java 如何在 REST API 中获取请求的客户端主机名
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How to get client Host name of request in REST API
提问by Megala Perumal
Currently I am working with Rest API(Spring MVC). UI Part is developed in Angular JS. this project will integrate any of the domain.
目前我正在使用 Rest API（Spring MVC）。UI 部分是用 Angular JS 开发的。该项目将集成任何域。
For example : www.xyz.comcontaining my register button www.abc.comalso may contain my register button.
例如：www.xyz.com包含我的注册按钮 www.abc.com也可能包含我的注册按钮。
When the request I received from user, I need to find out that, from which domain the request is coming?
当我从用户那里收到请求时，我需要找出请求来自哪个域？
Tried with the following:
尝试了以下内容：
@GET
@Path("/gethostname")
@Produces("application/json")
public void test(@Context HttpHeaders httpHeaders, @RequestBody JSONObject inputObj) {
System.out.println("=========> "+httpHeaders.getHeaderString("host"));
}
But it return REST API(server) Host name. How can I get client host name?
但它返回 REST API（服务器）主机名。如何获取客户端主机名？
回答by Pulkit
There are two ways for you to get hostname
有两种方法可以获取主机名
By calling below code on server side, please note that this will come as null if url is directly entered in browser.
通过在服务器端调用以下代码，请注意，如果在浏览器中直接输入 url，它将为 null。
String referrer = request.getHeader("referer");
Check this image
检查这张图片
Or you can provide below code to be added on client side and on server you can read the value of domainwhich will return hostname
或者您可以提供以下代码以添加到客户端和服务器上，您可以读取domain将返回主机名的值
<input type="button" value="Register" onClick="call()"/>
<script>
function call(){
var domain=window.location.hostname;
window.open('http://<your-hostname>/register?domain='+domain,'_self');
}
</script>
回答by Bilal Raza
You can compare the Origin
你可以比较一下原产地
httpHeaders.getOrigin()
httpHeaders.getOrigin()
This returns the string which will tell you the origin of the request in your case http://www.yoursampleurl.com.
这将返回字符串，该字符串将告诉您在您的案例http://www.yoursampleurl.com 中请求的来源 。
回答by Chids
Add HttpServletRequest request to your method definition and then use the Servlet API to get the Client remote address
将 HttpServletRequest 请求添加到您的方法定义中，然后使用 Servlet API 获取客户端远程地址
@GET
@Path("/gethostname")
@Produces("application/json")
public void test(@Context HttpHeaders httpHeaders, @RequestBody JSONObject inputObj,, HttpServletRequest request) {
System.out.println("=========> "+request.getRemoteAddr());
}
