我尝试像这样得到标题值“Date”,但它给出了:
xhr.getResponseHeader is not a function
我在firebug中看到响应头并且它存在:S
也许没有JQuery支持?可以用JavaScript完成吗?必须工作,我可以看到标题......
代码:
function ajaxDate(myUrl){
var res;
var ajaxCall=$.ajax({
type: 'GET',
url: myUrl,
crossDomain: true,
async: false,
cache: false
}).always(function(output, status, xhr) {
//alert(xhr.getResponseHeader("MyCookie"));
console.log(xhr);
console.log(output);
console.log(status);
res=xhr.getResponseHeader('Date');
});
return res;
}
来自firebug的调试转储,网址:www.google.se:
200 OK 92ms jquery.min.js(第5行)
响应标头
Alternate-Protocol 80:quic
Cache-Control private, max-age=0
Content-Encoding gzip
Content-Type text/html; charset=UTF-8
Date Fri, 09 Aug 2013 00:57:43 GMT
Expires -1
P3P CP="This is not a P3P policy! See http://www.google.com/support/accounts/bin/answer.py?hl=en&answer=151657 for more info."
Server gws
Set-Cookie PREF=ID=e6503cda76a:FF=0:TM=1376009863:LM=1376009863:S=pByclnZqvnZs2k5S; expires=Sun, 09-Aug-2015 00:57:43 GMT; path=/; domain=.google.se, expires=Sat, 08-Feb-2014 00:57:43 GMT; path=/; domain=.google.se; HttpOnly
Transfer-Encoding chunked
x-frame-options SAMEORIGIN
x-xss-protection 1; mode=block
请求标题
Accept */*
Accept-Encoding gzip, deflate
Accept-Language en-US,en;q=0.5
Host www.google.se
Origin http://localhost/
Referer http://localhost/
User-Agent ....
的console.log(XHR)
[Exception... "Failure" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js :: .send :: line 5" data: no] { name="NS_ERROR_FAILURE", message="Failure", result=2147500037, more...}
auto.js (line 52)
的console.log(输出)
Object { readyState=0, status=0, statusText="[Exception... "Failure"...d :: line 5" data: no]"}
auto.js (line 53)
的console.log(状态)
error
答案 0 :(得分:2)
总是签名
.always(function(data|jqXHR, textStatus, jqXHR|errorThrown) { });
如果映射到您的方法
.always(function(output, status, xhr) {
这一行
res=xhr.getResponseHeader('Date'); // If response is a success
应该是
res=output.getResponseHeader('Date'); // if response fails
您的方法看起来失败,将相同的方法映射到errorThrown
相反,您可以编写一个单独的fail
方法来处理它或对语法进行小的更改。
res= output.getResponseHeader ? output.getResponseHeader.get('Date')
: xhr.getResponseHeader.get('Date')