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时,我一直在寻找的年龄,现在试图找出是什么原因造成这样的错误:java.net.ConnectException:连接被拒绝:连接检索文件
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:920)
at org.apache.commons.net.ftp.FTPClient._retrieveFileStream(FTPClient.java:1980)
at org.apache.commons.net.ftp.FTPClient.retrieveFileStream(FTPClient.java:1967)
at me.ItsJasonn.Main.Core.init(Core.java:48)
at me.ItsJasonn.Main.Core$1.run(Core.java:21)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
就约几分钟前,我意识到这有关文件或文件夹的权限(不确定哪一个确切)。
我连接到位于我家的NAS FTP服务器,并使用本地互联网。 这里是我的代码:
package me.ItsJasonn.Main;
import java.awt.EventQueue;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.Socket;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
public class Core {
private static ServerThread serverThread;
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
Core core = new Core();
core.init();
}
});
}
public void init() {
new MainInstance(this);
BufferedReader reader = null;
String ip = null;
Socket socket = null;
try {
FTPClient client = new FTPClient();
try {
client.connect("84.27.126.40", 21);
client.login(Login.USERNAME, Login.PASSWORD);
client.enterLocalPassiveMode();
client.setFileTransferMode(FTP.ASCII_FILE_TYPE);
client.setFileType(FTP.ASCII_FILE_TYPE);
client.changeWorkingDirectory("homes");
client.changeWorkingDirectory("Jason");
System.out.println(client.printWorkingDirectory());
InputStream stream = client.retrieveFileStream("kingkongproperties.txt");
reader = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
ip = reader.readLine();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(reader != null) {
reader.close();
}
if(client.isConnected()) {
try {
client.logout();
client.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
}
socket = new Socket(InetAddress.getByName(ip), 4321);
serverThread = new ServerThread(socket);
Thread start = new Thread(serverThread);
start.start();
} catch (IOException e) {
try {
System.out.println("No server found. Trying again in 2 seconds...");
Thread.sleep(2000);
init();
} catch (InterruptedException e1) {
e1.printStackTrace();
}
}
}
public ServerThread getServerThread() {
return serverThread;
}
}
非常感谢!问题是我使用了外部IP,并且在尝试访问同一互联网连接上的服务器时似乎不起作用 – ItsJasonn