使用JAVA获取nacos配置信息出现null,获取不到的解决_Java

java获取nacos配置信息出现null

引入jar包

 <dependency>
            <groupid>com.alibaba.nacos</groupid>
            <artifactid>nacos-client</artifactid>
            <version>2.0.3</version>
  </dependency>

根据官方文档使用configservice获取配置信息

import java.util.properties;
import java.util.concurrent.executor;
import com.alibaba.nacos.api.nacosfactory;
import com.alibaba.nacos.api.propertykeyconst;
import com.alibaba.nacos.api.config.configservice;
import com.alibaba.nacos.api.config.listener.listener;
import com.alibaba.nacos.api.exception.nacosexception;

public class testn {

    public static void main(string[] args) throws nacosexception, interruptedexception {
        string serveraddr = "139.9.5.70:8848";
        string dataid = "nacos_simpe";
        string group = "default_group";
        properties properties = new properties();
        properties.put(propertykeyconst.server_addr, serveraddr);
        configservice configservice = nacosfactory.createconfigservice(properties);
        string content = configservice.getconfig(dataid, group, 5000);
        system.out.println(content);
        configservice.addlistener(dataid, group, new listener() {
            @override
            public void receiveconfiginfo(string configinfo) {
                system.out.println("recieve:" + configinfo);
            }

            @override
            public executor getexecutor() {
                return null;
            }
        });

        boolean ispublishok = configservice.publishconfig(dataid, group, "content");
        system.out.println(ispublishok);

        thread.sleep(3000);
        content = configservice.getconfig(dataid, group, 5000);
        system.out.println(content);

        boolean isremoveok = configservice.removeconfig(dataid, group);
        system.out.println(isremoveok);
        thread.sleep(3000);

        content = configservice.getconfig(dataid, group, 5000);
        system.out.println(content);
        thread.sleep(300000);
    }
}


```bash
在这里插入代码片

调用出现null空的情况。