JSWING小工具

项目中需要一个发送指令到指定服务端，取得设备ID及检测数据的小工具，就利用jswing开发了一个简单小组件，最终效果如下：

JSWING小工具

代码很简单，具体片段如下：

Window.java

import java.awt.Color;

import java.awt.Dimension;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.ScrollPaneConstants;

import javax.swing.SwingConstants;

import javax.swing.WindowConstants;

/**

 * @author

 * @todo 主窗体

 */

@SuppressWarnings("serial")

public class Window extends JFrame {

    public Window() {

        super("工具");

        setSize(500, 300);

        setLocationRelativeTo(null);

        setResizable(false);

        setVisible(true);

        add(new Panels().set());

        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

}

class Panels {

    public JPanel set() {

        // 设置面板

        JPanel panels = new JPanel();// 外层面板

        JPanel panel1 = new JPanel();// 端口指令面板

        JPanel panel2 = new JPanel();// 操作按钮面板

        JPanel panel3 = new JPanel();// 返回结果面板

        // 设置下拉

        // 设置文本

        JLabel label = new JLabel();// 指令

        JLabel label2 = new JLabel();// 结果

        // 端口

        final JComboBox combox = new JComboBox(new Integer[] { 30003, 30005,

                30006, 30008 });

        // 设置指令框

        final JTextField text = new JTextField();

        // 设置文本域

        final JTextArea textarea = new JTextArea();

        // 设置按钮

        JButton button = new JButton("测试");

        JButton button2 = new JButton("清空");

        JScrollPane scrollpane = new JScrollPane(textarea);

        scrollpane.setBorder(javax.swing.BorderFactory

                .createLineBorder(Color.GRAY));//设置边框颜色

        combox.setPreferredSize(new Dimension(80, 20));//设置下拉长宽

        label.setText("指令：");

        text.setColumns(27);

        text.setBorder(javax.swing.BorderFactory.createLineBorder(Color.GRAY));

        textarea.setEditable(false);

        textarea.setRows(9);

        textarea.setColumns(35);

        label2.setText("结果：");

        button.setHorizontalTextPosition(SwingConstants.CENTER);//设置横向位置

        button2.setHorizontalTextPosition(SwingConstants.CENTER);//设置横向位置

        // 设置按钮事件

        button.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent args) {

                String textval = text.getText();

                Integer port = Integer.valueOf(combox.getSelectedItem()

                        .toString());

                if ("".equals(textval.trim())) {

                    Toolkit.getDefaultToolkit().beep();

                    JOptionPane.showMessageDialog(null, "请输入指令！", null,

                            JOptionPane.WARNING_MESSAGE);

                    return;

                }

                textarea.append("请求：" + textval + "\n");

                textarea.append(new Connect().doConnection(port, textval)

                        + "\n");

            }

        });

        button2.addActionListener(new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent args) {

                textarea.setText("");

            }

        });

        // 添加至面板

        panel1.add(label);

        panel1.add(combox);

        panel1.add(text);

        panel2.add(button);

        panel2.add(button2);

        panel3.add(label2);

        scrollpane

                .setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);//设置文本域不显示横向滚动条

        panel3.add(scrollpane);

        panels.add(panel1);

        panels.add(panel2);

        panels.add(panel3);

        return panels;

    }

}

Connect.java

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.ServerSocket;

import java.net.Socket;

import java.net.SocketTimeoutException;

/**

 * @author

 * @todo 发送指令 获取设备信息及数据

 */

public class Connect {

    public String doConnection(int port, String command) {

        String result;

        ServerSocket server = null;

        Socket socket = null;

        try {

            server = new ServerSocket(port);

            server.setSoTimeout(5000);

            socket = server.accept();

            InputStream is = socket.getInputStream();

            OutputStream os = socket.getOutputStream();

            os.write(command.getBytes());

            os.flush();

            byte[] response = getResponse();

            is.read(new byte[1024]);

            String valuestr = new String(response);

            result = "成功：" + valuestr;

        } catch (SocketTimeoutException e) {

            result = "失败：连接超时!";

        } catch (IOException e) {

            result = "失败：读写异常!";

        }

        try {

            if (socket != null) {

                socket.close();

            }

            if (server != null) {

                server.close();

            }

        } catch (IOException e) {

            e.printStackTrace();

        }

        return result;

    }

    public byte[] getResponse() {

        return new byte[1024];

    }

}

Console.java

/**

 * @author

 * @todo 窗体入口

 */

public class Console {

    public static void main(String[] args) {

        javax.swing.SwingUtilities.invokeLater(new Runnable() {

            public void run() {

                new Window();

            }

        });

    }

}

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