java的基于TCP的Socket编程

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主要用到Socket类。new一个Socket类指定连接的服务器和端口号

void sock1(){
        System.out.println("客户端");
        try {
            Socket socket=new Socket("localhost",8800);
            InputStream is=socket.getInputStream();
            OutputStream os=socket.getOutputStream();
            String str="说句假话，我好爱你呀。";//中文一般用字节流，方便修改编码方式
            os.write(str.getBytes());
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

服务器需要new一个serverSocket指定端口号
调用serverSocket.accept()生成Socket对象

void run17() {
        System.out.println("服务器");
        try {
            ServerSocket serverSocket = new ServerSocket(8800);
            Socket accept = serverSocket.accept();
            InputStream is = accept.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(is));//缓冲区存接受到的字节码
            int n;
            String str = "";
            while ((str = br.readLine()) != null) {//逐行读取
                System.out.println(str);
            }

            serverSocket.close();
            accept.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }