liang-spring-ai/src/main/java/com/example/springaidemo/service/VectorService.java

package com.example.springaidemo.service;

import org.springframework.ai.document.Document;
import org.springframework.ai.vectorstore.SearchRequest;
import org.springframework.ai.vectorstore.VectorStore;
import org.springframework.ai.vectorstore.elasticsearch.ElasticsearchVectorStore;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class VectorService {

    @Autowired VectorStore vectorStore;

    public void storeVector(){
        List<Document> documents = List.of(
                new Document("Spring AI rocks!! Spring AI rocks!! Spring AI rocks!! Spring AI rocks!! Spring AI rocks!!"),
                new Document("The World is Big and Salvation Lurks Around the Corner"),
                new Document("You walk forward facing the past and you turn back toward the future."));

// Add the documents to Elasticsearch
        vectorStore.add(documents);

// Retrieve documents similar to a query
        List<Document> results = this.vectorStore.similaritySearch(SearchRequest.builder().query("Spring").topK(5).build());
    }
}