SSL Java Demo

create-keystore.txt

keytool -genkey -keystore sslkeystore -keyalg RSA

SSLClient.java

package com.company;

import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import java.io.*;

/**
 * java
 * -Djavax.net.ssl.trustStore=sslkeystore
 * -Djavax.net.ssl.trustStorePassword=123456
 * -Djava.protocol.handler.pkgs=com.sun.net.ssl.internal.www.protocol
 * -Djavax.net.debug=ssl
 * com.company.SSLServer
 */
public class SSLClient {

    public static void main(String[] args) throws IOException {
        SSLSocketFactory sslSocketFactory =
                (SSLSocketFactory) SSLSocketFactory.getDefault();
        SSLSocket sslSocket = (SSLSocket) sslSocketFactory.createSocket("localhost", 9999);

        InputStream inputStream = System.in;
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

        OutputStream outputStream = sslSocket.getOutputStream();
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream);
        BufferedWriter bufferedWriter = new BufferedWriter(outputStreamWriter);

        String line = null;
        while ((line = bufferedReader.readLine()) != null) {
            bufferedWriter.write(line + '\n');
            bufferedWriter.flush();
        }
    }
}

SSLServer.java

package com.company;

import javax.net.ssl.SSLServerSocket;
import javax.net.ssl.SSLServerSocketFactory;
import javax.net.ssl.SSLSocket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * java
 * -Djavax.net.ssl.keyStore=sslkeystore
 * -Djavax.net.ssl.keyStorePassword=123456
 * -Djava.protocol.handler.pkgs=com.sun.net.ssl.internal.www.protocol
 * -Djavax.net.debug=ssl
 * com.company.SSLServer
 */
public class SSLServer {

    public static void main(String[] args) throws IOException {
        SSLServerSocketFactory sslServerSocketFactory =
                (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
        SSLServerSocket sslServerSocket =
                (SSLServerSocket) sslServerSocketFactory.createServerSocket(9999);
        SSLSocket sslSocket = (SSLSocket) sslServerSocket.accept();

        InputStream inputStream = sslSocket.getInputStream();
        InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

        String line = null;
        while ((line = bufferedReader.readLine()) != null) {
            System.out.println(line);
            System.out.flush();
        }
    }
}