
          function (data) {
            alert("ERROR");
          }
      });

试试这个：

var username = "user123";
var password = "pass123";

//var username = "";
//var password = "";    
var headers = {}; //list of headers

if(username && password) //user and pass exists
    headers['Authorization'] = "Basic " + btoa(username + ":" + password);

$.ajax({
        type: "GET",
        url: url_survey,
        dataType: "json",
        headers: headers, //use our headers
        success: 
          function (data) {
            alert("SUCCESS");
       },
        error:
          function (data) {
            alert("ERROR");
          }
      });

试试这个：

var username = "user123";
var password = "pass123";

//var username = "";
//var password = "";    
var headers = {}; //list of headers

if(username && password) //user and pass exists
    headers['Authorization'] = "Basic " + btoa(username + ":" + password);

$.ajax({
        type: "GET",
        url: url_survey,
        dataType: "json",
        headers: headers, //use our headers
        success: 
          function (data) {
            alert("SUCCESS");
       },
        error:
          function (data) {
            alert("ERROR");
          }
      });

试试这个：

var username = "user123";
var password = "pass123";

//var username = "";
//var password = "";    
var headers = {}; //list of headers

if(username && password) //user and pass exists
    headers['Authorization'] = "Basic " + btoa(username + ":" + password);

$.ajax({
        type: "GET",
        url: url_survey,
        dataType: "json",
        headers: headers, //use our headers
        success: 
          function (data) {
            alert("SUCCESS");
       },
        error:
          function (data) {
            alert("ERROR");
          }
      });

试试这个：

var username = "user123";
var password = "pass123";

//var username = "";
//var password = "";    
var headers = {}; //list of headers

if(username && password) //user and pass exists
    headers['Authorization'] = "Basic " + btoa(username + ":" + password);

$.ajax({
        type: "GET",
        url: url_survey,
        dataType: "json",
        headers: headers, //use our headers
        success: 
          function (data) {
            alert("SUCCESS");
       },
        error:
          function (data) {
            alert("ERROR");
          }
      });

---

传递给

$.ajax

的参数只是一个对象。只需创建它，根据需要添加属性，然后将其发送到“$.ajax”

var ajaxData = {
    type: "GET",
    url: url_survey,
    dataType: "json",
    success: 
      function (data) {
        alert("SUCCESS");
   },
    error:
      function (data) {
        alert("ERROR");
      }
};

if(username  && password){
    ajaxData.headers = {
        'Authorization': "Basic " + btoa(username + ":" + password)
    };
}

$.ajax(ajaxData);

---

传递给

$.ajax

的参数只是一个对象。只需创建它，根据需要添加属性，然后将其发送到“$.ajax”

var ajaxData = {
    type: "GET",
    url: url_survey,
    dataType: "json",
    success: 
      function (data) {
        alert("SUCCESS");
   },
    error:
      function (data) {
        alert("ERROR");
      }
};

if(username  && password){
    ajaxData.headers = {
        'Authorization': "Basic " + btoa(username + ":" + password)
    };
}

$.ajax(ajaxData);

---

传递给

$.ajax

的参数只是一个对象。只需创建它，根据需要添加属性，然后将其发送到“$.ajax”

var ajaxData = {
    type: "GET",
    url: url_survey,
    dataType: "json",
    success: 
      function (data) {
        alert("SUCCESS");
   },
    error:
      function (data) {
        alert("ERROR");
      }
};

if(username  && password){
    ajaxData.headers = {
        'Authorization': "Basic " + btoa(username + ":" + password)
    };
}

$.ajax(ajaxData);

---

传递给

$.ajax

的参数只是一个对象。只需创建它，根据需要添加属性，然后将其发送到“$.ajax”

var ajaxData = {
    type: "GET",
    url: url_survey,
    dataType: "json",
    success: 
      function (data) {
        alert("SUCCESS");
   },
    error:
      function (data) {
        alert("ERROR");
      }
};

if(username  && password){
    ajaxData.headers = {
        'Authorization': "Basic " + btoa(username + ":" + password)
    };
}

$.ajax(ajaxData);