java socket

最新推荐文章于 2024-07-18 17:37:17 发布

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本文介绍Java中实现客户端与服务器之间的基本网络通信的方法，并进一步讲解如何通过SSL建立安全的连接。文中提供了ServerSocket与Socket的基础使用示例，以及使用JKS密钥库配置SSL上下文的具体步骤。

JAVA CODE:
SERVER DEMO
int port = 12345;
ServerSocket serversocket = new ServerSocket(port);
Socket socket = serversocket.accept();

InputStreamReader bis = new InputStreamReader(socket.getInputStream());
OutputStreamWriter bos = new OutputStreamWriter(socket.getOutputStream());

CLIENT DEMO
String ip = "192.168.1.99";
String port = 12345;

Socket socket = new Socket(ip, port);

InputStreamReader bis = new InputStreamReader(socket.getInputStream());
OutputStreamWriter bos = new OutputStreamWriter(socket.getOutputStream());

socket.close();

SSL SERVER
String FilePath = "d:\\key.jks";
String psw = "123456";

KeyStore ks = KeyStore.getInstance("JKS");
ks.load(new FileInputStream(FilePath), psw.toCharArray());
TrustManagerFactory tmf = TrustManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
tmf.init(ks);

SSLContext ctx = SSLContext.getInstance("TLS");
ctx.init(null, tmf.getTrustManagers(), null);

SSLServerSocketFactory socketServerFactory = ctx.getServerSocketFactory();
SSLServerSocket socketServer = (SSLServerSocket) socketFactory.createServerSocket(12345);
SSLSocket socket = (SSLSocket) socketServer.accept();

SSL CLIENT
String FilePath = "d:\\key.jks";
String psw = "123456";

KeyStore ks = KeyStore.getInstance("JKS");
ks.load(new FileInputStream(FilePath), psw.toCharArray());
TrustManagerFactory tmf = TrustManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
tmf.init(ks);

SSLContext ctx = SSLContext.getInstance("TLS");
ctx.init(null, tmf.getTrustManagers(), null);

SSLSocketFactory socketFactory = ctx.getSocketFactory();
SSLSocket socket = (SSLSocket) socketFactory.createSocket("localhost", 12345);