Error with SRV Host Name in Spring Boot MongoDB Configuration using .env file

The Error: Unable to Connect to MongoDB with SRV Host Name

Now, let’s talk about the error that brought you here. When you try to connect to a MongoDB instance using an SRV host name in your Spring Boot application, you might encounter an error that looks something like this:

org.springframework.data.mongodb.MongoDbFactoryException: Cannot create MongoDbFactory instance; 
    nested exception is com.mongodb.MongoConfigurationException: Unable to look up SRV record for host 'my-mongodb-srvRecord'

This error occurs when Spring Boot is unable to resolve the SRV host name to a valid MongoDB node address. This can happen due to various reasons, such as:

• The SRV host name is not correctly configured in your DNS.
• The MongoDB replica set is not properly configured.
• The Spring Boot application is not correctly configured to use the SRV host name.

Configuring Spring Boot to Use an SRV Host Name

Now that we’ve covered the basics, let’s dive into the configuration process. To use an SRV host name in your Spring Boot application, you’ll need to follow these steps:

1. Create a .env file in the root of your project with the following contents:

         MONGODB_URI=mongodb+srv://username:password@my-mongodb-srvRecord/
       

   Replace username, password, and my-mongodb-srvRecord with your actual MongoDB credentials and SRV host name.

2. Add the following dependencies to your pom.xml file (if you’re using Maven) or your build.gradle file (if you’re using Gradle):

         <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-data-mongodb</artifactId>
         </dependency>
         <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-configuration-processor</artifactId>
           <optional>true</optional>
         </dependency>
       

3. Create a MongoConfig class with the following contents:

         @Configuration
         public class MongoConfig {
         
           @Value("${MONGODB_URI}")
           private String mongodDbUri;
         
           @Bean
           public MongoTemplate mongoTemplate() {
             MongoTemplate mongoTemplate = new MongoTemplate(new SimpleMongoDbFactory(new MongoClient(mongodDbUri)));
             return mongoTemplate;
           }
         }
       

   This class reads the MONGODB_URI from the .env file and creates a MongoTemplate instance using the SRV host name.

Troubleshooting Common Issues

Even with the correct configuration, you might still encounter issues. Here are some common problems and their solutions:

Conclusion

In conclusion, using an SRV host name in your Spring Boot application can be a powerful way to configure your MongoDB connection. By following the steps outlined in this article, you should be able to successfully connect to your MongoDB instance using an SRV host name. Remember to troubleshoot common issues and verify that your configuration is correct. Happy coding!

Additional Resources

For further reading and reference, check out the following resources:

• Spring Boot MongoDB Documentation
• MongoDB Shell Documentation
• SRV Record Wikipedia Article

We hope this article has been informative and helpful in resolving the error with SRV host name in Spring Boot MongoDB configuration using an .env file. If you have any questions or need further clarification, please don’t hesitate to ask!

Frequently Asked Question

Having trouble with SRV host name in your Spring Boot MongoDB configuration using a .env file? We’ve got you covered! Here are some frequently asked questions to help you troubleshoot common issues.