Java:文件未打开，出现异常

Question

我通过filenamechooser获取文件名，并将其发送给我想要的处理方法，但问题是它不接受文件名。我使用JPcap打开文件。当我硬编码它时，它会给我完美的结果，但当我发送文件名时，它给了我例外。这是我的代码

         JpcapCaptor captor = JpcapCaptor.openFile("E:\10.pcap");

我拿了这个文件的打印声明，它给了我这个

          System.out.println("E:\10.pcap");

在控制台上我得到这个

E： \10pcap

但是，当我将这个文件名从GUI发送到这个openfile函数时，它会给我这个例外，尽管当我获取这个文件名的打印语句时，它也是相同的E:\10.pcap

      SEVERE: null
     java.io.IOException: E:10.pcap
    : Invalid argument
    at jpcap.JpcapCaptor.openFile(JpcapCaptor.java:93)
    at dpi.Functions.PortBasedAnalysis(Functions.java:52)
    at dpi.GraphicalInterface.jButton1MouseClicked(GraphicalInterface.java:104)
    at dpi.GraphicalInterface.access$000(GraphicalInterface.java:25)
    at dpi.GraphicalInterface$1.mouseClicked(GraphicalInterface.java:49)
    at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
    at java.awt.Component.processMouseEvent(Component.java:6041)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
    at java.awt.Component.processEvent(Component.java:5803)
    at java.awt.Container.processEvent(Container.java:2058)
    at java.awt.Component.dispatchEventImpl(Component.java:4410)
    at java.awt.Container.dispatchEventImpl(Container.java:2116)
    at java.awt.Component.dispatchEvent(Component.java:4240)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3995)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
    at java.awt.Container.dispatchEventImpl(Container.java:2102)
    at java.awt.Window.dispatchEventImpl(Window.java:2429)
    at java.awt.Component.dispatchEvent(Component.java:4240)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at      java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

Answer 1

你确定这个文件真的存在吗？也许你需要先创建它？

尝试

File f = new File("E:\10.pcap");
if(!f.exists()){
  f.createFile(); //or create()  - i forget
}
//then do the pcap shit