transactioncommand.java

FTP客户端 实现了客户端与FTP服务器的连接。可以上传

package cmd;

import java.util.Vector;

public class TransactionCommand
    implements Command {
  private CommandReceiver commandreceiver;
  private Vector commandnamelist, commandargumentlist;
  private String commandname;
  private CommandArgument commandargument;
  private Command command;
  public TransactionCommand() {
    this(null, null);
  }

  public TransactionCommand(Vector commandnamelist, Vector
                            commandargumentlist) {
    this.commandnamelist = commandnamelist;
    this.commandargumentlist = commandargumentlist;
    commandreceiver = CommandReceiver.getHandle();
  }

  public void execute() {
    for (int i = 0; i < commandnamelist.size(); i++) {
      commandname = (String) (commandnamelist.get(i));
      commandargument = (CommandArgument) ( (commandargumentlist.get(i)));
      commandreceiver.setCommandArgument(commandargument);
      String classname = "cmd."+commandname + "Command";
      try {
        Class cls = Class.forName(classname);
        command = (Command) cls.newInstance();
      }
      catch (Throwable e) {
        System.err.println(e);
      }
      command.execute();
    }
  }
}