Java-JEditorPane-hyperlink问题
我必须基于Java-JEditorPane-hyperlink问题,java,swing,jeditorpane,Java,Swing,Jeditorpane,我必须基于JEditorPane-为学校编写WebBrowser应用程序 我有点麻烦,超链接不起作用 这是我的密码: public class BrowserFrame extends javax.swing.JFrame implements HyperlinkListener { /** Creates new form BrowserFrame */ public BrowserFrame() { initComponents(); }
JEditorPane
-为学校编写WebBrowser应用程序
我有点麻烦,超链接不起作用
这是我的密码:
public class BrowserFrame extends javax.swing.JFrame implements HyperlinkListener {
/** Creates new form BrowserFrame */
public BrowserFrame() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
java.awt.GridBagConstraints gridBagConstraints;
jPanel1 = new javax.swing.JPanel();
btnBack = new javax.swing.JButton();
btnForward = new javax.swing.JButton();
btnRefresh = new javax.swing.JButton();
tfURL = new javax.swing.JTextField();
btnGo = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
epBrowser = new javax.swing.JEditorPane();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Java Browser");
setMinimumSize(new java.awt.Dimension(300, 300));
setName("fMain"); // NOI18N
getContentPane().setLayout(new java.awt.GridBagLayout());
jPanel1.setPreferredSize(new java.awt.Dimension(100, 25));
jPanel1.setLayout(new java.awt.GridBagLayout());
btnBack.setText("<");
jPanel1.add(btnBack, new java.awt.GridBagConstraints());
btnForward.setText(">");
jPanel1.add(btnForward, new java.awt.GridBagConstraints());
btnRefresh.setText("Odśwież");
jPanel1.add(btnRefresh, new java.awt.GridBagConstraints());
tfURL.setText("http://www.google.com");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
gridBagConstraints.weightx = 1.0;
jPanel1.add(tfURL, gridBagConstraints);
btnGo.setText("Idź");
btnGo.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnGoActionPerformed(evt);
}
});
jPanel1.add(btnGo, new java.awt.GridBagConstraints());
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
getContentPane().add(jPanel1, gridBagConstraints);
epBrowser.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
jScrollPane1.setViewportView(epBrowser);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
gridBagConstraints.gridheight = java.awt.GridBagConstraints.REMAINDER;
gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
gridBagConstraints.weightx = 1.0;
gridBagConstraints.weighty = 1.0;
getContentPane().add(jScrollPane1, gridBagConstraints);
jMenu1.setText("Plik");
jMenuBar1.add(jMenu1);
jMenu2.setText("Historia");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
pack();
}// </editor-fold>
private void btnGoActionPerformed(java.awt.event.ActionEvent evt) {
String url;
epBrowser.setContentType("text/html");
try {
url = tfURL.getText();
if (url.startsWith("http://"))
url = url.substring(7);
epBrowser.setPage("http://"+url);
} catch (IOException ex) {
Logger.getLogger(BrowserFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
public void hyperlinkUpdate(HyperlinkEvent event) {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
try {
epBrowser.setPage(event.getURL());
tfURL.setText(event.getURL().toExternalForm());
} catch (IOException ex) {
Logger.getLogger(BrowserFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new BrowserFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btnBack;
private javax.swing.JButton btnForward;
private javax.swing.JButton btnGo;
private javax.swing.JButton btnRefresh;
private javax.swing.JEditorPane epBrowser;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField tfURL;
// End of variables declaration
}
公共类BrowserFrame扩展javax.swing.JFrame实现HyperlinkListener{
/**创建新表单BrowserFrame*/
公共浏览器框架(){
初始化组件();
}
/**此方法从构造函数中调用,以
*初始化表单。
*警告:请勿修改此代码。此方法的内容为
*始终由表单编辑器重新生成。
*/
@抑制警告(“未选中”)
//
私有组件(){
java.awt.GridBagConstraints GridBagConstraints;
jPanel1=newjavax.swing.JPanel();
btnBack=newjavax.swing.JButton();
btnForward=newjavax.swing.JButton();
btnRefresh=newjavax.swing.JButton();
tfURL=newjavax.swing.JTextField();
btnGo=newjavax.swing.JButton();
jScrollPane1=newjavax.swing.JScrollPane();
epBrowser=newjavax.swing.JEditorPane();
jMenuBar1=newjavax.swing.JMenuBar();
jMenu1=newjavax.swing.JMenu();
jMenu2=newjavax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle(“Java浏览器”);
setMinimumSize(新java.awt.Dimension(300300));
setName(“fMain”);//NOI18N
getContentPane().setLayout(新java.awt.GridBagLayout());
setPreferredSize(新的java.awt.Dimension(100,25));
setLayout(新java.awt.gridbagloayout());
btnBack.setText(“”);
add(btnForward,new java.awt.GridBagConstraints());
btnRefresh.setText(“Odśwież”);
add(btnRefresh,new java.awt.GridBagConstraints());
tfURL.setText(“http://www.google.com");
gridBagConstraints=new java.awt.gridBagConstraints();
gridBagConstraints.fill=java.awt.gridBagConstraints.BOTH;
gridBagConstraints.weightx=1.0;
add(tfURL,gridbagstraints);
btnGo.setText(“Idź”);
addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
已执行的BTT(evt);
}
});
add(btnGo,newjava.awt.GridBagConstraints());
gridBagConstraints=new java.awt.gridBagConstraints();
gridBagConstraints.gridwidth=java.awt.gridBagConstraints.rements;
gridBagConstraints.fill=java.awt.gridBagConstraints.HORIZONTAL;
getContentPane().add(jPanel1,gridBagConstraints);
setCursor(新的java.awt.Cursor(java.awt.Cursor.DEFAULT_Cursor));
jScrollPane1.setViewportView(epBrowser);
gridBagConstraints=new java.awt.gridBagConstraints();
gridBagConstraints.gridwidth=java.awt.gridBagConstraints.rements;
gridBagConstraints.gridheight=java.awt.gridBagConstraints.Requirement;
gridBagConstraints.fill=java.awt.gridBagConstraints.BOTH;
gridBagConstraints.weightx=1.0;
gridBagConstraints.weighty=1.0;
getContentPane().add(jScrollPane1,gridBagConstraints);
jMenu1.setText(“Plik”);
jMenuBar1.add(jMenu1);
jMenu2.setText(“历史”);
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
包装();
}//
私有void btnGoActionPerformed(java.awt.event.ActionEvent evt){
字符串url;
setContentType(“text/html”);
试一试{
url=tfURL.getText();
if(url.startsWith(“http:/”)
url=url.substring(7);
setPage(“http://”+url);
}捕获(IOEX异常){
Logger.getLogger(BrowserFrame.class.getName()).log(Level.SEVERE,null,ex);
}
}
公共无效hyperlinkUpdate(HyperlinkEvent事件){
if(event.getEventType()==HyperlinkEvent.EventType.ACTIVATED){
试一试{
setPage(event.getURL());
setText(event.getURL().toExternalForm());
}捕获(IOEX异常){
Logger.getLogger(BrowserFrame.class.getName()).log(Level.SEVERE,null,ex);
}
}
}
公共静态void main(字符串参数[]){
invokeLater(new Runnable()){
公开募捐{
新建BrowserFrame().setVisible(true);
}
});
}
//变量声明-不修改
私有javax.swing.JButton btnBack;
私有javax.swing.JButton btnForward;
私有javax.swing.JButton btnGo;
私有javax.swing.JButton btnRefresh;
私有javax.swing.JEditorPane浏览器;
私有javax.swing.JMenu jMenu1;
私有javax.swing.JMenu jMenu2;
私有javax.swing.JMenuBar jMenuBar1;
私有javax.swing.JPanel jPanel1;
私有javax.swing.JScrollPane-jScrollPane1;
私有javax.swing.JTextField tfURL;
//变量结束声明
}
请参见第2行的更改
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event .*;
import java.io.IOException;
import java.util.logging.*;
public class BrowserFrame extends JFrame implements HyperlinkListener {
/** Creates new form BrowserFrame */
public BrowserFrame() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form. */
private void initComponents() {
GridBagConstraints gridBagConstraints;
jPanel1 = new JPanel();
btnBack = new JButton();
btnForward = new JButton();
btnRefresh = new JButton();
tfURL = new JTextField();
btnGo = new JButton();
jScrollPane1 = new JScrollPane();
epBrowser = new JEditorPane();
// this is the trick!
epBrowser.setEditable(false);
epBrowser.addHyperlinkListener(this);
jMenuBar1 = new JMenuBar();
jMenu1 = new JMenu();
jMenu2 = new JMenu();
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setTitle("Java Browser");
setMinimumSize(new Dimension(300, 300));
setName("fMain"); // NOI18N
getContentPane().setLayout(new GridBagLayout());
jPanel1.setPreferredSize(new Dimension(100, 25));
jPanel1.setLayout(new GridBagLayout());
btnBack.setText("<");
jPanel1.add(btnBack, new GridBagConstraints());
btnForward.setText(">");
jPanel1.add(btnForward, new GridBagConstraints());
btnRefresh.setText("Odswiez");
jPanel1.add(btnRefresh, new GridBagConstraints());
tfURL.setText("http://www.google.com");
gridBagConstraints = new GridBagConstraints();
gridBagConstraints.fill = GridBagConstraints.BOTH;
gridBagConstraints.weightx = 1.0;
jPanel1.add(tfURL, gridBagConstraints);
btnGo.setText("Idz");
btnGo.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
btnGoActionPerformed(evt);
}
});
jPanel1.add(btnGo, new GridBagConstraints());
gridBagConstraints = new GridBagConstraints();
gridBagConstraints.gridwidth = GridBagConstraints.REMAINDER;
gridBagConstraints.fill = GridBagConstraints.HORIZONTAL;
getContentPane().add(jPanel1, gridBagConstraints);
epBrowser.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
jScrollPane1.setViewportView(epBrowser);
gridBagConstraints = new GridBagConstraints();
gridBagConstraints.gridwidth = GridBagConstraints.REMAINDER;
gridBagConstraints.gridheight = GridBagConstraints.REMAINDER;
gridBagConstraints.fill = GridBagConstraints.BOTH;
gridBagConstraints.weightx = 1.0;
gridBagConstraints.weighty = 1.0;
getContentPane().add(jScrollPane1, gridBagConstraints);
jMenu1.setText("Plik");
jMenuBar1.add(jMenu1);
jMenu2.setText("Historia");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
pack();
}// </editor-fold>
private void btnGoActionPerformed(ActionEvent evt) {
String url;
epBrowser.setContentType("text/html");
try {
url = tfURL.getText();
if (url.startsWith("http://"))
url = url.substring(7);
epBrowser.setPage("http://"+url);
} catch (IOException ex) {
Logger.getLogger(BrowserFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
public void hyperlinkUpdate(HyperlinkEvent event) {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
try {
epBrowser.setPage(event.getURL());
tfURL.setText(event.getURL().toExternalForm());
} catch (IOException ex) {
Logger.getLogger(BrowserFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
public void run() {
new BrowserFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private JButton btnBack;
private JButton btnForward;
private JButton btnGo;
private JButton btnRefresh;
private JEditorPane epBrowser;
private JMenu jMenu1;
private JMenu jMenu2;
private JMenuBar jMenuBar1;
private JPanel jPanel1;
private JScrollPane jScrollPane1;
private JTextField tfURL;
// End of variables declaration
}
import java.awt.*;
导入java.awt.event.*;
导入javax.swing.*;
导入javax.swing.event.*;
导入java.io.IOException;
导入java.util.logging.*;
公共类BrowserFrame扩展JFrame实现HyperlinkListener{
/**创建新表单BrowserFrame*/
公共浏览器框架(){
初始化组件();
}
/**此方法从构造函数中调用,以
*初始化表单*/
私有组件(){
gridbag约束gridbag约束;
jPanel1=新的JPanel();
btnBack=新的JButton();
btnForward=newjbutton();
btnRefresh=新的JButton();
tfURL=newjtextfield();
btnGo=新的JButton();
jScrollPane1=新的JScrollPane();
epBrowser=新的JEditorPane();
//这就是诀窍!
epBrowser.setEditable(fa