Java编写的SNMP 客户端程序，可以通过SNMP获取设备的所有端口信息，选择后进而使用图表显示网络流量情况

/* * Created on 2006-5-30 * * TODO To change the template for this generated file go to * Window - Preferences - Java - Code Style - Code Templates */ package tyut.netcourse.view; import javax.swing.*; import javax.swing.JTextField; import java.awt.FlowLayout; import javax.swing.JLabel; import javax.swing.JButton; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.*; import javax.swing.JComboBox; import tyut.netcourse.Constants; import java.io.IOException; import tyut.netcourse.NetTimer; /** * @author Administrator * * TODO To change the template for this generated type comment go to Window - * Preferences - Java - Code Style - Code Templates */ public class SettingPanel extends JPanel { JLabel jLabel1 = new JLabel(); JTextField hostTxt = new JTextField(); JLabel jLabel2 = new JLabel(); JButton btnChooseIf = new JButton(); JTextField ifTxt = new JTextField(); JTextField commuityTxt = new JTextField(); JButton startBtn = new JButton(); JButton stopBtn = new JButton(); JLabel jLabel3 = new JLabel(); JLabel jLabel4 = new JLabel(); JTextField secTxt = new JTextField(); private static NetTimer task =new NetTimer(); private static NetFlowChartPanel netPanel; public SettingPanel(NetFlowChartPanel netPanel) { try { jbInit(); task.setNetPanel(netPanel); } catch (Exception ex) { ex.printStackTrace(); } } private void jbInit() throws Exception { hostTxt.setMinimumSize(new Dimension(100, 21)); hostTxt.setPreferredSize(new Dimension(100, 21)); hostTxt.setText(""); hostTxt.setBounds(new Rectangle(49, 27, 117, 21)); this.setLayout(null); jLabel1.setText("主机IP"); jLabel1.setBounds(new Rectangle(5, 29, 39, 16)); btnChooseIf.setBounds(new Rectangle(9, 55, 110, 25)); btnChooseIf.setActionCommand("ChooseIf"); btnChooseIf.setText("选择网卡"); btnChooseIf .addActionListener(new SettingPanel_btnChooseIf_actionAdapter( this)); ifTxt.setEnabled(false); ifTxt.setPreferredSize(new Dimension(162, 21)); ifTxt.setText(""); ifTxt.setBounds(new Rectangle(126, 56, 345, 21)); jLabel2.setText("Commuity"); jLabel2.setBounds(new Rectangle(323, 28, 69, 16)); commuityTxt.setMinimumSize(new Dimension(60, 21)); commuityTxt.setPreferredSize(new Dimension(60, 21)); commuityTxt.setText("public"); commuityTxt.setBounds(new Rectangle(395, 26, 75, 21)); startBtn.setBounds(new Rectangle(115, 131, 93, 25)); startBtn.setActionCommand("START"); startBtn.setText("启动"); startBtn.addActionListener(new SettingPanel_startBtn_actionAdapter(this)); stopBtn.setBounds(new Rectangle(284, 132, 96, 25)); stopBtn.setEnabled(false); stopBtn.setActionCommand("STOP"); stopBtn.setText("停止"); stopBtn.addActionListener(new SettingPanel_stopBtn_actionAdapter(this)); jLabel3.setText("时间间隔"); jLabel3.setBounds(new Rectangle(9, 98, 81, 16)); jLabel4.setText("秒钟 "); jLabel4.setBounds(new Rectangle(134, 98, 82, 16)); secTxt.setText("1"); secTxt.setBounds(new Rectangle(66, 97, 62, 21)); this.add(hostTxt); this.add(jLabel1); this.add(btnChooseIf); this.add(ifTxt); this.add(commuityTxt); this.add(jLabel2); this.add(jLabel3); this.add(stopBtn); this.add(startBtn); this.add(secTxt); this.add(jLabel4); } public void btnChooseIf_actionPerformed(ActionEvent e) { if (this.hostTxt.getText().trim().equalsIgnoreCase("") || this.commuityTxt.getText().trim().equalsIgnoreCase("")) { JOptionPane.showMessageDialog(this, "请输入主机信息和通信信息!"); return; } Constants.setHost(this.hostTxt.getText().trim(), this.commuityTxt.getText().trim()); try { String[] links = Constants.getHost().getAvailableLinks(); if(links.length==0) { JOptionPane.showMessageDialog(this, "主机通信失败!请检查输入"); return; } //get interface desc this.ifTxt.setText((String) JOptionPane.showInputDialog(this,"请选择","网卡选择",1,null,links,null) ); Constants.getHost().getDevice().setLinks(ifTxt.getText()); } catch (IOException ex) { JOptionPane.showMessageDialog(this, "主机通信失败!请检查输入"); ex.printStackTrace(); } } public void startBtn_actionPerformed(ActionEvent e) { if (this.hostTxt.getText().trim().equalsIgnoreCase("") || this.commuityTxt.getText().trim().equalsIgnoreCase("")|| this.ifTxt.getText().trim().equalsIgnoreCase("")|| this.secTxt.getText().trim().equalsIgnoreCase("")) { JOptionPane.showMessageDialog(this, "请输入主机信息和通信信息!"); return; } this.stopBtn.setEnabled(true); this.startBtn.setEnabled(false); this.btnChooseIf.setEnabled(false); this.hostTxt.setEnabled(false); this.commuityTxt.setEnabled(false); this.secTxt.setEnabled(false); Integer interval = new Integer(this.secTxt.getText()); if(interval!=null && interval.intValue()>0)task.setInterval(interval); Constants.getChartPanel().ResetAll(); task.start(); } public void stopBtn_actionPerformed(ActionEvent e) { this.startBtn.setEnabled(true); this.stopBtn.setEnabled(false); this.btnChooseIf.setEnabled(true); this.hostTxt.setEnabled(true); this.commuityTxt.setEnabled(true); this.secTxt.setEnabled(true); task.stop(); } } class SettingPanel_stopBtn_actionAdapter implements ActionListener { private SettingPanel adaptee; SettingPanel_stopBtn_actionAdapter(SettingPanel adaptee) { this.adaptee = adaptee; } public void actionPerformed(ActionEvent e) { adaptee.stopBtn_actionPerformed(e); } } class SettingPanel_startBtn_actionAdapter implements ActionListener { private SettingPanel adaptee; SettingPanel_startBtn_actionAdapter(SettingPanel adaptee) { this.adaptee = adaptee; } public void actionPerformed(ActionEvent e) { adaptee.startBtn_actionPerformed(e); } } class SettingPanel_btnChooseIf_actionAdapter implements ActionListener { private SettingPanel adaptee; SettingPanel_btnChooseIf_actionAdapter(SettingPanel adaptee) { this.adaptee = adaptee; } public void actionPerformed(ActionEvent e) { adaptee.btnChooseIf_actionPerformed(e); } }