连接数据库

安装驱动并部署一个嬴图实例后，就可以将应用连接到数据库了。

建立连接

使用包含数据库连接配置的UltipaConfig实例化NewUltipaDriver()，从而创建一个连接。

更多连接配置项 →

package main

import (
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config := &configuration.UltipaConfig{
        // URI example: Hosts: []string{"xxxx.us-east-1.cloud.ultipa.com:60010"},
		Hosts:    []string{"10.xx.xx.xx:60010"},
		Username: "<username>",
		Password: "<password>",
	}

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

    // Tests the connection
	isSuccess, _ := driver.Test(nil)
	println("Connection succeeds:", isSuccess)
}

Connection succeeds: true

使用配置文件

本例演示如何使用配置文件config.yml建立连接：

package main

import (
	"log"

	"github.com/ultipa/ultipa-go-driver/v5/sdk"
	"github.com/ultipa/ultipa-go-driver/v5/sdk/configuration"
)

func main() {
	config, _ := configuration.LoadConfigFromYAML("./config.yml")

	driver, err := sdk.NewUltipaDriver(config)
	if err != nil {
		log.Fatalln("Failed to connect to Ultipa:", err)
	}

	// Tests the connection
	isSuccess, _ := driver.Test(nil)
	println("Connection succeeds:", isSuccess)
}

Connection succeeds: true

config.yml文件示例：

# hosts: ["mqj4zouys.us-east-1.cloud.ultipa.com:60010"]
hosts: 
  - "10.xx.xx.xx:60010"
  - "10.xx.xx.xx:60010"
  - "10.xx.xx.xx:60010"
username: "<username>"
password: "<password>"
default_graph: "miniCircle"
crt: 
max_recv_size:

更多连接配置项 →

连接配置

UltipaConfig或配置文件可包含以下字段：