在我一直在研究的程序中，我需要刷新一个包含新数据的表。目前，由于我是GUI的新手，我打算用新表刷新整个GUI。我的程序执行此操作，但它最终构建在以前的GUI下面。
要继续项目并继续前进，直到我可以重建，我想做两件事之一。使先前的GUI无效并使用新的GUI，或编辑表模型。现在，我使用DefaultTableModel，因为我使用JTable构建。
这三个关键文件AppGUI.java
//compile javac -cp ;./jsoup-1.6.3.jar;commons-logging-1.1.1.jar;commons-httpclient-3.0.1.jar;commons-codec-1.6.jar;httpclient-4.2.jar AppGUI.java
public class AppGUI extends JFrame{
public AppGUI(Company company)throws Exception {
retrieveGUI(company);
}
public void retrieveGUI(Company company){
this.company = company;
incomeStatementPane = new IncomeStatementPane();
balanceSheetPane = new BalanceSheetPane();
cashFlowsPane = new CashFlowsPane();
JTabbedPane leftTabbedPane = new JTabbedPane(); //Left Pane
JComponent panel1 = incomeStatementPane.render(company); //Income Statement
leftTabbedPane.addTab("Income Statement", panel1);
leftTabbedPane.setMnemonicAt(0, KeyEvent.VK_1);
JComponent panel2 = balanceSheetPane.render(company); //Balance Sheet PAnel
leftTabbedPane.addTab("Balance Sheet", panel2);
leftTabbedPane.setMnemonicAt(1, KeyEvent.VK_2);
JComponent panel3 = cashFlowsPane.render(company); //Cash Flows Panel
leftTabbedPane.addTab("Cash Flows", panel3);
leftTabbedPane.setMnemonicAt(2, KeyEvent.VK_3);
JTabbedPane rightTabbedPane = new JTabbedPane(); //Right Pane
JComponent panel4 = LiquidityPane.render(company); //Liquidity
rightTabbedPane.addTab("Liquidity", panel4);
//ratioTabbedPane.setMnemonicAt(3, KeyEvent.VK_4);
JComponent panel5 = ProfitabilityPane.render(company); //Profitability
rightTabbedPane.addTab("Profitability", panel5);
//ratioTabbedPane.setMnemonicAt(4, KeyEvent.VK_5);
JComponent panel6 = LongTermSolvencyPane.render(company); //Long Term Solvency
rightTabbedPane.addTab("Long Term Solvency", panel6);
//ratioTabbedPane.setMnemonicAt(5, KeyEvent.VK_6);
JComponent panel7 = CashFlowAdequacyPane.render(company); //Cash Flow
rightTabbedPane.addTab("Cash Flow", panel7);
add(rightTabbedPane, BorderLayout.CENTER);
add(leftTabbedPane, BorderLayout.WEST);
JPanel bottomPanel = new JPanel();
bottomPanel.setBackground(new Color(150, 150, 150));
JButton computeBtn = new JButton("Compute Ratios");
//ActionListener computeBtnListener = new computeListener(); //computebutonlistener
//computeBtn.addActionListener(computeBtnListener); //actionlistener
//compute()
bottomPanel.add(computeBtn, BorderLayout.EAST);
JPanel tickerPanel = new JPanel();
JLabel tickerLabel = new JLabel("Search Ticker:");
final JTextField tickerField = new JTextField(10);
JButton searchBtn = new JButton("Search");
searchBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e){
final String newTicker = tickerField.getText();
try{
refresh(tickerField.getText());
}
catch(Exception ae){}
}
});
tickerPanel.add(tickerLabel/*, BorderLayout.WEST*/);
tickerPanel.add(tickerField/*, BorderLayout.WEST*/);
tickerPanel.add(searchBtn);
add(tickerPanel, BorderLayout.NORTH);
add(bottomPanel, BorderLayout.SOUTH);
}
public void setCompany(Company company) {
this.company = company;
}
// Enter new symbol.
// compnay
public void refresh(String newTicker)throws IOException{
Company newCompany = new Company(newTicker); // Creates new Company. Updating methods are called from constructor automatically.
//System.out.println(newTicker);
//frame.invalidate();
//frame.validate();
retrieveGUI(newCompany); // Stuff from contstructor.
}
//public void retrieveNewData(String newTicker){
//Company newCompany = new Company(newTicker);
//}
private Company company;//company from ticker JLabel
private IncomeStatementPane incomeStatementPane;
private BalanceSheetPane balanceSheetPane;
private CashFlowsPane cashFlowsPane;
public static void main(String[] args) throws Exception{
Company company = new Company("FTK"); // Creates new Company. Updating methods are called from constructor automatically.
AppGUI frame = new AppGUI(company); // Creates new App GUI. Various panes are initialized from constructor.
frame.retrieveGUI(company);
frame.setTitle("Financial Calculator | Ratios");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setMinimumSize(new Dimension(1000, 500));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
// public compute(){
// refresh();
// render();
// }
}
Company.java
public class Company {
//Variables and Objects
String Ticker;
private Object[][] incomeStatementInfo = new String[52][11];
private Object[][] balanceSheetInfo = new String [46][11];
private Object[][] cashFlowsInfo = new String [22][11];
Company(){}
Company(String newTicker)throws IOException{
this.Ticker = newTicker;
updateCompanyInfo();
}
//Get Methods
public Object[][] getIncomeStatementInfo() {
return incomeStatementInfo;
}
public Object[][] getBalanceSheetInfo(){
return balanceSheetInfo;
}
public Object[][] getCashFlowsInfo(){
return cashFlowsInfo;
}
public void investoolsLogin(){
HttpClient client = new HttpClient();
GetMethod method = new GetMethod("https://online.investools.com/authentication/auth.iedu");
client.getParams().setParameter("userid", "d*********");
client.getParams().setParameter("password", "S****");
client.getParams().setParameter("http.protocol.single-cookie-header", true);
client.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
}
//Updating Methods from Internet or computer
public void updateCompanyIs()throws IOException{
File f = new File ("Data/"+(Ticker)+"/IS.txt");
if(f.exists() == true){
Scanner input = new Scanner(f);
while (input.hasNextLine()){
for (int row = 0, row_size = incomeStatementInfo[row].length; row < row_size; row++){
for (int col = 0, col_size = incomeStatementInfo.length; col < col_size; col++){
if(input.hasNextLine()){
incomeStatementInfo[col][row] = input.nextLine();
}
}
}
}
}
if(f.exists() == false){
//OptionPane.showMessageDialog("Offline Ticker Data Does Not Exist");
investoolsLogin();
Document doc = Jsoup.connect("http://toolbox.investools.com/graphs/fundamentalAnalysis.iedu?report=BS&symbol="+(Ticker)).get();
System.out.println("doc is null: " + (doc == null));
// Elements table = doc.select("table");
Elements columns = doc.getElementById("fundamentalsForm").children().select("table").get(0).select("tr").get(0).select("td");
Iterator<Element> columnIterator = columns.iterator();
int col = 0;
int row = 0;
while (columnIterator.hasNext()) {
Element column = columnIterator.next();
Elements rows = column.select("table").get(0).select("tr");
Iterator<Element> rowsIterator = rows.iterator();
col = col + 1;
while (rowsIterator.hasNext()){
row = row + 1;
//Element rowIterator.next = ;
incomeStatementInfo[col][row] = rowsIterator.next();
}
}
}
}
public void updateCompanyBs()throws IOException{
File f = new File ("Data/"+(Ticker)+"/BS.txt");
if(f.exists() == true){
//OptionPane.showMessageDialog("Offline Ticker Data Does Not Exist");
Scanner input = new Scanner(f);
while (input.hasNextLine()){
for (int row = 0, row_size = balanceSheetInfo[row].length; row < row_size; row++){
for (int col = 0, col_size = balanceSheetInfo.length; col < col_size; col++){
if(input.hasNextLine()){
balanceSheetInfo[col][row] = input.nextLine();
}
}
}
}
}
if(f.exists() == false){
investoolsLogin();
Document doc = Jsoup.connect("http://toolbox.investools.com/graphs/fundamentalAnalysis.iedu?report=BS&symbol="+(Ticker)).get();
// Elements table = doc.select("table");
Elements columns = doc.select("fundamentalsForm").first().select("table").get(0).select("tr").get(0).select("td");
Iterator<Element> columnIterator = columns.iterator();
int col = 0;
int row = 0;
while (columnIterator.hasNext()) {
Element column = columnIterator.next();
Elements rows = column.select("table").get(0).select("tr");
Iterator<Element> rowsIterator = rows.iterator();
col = col + 1;
while (rowsIterator.hasNext()){
row = row + 1;
//Element rowIterator.next = ;
balanceSheetInfo[col][row] = rowsIterator.next();
}
}
}
}
public void updateCompanyCf()throws IOException{
File f = new File ("Data/"+(Ticker)+"/CF.txt");
if(f.exists() == true){
//OptionPane.showMessageDialog("Offline Ticker Data Does Not Exist");
Scanner input = new Scanner(f);
while (input.hasNextLine()){
for (int row = 0, row_size = cashFlowsInfo[row].length; row < row_size; row++){
for (int col = 0, col_size = cashFlowsInfo.length; col < col_size; col++){
if(input.hasNextLine()){
cashFlowsInfo[col][row] = input.nextLine();
}
}
}
}
}
if(f.exists() == false){
investoolsLogin();
Document doc = Jsoup.connect("http://toolbox.investools.com/graphs/fundamentalAnalysis.iedu?report=BS&symbol="+(Ticker)).get();
// Elements table = doc.select("table");
Elements columns = doc.getElementById("fundamentalsForm").children().select("table").get(0).select("tr").get(0).select("td");
Iterator<Element> columnIterator = columns.iterator();
int col = 0;
int row = 0;
while (columnIterator.hasNext()) {
Element column = columnIterator.next();
Elements rows = column.select("table").get(0).select("tr");
Iterator<Element> rowsIterator = rows.iterator();
col = col + 1;
while (rowsIterator.hasNext()){
row = row + 1;
//Element rowIterator.next = ;
cashFlowsInfo[col][row] = rowsIterator.next();
}
}
}
}
public void updateCompanyInfo() throws IOException {
updateCompanyIs();
updateCompanyBs();
updateCompanyCf();
}
}
和IncomeStatePane.java（以及我构建tablemodel的类似其他对象类
public class IncomeStatementPane {
public static JComponent render(Company company) {
// Refreshes all cells
//Parse HTML for object company
String[] columnNames = {"","Year","Year", "Year", "Year", "Year","Year","Year", "Year", "Year", "Year"};
Object[][] is = company.getIncomeStatementInfo();
JPanel isPanel = new JPanel();
JTable isTable = new JTable(is, columnNames);
JScrollPane scrollPane = new JScrollPane(isTable);
isPanel.add(scrollPane, BorderLayout.CENTER);
return isPanel;
}
}
完全可编辑的版本是@ http://dl.dropbox.com/u/43354605/IS.zip
如何在执行股票代码搜索时让AppGUI无效并重新绘制或更新表格模型。 （我知道GUI刷新可能并不理想，但我只想继续进行最小的版本重建）。如果有任何人有任何洞察力帮助我推动项目，这将是伟大的。 PS为了看看如何在之前的gui下刷新第二个gui你需要最大化窗口。
答案 0 :(得分：2)
您需要做的就是修改表格的模型。它将触发相应的事件，使视图自行刷新。例如，要添加新行：
DefaultTableMode model = (DefaultTableModel) table.getModel();
model.addRow(newRow);
浏览javadoc of DefaultTableModel以了解所有可能的操作。并阅读tutorial about JTable。