用java设计通讯录保存信息 设计要求：1.通讯录中包括一般通讯录的基本信息2.需要实现普通的检索功能3.通讯录写入文件4.程序执行时，从文件导入数据：退出后将输入保存到文件5.拥有可视化界面

好的，以下是一个简单的用Java设计通讯录保存信息的示例：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.util.*;

public class ContactList extends JFrame implements ActionListener {

    private JTextField nameField, phoneField, searchField;
    private JTextArea displayArea;
    private JButton addButton, searchButton, saveButton, loadButton;

    private ArrayList<Contact> contacts;

    public ContactList() {
        super("Contact List");

        contacts = new ArrayList<Contact>();

        // 设置界面布局
        JPanel inputPanel = new JPanel(new GridLayout(3, 2));
        inputPanel.add(new JLabel("Name:"));
        nameField = new JTextField();
        inputPanel.add(nameField);
        inputPanel.add(new JLabel("Phone:"));
        phoneField = new JTextField();
        inputPanel.add(phoneField);
        addButton = new JButton("Add");
        addButton.addActionListener(this);
        inputPanel.add(addButton);
        inputPanel.add(new JLabel(""));

        JPanel searchPanel = new JPanel(new FlowLayout());
        searchField = new JTextField(20);
        searchPanel.add(searchField);
        searchButton = new JButton("Search");
        searchButton.addActionListener(this);
        searchPanel.add(searchButton);

        JPanel displayPanel = new JPanel(new BorderLayout());
        displayArea = new JTextArea(15, 30);
        displayArea.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(displayArea);
        displayPanel.add(scrollPane, BorderLayout.CENTER);

        JPanel filePanel = new JPanel(new FlowLayout());
        saveButton = new JButton("Save");
        saveButton.addActionListener(this);
        filePanel.add(saveButton);
        loadButton = new JButton("Load");
        loadButton.addActionListener(this);
        filePanel.add(loadButton);

        JPanel mainPanel = new JPanel(new BorderLayout());
        mainPanel.add(inputPanel, BorderLayout.NORTH);
        mainPanel.add(searchPanel, BorderLayout.CENTER);
        mainPanel.add(displayPanel, BorderLayout.SOUTH);
        mainPanel.add(filePanel, BorderLayout.EAST);

        add(mainPanel);
        pack();
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == addButton) {
            String name = nameField.getText();
            String phone = phoneField.getText();
            Contact c = new Contact(name, phone);
            contacts.add(c);
            displayContacts();
        } else if (e.getSource() == searchButton) {
            String query = searchField.getText();
            ArrayList<Contact> results = searchContacts(query);
            displayContacts(results);
        } else if (e.getSource() == saveButton) {
            saveContacts();
        } else if (e.getSource() == loadButton) {
            loadContacts();
            displayContacts();
        }
    }

    private void displayContacts() {
        displayArea.setText("");
        for (Contact c : contacts) {
            displayArea.append(c.getName() + " " + c.getPhone() + "\n");
        }
    }

    private void displayContacts(ArrayList<Contact> list) {
        displayArea.setText("");
        for (Contact c : list) {
            displayArea.append(c.getName() + " " + c.getPhone() + "\n");
        }
    }

    private ArrayList<Contact> searchContacts(String query) {
        ArrayList<Contact> results = new ArrayList<Contact>();
        for (Contact c : contacts) {
            if (c.getName().contains(query) || c.getPhone().contains(query)) {
                results.add(c);
            }
        }
        return results;
    }

    private void saveContacts() {
        try {
            ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("contacts.dat"));
            out.writeObject(contacts);
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void loadContacts() {
        try {
            ObjectInputStream in = new ObjectInputStream(new FileInputStream("contacts.dat"));
            contacts = (ArrayList<Contact>)in.readObject();
            in.close();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        new ContactList();
    }
}

class Contact implements Serializable {
    private String name;
    private String phone;

    public Contact(String name, String phone) {
        this.name = name;
        this.phone = phone;
    }

    public String getName() {
        return name;
    }

    public String getPhone() {
        return phone;
    }
}

这个程序使用了Swing库实现了一个简单的GUI界面，包括输入框、按钮、文本区域等。通讯录数据以一个包含联系人姓名和电话号码的Contact类的形式保存，使用ArrayList来管理多个联系人。程序实现了添加联系人、搜索联系人、保存联系人、载入联系人等功能，并将数据以序列化的形式保存到文件中。