我想从jQuery向AJAX POST请求添加自定义标头。
我试过这个:
$.ajax({
type: 'POST',
url: url,
headers: {
"My-First-Header":"first value",
"My-Second-Header":"second value"
}
//OR
//beforeSend: function(xhr) {
// xhr.setRequestHeader("My-First-Header", "first value");
// xhr.setRequestHeader("My-Second-Header", "second value");
//}
}).done(function(data) {
alert(data);
});
当我发送此请求并使用FireBug观看时,我会看到此标题:
选项xxxx / yyyy HTTP / 1.1
主持人:127.0.0.1:6666
User-Agent:Mozilla / 5.0(Windows NT 6.1; WOW64; rv:11.0)Gecko / 20100101 Firefox / 11.0
接受:text / html,application / xhtml + xml,application / xml; q = 0.9, / ; q = 0.8
Accept-Language:fr,fr-fr; q = 0.8,en-us; q = 0.5,en; q = 0.3
Accept-Encoding:gzip,deflate
连接:保持活力
来源:null
访问控制请求方法:POST
访问控制请求标头:my-first-header,my-second-header
Pragma:no-cache
缓存控制:无缓存
为什么我的自定义标题会转到Access-Control-Request-Headers
:
Access-Control-Request-Headers:my-first-header,my-second-header
我期待这样的标头值:
My-First-Header:第一个值
My-Second-Header:第二个值
有可能吗?
答案 0 :(得分:397)
以下是如何在JQuery Ajax调用中设置请求标头的示例:
$.ajax({
type: "POST",
beforeSend: function(request) {
request.setRequestHeader("Authority", authorizationToken);
},
url: "entities",
data: "json=" + escape(JSON.stringify(createRequestObject)),
processData: false,
success: function(msg) {
$("#results").append("The result =" + StringifyPretty(msg));
}
});
答案 1 :(得分:138)
以下代码适用于我。我总是只使用单引号,它工作正常。我建议你应该只使用单引号或仅使用双引号,但不要混淆。
$.ajax({
url: 'YourRestEndPoint',
headers: {
'Authorization':'Basic xxxxxxxxxxxxx',
'X-CSRF-TOKEN':'xxxxxxxxxxxxxxxxxxxx',
'Content-Type':'application/json'
},
method: 'POST',
dataType: 'json',
data: YourData,
success: function(data){
console.log('succes: '+data);
}
});
希望这能回答你的问题...
答案 2 :(得分:121)
你在Firefox中看到的并不是实际的要求;请注意,HTTP方法是OPTIONS,而不是POST。这实际上是浏览器确定是否应允许跨域AJAX请求的“飞行前”请求:
飞行前请求中的Access-Control-Request-Headers标头包括实际请求中的标头列表。然后,在浏览器提交实际请求之前,服务器将报告是否在此上下文中支持这些标头。
答案 3 :(得分:1)
这就是为什么您无法使用Javascript创建机器人,因为您的选项仅限于浏览器允许您执行的操作。您不能只按照大多数浏览器遵循的CORS
政策订购浏览器,将随机请求发送到其他来源,并让您简单地获得响应!
此外,如果您尝试从浏览器附带的开发人员工具手动编辑某些请求标头(如origin-header
),浏览器将拒绝您的修改,并可能会发送预检OPTIONS
请求。 / p>
答案 4 :(得分:0)
因为您发送了自定义标头,所以CORS请求为NOT SIMPLE REQUEST,所以浏览器首先发送了prefilight OPTIONS请求,以检查服务器是否允许您的请求。
如果您在服务器上打开CORS,则您的代码将可用。您也可以改用js fetch(here)
let url='https://server.test-cors.org/server?enable=true&status=200&methods=POST&headers=My-First-Header,My-Second-Header';
$.ajax({
type: 'POST',
url: url,
headers: {
"My-First-Header":"first value",
"My-Second-Header":"second value"
}
}).done(function(data) {
alert(data[0].request.httpMethod + ' was send - open chrome console> network to see it');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
以下是示例配置,该配置在nginx上打开 CORS (nginx.conf文件)
location ~ ^/index\.php(/|$) {
...
add_header 'Access-Control-Allow-Origin' "$http_origin" always;
add_header 'Access-Control-Allow-Credentials' 'true' always;
if ($request_method = OPTIONS) {
add_header 'Access-Control-Allow-Origin' "$http_origin"; # DO NOT remove THIS LINES (doubled with outside 'if' above)
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Max-Age' 1728000; # cache preflight value for 20 days
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'My-First-Header,My-Second-Header,Authorization,Content-Type,Accept,Origin';
add_header 'Content-Length' 0;
add_header 'Content-Type' 'text/plain charset=UTF-8';
return 204;
}
}
以下是示例配置,该配置在Apache上打开 CORS (。htaccess文件)
# ------------------------------------------------------------------------------
# | Cross-domain AJAX requests |
# ------------------------------------------------------------------------------
# Enable cross-origin AJAX requests.
# http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity
# http://enable-cors.org/
# <IfModule mod_headers.c>
# Header set Access-Control-Allow-Origin "*"
# </IfModule>
#Header set Access-Control-Allow-Origin "http://example.com:3000"
#Header always set Access-Control-Allow-Credentials "true"
Header set Access-Control-Allow-Origin "*"
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"
Header always set Access-Control-Allow-Headers "My-First-Header,My-Second-Header,Authorization, content-type, csrf-token"
答案 5 :(得分:0)
从客户端来看,我无法解决此问题。 从nodejs express方面,您可以使用cors模块进行处理。
var express = require('express');
var app = express();
var bodyParser = require('body-parser');
var cors = require('cors');
var port = 3000;
var ip = '127.0.0.1';
app.use('*/myapi',
cors(), // with this row OPTIONS has handled
bodyParser.text({type:'text/*'}),
function( req, res, next ){
console.log( '\n.----------------' + req.method + '------------------------' );
console.log( '| prot:'+req.protocol );
console.log( '| host:'+req.get('host') );
console.log( '| url:'+req.originalUrl );
console.log( '| body:',req.body );
//console.log( '| req:',req );
console.log( '.----------------' + req.method + '------------------------' );
next();
});
app.listen(port, ip, function() {
console.log('Listening to port: ' + port );
});
console.log(('dir:'+__dirname ));
console.log('The server is up and running at http://'+ip+':'+port+'/');
没有cors(),此选项已在POST之前显示。
.----------------OPTIONS------------------------
| prot:http
| host:localhost:3000
| url:/myapi
| body: {}
.----------------OPTIONS------------------------
.----------------POST------------------------
| prot:http
| host:localhost:3000
| url:/myapi
| body: <SOAP-ENV:Envelope .. P-ENV:Envelope>
.----------------POST------------------------
ajax调用:
$.ajax({
type: 'POST',
contentType: "text/xml; charset=utf-8",
// these does not works
//beforeSend: function(request) {
// request.setRequestHeader('Content-Type', 'text/xml; charset=utf-8');
// request.setRequestHeader('Accept', 'application/vnd.realtime247.sct-giro-v1+cms');
// request.setRequestHeader('Access-Control-Allow-Origin', '*');
// request.setRequestHeader('Access-Control-Allow-Methods', 'POST, GET');
// request.setRequestHeader('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type');
//},
//headers: {
// 'Content-Type': 'text/xml; charset=utf-8',
// 'Accept': 'application/vnd.realtime247.sct-giro-v1+cms',
// 'Access-Control-Allow-Origin': '*',
// 'Access-Control-Allow-Methods': 'POST, GET',
// 'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type'
//},
url: 'http://localhost:3000/myapi',
data: '<SOAP-ENV:Envelope .. P-ENV:Envelope>',
success: function( data ) {
console.log(data.documentElement.innerHTML);
},
error: function(jqXHR, textStatus, err) {
console.log( jqXHR,'\n', textStatus,'\n', err )
}
});
答案 6 :(得分:0)
尝试添加添加'Content-Type':'application/json'
$.ajax({
type: 'POST',
url: url,
headers: {
'Content-Type':'application/json'
}
//OR
//beforeSend: function(xhr) {
// xhr.setRequestHeader("My-First-Header", "first value");
// xhr.setRequestHeader("My-Second-Header", "second value");
//}
}).done(function(data) {
alert(data);
});
答案 7 :(得分:-10)
尝试使用rack-cors gem。并在ajax调用中添加标题字段。