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标签 java sockets ssl networking
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我一直在尝试将使用套接字在 Java 中创建的客户端/服务器模型转换为 SSL。在生成包含服务器根文件和中间文件的 PKCS12 文件后，我使用 System.setProperty 将客户端和服务器文件中的信任和 keystore 更改为 PKCS 文件。我不太确定这是否是您的本意。我还对套接字进行了更改，使用 SSLSocketFactory 创建必要的套接字。
这是下面的代码。 客户:
`public class Client
{
private SSLSocket client_socket;
private DataOutputStream output_stream;
private FileReader reader;
private BufferedReader buffer_reader;
public Client(String address, int port)
{
System.setProperty("javax.net.ssl.keyStore", "wa.p12");
System.setProperty("javax.net.ssl.keyStorePassword", "namihana");
System.setProperty("javax.net.ssl.keyStoreType", "PKCS12");
System.setProperty("javax.net.ssl.trustStore", "wa.p12");
System.setProperty("javax.net.ssl.trustStorePassword", "namihana");
System.setProperty("javax.net.ssl.TrustStoreType", "PKCS12");
// System.setProperty("javax.net.ssl.trustStoreType", "PKCS12");
Security.addProvider(new Provider());
try
{
SSLSocketFactory ssf = (SSLSocketFactory) SSLSocketFactory.getDefault();
client_socket = (SSLSocket) ssf.createSocket("127.0.0.1", 8072);
client_socket.startHandshake();
public class Server
{
public Socket socket_2;
public SSLServerSocket server_socket;
public InputStreamReader input_stream;
private BufferedReader buffer_reader;
private DataOutputStream output_sender;
private PrintWriter output_writer;
private boolean result;
private char[] multichoice_answers;
服务器:
public Server(int port)
{
System.setProperty("javax.net.ssl.keyStore", "wa.p12");
System.setProperty("javax.net.ssl.keyStorePassword", "namihana");
System.setProperty("javax.net.ssl.keyStoreType", "PKCS12");
System.setProperty("javax.net.ssl.trustStore", "wa.p12");
System.setProperty("javax.net.ssl.trustStorePassword", "namihana");
System.setProperty("javax.net.ssl.TrustStoreType", "PKCS12");
multichoice_answers = new char[30];
multichoice_answers[0] = 'A';
multichoice_answers[1] = 'A';
multichoice_answers[2] = 'D';
multichoice_answers[3] = 'C';
multichoice_answers[4] = 'C';
multichoice_answers[5] = 'C';
multichoice_answers[6] = 'D';
multichoice_answers[7] = 'B';
multichoice_answers[8] = 'D';
multichoice_answers[9] = 'B';
multichoice_answers[10] = 'C';
multichoice_answers[11] = 'D';
multichoice_answers[12] = 'A';
multichoice_answers[13] = 'D';
multichoice_answers[14] = 'C';
try
{
SSLServerSocketFactory ssf = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
SSLServerSocket server_socket = (SSLServerSocket) ssf.createServerSocket(port);
System.out.println("Server_socket made");
Security.addProvider(new Provider());
//server_socket.setSoTimeout(100000);
}
catch(Exception e)
{
e.printStackTrace();
}
}
public void receive()
{
try
{
System.out.println("Server connected2");
socket_2 = server_socket.accept();
最佳答案
您的 try block 中有一个本地 ServerSocket 变量正在隐藏类成员。
关于java - ServerSocket 在转换为 SSLSocket 时不接受(空指针异常)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50472933/