java網絡編程5-SSL

服務器端

System.out.println("等待客戶端連接...");
File keyFile=new File("C:/Users/mu/Desktop/mu.p12");
InputStream stream=new FileInputStream(keyFile);
char[] password="123456".toCharArray();

//KeyStore用於存放證書，創建對象時 指定交換數字證書的加密標准
KeyStore keyStore=KeyStore.getInstance("pkcs12"); //KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(stream, password);
stream.close();

//KeyManager選擇證書證明自己的身份
KeyManagerFactory keyManagerFactory=KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
keyManagerFactory.init(keyStore,password);
KeyManager[] keyManagers=keyManagerFactory.getKeyManagers();

//TrustManager決定是否信任對方的證書
TrustManagerFactory trustManagerFactory=TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(keyStore);
TrustManager[] trustManagers=trustManagerFactory.getTrustManagers();

SSLContext context=SSLContext.getInstance("SSL");
context.init(keyManagers, trustManagers, null);
SSLServerSocketFactory factory=context.getServerSocketFactory();
SSLServerSocket serverSocket=(SSLServerSocket)factory.createServerSocket(3344);
SSLSocket socket=(SSLSocket)serverSocket.accept();

System.out.println("有客戶端連接");
System.out.println("向客戶端輸出信息");
OutputStream outputStream=socket.getOutputStream();
BufferedWriter writer=new BufferedWriter(new OutputStreamWriter(outputStream));
writer.write("hello world\r\n");
writer.write("\r\n");
writer.flush();
System.out.println("輸出結束");
socket.close();
serverSocket.close();

---

客戶端

System.out.println("准備連接服務端");
File keyFile=new File("C:/Users/mu/Desktop/mu.p12");
InputStream stream=new FileInputStream(keyFile);
char[] password="123456".toCharArray();

//指定交換數字證書的加密標准
KeyStore keyStore= KeyStore.getInstance("pkcs12");//KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(stream, password);
stream.close();

//TrustManager決定是否信任對方的證書
TrustManagerFactory trustManagerFactory=TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(keyStore);
TrustManager[] trustManagers=trustManagerFactory.getTrustManagers();

SSLContext context=SSLContext.getInstance("SSL");
context.init(null, trustManagers, null);
SSLSocketFactory factory=context.getSocketFactory();
SSLSocket socket=(SSLSocket) factory.createSocket("localhost", 3344);

InputStream inputStream=socket.getInputStream();
BufferedReader reader=new BufferedReader(new InputStreamReader(inputStream));
String str=null;
while ((str=reader.readLine())!=null) {
    if(str.equals(""))
        break;
    System.out.println(str);
}
socket.close();