Spring Boot/Eclipse index.html: There was an unexpected error (type=Not Found, status=404)

Question

I'm following this tutorial to integrate Spring Boot with AngularJS:

https://dzone.com/articles/java-8-springboot-angularjs-bootstrap-springdata-j

I built the Spring Boot starter with STS in Eclipse/Photon. My Eclipse project looks like this:

My "Home" Controller looks like this:

package com.example.demo.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HomeController {
    @RequestMapping("/home")
    public String home() {
        return "index";
    }
}

Per the screenshot above, I have an "index.html" in src/main/resources/static/views.

My application.properties defines spring.mvc.view.prefix and .suffix:

spring.mvc.view.prefix = /views/
spring.mvc.view.suffix = .html

There are no errors or warnings when I right-click the Eclipse project and "Run As > Spring App".

But when I browse to localhost:8080/home, I get:

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Sat Nov 03 13:40:19 PDT 2018
There was an unexpected error (type=Not Found, status=404).
No message available

Q: Why am I getting a "404" trying to access "/home"?

Q: Is there anything "special" I need to do in Eclipse, with my Eclipse project?

Q: What are some good strategies for troubleshooting?

Thank you in advance!

Answer 1

I believe you are not using templating engine such as thymeleaf .

Try the following and it should fix your problem.

1. move your index.html to src/main/resources/static . This is the location from where static resources like HTML file will be served automatically.
2. You can remove those two lines that you define on application.properties file.