Angular 7 无法解析 spring 启动 rest ZDB974238714CA8DE634A7CE1D08 主机名

Question

I have bundled an Angular7 app as static content within a spring boot REST API into a.war archive and deployed it on JBoss EAP 7.3. The application deploys successfully and I am able to see the login page. However, when I try to login, I get a net::err_name_not_resolved error in my browser console and when I check the network tab, I see that the hostname is omitted whilst angular is trying to call the REST API for authentication, hence the error reported in the console. In my angular configs, I have defined apiHost='/' and expect that this would be resolved to the machine's host or IP at runtime, but this is not working. I have also created a jboss-web.xml where I defined the context root as / .

I would greatly appreciate any help in this regard.

EDIT

I need this to work because I am deploying the.war file in a JBoss cluster, hence, the application should be reachable from any of the cluster members.

Answer 1

In my angular configs, I have defined apiHost='/' and expect that this would be resolved to the machine's host or IP at runtime

You have just loaded some static files (html, js) in your server that spring boot run. Those static files (representing the frontend) are then served to the client. The client can be anyone.

So if server runs on ip 192.168.1.1 the client can have the same or a completely different IP. Therefore you must provide that info.

Think of it in a simple way. Those html and js files are handled only by your browser which doesn't know anything about the spring boot server. Somehow the call that is invoked in those html, js files must specify where the server is.

Therefore your apiHost='/' is wrong. It could be apiHost='localhost' or apiHost='some Specific Ip'

Answer 2

I finally resolved the issue by using apiHost='.'

I can now call up my application using any of the hosts participating in the JBoss cluster.