add multiple cross origin urls in spring boot

Question

I found an example on how to set cors headers in spring-boot application. Since we have many origins, I need to add them. Is the following valid?

@Configuration
         


        

Answer 1

resources/application.yaml

server:
  port: 8080
  servlet:
    contextPath: /your-service
  jetty:
    acceptors: 1
    maxHttpPostSize: 0
  cors:
    origins:
      - http://localhost:3001
      - https://app.mydomainnnn.com
      - https://app.yourrrrdooomain.com

config/Config.java

package com.service.config;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Configuration;

import java.util.ArrayList;
import java.util.List;

@Configuration
@EnableConfigurationProperties
@ConfigurationProperties("server")
public class Config {

  private int port;
    private Cors cors;

  public int getPort() {
    return this.port;
  }

  public void setPort(int port) {
    this.port = port;
  }

  public Cors getCors() {
    return this.cors;
  }

  public void setCors(Cors cors) {
    this.cors = cors;
  }

  public static class Cors {
    private List origins = new ArrayList<>();

    public List getOrigins() {
      return this.origins;
    }

    public void setOrigins(List origins) {
      this.origins = origins;
    }
  }
}

config/WebConfig.java

package com.service.config;

import java.util.Arrays; 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.core.env.Environment;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.service.controller")
@PropertySource("classpath:application.yaml")
public class WebConfig extends WebMvcConfigurerAdapter {

    @Autowired
    private Environment environment;

    @Autowired
    private Config config;

    @Override
    public void addCorsMappings(CorsRegistry registry) {
      System.out.println("configuring cors");
      String[] origins = config.getCors().getOrigins().toArray(String[]::new);
      System.out.println("  - origins " + Arrays.toString(origins));
      registry.addMapping("/**")
              .allowedOrigins(origins);
    }
}