Spring Boot JPA H2 Console not running, application.properties file ignored

Another possible cause for this problem, is if you're using spring security. In that case, you may want to add a specific permission to the h2-console URL you defined. For example, for the default h2-console configuration (without a spring.h2.console.path property), you will add this inside your WebSecurityConfigurerAdapter extending class:

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests()
        .antMatchers("/h2-console/**").permitAll()
        .anyRequest().authenticated();
    http.headers().frameOptions().sameOrigin();
}

Please also note that line at the end - http.headers().frameOptions().sameOrigin();. It's needed to prevent a Whitelable page error when logging in to the console. This is described also here.

Your current location src\main\java\h‌​ello\application.pro‌​perties is the culprit. For 2 reasons.

1. Non java resources in src\main\java are ignored
2. only application.properties in the root or config directory or taken into account (by default). (See the reference guide).

The fix is to simply move your application.properties to src\main\resources.

Check if you set a base path in application.properties.

For example, if you have a setting

server.contextPath=/api

You access the h2 Console under

http://localhost:8080/api/h2-console

Obvious, but that was it for me