Nebula Graph-06-NebulaGraph Java 使用 和SpringBoot集成Nebula Graph

要在Spring Boot中集成Nebula Graph，你需要使用Nebula Graph的Java客户端。以下是一个基本的集成步骤：

1. 在pom.xml中添加Nebula Graph Java客户端依赖。
2. 配置Nebula Graph客户端连接。
3. 创建服务以与Nebula Graph交互。

以下是一个简化的例子：

1. 添加依赖到pom.xml：

<dependencies>
    <!-- Nebula Graph Java客户端 -->
    <dependency>
        <groupId>com.vesoft</groupId>
        <artifactId>nebula-java</artifactId>
        <version>版本号</version>
    </dependency>
</dependencies>

2. 在application.properties或application.yml中配置Nebula Graph连接信息：

# Nebula Graph 连接配置
nebula.address=<nebula_graph_address>
nebula.username=<username>
nebula.password=<password>

3. 创建配置类和服务类：

import com.vesoft.nebula.graph.client.GraphClient;
import com.vesoft.nebula.graph.client.NebulaPoolConfig;
import com.vesoft.nebula.graph.client.data.HostAddress;
import com.vesoft.nebula.graph.client.data.ResultSet;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import java.util.ArrayList;
import java.util.List;
 
@Configuration
public class NebulaGraphConfig {
 
    @Value("${nebula.address}")
    private String address;
 
    @Value("${nebula.username}")
    private String username;
 
    @Value("${nebula.password}")
    private String password;
 
    @Bean
    public GraphClient graphClient() {
        String[] addrs = address.split(",");
        List<HostAddress> addresses = new ArrayList<>();
        for (String addr : addrs) {
            String[] parts = addr.split(":");
            addresses.add(new HostAddress(parts[0], Integer.parseInt(parts[1])));
        }
        NebulaPoolConfig nebulaPoolConfig = new NebulaPoolConfig();
        return new GraphClient(addresses, nebulaPoolConfig, 1000, 3);
    }
}

服务类可以是：

import com.vesoft.nebula.graph.client.GraphClient;
import com.vesoft.nebula.graph.common.ErrorCode;
import com.vesoft.nebula.graph.common.HostAddress;
import com.vesoft.nebula.graph.common.NebulaCodec;
import com.vesoft.nebula.graph.common.ResultSet;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
 
import java.util.ArrayList;
import java.util.List;
 
@Service
public class NebulaGraphService {
 
    @Autowired
    private GraphClient graphClient;
 
    public ResultSet execute(String sentence) {
        try {
            return