用户界面-学生GUI与RMI服务器

Question

我有一个为学生客户端创建RMI服务器的程序，如下所示

名称——地址类组
Tom-----Low Street-----Web 2
玛丽----高街----游戏2
John----Middle Street—Web 2

我有一个使用3个标题的gui，但我想让gui在运行时自动更新，而不是通过单击一个按钮来显示更新的信息，而不是上面显示的信息。

它只是GUI位我卡住了，我无法找到如何在服务器和客户端运行之后使用此信息填充GUI，然后当GUI运行时。

到目前为止，我已经尝试了一些不同的事情，但都没有运气。

这是Gui代码

import java.awt.event.*;
import javax.swing.*;
import java.awt.GridLayout;
public class StudentGui extends JFrame
{
    private JTextField NameLabel= new JTextField("Name");
    private JTextField AddressLabel= new JTextField("Address");
    private JTextField GroupLabel= new JTextField("Group");
    private JTextField FirstName= new JTextField(" ");
    private JTextField SecondName= new JTextField(" ");
    private JTextField ThirdName= new JTextField(" ");
    private JTextField FirstAddress= new JTextField(" ");
    private JTextField SecondAddress= new JTextField(" ");
    private JTextField ThirdAddress= new JTextField(" ");
    private JTextField FirstGroup= new JTextField(" ");
    private JTextField SecondGroup= new JTextField(" ");
    private JTextField ThirdGroup= new JTextField(" ");
    StudentGui(String s){
        super(s);
            getContentPane().setLayout(new GridLayout(4,3));
            getContentPane().add(NameLabel);
            getContentPane().add(AddressLabel);
            getContentPane().add(GroupLabel);
            getContentPane().add(FirstName);
            getContentPane().add(FirstAddress);
            getContentPane().add(FirstGroup);
            getContentPane().add(SecondName);
            getContentPane().add(SecondAddress);
            getContentPane().add(SecondGroup);
            getContentPane().add(ThirdName);
            getContentPane().add(ThirdAddress);
            getContentPane().add(ThirdGroup);
            setSize(350,150);
            setVisible(true);
    }
      public static void main(String[] args){
         new StudentGui("RMI GUI Client");
      }
}

StudentClient代码

import java.rmi.*;
public class StudentClient
{
    public static void main(String args[]){
        String url = "rmi:///";
        try{
            StudentInterface aTom=(StudentInterface)Naming.lookup(url+"Tom");
            StudentInterface aMary=(StudentInterface)Naming.lookup(url+"Mary");
            StudentInterface aJohn=(StudentInterface)Naming.lookup(url+"John");
            System.out.println("Name    Address     Class Group");
            System.out.println(aTom.getName()+" "+aTom.getAddress()+"   "+aTom.getGroup());
            System.out.println(aMary.getName()+"    "+aMary.getAddress()+"  "+aMary.getGroup());
            System.out.println(aJohn.getName()+"    "+aJohn.getAddress()+"  "+aJohn.getGroup());
            System.out.println("n" + "Changed too:" + "n" );
            aTom.setAddress("Lower Street");
            aMary.setAddress("Higher Street");
            aMary.setGroup("Game 3");
            aJohn.setGroup("Web 3");
            System.out.println("Name    Address     Class Group");
            System.out.println(aTom.getName()+" "+aTom.getAddress()+"   "+aTom.getGroup());
            System.out.println(aMary.getName()+"    "+aMary.getAddress()+"  "+aMary.getGroup());
            System.out.println(aJohn.getName()+"    "+aJohn.getAddress()+"  "+aJohn.getGroup());
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }
}

如果您需要代码的其余部分，可以提供。我不希望这是为我做的，只是一个指针，我将如何去填充GUI与这些信息。

提前谢谢你

Answer 1

以防有人做过这样的事情，这就是我最终发现它很容易的方法:)

Java代码:

import java.awt.event.*;
import javax.swing.*;
import java.awt.GridLayout;
import java.rmi.Naming;
public class StudentGui extends JFrame
{
    private JTextField NameLabel= new JTextField("Name");
    private JTextField AddressLabel= new JTextField("Address");
    private JTextField GroupLabel= new JTextField("Group");
    private JTextField FirstName= new JTextField("");
    private JTextField SecondName= new JTextField("");
    private JTextField ThirdName= new JTextField("");
    private JTextField FirstAddress= new JTextField("");
    private JTextField SecondAddress= new JTextField("");
    private JTextField ThirdAddress= new JTextField("");
    private JTextField FirstGroup= new JTextField("");
    private JTextField SecondGroup= new JTextField("");
    private JTextField ThirdGroup= new JTextField("");
    String url = "rmi:///";
    StudentGui(String s){
        super(s);
            getContentPane().setLayout(new GridLayout(4,3));
            getContentPane().add(NameLabel);
            getContentPane().add(AddressLabel);
            getContentPane().add(GroupLabel);
            getContentPane().add(FirstName);
            getContentPane().add(FirstAddress);
            getContentPane().add(FirstGroup);
            getContentPane().add(SecondName);
            getContentPane().add(SecondAddress);
            getContentPane().add(SecondGroup);
            getContentPane().add(ThirdName);
            getContentPane().add(ThirdAddress);
            getContentPane().add(ThirdGroup);
            setSize(350,150);
            setVisible(true);    
            try{
                StudentInterface aTom=(StudentInterface)Naming.lookup(url+"Tom");
                FirstName.setText(aTom.getName());
                FirstAddress.setText(aTom.getAddress());
                FirstGroup.setText(aTom.getGroup());
                StudentInterface aMary=(StudentInterface)Naming.lookup(url+"Mary");
                SecondName.setText(aMary.getName());
                SecondAddress.setText(aMary.getAddress());
                SecondGroup.setText(aMary.getGroup());
                StudentInterface aJohn=(StudentInterface)Naming.lookup(url+"John");
                ThirdName.setText(aJohn.getName());
                ThirdAddress.setText(aJohn.getAddress());
                ThirdGroup.setText(aJohn.getGroup());
            }catch(Exception a){
                a.printStackTrace();
            }
    }
      public static void main(String[] args){
         new StudentGui("RMI GUI Client");
      }
}