milvus-io/milvus-sdk-java

Java SDK for Milvus.

What it solves

Milvus is a vector database, and this SDK gives Java developers an easy way to talk to it. Without it, you'd have to write your own low-level network code to send requests to a Milvus server. The SDK handles that for you, so you can focus on your application logic.

How it works

The SDK provides Java classes and methods that mirror Milvus's API. You add it to your project via Maven or Gradle. It connects to a running Milvus instance, and you can use it to manage data and queries. The README also mentions an optional BulkWriter tool for bulk data import (available as a separate package since version 2.5.2). And for Spring Boot applications, there's a starter that auto-configures a client from properties.

Who it's for

Java developers who want to use Milvus in their applications. It requires Java 8 or higher, and it's commonly used in projects that handle large-scale vector similarity search, like recommendation systems, image search, or AI-powered features.

Highlights

  • Official Java SDK for Milvus (versions matched to Milvus releases)
  • Works with Java 8 and up, and can be installed via Maven or Gradle
  • Optional BulkWriter package for efficient bulk data loading (since v2.5.2)
  • Spring Boot starter for easy integration in Spring apps (requires Java 17+)

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