How do you implement Solr queries in Spring Boot?

Table of Contents

• Introduction
• 1. Setting Up Solr Querying in Spring Boot
  • Maven Dependency
  • Solr Configuration
• 2. Querying Solr Using Repositories
  • Repository-Based Querying
    • Custom Query with Method Naming
    • Example Usage
• 3. Advanced Querying with SolrTemplate
  • Using SolrTemplate
    • Example: Query by Field
    • Example: Pagination and Sorting
• Practical Example
• Conclusion

Introduction

Implementing Solr queries in a Spring Boot application allows you to leverage Solr's powerful search and indexing capabilities. Spring Data Solr provides tools like SolrCrudRepository for simple queries and SolrTemplate for advanced queries. This guide explores these methods, enabling efficient querying of Solr data with practical examples.

1. Setting Up Solr Querying in Spring Boot

Maven Dependency

Ensure the following dependency is in your pom.xml:

Solr Configuration

Set up Solr details in the application.properties file:

2. Querying Solr Using Repositories

Repository-Based Querying

Custom Query with Method Naming

Spring Data Solr allows query methods based on method naming conventions.

Example Usage

3. Advanced Querying with SolrTemplate

Using SolrTemplate

The SolrTemplate class offers flexibility for advanced Solr queries.

Example: Query by Field

Example: Pagination and Sorting

Practical Example

Here’s a practical example combining repository and template-based queries:

Conclusion

Implementing Solr queries in Spring Boot involves using SolrCrudRepository for simple searches and SolrTemplate for advanced, flexible queries. The repository-based approach simplifies common tasks, while SolrTemplate empowers developers to handle complex queries with pagination and sorting. These tools make Solr querying efficient and effective in Spring Boot applications.