I have deployed a single fat .jar, containing a Spring Boot app and a React app in Openshift.
The Spring Boot app exposes a REST API, and the React app is the frontend that makes calls to that API.
Problem
Both apps are accessible externally just fine (with the url generated by Openshift), but the React app cannot communicate with the Spring Boot app through http://localhost:8080/... calls.
Attempts so Far
I have tried using 127.0.0.0 instead of localhost but with no avail.
I also tried performing curl -v http://localhost:8080/... from inside the pod where the 2 apps are deployed and it works fine.
Is this a configuration issue? Do I need to set up routes? Or use something other than localhost/127.0.0.1?
To answer my own question, I finally managed to solve this by following Boris Chistov's suggestion. I simply removed all the http://localhost:8080 url parts and used relative URLs instead.
Related
I have a spring boot application, built to a war file. The code is here. The application works properly when running locally in ./gradlew bootrun, and my REST endpoints are responsive.
I set up FTP credentials on my azure site (Windows resource), and I've successfully uploaded the war file via the deploywar endpoint, as described here.
When I FTP in to the site, I see the war file exploded in to /site/wwwroot/webapps/ROOT/. However, it's unclear to me how to access the site.
THe main URL is https://springboottest01.azurewebsites.net/, which still is serving the hostingstart.html. If I go to https://springboottest01.azurewebsites.net/webapps/ROOT/, I pull down my webapp's index.html, and a few JS files. However, the REST API call that it tries to make, /students/list, fails to run (404 error), which makes me think that the spring boot backend isn't actually running.
How do I diagnose this? What do I need to do to get this to work?
I also tried setting up a Linux resource (Tomcat 8.5) and deploying the webapp to that site. When I do that, I get the same problems there (in this case, the webapp is available at the root URL of that resource, but the REST endpoint that it tries to call fails). https://springboottest02.azurewebsites.net/
Currently, I have a springboot jar file with a bunch of rest and apis including calls for login deployed on ec2. I also have a separate code base for my ui i.e with js,html,css. What is the best way to deploy this on aws and keep it separate from the backend.
This can be done in many ways. But will share a simple way.
Deploy your spring boot app in one aws instance.
Deploy the other front end app on the other aws instance.
This is a kind of two tier application where the server and client app are hosted in different instance. You can restrict the access of your rest api to be accessed only by the instance where you host front end app. For trial you can use heroku account. E.g.
Github: https://github.com/krishna28/springbootapi
Also check https://github.com/krishna28/etodo
I am developing a small project where I have Springboot java application and
Anagular 5 application. I want to deploy them on one tomcat. running each on diffrent ports.
Application Flow should be like this:
1) Some external service calls Java application with some headers. Springboot java application should read the headers put them in cookie and forward the request to Angular application.
2)Angular application reads the headers from the cookie and communicates to another application(Hosted somewhere else) with API calls.
What I tried:
I am able to deploy Spring boot application on tomcat.
For angular deployment I am copy pasting the dist folder into webapp.
What is question about: I wanted them to run at a time on tomcat on defferent ports so.
external application --calls-> java application(say running on localhost:8080)-----redirect from localhost:8080 to ----> Angular application(say running on localhost:8081).
in moment your are delegating servlet container to a provided one, all spring properties concerning an "embedded" container will be simply ignored. This is the case of server.port property.
Maybe it's a client/company constraint BUT using Spring Boot project this way makes you loose big part of its benefits: Raising serverless apps ready to be horizontaly scaled :(
Spring Boot keeps the possibility to let your static resources in the apps whitout loosing the ability to run the embedded container; by building an executable war.
Tip: To do that, just change the packaging from .jar to .war.
Hope was helpful :)
I am new to angular 2 and js frameworks so this question is probably going to sound a bit stupid, I have a task at work where I am looking to integrate angular 2 with Spring boot application, I went through couple of tutorials online and found that you can configure the proxy setting for paths inside angular to redirect calls to spring boot application for various paths.
For reference: https://dzone.com/articles/angular-2-and-spring-boot-development-environment
The question I want to ask is that since Angular is a js framework and I thought that it could be completely integrated with any application, like plain old javascript, html and css. In a way that only a single port is required to launch the server and jsp based models can be served through it.
But with Angular2 you need a separate port of its own to do anything. Is that true?
If it is then why it is like that?
If not then can you please direct me to a guide which describes how to integrate it in a way that it would be served through the server?
But with Angular2 you need a separate port of its own to do anything. Is that true?
No, not at all. An Angular application, once built, is just a set of satic files that can be served by any web server, including the one running your spring boot app. Those file aren't "run" on the server. They're just downloaded by the browser.
During development, though, it's much more productive to have a separate web server like the one that Angular CLI starts up, and which watches your source files, rebuilds your application on the fly, and serves it immediately. Since this server can also serve as a proxy to your spring server, you can just pretend your spring server hosts the angular files.
An alternative is to use your angular build tool to build the app to some directory, and configure spring to serve static files from that directory.
In production, you'll simply build the production-ready angular app, integrate the generated files inside the spring boot jar file (inside the static folder, typically), and run the spring boot application as usual.
Please correct if the way I am doing is wrong.
In my web application I am not using jsp pages for developing user interface. Instead I am using html, css and Angular 2 and front-end project structure is separated from back-end.
Although I am able to develop a simple project using Angular CLI which is served by SpringMVC back-end. Front-end is using port 4200 and backend is running on port 8080. I have managed to take and serve request from Angular 2 to SpringMVC. In local mode these are working perfectly, now I want to make them host on a live server.
How to publish SpringMVC back-end and Angular 2 front-end separately but running on same domain? I am not using SpringBoot also front-end and back-end are in separate folders. I do not want to combine both in same project structure and generate a war file and deploy.
What is the best practice for developing SpringMVC back-end and Angular-2 back-end and deploying them in online server?
What I've found works best is running nginx as a static file server and a forward proxy for the spring app.
usually I use the angular-cli proxy to make /api/ go to http://localhost:8080
that means that calls to http://localhost:3000/api/** get passed to http://localhost:8080/api/. And since you are on the same domain we can simply call /api/