Sticky Code : Spring Property Source Usage

Hi everyone in this post I just wanna share a simple sticky code in Spring MVC which used to mapping your @RequestMapping annotation to a properties file. It’s called Property Source, and it would be an advantage to make your URL Request Mapping more managable. Because you put your URL Request Mapping in a single file. Let’s look at the code

1. Add annotation @PropertySource in your web configuration class

@Configuration
@EnableWebMvc
@PropertySource("classpath:/config/mapping-controllers.properties")
@ComponentScan(basePackages = "com.estartup")
@EnableTransactionManagement
public class WebApplicationConfiguration extends WebMvcConfigurerAdapter
		implements ApplicationContextAware {
	
	private ApplicationContext applicationContext;
	private org.apache.commons.configuration.Configuration _config = ConfigManager.getConfiguration();

	public void setApplicationContext(ApplicationContext applicationContext) {
		this.applicationContext = applicationContext;
	}
	
	@Bean
    public static PropertyResourceConfigurer propertyResourceConfigurer() {
		return new PropertySourcesPlaceholderConfigurer();
    }
}

2. Create a properties file in src/config package which named mapping-controllers.properties, add put an example (test)

test=/test

3. In your Controller class you can put ${test} inside the @RequestMapping annotation, ${test} is taken from mapping-controllers.properties which you made before

package com.estartup.controller;

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

@Controller
@RequestMapping("${test}")
public class TestController {
	
	@RequestMapping(method = RequestMethod.GET)
	public String defaultHandler(){
		System.out.println("entering test controller : default handler ");
		return "company/company_list";
	}
}

Good Luck !!