54.HarmonyOS鸿蒙系统 App(ArkTS)tcp socket套接字网络连接
import socket from '@ohos.net.socket';
import process from '@ohos.process';
import wifiManager from '@ohos.wifiManager';
import common from '@ohos.app.ability.common';
let tcp = socket.constructTCPSocketInstance();
//let ipAddress = wifiManager.getIpInfo().ipAddress; //真机测试
//let local_ip2 = (ipAddress>>24 &0xFF)+"."+(ipAddress>>16 &0xFF)+"."+(ipAddress>>8 &0xFF)+"."
//+(ipAddress &0xFF) //真机测试
let local_ip2 = '127.0.0.1' //用于模拟器，真机则屏蔽此处
@Entry
@Component
struct Index {
@State message: string = 'Hello World'
@State local_ip:string = local_ip2
@State local_port:number =6666
@State ip_addr:string ='192.168.10.104'
@State port:number =8080
@State send_msg:string ='send content'
@State recv_msg:string =''
build() {
Column() {
Row(){
Text(' ')
}
Row(){
Text('TCP socket测试连接')
.fontSize(38)
.fontColor(Color.White)
.backgroundColor(Color.Blue)
}
Row(){
Text('本机IP:').fontSize(28)
.backgroundColor(Color.Green)
TextInput({text:`${this.local_ip}`})
.fontSize(28)
.width(280)
.backgroundColor(Color.Transparent)
.onChange((value:string)=>{
this.local_ip = value
})
}
Row(){
Text('端口:').fontSize(28)
.backgroundColor(Color.Green)
TextInput({text:`${this.local_port}`})
.fontSize(28)
.width(280)
.backgroundColor(Color.Transparent)
.onChange((value:string)=>{
this.local_port = parseInt(value, 10); //字符转数字
})
}
Row(){
Text('服务器IP:').fontSize(28)
.backgroundColor(Color.Green)
TextInput({text:`${this.ip_addr}`})
.fontSize(28)
.width(280)
.backgroundColor(Color.Transparent)
.onChange((value:string)=>{
this.ip_addr = value
})
}
Row(){
Text('端口:').fontSize(28)
.backgroundColor(Color.Green)
TextInput({text:`${this.port}`})
.fontSize(28)
.width(280)
.backgroundColor(Color.Transparent)
.onChange((value:string)=>{
this.port = parseInt(value, 10); //字符转数字
})
}
Row(){
Text('发送:').fontSize(28)
}.align(Alignment.Start)
Row(){
TextArea({text:`${this.send_msg}`})
.fontSize(28)
.height(100)
.onChange((value:string)=>{
this.send_msg = value
})
}
Row(){
Text('接收:').fontSize(28)
}.align(Alignment.Start)
Row(){
TextArea({text:`${this.recv_msg}`}).fontSize(28) //文本自动换行
.height(200)
}
Row()
{
Button('连接')
.width(100)
.fontSize(28)
.onClick(() => {
// 绑定IP地址和端口。//连接服务器，必须首先绑定本机IP
let bindAddress = {
address: this.local_ip,
port: this.local_port, // 绑定端口，如1234
family: 1
};
tcp.bind(bindAddress, err => {
if (err) {
console.log('bind fail_local');
this.recv_msg = 'connect fail_local,IP:'+this.local_ip
return;
}
console.log('bind success_local');
this.recv_msg = 'connect fail_local,IP:'+this.local_ip
})
let connectAddress = {
address: this.ip_addr,
port: this.port, // 连接端口，如5678
family: 1
};
tcp.connect({
address: connectAddress, timeout: 3000
},err=>{
if (err) {
console.log('connect fail_remote');
this.recv_msg = 'connect fail_remote,IP:'+this.ip_addr
return;
}
console.log('connect success');
this.recv_msg = 'connect success_remote,IP:'+this.ip_addr
}
)
})
Button('______').onClick((event: ClickEvent) => {
})
Button('发送')
.width(100)
.fontSize(28)
.onClick((event: ClickEvent) => {
tcp.send({
data: this.send_msg
}, err => {
if (err) {
console.log('send fail');
this.recv_msg='send fail_remote'
return;
}
console.log('send success');
this.recv_msg='send success_remote';
})
})
}
Row(){
Button('退出')
.width(100)
.fontSize(28)
.onClick((event: ClickEvent) => {
tcp.close();
const context = getContext(this) as common.UIAbilityContext;
context.terminateSelf();
let applicationContext = context.getApplicationContext();
// applicationContext.killProcessesBySelf().
// then((data)=>
// {console.log('The process running information is:'+ JSON.stringify(data));})
// .catch((error)=>{console.error('error:'+ JSON.stringify(error));})
// process.kill(0, process.pid)
// process.exit(0)
})
}
}
.width('100%')
.padding(20) //边距
.backgroundColor(Color.Gray)
}
}配置权限：
arkts获取真机本机IP：
连接远程服务器，tcp/ip,必须绑定本机IP
