固件错误:访问控制允许原点

我正在给contextBroker打电话,它给了我这个错误。

Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:4200' is therefore not allowed access. The response had HTTP status code 405.

从邮差或干舷,我没有得到任何这一点。

  getContextBroker(){
    console.log("Consumimos el servicio getContextBroker");
    let headers = new Headers ({'Accept': 'application/json', 'Fiware-Service': 'x', 'Fiware-ServicePath': '/x', 'Access-Control-Allow-Origin': '*'});
    let options = new RequestOptions ({headers : headers});
    return this._http.get(this.urlcontextBrokers, {headers : headers}).map(res => res.json());
  }

}

我怎样才能解决这个问题?

我尝试添加:“Access Control Allow Origin”:“*”

但它仍然不起作用

编辑:

ps ax | grep contextBroker:

 862 pts/4    S+     0:00 grep contextBroker
 3792 ?        Ssl   27:35 /usr/bin/contextBroker -port 1026 -logDir /var/log/contextBroker -pidpath /var/run/contextBroker/contextBroker.pid -dbhost localhost -db orion -multiservice -logAppend

版本:

{
    "orion": {
        "version": "1.7.0",
        "uptime": "12 d, 18 h, 24 m, 20 s",
        "git_hash": "e544780eb64a4a2557c1f51dde070b8d82b86c49",
        "compile_time": "Wed Feb 8 13:30:24 CET 2017",
        "compiled_by": "fermin",
        "compiled_in": "centollo"
    }
}

EDIT02版

您好,正如我所说的,我不想使用cors,我已经通过以下方式从标题中删除了它:

   getContextBroker () {
     console.log ("We consume the getContextBroker service");
     let headers = new Headers ({'Accept': 'application / json', 'Fiware-Service': 'IoFAlmeria', 'Fiware-ServicePath': '/ ARMpalmerillas'});
     let options = new RequestOptions ({headers: headers});
     return this._http.get (this.urlcontextBrokers, {headers: headers}). map (res => res.json ());
   }

}

我一直在说同样的错误:

OPTIONS http: // XXX: 1026 / v2 / entities / 405 (Method Not Allowed)
Failed to load http: // XXX: 1026 / v2 / entities /: Response to preflight request does not pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http: // localhost: 4200' is therefore not allowed access. The response had HTTP status code 405.

这一定是fiware API的问题,因为我已经用nodejs设计了一个,更改URL也没有问题

更新:

Limpiando repositorios:base epel extras fiware mongodb-org-3.2
                     : mysql-connectors-community mysql-tools-community
                     : mysql57-community nodesource updates
Limpiando todo
Cleaning up list of fastest mirrors
[root@UAL-IoF2020 ~]# yum install contextBroker
Complementos cargados:fastestmirror, refresh-packagekit, security
Configurando el proceso de instalación
Determining fastest mirrors
epel/metalink                                            |  25 kB     00:00     
 * base: ftp.uma.es
 * epel: ftp.uma.es
 * extras: ftp.uma.es
 * updates: ftp.uma.es
base                                                     | 3.7 kB     00:00     
base/primary_db                                          | 4.7 MB     00:00     
epel                                                     | 4.7 kB     00:00     
epel/primary_db                                          | 6.0 MB     00:00     
extras                                                   | 3.4 kB     00:00     
extras/primary_db                                        |  29 kB     00:00     
fiware                                                   |  951 B     00:00     
fiware/primary                                           |  45 kB     00:00     
mongodb-org-3.2                                          | 2.5 kB     00:00     
mongodb-org-3.2/primary_db                               |  78 kB     00:00     
mysql-connectors-community                               | 2.5 kB     00:00     
mysql-connectors-community/primary_db                    |  18 kB     00:00     
mysql-tools-community                                    | 2.5 kB     00:00     
mysql-tools-community/primary_db                         |  38 kB     00:00     
mysql57-community                                        | 2.5 kB     00:00     
mysql57-community/primary_db                             | 139 kB     00:00     
nodesource                                               | 2.5 kB     00:00     
nodesource/primary_db                                    |  51 kB     00:00     
updates                                                  | 3.4 kB     00:00     
updates/primary_db                                       | 6.4 MB     00:00     
El paquete contextBroker-1.7.0-1.x86_64 ya se encuentra instalado con su versión más reciente
Nada para hacer