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用Java Swing编写简单的测试小工具界面（源码）
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前段时间我负责在系统中添加了HBase用于管理海量数据，功能实现后自然到了性能测试阶段，性能、可靠性、稳定性，性性都不能少。 因此就有了个内部的小需求：“给测试部提供一个工具，可以向HBase写入数据，以达到测试所需的数据量”。 由于我们的系统是由Java编写，Client的代码也用的Hadoop的Java API，因此小工具的界面编写理所应当的选择了Java Swing。 之前没有用过Swing，本次完全是在网上一边翻博一边编码。 首先是成品图：
OK，我知道很丑，咱不就图个实用么…… 这里可以输入Hadoop集群的IP，可以选择需要操作的表，可以清空表中的记录，还有写入耗时统计。 下面是代码，代码分为两个文件，一个是MainView负责界面展示；另一个是Worker线程，负责干活和刷新进度条与显示数据。 MainView代码： package com.codeevoship.gui; import java.awt.Container; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JProgressBar; import javax.swing.JRadioButton; import javax.swing.JTextField; @SuppressWarnings("serial") publicclass MainWindow extends JFrame { private JLabel welcomeLbl; private JLabel ipLbl; private JTextField ipTxt; private JLabel numLbl; private JTextField numTxt; private JProgressBar probar; private JTextField txtResultShow; private JRadioButton archiveSel; private JRadioButton contentSel; private JRadioButton systemLogSel; private JRadioButton clearDataSel; private JButton startBtn; private JButton exitBtn; private Thread thdWorker; public MainWindow() { // 获取本JFrame的ContentPane Container contentPane = getContentPane(); GridBagLayout gridbag = new GridBagLayout(); contentPane.setLayout(gridbag); GridBagConstraints c = new GridBagConstraints(); // Title welcomeLbl = new JLabel("CodeEvoShip HBase 数据填充工具"); welcomeLbl.setFont(new Font("Serif",Font.BOLD,20)); c = getGridBagConstraints(0, 0, 0, 1, 0, 0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(10, 0, 0, 0), 10, 0); gridbag.setConstraints(welcomeLbl, c); contentPane.add(welcomeLbl); // IP ipLbl = new JLabel("Cluster IP:"); c = getGridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(10, 0, 10, 0), 10, 0); gridbag.setConstraints(ipLbl, c); contentPane.add(ipLbl); ipTxt = new JTextField("127.0.0.1;127.0.0.2;127.0.0.3"); c = getGridBagConstraints(1, 1, 0, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(10, 0, 10, 0), 85, 0); gridbag.setConstraints(ipTxt, c); contentPane.add(ipTxt); // 数量填写 numLbl = new JLabel("Write Number:"); c = getGridBagConstraints(0, 2, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(10, 0, 10, 0), 10, 0); gridbag.setConstraints(numLbl, c); contentPane.add(numLbl); numTxt = new JTextField("10000"); c = getGridBagConstraints(1, 2, 0, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(10, 0, 10, 0), 230, 0); gridbag.setConstraints(numTxt, c); contentPane.add(numTxt); // 多选框 archiveSel = new JRadioButton("Archive Table"); c = getGridBagConstraints(0, 3, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0); gridbag.setConstraints(archiveSel, c); contentPane.add(archiveSel); contentSel = new JRadioButton("Content Table"); c = getGridBagConstraints(1, 3, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0); gridbag.setConstraints(contentSel, c); contentPane.add(contentSel); systemLogSel = new JRadioButton("SystemLog Table"); c = getGridBagConstraints(2, 3, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 5, 0), 0, 0); gridbag.setConstraints(systemLogSel, c); contentPane.add(systemLogSel); clearDataSel = new JRadioButton("Clear old data of selected Tables!!"); c = getGridBagConstraints(0, 4, 0, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 15, 0), 0, 0); gridbag.setConstraints(clearDataSel, c); contentPane.add(clearDataSel); // 进度条 probar = new JProgressBar(0, 100); probar.setStringPainted(true); c = getGridBagConstraints(0, 6, 0, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 250, 0); gridbag.setConstraints(probar, c); contentPane.add(probar); txtResultShow = new JTextField("Not Begin"); txtResultShow.setEditable(false); txtResultShow.setHorizontalAlignment(JTextField.CENTER); c = getGridBagConstraints(0, 7, 0, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 5, 0), 325, 0); gridbag.setConstraints(txtResultShow, c); contentPane.add(txtResultShow); //执行与退出 startBtn = new JButton("Start"); c = getGridBagConstraints(0, 5, 0, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(0, 0, 5, 0), 50, 0); gridbag.setConstraints(startBtn, c); startBtn.addActionListener(new ActionListener() { publicvoid actionPerformed(ActionEvent arg0) { if (!paraPassCheck()) { return; } if (null != thdWorker && thdWorker.isAlive()) { JOptionPane.showMessageDialog(null,"There already is a task running now， please wait"); return; } DoWork doWork = new DoWork(ipTxt.getText(),Long.parseLong(numTxt.getText()), contentSel.isSelected(),archiveSel.isSelected(), systemLogSel.isSelected(),clearDataSel.isSelected(), probar, txtResultShow); thdWorker = new Thread(doWork); thdWorker.start(); } }); contentPane.add(startBtn); exitBtn = new JButton("Exit"); c = getGridBagConstraints(1, 5, 0, 1, 0, 0, GridBagConstraints.EAST, GridBagConstraints.NONE, new Insets(0, 0, 5, 0), 50, 0); gridbag.setConstraints(exitBtn, c); exitBtn.addActionListener(new ActionListener() { publicvoid actionPerformed(ActionEvent arg0) { System.exit(0); } }); contentPane.add(exitBtn); } privateboolean paraPassCheck() { try { Long.parseLong(numTxt.getText()); returntrue; } catch (Exception e) { JOptionPane.showMessageDialog(null,"Invalid number "); returnfalse; } } privatestatic GridBagConstraints getGridBagConstraints(int gridx, int gridy, int gridwidth, int gridheight, double weightx, double weighty, int anchor, int fill, Insets insets, int ipadx, int ipady) { returnnew GridBagConstraints(gridx, gridy, gridwidth, gridheight, weightx, weighty, anchor, fill, insets, ipadx, ipady); } publicstaticvoid main(String args[]) { MainWindow mainWindow = new MainWindow(); mainWindow.setTitle("CodeEvoShip"); mainWindow.pack(); mainWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainWindow.setVisible(true); } }Worker代码： package com.codeevoship.gui; import javax.swing.JProgressBar; import javax.swing.JTextField; publicclass DoWork implements Runnable { JProgressBar probar; JTextField curTxtShow; long totalNum = 0; long curNum = 0; long startTime = 0; long curTime = 0; public DoWork(String ip, long num, boolean isWriteCon, boolean isWriteArc, boolean isWriteSys, boolean isClearData, JProgressBar probar, JTextField curTxtShow) { System.out.println("IP:" + ip + ", Num:" + num); System.out.println("Write Content[" + isWriteCon + "], Write Archive[" + isWriteArc + "], Write SystemLog[" + isWriteSys + "]."); startTime = 0; curNum = 0; totalNum = num; this.probar = probar; this.curTxtShow = curTxtShow; } @Override publicvoid run() { startTime = System.currentTimeMillis(); // 开始工作 System.out.println("Do Work Start!"); StringBuilder sb = new StringBuilder(); while (true) { if (curNum >= totalNum) { break; } try { // TODO: Real work here Thread.sleep(10); // 更新界面显示 curNum += 1; probar.setValue((int) (curNum*100/totalNum)); curTime = System.currentTimeMillis(); sb.setLength(0); sb.append(curNum); sb.append('/'); sb.append(totalNum); sb.append(" cost time: "); sb.append((curTime - startTime)/1000); sb.append('s'); curTxtShow.setText(sb.toString()); } catch (Exception e) { e.printStackTrace(); } } System.out.println("Do Work End!"); } }大家如需要可随意使用，改成自己的小工具，只要把Worker中的// TODO: 改为实际运行的程序即可。 
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