Ekiras Blogs: MVC

How Spring Boot Load Profiles

Spring boot by default loads application.properties from classpath if no profile is selected or specified. If you want to load profile specific properties then you need to tell spring boot application to load that profile, you can define this by the following ways

Specify the profile in application.properties as spring.profiles.active=dev this will enable the dev profile.
Specify the profile at run time as -Dspring.profiles.active=dev this will enable dev profile, also this will override any profile specified using step 1.

Spring looks for properties files as application-{profile}.properties where {profile} will be any profile you specify by using any of the steps mentioned above.

SpringBoot : How to display static html file in Spring boot MVC application

By Ekansh Rastogi

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Points To Remember

In order to serve static files like js, css, images etc ,all your files should be under the resources/static folder. Spring application can serve all the static files inside folders

resources/static/
resources/public/

In order to serve html files from spring boot application

your html files should be under static/public folder
you need to add view controller to serve html file

How to display static html file in Spring boot MVC application

Step 1 : Extend Class WebMvcConfigurerAdapter

You should create a class that extends WebMvcConfigurerAdapter
Your class should have @Configuration annotation.
You class should not have @EnableMvc annotation.
Override addViewControllers method and add your mapping.
Override configurePathMatch method and update suffix path matching.

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@Configuration
public class MvcConfigurer extends WebMvcConfigurerAdapter {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/error").setViewName("error.html");
registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
}
@Override
public void configurePathMatch(PathMatchConfigurer configurer) {
super.configurePathMatch(configurer);
configurer.setUseSuffixPatternMatch(false);
}
}

@Configuration
public class MvcConfigurer extends WebMvcConfigurerAdapter {

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/error").setViewName("error.html");
        registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
    }

    @Override
    public void configurePathMatch(PathMatchConfigurer configurer) {
        super.configurePathMatch(configurer);
        configurer.setUseSuffixPatternMatch(false);
    }


}

In the above code we have added a mapping for "/error" to show "/error.html"
Set the registry order to highest precedence, otherwise app will not render the page.
Ovveride configurePathMatch to set suffix pattern to false, this will allow /error to render /error.html

NOTE :: Similarly you can add other mappings to display your html pages. To add a default landing page to the application you can add "index.html" under static folder. For index file, you do not need to add any mapping.

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Ekiras Blogs

SpringBoot : What are Profiles in Spring Boot Application

What are Profiles in Spring Boot

Creating Profiles in Spring Boot

How Spring Boot Load Profiles

SpringBoot : How to display static html file in Spring boot MVC application

Points To Remember

How to display static html file in Spring boot MVC application

Step 1 : Extend Class WebMvcConfigurerAdapter

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