Socket简单实现多线程通信
闲来无事，把之前用到的整理上来以备忘
SocketServer 类实现：
import java.io.*;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
public class SocketServer extends Thread {
String tag = "服务器：";
String ip;
int port = 0;
ServerSocket serverSocket;
int countClient = 0;
private ArrayList
public static SocketServer getInstance(){
return SingleInstance.INSTANCE;
}
public static class SingleInstance{
private final static SocketServer INSTANCE = new SocketServer();
}
public SocketServer bindPort(int port){
this.port = port;
return this;
}
@Override
public void run() {
super.run();
Socket socket = null;
while (true){
try {
if(null==serverSocket||serverSocket.isClosed()){
System.out.println(tag+"开始绑定端口");
serverSocket = new ServerSocket(port);
}
System.out.println(tag+"等待客户端接入");
socket = serverSocket.accept();
ClientThread clientThread = new ClientThread(socket);
clientThread.start();
countClient++;
sockets.add(socket);
InetAddress inetAddress = socket.getInetAddress();
System.out.println(tag+"客户端数量："+countClient+",当前连入客户端是："+inetAddress.getHostAddress());
}catch (IOException e){
System.out.println(tag+"Server error:"+e.getCause());
}
}
}
public void publishOthers(Socket socket,String data){
for(Socket item:sockets){
if(item!=socket&&!item.isClosed()){
try {
System.out.println(tag+socket+"将数据"+data+"广播给"+item);
OutputStream outputStream = item.getOutputStream();
PrintWriter pw = new PrintWriter(outputStream);
pw.write(data);
pw.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public class ClientThread extends Thread{
Socket socket ;
public ClientThread(Socket socket){
this.socket = socket;
}
@Override
public void run() {
super.run();
InputStream inputStream = null;
OutputStream outputStream = null;
InputStreamReader inputStreamReader = null;
BufferedReader bufferedReader = null;
String input = null;
while (true){
try {
System.out.println(tag+"ClientThread.run");
inputStream = socket.getInputStream();
inputStreamReader = new InputStreamReader(inputStream);
bufferedReader = new BufferedReader(inputStreamReader);
while ((input=bufferedReader.readLine())!=null){
System.out.println(tag+"data from client="+input);
publishOthers(socket,input);
}
}catch (IOException e){
System.out.println(tag+"ClientThread error e:"+e.getCause());
try {
if(null!=inputStream)
inputStream.close();
if(null!=outputStream){
outputStream.close();
}
if(null!=inputStreamReader){
inputStreamReader = null;
}
if(null!=bufferedReader)
bufferedReader.close();
if(null!=socket)
socket.close();
}catch (IOException e1){
System.out.println(tag+"ClientThread error e1:"+e1.getCause());
}
}
}
}
}
}
接下来 SocketClient类实现
import java.io.*;
import java.net.Socket;
public class SocketClient extends Thread {
String tag = "客户端"+toString();
String address;
int port = 0;
Socket socket;
String sendMsg;
public static SocketClient getInstance(){
return SingleInstance.INSTANCE;
}
public static class SingleInstance {
private final static SocketClient INSTANCE = new SocketClient();
}
public SocketClient bindServer(String address,int port){
if(null==address||address.length()==0||port<0){
System.out.println(tag+"SocketClient 地址或者端口不正确");
}
this.address = address;
this.port = port;
return this;
}
OutputStream outputStream = null;
InputStream inputStream = null;
BufferedReader bufferedReader = null;
@Override
public void run() {
super.run();
while (true){
try {
if(null==socket||socket.isClosed()){
System.out.println(tag+"Socket Connect to "+address+" : "+port);
socket = new Socket(address,port);
outputStream = socket.getOutputStream();
inputStream = socket.getInputStream();
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
}
String data = null;
while ((data=bufferedReader.readLine())!=null){
System.out.println(tag+"get data from server:"+data);
}
}catch (IOException e){
System.out.println(tag+"error:"+e.getCause());
}
}
}
public void sendMsg(String data){
if(sendMsgThread==null){
sendMsgThread = new SendMsgThread();
sendMsgThread.start();
}
this.sendMsg = data;
synchronized (sendMsgThread){
sendMsgThread.notify();
}
}
private SendMsgThread sendMsgThread;
public class SendMsgThread extends Thread{
@Override
public void run() {
super.run();
while (true){
synchronized (this){
if(null==sendMsg||sendMsg.length()==0){
try {
System.out.println(tag+"SendMsgThread wait-------------");
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}else{
System.out.println(tag+"SendMsgThread notify-----------------");
notify();
}
if(null!=outputStream){
System.out.println(tag+"SendMsgThread write");
PrintWriter pw = new PrintWriter(outputStream);
pw.write(sendMsg);
pw.flush();
sendMsg = null;
}
}
}
}
}
}
简单测试程序
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
public class Main {
public static void main(String[] args) {
ArrayList
System.out.println("Start Main :: Socket Server Start...");
SocketServer.getInstance().bindPort(7777).start();
try {
Thread.sleep(3000);
System.out.println("Start Main :: after 3000...");
} catch (InterruptedException e) {
e.printStackTrace();
}
SocketClient socketClient1 = new SocketClient().bindServer("127.0.0.1",7777);
System.out.println("Start Main :: SocketClient start:"+socketClient1);
socketClient1.start();
try {
Thread.sleep(2000);
System.out.println("Start Main :: after 3000...");
SocketClient socketClient2 = new SocketClient().bindServer("127.0.0.1",7777);
System.out.println("Start Main :: SocketClient start:"+socketClient2);
socketClient2.start();
Thread.sleep(2000);
System.out.println("Start Main :: after 3000...");
socketClient1.sendMsg("你好，我是"+socketClient1+"\r\n");
Thread.sleep(2000);
System.out.println("Start Main :: after 3000...");
socketClient1.sendMsg("你好，我是"+socketClient1+"\r\n");
Thread.sleep(2000);
System.out.println("Start Main :: after 3000...");
socketClient2.sendMsg("你好，我是2"+socketClient2+"\r\n");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
测试结果：
D:\java\jdk1.8.0_181\bin\java.exe "-javaagent:D:\JetBrains\IntelliJ IDEA 2018.2.3\lib\idea_rt.jar=50325:D:\JetBrains\IntelliJ IDEA 2018.2.3\bin" -Dfile.encoding=UTF-8 -classpath D:\java\jdk1.8.0_181\jre\lib\charsets.jar;D:\java\jdk1.8.0_181\jre\lib\deploy.jar;D:\java\jdk1.8.0_181\jre\lib\ext\access-bridge-64.jar;D:\java\jdk1.8.0_181\jre\lib\ext\cldrdata.jar;D:\java\jdk1.8.0_181\jre\lib\ext\dnsns.jar;D:\java\jdk1.8.0_181\jre\lib\ext\jaccess.jar;D:\java\jdk1.8.0_181\jre\lib\ext\jfxrt.jar;D:\java\jdk1.8.0_181\jre\lib\ext\localedata.jar;D:\java\jdk1.8.0_181\jre\lib\ext\nashorn.jar;D:\java\jdk1.8.0_181\jre\lib\ext\sunec.jar;D:\java\jdk1.8.0_181\jre\lib\ext\sunjce_provider.jar;D:\java\jdk1.8.0_181\jre\lib\ext\sunmscapi.jar;D:\java\jdk1.8.0_181\jre\lib\ext\sunpkcs11.jar;D:\java\jdk1.8.0_181\jre\lib\ext\zipfs.jar;D:\java\jdk1.8.0_181\jre\lib\javaws.jar;D:\java\jdk1.8.0_181\jre\lib\jce.jar;D:\java\jdk1.8.0_181\jre\lib\jfr.jar;D:\java\jdk1.8.0_181\jre\lib\jfxswt.jar;D:\java\jdk1.8.0_181\jre\lib\jsse.jar;D:\java\jdk1.8.0_181\jre\lib\management-agent.jar;D:\java\jdk1.8.0_181\jre\lib\plugin.jar;D:\java\jdk1.8.0_181\jre\lib\resources.jar;D:\java\jdk1.8.0_181\jre\lib\rt.jar;E:\IdeaProjects\untitled\out\production\untitled Main
Start Main :: Socket Server Start...
服务器：开始绑定端口
服务器：等待客户端接入
Start Main :: after 3000...
Start Main :: SocketClient start:Thread[Thread-1,5,main]
客户端Thread[Thread-1,5,main]Socket Connect to 127.0.0.1 : 7777
服务器：客户端数量：1,当前连入客户端是：127.0.0.1
服务器：等待客户端接入
服务器：ClientThread.run
Start Main :: after 3000...
Start Main :: SocketClient start:Thread[Thread-3,5,main]
客户端Thread[Thread-3,5,main]Socket Connect to 127.0.0.1 : 7777
服务器：客户端数量：2,当前连入客户端是：127.0.0.1
服务器：等待客户端接入
服务器：ClientThread.run
Start Main :: after 3000...
客户端Thread[Thread-1,5,main]SendMsgThread notify-----------------
客户端Thread[Thread-1,5,main]SendMsgThread write
客户端Thread[Thread-1,5,main]SendMsgThread wait-------------
服务器：data from client=你好，我是Thread[Thread-1,5,main]
服务器：Socket[addr=/127.0.0.1,port=50330,localport=7777]将数据你好，我是Thread[Thread-1,5,main]广播给Socket[addr=/127.0.0.1,port=50331,localport=7777]
Start Main :: after 3000...
客户端Thread[Thread-1,5,main]SendMsgThread write
客户端Thread[Thread-1,5,main]SendMsgThread wait-------------
服务器：data from client=你好，我是Thread[Thread-1,5,main]
服务器：Socket[addr=/127.0.0.1,port=50330,localport=7777]将数据你好，我是Thread[Thread-1,5,main]广播给Socket[addr=/127.0.0.1,port=50331,localport=7777]
Start Main :: after 3000...
客户端Thread[Thread-3,5,main]SendMsgThread notify-----------------
客户端Thread[Thread-3,5,main]SendMsgThread write
客户端Thread[Thread-3,5,main]SendMsgThread wait-------------
服务器：data from client=你好，我是2Thread[Thread-3,5,main]
服务器：Socket[addr=/127.0.0.1,port=50331,localport=7777]将数据你好，我是2Thread[Thread-3,5,main]广播给Socket[addr=/127.0.0.1,port=50330,localport=7777]
未尽完善，还请路过大神不吝赐教。