所以我有两个运行良好的项目。但是当我尝试将它们放在一起时，我会立即在底部得到错误。
单独的文件（前两个属于一起）： File1 ：
package pkg2buttongui;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
*
* @author root
*/
public class TestJavaHttpsDecrypt{
private JFrame frame;
private JTextField input;
private JButton startButton;
private JButton stopButton;
public void go(){
final CaptureNetTraffic cnt = new CaptureNetTraffic();
frame = new JFrame("CaptureControl");
frame.setLayout(new GridLayout(3,1));
input = new JTextField("enter NIC");
startButton = new JButton("start");
stopButton = new JButton("stop");
startButton.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
cnt.run(input.getText());
}
}
);
stopButton.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
cnt.stopCap();
}
}
);
frame.add(input);
frame.add(startButton);
frame.add(stopButton);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setBounds(800,500,100,150);
frame.setVisible(true);
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
new TestJavaHttpsDecrypt().go();
}
}
文件2：
package pkg2buttongui;
import javax.swing.SwingWorker;
/**
*
* @author root
*/
public class CaptureNetTraffic extends Thread{
int i = 0;
private String text = null;
SwingWorker<Void, Void> worker = new SwingWorker<Void, Void>() {
@Override
protected Void doInBackground() throws Exception {
while(true){
System.out.println(text);
Thread.sleep(1);
i++;
}
}
};
public void stopCap(){
//Thread.interrupted();
worker.cancel(true);
System.out.println("stopping capture at " + i);
}
public void run(final String var){
text = var;
worker.execute();
}
}
第二个项目：
import java.io.File;
import java.io.FileNotFoundException;
import org.jnetpcap.Pcap;
import org.jnetpcap.PcapDumper;
public class PcapDumperExample {
public static void main(String[] args) throws FileNotFoundException {
StringBuilder errbuf = new StringBuilder(); // For any error msgs
/***************************************************************************
* open up the selected device
**************************************************************************/
int snaplen = 64 * 1024; // Capture all packets, no trucation
int flags = Pcap.MODE_PROMISCUOUS; // capture all packets
int timeout = 10; // 10 seconds in millis
Pcap pcap = Pcap.openLive("eth1", snaplen, flags, timeout, errbuf);
if (pcap == null) {
System.err.printf("Error while opening device for capture: %s\n",
errbuf.toString());
return;
}
/***************************************************************************
* create a PcapDumper and associate it with the pcap capture
***************************************************************************/
String ofile = "mycap.cap";
PcapDumper dumper = pcap.dumpOpen(ofile); // output file
/***************************************************************************
* enter the loop and tell it to capture 10 packets. We pass
* in the dumper created in step 3
**************************************************************************/
pcap.loop(100, dumper);
File file = new File(ofile);
System.out.printf("%s file has %d bytes in it!\n", ofile, file.length());
/***************************************************************************
* Last thing to do is close the dumper and pcap handles
**************************************************************************/
dumper.close();
pcap.close();
}
}
}
现在在这里我试着把它们放在一起，这样我就可以控制捕捉的持续时间。为此，我将 loop.infinite 放在 pcap.loop 而不是 100 中。并将以下文件与 file1 一起使用：
package testjavahttpsdecrypt;
import java.io.File;
import javax.swing.SwingWorker;
import static org.jnetpcap.Pcap.LOOP_INFINITE;
import org.jnetpcap.Pcap;
import org.jnetpcap.PcapDumper;
/**
*
* @author root
*/
public class CaptureNetTraffic extends Thread {
int i = 0;
private String text = null;
Pcap pcap = new Pcap();
PcapDumper dumper = new PcapDumper();
String ofile = "meins.cap";
StringBuilder errbuf = new StringBuilder();
int snaplen = 64 * 1024; // Capture all packets, no trucation
int flags = Pcap.MODE_PROMISCUOUS; // capture all packets
int timeout = 10000; // 10 seconds in millis
SwingWorker<Void, Void> worker = new SwingWorker<Void, Void>() {
@Override
protected Void doInBackground() throws Exception {
while(true){
pcap = Pcap.openLive(text, snaplen, flags, timeout, errbuf);
if (pcap == null) {
System.err.printf("Error while opening device for capture: %s\n",
errbuf.toString());
return null;
}
dumper = pcap.dumpOpen(ofile);
pcap.loop(100, dumper);
}
}
};
public void stopCap(){
File file = new File(ofile);
System.out.printf("%s file has %d bytes in it!\n", ofile, file.length());
dumper.close();
pcap.close();
//Thread.interrupted();
worker.cancel(true);
System.out.println("stopping capture at " + i);
}
public void run(final String var){
text = var;
worker.execute();
}
}
现在当我运行 file1 我得到这个错误：
Exception in thread "main" java.lang.UnsatisfiedLinkError:
com.slytechs.library.NativeLibrary.dlopen(Ljava/lang/String;)J
at com.slytechs.library.NativeLibrary.dlopen(Native Method)
at com.slytechs.library.NativeLibrary.<init>(Unknown Source)
at com.slytechs.library.JNILibrary.<init>(Unknown Source)
at com.slytechs.library.JNILibrary.loadLibrary(Unknown Source)
at com.slytechs.library.JNILibrary.register(Unknown Source)
at com.slytechs.library.JNILibrary.register(Unknown Source)
at com.slytechs.library.JNILibrary.register(Unknown Source)
at org.jnetpcap.Pcap.<clinit>(Unknown Source)
at testjavahttpsdecrypt.CaptureNetTraffic.<init>(CaptureNetTraffic.java:24)
at testjavahttpsdecrypt.TestJavaHttpsDecrypt.go(TestJavaHttpsDecrypt.java:23)
at testjavahttpsdecrypt.TestJavaHttpsDecrypt.main(TestJavaHttpsDecrypt.java:62)
由于第二个项目自己正确运行，我相信我已经正确设置了库（这是来自 stackoverflow 的一篇帖子的提示）我感谢每一个提示/帮助。