Java.net概述

开发平台 .NET和Java都是广泛应用的编程语言。在这两者中，Java.net是Java平台给的关键组成有些，专门用于网络编程。

Java.net给了一系列用于网络编程的API集合， 包括Socket、ServerSocket、URL等，旨在帮开发者实现网络连接和传信。

Socket与ServerSocket的应用

Socket类实现了进程间传信的机制，允许建立客户端到服务器的连接。ServerSocket类则用于创建服务端应用程序，等待客户端求。

        // 服务端程序
        ServerSocket serverSocket = new ServerSocket;
        Socket socket = serverSocket.accept;
        InputStream inputStream = socket.getInputStream;
        OutputStream outputStream = socket.getOutputStream;
        inputStream.read;
        outputStream.write);
        socket.close;
        serverSocket.close;
        // 客户端程序
        Socket socket = new Socket;
        OutputStream outputStream = socket.getOutputStream;
        InputStream inputStream = socket.getInputStream;
        outputStream.write);
        inputStream.read;
        socket.close;
    

URL与URLConnection的用

URL类用于表示网络材料， URLConnection则用于获取这些个材料的输入输出流，并设置网络连接属性。

        URLConnection urlConnection = url.openConnection;
        InputStream inputStream = urlConnection.getInputStream;
        BufferedReader bufferedReader = new BufferedReader);
        String line;
        while ) != null) {
            System.out.println;
        }
        bufferedReader.close;
        inputStream.close;
    

DatagramSocket的UDP传信

DatagramSocket类支持UDP协议的传信，适用于广播和许多播等应用场景。

        // 服务端程序
        DatagramSocket serverSocket = new DatagramSocket;
        byte buffer = new byte;
        DatagramPacket packet = new DatagramPacket;
        serverSocket.receive;
        System.out.println));
        serverSocket.close;
        // 客户端程序
        DatagramSocket clientSocket = new DatagramSocket;
        byte buffer = "Hello Server".getBytes;
        InetAddress inetAddress = InetAddress.getByName;
        DatagramPacket packet = new DatagramPacket;
        clientSocket.send;
        clientSocket.close;
    

HttpURLConnection的HTTP传信

HttpURLConnection是URLConnection的子类， 给HTTP协议支持，用于实现HTTP客户端和发送HTTP求。

        // 发起HTTP GET求
        HttpURLConnection urlConnection =  url.openConnection;
        urlConnection.setRequestMethod;
        urlConnection.setDoOutput;
        StringBuilder responseBuilder = new StringBuilder;
        BufferedReader reader = new BufferedReader));
        String line;
        while ) != null) {
            responseBuilder.append;
        }
        urlConnection.disconnect;
        reader.close;
        // 发起HTTP POST求
        urlConnection =  url.openConnection;
        urlConnection.setRequestMethod;
        urlConnection.setDoOutput;
        OutputStreamWriter writer = new OutputStreamWriter);
        writer.write;
        writer.flush;
        reader = new BufferedReader));
        responseBuilder = new StringBuilder;
        while ) != null) {
            responseBuilder.append;
        }
        urlConnection.disconnect;
        reader.close;
        writer.close;
    

SocketChannel和ServerSocketChannel的非阻塞I/O

SocketChannel和ServerSocketChannel类支持非阻塞I/O，适用于高大并发的网络编程场景。

通过以上详细解析和应用实例，相信您对Java.net的用法和原理有了更深厚入的搞懂。在实际开发中，合理运用这些个API，将有助于提升网络编程的效率和稳稳当当性。

欢迎用实际体验验证观点，共同探讨Java.net的更许多应用技巧。