深入浅出 Java SSL/TLS：全面解析安全传输层协议

import javax.net.ssl.*;

public class SSLServer {

public static void main(String[] args) throws Exception {
// 创建 SSL 上下文
SSLContext sslContext = SSLContext.getInstance("TLS");

// 加载证书
KeyStore keyStore = KeyStore.getInstance("JKS");
keyStore.load(new FileInputStream("server.jks"), "passWord".toCharArray());

// 初始化 SSL 上下文
sslContext.init(null, keyStore.geTKEyManagers(), null);

// 创建 SSL 套接字工厂
SSLServerSocketFactory sslServerSocketFactory = sslContext.getServerSocketFactory();

// 创建 SSL 服务器套接字
SSLServerSocket sslServerSocket = (SSLServerSocket) sslServerSocketFactory.createServerSocket(443);

// 等待客户端连接
SSLSocket sslSocket = (SSLSocket) sslServerSocket.accept();

// 从客户端读取数据
BufferedReader reader = new BufferedReader(new InputStreamReader(sslSocket.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}

// 向客户端写入数据
PrintWriter writer = new PrintWriter(sslSocket.getOutputStream());
writer.println("Hello, client!");
writer.flush();

// 关闭连接
sslSocket.close();
sslServerSocket.close();
}
}

import javax.net.ssl.*;

public class SSLClient {

public static void main(String[] args) throws Exception {
// 创建 SSL 上下文
SSLContext sslContext = SSLContext.getInstance("TLS");

// 加载证书
KeyStore trustStore = KeyStore.getInstance("JKS");
trustStore.load(new FileInputStream("client.jks"), "password".toCharArray());

// 初始化 SSL 上下文
sslContext.init(null, null, trustStore.getKeyManagers());

// 创建 SSL 套接字工厂
SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

// 创建 SSL 客户端套接字
SSLSocket sslSocket = (SSLSocket) sslSocketFactory.createSocket("localhost", 443);

// 连接到服务器
sslSocket.connect();

// 向服务器写入数据
PrintWriter writer = new PrintWriter(sslSocket.getOutputStream());
writer.println("Hello, server!");
writer.flush();

// 从服务器读取数据
BufferedReader reader = new BufferedReader(new InputStreamReader(sslSocket.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}

// 关闭连接
sslSocket.close();
}
}