监听nacos设置，如何动态刷新数据库连接

package main

import (
    "fmt"

    "github.com/nacos-group/nacos-sdk-go/clients"
    "github.com/nacos-group/nacos-sdk-go/clients/config_client"
    "github.com/nacos-group/nacos-sdk-go/common/logger"
    "github.com/nacos-group/nacos-sdk-go/common/constant"
    "github.com/nacos-group/nacos-sdk-go/vo"
)

func main() {
    // 构造Nacos SDK客户端配置
    serverConfigs := []constant.ServerConfig{
        {
            IpAddr: "localhost",
            Port:   8848,
        },
    }
    clientConfig := constant.ClientConfig{
        NamespaceId:         "your-namespace-id",
        TimeoutMs:           10 * 1000,
        NotLoadCacheAtStart: true,
    }

    // 创建config_client.ConfigClient对象
    cc, err := clients.CreateConfigClient(map[string]interface{}{
        "serverConfigs": serverConfigs,
        "clientConfig":  clientConfig,
    })
    if err != nil {
        panic(err)
    }

    // 监听名为database的配置项
    err = cc.ListenConfig(vo.ConfigParam{
        DataId: "database",
        Group:  "default_group",
    }, func(namespace, group, dataId, data string) {
        // 在回调函数中重新加载数据库连接
        fmt.Printf("Config changed: %s\n", data)
        // TODO: 重新加载数据库连接
    })
    if err != nil {
        panic(err)
    }

    // 其他应用程序逻辑
}
Copy