jQuery的验证错误

考虑下面的代码：jQuery的验证错误

var jsonData1 = $.ajax({ 

     url: 'http://'+domainName+':9898/jolokia/read/*', 
     dataType:"json", 
     crossDomain: true, 
     beforeSend: function(xhr){ 
      var username= '*'; 
      var password= '*'; 
      xhr.setRequestHeader("Authorization", 
       "Basic " + btoa(username + ":" + password)); 

     }, 
     async: false 
     }).responseText; 

    var parsed1 = JSON.parse(jsonData1);

这里的时候，我直接访问的URL，它要求输入用户名和密码，当给出显示值。但是，当我做到这一点通过Ajax调用，它抛出这个错误：

Failed to load resource: the server responded with a status of 401 (Unauthorized) 
jquery.min.js:5 XMLHttpRequest cannot load  http://10.91.240.21:9898/jolokia/read/* No  'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8080' is therefore not allowed access. The response had HTTP status code 401. 
(index):1 Uncaught SyntaxError: Unexpected token u

TRY 2：

 var jsonData2 = $.ajax({ 
     type:'GET', 
     url: 'http://'+domainName+':9898/jolokia/read/*', 
     dataType:"jsonp", 
     crossDomain: true, 
     data: {username: '*',password: '*'}, 
     async: false 
     }).responseText; 

    var parsed2 = JSON.parse(jsonData2);

我试着使用JSON页。未经授权的代码得到解决。它显示状态正常。但现在这个错误来了

Uncaught SyntaxError: Unexpected token u

来源

2014-11-25 Nagendra Singh

http://stackoverflow.com/questions/5507234/how-to-use-basic-auth-and-jquery-and-ajax – Cheery 2014-11-25 04:36:14

@Cheery我使用beforeSend说法。 – 2014-11-25 04:39:56

查看链接的第二个答案。现代jQuery拥有用户名和密码的属性。或者，至少，属性标题 – Cheery 2014-11-25 04:41:49

我想我得到了答案。跨域问题已解决。

 $(document).ready(function() { 
     var surl = "http://www.anotherdomain.com/webservice.asmx"; 
     $.ajax({ 
      type: 'GET', 
      url: surl, 
      crossDomain: true, 
      contentType: "application/json; charset=utf-8", 
      data: { UserID: 1234 }, 
      dataType: "jsonp", 
      async: false, 
      cache: false 
     }); 
     });

来源

2014-11-25 16:14:32

jQuery的验证错误

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