java ssl tcp连接正常，但接收到服务器的数据不正确

Question

我的问题是，我在java iso客户端和测试服务器之间有ssl连接。连接正常，握手没有问题，但服务器接收到不正确的数据。

正如我在日志服务器中看到的，在一次读取操作期间只接收部分数据，并且输入流中也存在一些奇怪的数据-可能与证书信息有关。

请注意，如果没有ssl，此客户端和服务器工作时不会出现任何问题。而且，当我用java keyTool简单地创建jks标准证书时，一切都正常，问题也不会发生。

但是，当我使用x509时，无论是通过从cmd生成jks来发送证书作为服务器jvm的参数，还是使用下面的代码在代码中生成jks，都会出现问题。连接和握手始终正常，但inputstream中的数据已中断。

这就是我如何使用boucycastle库获取证书的方法。客户端和服务器几乎相同

private SSLServerSocketFactory handleCertificate() throws KeyManagementException, KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException, UnrecoverableKeyException {
    Security.addProvider(new BouncyCastleProvider());

    PEMReader pr = new PEMReader(new FileReader("p.pem"));
    X509CertificateObject cert = (X509CertificateObject) pr.readObject();

    PEMReader pr2 = new PEMReader(new FileReader("klient.cer"));
    X509CertificateObject cert2 = (X509CertificateObject) pr2.readObject();

    PEMReader kr = new PEMReader(new FileReader("001.key"),
            new PasswordFinder() {
                public char[] getPassword() {
                    return "password".toCharArray();
                }
            });

    KeyStore trustKeys = KeyStore.getInstance("JKS");
    trustKeys.load(null, "".toCharArray());
    trustKeys.setCertificateEntry("1", cert);

    KeyStore ksKeys = KeyStore.getInstance("JKS");
    ksKeys.load(null, "password".toCharArray());
    ksKeys.setCertificateEntry("1", cert2);

    org.bouncycastle.jce.provider.JCERSAPrivateCrtKey key;
    Object PK = kr.readObject();

    if (PK instanceof KeyPair) {
        key = (JCERSAPrivateCrtKey) ((KeyPair) PK).getPrivate();
    } else {
        key = (JCERSAPrivateCrtKey) PK;
    }

    ksKeys.setKeyEntry("1", key, "password".toCharArray(), new Certificate[] { cert2 });

    KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
    kmf.init(ksKeys, "password".toCharArray());

    TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
    tmf.init(trustKeys);

    SSLContext sslContext = SSLContext.getInstance("SSLv3");
    sslContext.init(kmf.getKeyManagers(), tmf.getTrustManagers(), new java.security.SecureRandom());

    SSLServerSocketFactory factory = sslContext.getServerSocketFactory();
    return factory;
}

服务器代码：

    InputStream is = new BufferedInputStream(socket.getInputStream());
        while (!Thread.currentThread().isInterrupted()) {
            int size = 0;
            String mess_length = "";
            byte[] lenbuf = new byte[4];
            if (socket != null && socket.isConnected()) {
                socket.getInputStream().read(lenbuf);
                mess_length = new String(lenbuf);
                log.debug("Lenth of received message: " + mess_length);
            }
            int responseSize = 0;
            try {
                responseSize = Integer.valueOf(mess_length);
                size = responseSize;
            } catch (Exception int_e) {
                log.debug("Error of message lenth numbering: ", int_e);

            }
            byte[] buf = new byte[size];
            if (socket.isConnected() && socket.getInputStream().read(buf) == size) {
                log.debug("Message received.");
            }

            // -----------------------------------------------------------------------------------------------------------
            OutputStream out = new BufferedOutputStream(socket.getOutputStream());
            if ("echo".equals(EnvironmentProperties.getMode())) {
                log.info("responsing in echo mode");
                log.debug("Data to send from server: {} in connection id={}", new String(buf,
                        "UTF-8"), uuid);
                out.write(buf);
            }
            out.flush();
            bytesSet.clear();
            log.info("responded");

来自服务器的日志：

    17:37:26.166 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Mess
    age received.
    17:37:26.166 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onsing in echo mode
    17:37:26.166 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Data
     to send from server:  in connection id=ee7f73ac-6be9-4e7b-876f-35d31845d69e
    17:37:26.166 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onded
    17:37:26.166 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Lent
    h of received message: 200r
    17:37:26.167 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - :
    java.lang.NumberFormatException: For input string: "200r"
            at java.lang.NumberFormatException.forInputString(Unknown Source) ~[na:1
    .8.0_05]
            at java.lang.Integer.parseInt(Unknown Source) ~[na:1.8.0_05]
            at java.lang.Integer.valueOf(Unknown Source) ~[na:1.8.0_05]
            at ru.billing.tcpipServerDummy.app.server.ConnectionCallable.call(Connec
    tionCallable.java:87) [TcpipServerDummy-0.0.1-SNAPSHOT.jar:na]
            at ru.billing.tcpipServerDummy.app.server.ConnectionCallable.call(Connec
    tionCallable.java:1) [TcpipServerDummy-0.0.1-SNAPSHOT.jar:na]
            at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.8.0_05]
            at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na
    :1.8.0_05]
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [n
    a:1.8.0_05]
            at java.lang.Thread.run(Unknown Source) [na:1.8.0_05]
    17:37:26.167 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Mess
    age received.
    17:37:26.167 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onsing in echo mode
    17:37:26.167 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Data
     to send from server:  in connection id=ee7f73ac-6be9-4e7b-876f-35d31845d69e
    17:37:26.168 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onded
    17:37:26.168 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Lent
    h of received message: 4♦А
    17:37:26.168 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - ╬°шс
    ър яЁхюсЁрчютрэш  фышэ√ ёююс∙хэш :
    java.lang.NumberFormatException: For input string: "4♦А "
            at java.lang.NumberFormatException.forInputString(Unknown Source) ~[na:1
    .8.0_05]
            at java.lang.Integer.parseInt(Unknown Source) ~[na:1.8.0_05]
            at java.lang.Integer.valueOf(Unknown Source) ~[na:1.8.0_05]
            at ru.billing.tcpipServerDummy.app.server.ConnectionCallable.call(Connec
    tionCallable.java:87) [TcpipServerDummy-0.0.1-SNAPSHOT.jar:na]
            at ru.billing.tcpipServerDummy.app.server.ConnectionCallable.call(Connec
    tionCallable.java:1) [TcpipServerDummy-0.0.1-SNAPSHOT.jar:na]
            at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.8.0_05]
            at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na
    :1.8.0_05]
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [n
    a:1.8.0_05]
            at java.lang.Thread.run(Unknown Source) [na:1.8.0_05]
    17:37:26.168 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Mess
    age received.
    17:37:26.168 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onsing in echo mode
    17:37:26.168 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Data
     to send from server:  in connection id=ee7f73ac-6be9-4e7b-876f-35d31845d69e
    17:37:26.168 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onded
    17:37:26.168 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Lent
    h of received message: ┴А 2
    17:37:26.169 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - ╬°шс
    ър яЁхюсЁрчютрэш  фышэ√ ёююс∙хэш :
    java.lang.NumberFormatException: For input string: "┴А 2"
            at java.lang.NumberFormatException.forInputString(Unknown Source) ~[na:1
    .8.0_05]
            at java.lang.Integer.parseInt(Unknown Source) ~[na:1.8.0_05]
            at java.lang.Integer.valueOf(Unknown Source) ~[na:1.8.0_05]
            at ru.billing.tcpipServerDummy.app.server.ConnectionCallable.call(Connec
    tionCallable.java:87) [TcpipServerDummy-0.0.1-SNAPSHOT.jar:na]
            at ru.billing.tcpipServerDummy.app.server.ConnectionCallable.call(Connec
    tionCallable.java:1) [TcpipServerDummy-0.0.1-SNAPSHOT.jar:na]
            at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.8.0_05]
            at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na
    :1.8.0_05]
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [n
    a:1.8.0_05]
            at java.lang.Thread.run(Unknown Source) [na:1.8.0_05]
    17:37:26.169 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Mess
    age received.
    17:37:26.169 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onsing in echo mode
    17:37:26.169 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Data
     to send from server:  in connection id=ee7f73ac-6be9-4e7b-876f-35d31845d69e
    17:37:26.169 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onded
    17:37:26.169 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Lent
    h of received message: 1194
    17:37:26.169 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - ╧Ёхю
    сЁрчютрээр  фышээр ёююс∙хэш : 1194
    17:37:26.169 [pool-1-thread-13] INFO  r.b.t.app.server.ConnectionCallable - resp
    onsing in echo mode
    17:37:26.169 [pool-1-thread-13] DEBUG r.b.t.app.server.ConnectionCallable - Data
     to send from server: 6817121021052420000000000000000100000730173724000048001121
    101581111310001749439  749138         00809203123643













                     in connection id=ee7f73ac-6be9-4e7b-876f-35d31845d69e

Answer 1

常见问题。您在某一点忽略了由read（）返回的结果，并假设它填满了长度缓冲区，然后如果下一次读取没有返回准确的字节数，那么您也忽略了实际返回的字节数。您需要将read（）返回的结果存储到变量中，并且：

• 测试它为-1，表示流结束
• 否则继续循环，直到您收到完整的消息，但这是在您的应用程序协议中定义的。

其他问题：

>

插座。isConnected（）此处测试没有意义。如果对等端断开连接，它不会神奇地变成错误。您必须通过从read（）获取-1、从readLine（）、等获取空值来检测。

同上，套接字==null测试。它必须已经是非空的，否则您将在套接字中抛出一个NPE。getOutputStream（）

您每次都在创建一个新的BufferedOutputStream。您应该在套接字的生命周期中使用一个。