需要有关如何制作 Angular 应用程序和 Java 作为后端的建议

Question

I'm a not a programmer but a programming enthusiast, I have learned java (specifically - basics, some of the advanced stuff, JDBC, collections, servlets, etc. I haven't learned any frameworks such as swing, spring, applets, etc. I have created a web app as my project after I learned java with servlets, HTML, CSS, jQuery. I used no frameworks of any sought. I started learning Angular 7 and I'm in the middle of it. I used servlets to manage my sessions for client-side and was very easy to talk to using post request using jquery and receive Z0ECD11C1D7A287401D148A23BBD7A2F8 Z obj in return, I used JSP to render the HTML code I wanted. So I could add a bit of code in every JSP page like so...:

<%
String school=(String)session.getAttribute("school");  
if(school == "" || school == null){
    response.sendRedirect("index.jsp");
}
%>

...and redirect the user if the session is null. I'm wondering what a similar solution would be in Angular since angular is independent of the server.

Answer 1

You could manage your sessions in a handful of ways. The go to way at writing this seems to be through the use of JWT (JSON Web Token). You could setup an API service in angular that handles this using HttpClient . When it comes to redirecting there's a Router class for that in Angular.

I understand this might be a bit overwelming, don't hesitate to ask if you need any more information. :)