我很擅长使用安全连接，而我当前的项目要求我能够安全地将数据从Android手机传递到远程服务器。我的服务器运行ubuntu。我一直在使用this walkthrough
中的代码我做了一些小改动 在服务器代码中，所有信息都是硬编码的 所以
int socket=8080 (not my port number just using as example)
string keystore="path\to\my\keystore\file"
我使用portecle来创建我的ks和bks文件
在客户端我不得不采取主线程的网络，就像这样
InputStream keyin = view.getResources().openRawResource(R.raw.clientkey);
new signinthread(keyin).start();
并创建了一个包含线程和相应构造函数的类。同样，所有信息都是硬编码而不是由用户输入
int port = 8080;
String ip_address = "192.my.server.ip";
因此，当我最终获得代码并运行时没有崩溃错误，只是拒绝服务器连接
connect failed: ECONNREFUSED (Connection refused)failed to connect to
/192.my.server.ip (port 8080): connect failed: ECONNREFUSED (Connection refused)
03-31 01:13:21.272: W/System.err(7028): java.net.ConnectException: failed to connect to /192.my.server.ip (port 8080): connect failed: ECONNREFUSED (Connection refused)
03-31 01:13:21.282: W/System.err(7028): at libcore.io.IoBridge.connect(IoBridge.java:114)
03-31 01:13:21.282: W/System.err(7028): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
03-31 01:13:21.282: W/System.err(7028): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
03-31 01:13:21.282: W/System.err(7028): at java.net.Socket.startupSocket(Socket.java:566)
03-31 01:13:21.282: W/System.err(7028): at java.net.Socket.tryAllAddresses(Socket.java:128)
03-31 01:13:21.282: W/System.err(7028): at java.net.Socket.<init>(Socket.java:178)
03-31 01:13:21.282: W/System.err(7028): at java.net.Socket.<init>(Socket.java:150)
03-31 01:13:21.282: W/System.err(7028): at com.my.project.signinthread.run(signinthread.java:57)
03-31 01:13:21.282: W/System.err(7028): Caused by: libcore.io.ErrnoException: connect failed: ECONNREFUSED (Connection refused)
03-31 01:13:21.282: W/System.err(7028): at libcore.io.Posix.connect(Native Method)
03-31 01:13:21.282: W/System.err(7028): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
03-31 01:13:21.282: W/System.err(7028): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
03-31 01:13:21.282: W/System.err(7028): at libcore.io.IoBridge.connect(IoBridge.java:112)
第57行
socket = (SSLSocket)socketFactory.createSocket(new Socket(ip_address,port), ip_address, port, false);
其他一些信息。
当我使用java knock knock示例时，它在该端口上工作得很好，端口检查器会说端口是打开的。使用此代码，ubuntu表示端口正在侦听，但使用外部端口检查程序，它表示已关闭。
我已经把头撞到了墙上太长时间了，所以现在我问大量的公众堆栈溢出我是什么或出了什么问题。
因为要求
package com.my.project;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import org.apache.http.conn.ssl.SSLSocketFactory;
import android.content.Context;
import android.util.Log;
import android.widget.TextView;
public class signinthread extends Thread
{
Context context;
InputStream keyin;
public signinthread(InputStream frommain)
{
keyin=frommain;
System.out.println("keyin loaded");
}
private TextView mSignInStatus;
private static final String TAG = "SignInActivity";
private BufferedWriter out = null;
private BufferedReader in = null;
int port = 8080;
String ip_address = "192.my.public.ip";
private SSLSocket socket = null;
private char keystorepass[] = "My Password".toCharArray();
private char keypassword[] = "My Password"".toCharArray();
public void run()
{
try
{
KeyStore ks = KeyStore.getInstance("BKS");
//keyin = this.getResources().openRawResource(R.raw.bkskey);
ks.load(keyin,keystorepass);
SSLSocketFactory socketFactory = new SSLSocketFactory(ks);
socketFactory.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
socket = (SSLSocket)socketFactory.createSocket(new Socket(ip_address,port), ip_address, port, false);
socket.startHandshake();
printServerCertificate(socket);
printSocketInfo(socket);
out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String msgToServer="login";
chat(msgToServer);
} catch (UnknownHostException e) {
Log.i(TAG,"Unknown host");
} catch (IOException e) {
Log.i(TAG,"No I/O");
System.out.println(e.getMessage());
e.printStackTrace();
} catch (KeyStoreException e) {
Log.i(TAG,"Keystore ks error");
} catch (NoSuchAlgorithmException e) {
Log.i(TAG,"No such algorithm for ks.load");
e.printStackTrace();
} catch (CertificateException e) {
Log.i(TAG,"certificate missing");
e.printStackTrace();
} catch (UnrecoverableKeyException e) {
Log.i(TAG,"unrecoverableKeyException");
e.printStackTrace();
} catch (KeyManagementException e) {
Log.i(TAG,"key management exception");
e.printStackTrace();
}
}
private void printServerCertificate(SSLSocket socket) {
try
{
java.security.cert.Certificate[] serverCerts = socket.getSession().getPeerCertificates();
for (int i = 0; i < serverCerts.length; i++) {
java.security.cert.Certificate myCert = serverCerts[i];
Log.i(TAG,"====Certificate:" + (i+1) + "====");
Log.i(TAG,"-Public Key-\n" + myCert.getPublicKey());
Log.i(TAG,"-Certificate Type-\n " + myCert.getType());
System.out.println();
}
} catch (SSLPeerUnverifiedException e) {
Log.i(TAG,"Could not verify peer");
e.printStackTrace();
System.exit(-1);
}
}
private void printSocketInfo(SSLSocket s) {
Log.i(TAG,"Socket class: "+s.getClass());
Log.i(TAG," Remote address = "+s.getInetAddress().toString());
Log.i(TAG," Remote port = "+s.getPort());
Log.i(TAG," Local socket address = "+s.getLocalSocketAddress().toString());
Log.i(TAG," Local address = "+s.getLocalAddress().toString());
Log.i(TAG," Local port = "+s.getLocalPort());
Log.i(TAG," Need client authentication = "+s.getNeedClientAuth());
SSLSession ss = s.getSession();
Log.i(TAG," Cipher suite = "+ss.getCipherSuite());
Log.i(TAG," Protocol = "+ss.getProtocol());
}
public void chat(String temp)
{
String message = temp;
String line = "";
// send id of the device to match with the image
try {
out.write(message+"\n");
out.flush();
} catch (IOException e2) {
Log.i(TAG,"Read failed");
System.exit(1);
}
// receive a ready command from the server
try {
line = in.readLine();
mSignInStatus.setText("SERVER SAID: "+line);
System.out.println("from Server:"+line);
//Log.i(TAG,line);
} catch (IOException e1) {
Log.i(TAG,"Read failed");
System.exit(1);
}
}
}