# 1.創建線程池
~~~
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Socket;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* 線程池
*/
public class HandlerSocketServerPool {
// 儲存線程池對象
private ExecutorService executorService;
/**
*
* @param maxThreadNum 最大線程池
* @param queueSize 處理任務的個數
* public ThreadPoolExecutor(int corePoolSize, 核心線程數
* int maximumPoolSize,最大線程數量
* long keepAliveTime,線程空閑時間
* TimeUnit unit, 線程空閑時間 單位
* BlockingQueue<Runnable> workQueue)
*/
HandlerSocketServerPool(int maxThreadNum,int queueSize){
executorService=
new ThreadPoolExecutor(
3,maxThreadNum,
120, TimeUnit.SECONDS,
// ArrayBlockingQueue 阻塞式隊列 泛型任務對象 queueSize 最大任務對象
new ArrayBlockingQueue<Runnable>(queueSize)
);
}
/**
* 提交任務讓消息隊列緩存起來
* @param target
*/
public void execute(Runnable target) {
// 執行
executorService.execute(target);
}
}
~~~
# 2.創建任務對象
~~~
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Socket;
/**
* 任務對象
*/
public class ServerRunnableTarget implements Runnable {
private Socket socket;
public ServerRunnableTarget(Socket socket){
this.socket=socket;
}
@Override
public void run() {
// 從socket中獲取字節輸入流對象
try (InputStream inputStream = socket.getInputStream()) {
//把字節輸入流包裝成緩存字節輸入流
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
String msg;
while ((msg=bufferedReader.readLine())!=null){
System.out.println("服務器收到信息："+msg);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
~~~
# 3.創建服務端
~~~
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
public static void main(String[] args) {
System.out.println("服務端啟動");
try {
// ServerSocket 對象進行服務器端口注冊
ServerSocket serverSocket = new ServerSocket(9999);
// 初始化線程池
final HandlerSocketServerPool pool = new HandlerSocketServerPool(3, 10);
while (true){
Socket socket = serverSocket.accept();
// 把socket交給線程池進行處理
ServerRunnableTarget target = new ServerRunnableTarget(socket);
// 提交任務
pool.execute(target);
}
}catch (Exception e){
e.fillInStackTrace();
}
}
}
~~~
# 4. 創建客戶端
~~~
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
public class Client {
public static void main(String[] args) {
try {
// 創建socket鏈接請求
Socket socket = new Socket("127.0.0.1", 9999);
// 從socket中獲取字節輸出流對象
OutputStream socketOutputStream = socket.getOutputStream();
//把字節輸出流包裝成打印流
PrintStream printStream = new PrintStream(socketOutputStream);
// 掃描器
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("請說：");
printStream.println(scanner.nextLine());
printStream.flush();
}
} catch (Exception e) {
e.fillInStackTrace();
}
}
}
~~~
