ohos.net.socket (Socket连接)链接不上

ohos.net.http (数据请求)可以请求ip地址,数据正常返回

1.ohos.net.socket (Socket连接) 报连接失败

onInit(){

        let udp = socket.constructUDPSocketInstance();
        udp.bind({address: '192.168.199.205', port: 8888, family: 1}, err => {
            if (err) {
                console.log('bind fail');
                this.message = '失败';
                this.error = err.message;
                return;
            }
            this.message = '成功';
        })

    }

2.报err对象 {  code = 99 }

3.socket udp server 服务端代码(java)