源代码下载地址:http://www.zuidaima.com/share/1550463483628544.htm
java swing开发最简单的浏览器,已测试....
package com.zuidaima; import org.eclipse.swt.SWT; import org.eclipse.swt.browser.Browser; import org.eclipse.swt.browser.CloseWindowListener; import org.eclipse.swt.browser.LocationAdapter; import org.eclipse.swt.browser.LocationEvent; import org.eclipse.swt.browser.OpenWindowListener; import org.eclipse.swt.browser.ProgressAdapter; import org.eclipse.swt.browser.ProgressEvent; import org.eclipse.swt.browser.StatusTextEvent; import org.eclipse.swt.browser.StatusTextListener; import org.eclipse.swt.browser.TitleEvent; import org.eclipse.swt.browser.TitleListener; import org.eclipse.swt.browser.WindowEvent; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.events.MouseAdapter; import org.eclipse.swt.events.MouseEvent; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.MenuItem; import org.eclipse.swt.widgets.ProgressBar; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.TabFolder; import org.eclipse.swt.widgets.TabItem; /** * 挺好使的..... * @author www.zuidaima.com * */ public class Liulanqi {//基于标签式的浏览器 private volatile String newUrl = null;// 最新输入的链接 private volatile boolean loadCompleted = false;//表示当前页面完全导入 private volatile boolean openNewItem=false;//表示新的页面在新窗口中打开 /* * 浏览器的当前标签参数 */ private TabItem tabItem_now;//当前标签项 private Browser browser_now;//当前功能浏览器 /* * 浏览器设置参数 */ private String homePage = "www.baidu.com";// 浏览器的首页 /* * 浏览器外形布置 */ private Button button_back;//后退按钮 private Button button_forward;//向前按钮 private Button button_go;//前进按钮 private Button button_stop;//停止按钮 private Combo combo_address;// 地址栏 private Browser browser_default = null;// 浏览窗口 private ProgressBar progressBar_status;// 网页打开进度表,即页面导入情况栏 private Label label_status;// 最终网页打开过程显示 private TabFolder tabFolder;// Browser的容器 private Composite composite_tool;// 工具栏区域 private Composite composite_browser;// 浏览窗口区域 private Composite composite_status;// 状态栏区域 protected Display display; protected Shell shell_default; /** * Launch the application * * @param args */ public static void main(String[] args) { try { Liulanqi window = new Liulanqi(); window.open(); } catch (Exception e) { e.printStackTrace(); } } /** * Open the window */ public void open() { display = Display.getDefault(); shell_default = new Shell(display); createContents(); shell_default.open(); shell_default.layout(); while (!shell_default.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } } /** * Create contents of the window */ protected void createContents() { shell_default.setSize(649, 448); shell_default.setText("浏览器"); GridLayout gl_shell = new GridLayout(); gl_shell.marginWidth = 0;// 组件与容器边缘的水平距离 gl_shell.marginHeight = 0;// 组件与容器边缘的垂直距离 gl_shell.horizontalSpacing = 0;// 组件之间的水平距离 gl_shell.verticalSpacing = 0;// 组件之间的垂直距离 shell_default.setLayout(gl_shell); /* * 创建浏览器界面 */ //createMenu();//没有实现 createTool(); createBrowser(); createStatus(); /* * 创建浏览器相关事件监听 */ runThread(); } /* * 创建基本工具栏,不包括相关事件监听 */ private void createTool() { composite_tool = new Composite(shell_default, SWT.BORDER); // GridData()第一个参数是水平排列方式,第二个参数是垂直排列方式,第三个是水平抢占是否,第四个参数是垂直抢占是否 GridData gd_composite = new GridData(SWT.FILL, SWT.CENTER, true, false); gd_composite.heightHint = 30;// 高度和宽度 gd_composite.widthHint = 549; composite_tool.setLayoutData(gd_composite); GridLayout fl_composite = new GridLayout(); fl_composite.numColumns = 8; composite_tool.setLayout(fl_composite); button_back = new Button(composite_tool, SWT.NONE); button_back.setLayoutData(new GridData(27, SWT.DEFAULT));// 设置大小和格式 button_back.setText("<-"); button_forward = new Button(composite_tool, SWT.NONE); button_forward.setLayoutData(new GridData(24, SWT.DEFAULT)); button_forward.setText("->"); combo_address = new Combo(composite_tool, SWT.BORDER); final GridData gd_combo_3 = new GridData(SWT.FILL, SWT.LEFT, true, false);// 在窗口变化时,自动扩展水平方向的大小 gd_combo_3.widthHint = 300;// 起始宽度 gd_combo_3.minimumWidth = 50;// 设置最小宽度 combo_address.setLayoutData(gd_combo_3); button_go = new Button(composite_tool, SWT.NONE); button_go.setLayoutData(new GridData(25, SWT.DEFAULT)); button_go.setText("go"); button_stop = new Button(composite_tool, SWT.NONE); button_stop.setLayoutData(new GridData(24, SWT.DEFAULT)); button_stop.setText("stop"); final Label label = new Label(composite_tool, SWT.SEPARATOR | SWT.VERTICAL); label.setLayoutData(new GridData(2, 17)); } /* * 创建浏览器,不包括相关事件监听 */ private void createBrowser() { composite_browser = new Composite(shell_default, SWT.NONE); final GridData gd_composite = new GridData(SWT.FILL, SWT.FILL, true, true);// 充满窗口,且水平和垂直方向随窗口而变 gd_composite.heightHint = 273; composite_browser.setLayoutData(gd_composite); GridLayout gl_composite = new GridLayout(); gl_composite.marginHeight = 0;// 使组件上下方向容器 gl_composite.marginWidth = 0;// 使组件左右方向占满容器 composite_browser.setLayout(gl_composite); tabFolder = new TabFolder(composite_browser, SWT.NONE); final GridData gd_tabFolder = new GridData(SWT.FILL, SWT.FILL, true, true); gd_tabFolder.heightHint = 312; gd_tabFolder.widthHint = 585; tabFolder.setLayoutData(gd_tabFolder); /* * 为标签添加右键功能 */ tabFolder.addMouseListener(new MouseAdapter(){ @Override public void mouseUp(MouseEvent e) { if(e.button==3){//右键 Menu menu_itemRightMouse=new Menu(shell_default,SWT.POP_UP); tabFolder.setMenu(menu_itemRightMouse); MenuItem menuItem_itemClose=new MenuItem(menu_itemRightMouse,SWT.NONE); menuItem_itemClose.setText("关闭当前标签"); menuItem_itemClose.addSelectionListener(new SelectionAdapter(){ @Override public void widgetSelected(SelectionEvent e) { if(tabFolder.getItemCount()!=1){//不是只存在一个标签的情况下 browser_now.dispose(); tabItem_now.dispose(); tabFolder.redraw(); }else{//只有一个标签 browser_now.setUrl(":blank"); browser_now.setText(""); } } }); MenuItem menuItem_itemCloseAll=new MenuItem(menu_itemRightMouse,SWT.NONE); menuItem_itemCloseAll.setText("关闭所有标签"); menuItem_itemCloseAll.addSelectionListener(new SelectionAdapter(){ @Override public void widgetSelected(SelectionEvent e) { shell_default.close(); } }); } } }); final TabItem tabItem_default = new TabItem(tabFolder, SWT.NONE); browser_default = new Browser(tabFolder, SWT.NONE); tabItem_default.setControl(browser_default); browser_default.setUrl(homePage);// 显示浏览器首页 /* * 把初始化的标签置顶,选中 */ tabFolder.setSelection(tabItem_default); } /* * 创建浏览器底部状态栏,不包括相关事件监听 */ private void createStatus() { composite_status = new Composite(shell_default, SWT.NONE); final GridData gd_composite = new GridData(SWT.FILL, SWT.FILL, true, false);// 参数true使状态栏可以自动水平伸缩 gd_composite.heightHint = 20; gd_composite.widthHint = 367; composite_status.setLayoutData(gd_composite); GridLayout gl_composite = new GridLayout(); gl_composite.numColumns = 2; gl_composite.marginBottom = 5; composite_status.setLayout(gl_composite); label_status = new Label(composite_status, SWT.NONE); GridData gd_status = new GridData(SWT.FILL, SWT.CENTER, true, false); gd_status.heightHint = 13; gd_status.widthHint = 525; label_status.setLayoutData(gd_status); progressBar_status = new ProgressBar(composite_status, SWT.BORDER | SWT.SMOOTH); progressBar_status.setLayoutData(new GridData(80, 12)); progressBar_status.setVisible(false);// 打开过程初始不可见 } private void runThread( ) { /* * 浏览器新标签前进、后退按钮的默认可用性为不可用 */ button_back.setEnabled(false); button_forward.setEnabled(false); /* * 获取浏览器的当前标签和功能Browser */ tabItem_now=tabFolder.getItem(tabFolder.getSelectionIndex()); browser_now=(Browser) tabItem_now.getControl(); /* * 选中事件发生时,修改当前浏览器标签 */ tabFolder.addSelectionListener(new SelectionAdapter(){ @Override public void widgetSelected(SelectionEvent e) { TabItem temp=(TabItem) e.item; if(temp!=tabItem_now){//防止重选一个标签,预防多次触发相同事件 tabItem_now=temp; browser_now=(Browser)tabItem_now.getControl(); //System.out.println("当前标签被修改了");//调试语句 /* * 在相应的标签中,前进、后退按钮可用性是不一样的 */ if(browser_now.isBackEnabled()){//后退按钮的可用性 button_back.setEnabled(true); }else{ button_back.setEnabled(false); } if(browser_now.isForwardEnabled()){//前进按钮的可用性 button_forward.setEnabled(true); }else{ button_forward.setEnabled(false); } } } }); /* * 添加浏览器的后退、向前、前进、停止按钮事件监听 */ button_back.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent arg0) { if (browser_now.isBackEnabled()){//本次可后退 browser_now.back(); button_forward.setEnabled(true);//下次可前进,前进按钮可用 //System.out.println("可后退");//调试语句 } if(!browser_now.isBackEnabled()){//下次不可后退,后退按钮不可用 button_back.setEnabled(false); } } }); button_forward.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent arg0) { if (browser_now.isForwardEnabled()){//本次可前进 browser_now.forward(); button_back.setEnabled(true);//后退按钮可用 //System.out.println("可向前");//调试语句 } if(!browser_now.isForwardEnabled()){//下次不可前进,前进按钮不可用 button_forward.setEnabled(false); } } }); button_stop.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent arg0) { browser_now.stop(); } }); combo_address.addKeyListener(new KeyAdapter() {// 手动输入地址栏后,按回车键转到相应网址 @Override public void keyReleased(KeyEvent e) { if (e.keyCode == SWT.CR) {//回车键触发事件 browser_now.setUrl(combo_address.getText()); } } }); /* * 1>在addOpenWindowListener()下的open()写入e.browser = browser_new情况下,导入新的超级链接, * 只有当点击页面上的链接,且链接不在新的页面打开时才会发生. * 2>在addOpenWindowListener()下的open()不写入e.browser = browser_new情况下,导入新的超级链接, * 只有当点击页面上的链接,且链接在新的页面打开时才会发生. * 除了以上两种外,当然还包括browser.back()、browser.forward()、browser.go()、browser.setUrl()发生时触发, * 但changing()在不写入e.browser = browser_new情况下,不被browser.setUrl()触发 */ browser_now.addLocationListener(new LocationAdapter() { @Override public void changing(LocationEvent e) {// 表示超级链接地址改变了 if(openNewItem==false){//新的页面在同一标签中打开 button_back.setEnabled(true);//后退按钮可用,此句是后退按钮可用判定的逻辑开始点 } //System.out.println("location_changing");// 调试语句 } @Override public void changed(LocationEvent e) {// 找到了页面链接地址 combo_address.setText(e.location);// 改变链接地址显示 /* * 新的页面已经打开,browser的LocationListener已经监听完毕,openNewItem回复默认值 */ if(openNewItem==true){ openNewItem=false; } //System.out.println("location_changed");// 调试语句 } }); /* * 新的超级链接页面的导入的百分比,在导入新的页面时发生,此时链接地址已知 */ browser_now.addProgressListener(new ProgressAdapter() { @Override public void changed(ProgressEvent e) {//本事件不断发生于页面的导入过程中 progressBar_status.setMaximum(e.total);// e.total表示从最开始页面到最终页面的数值 progressBar_status.setSelection(e.current); if (e.current != e.total) {//页面还没完全导入 loadCompleted = false; progressBar_status.setVisible(true);// 页面的导入情况栏可见 } else { loadCompleted = true; progressBar_status.setVisible(false);// 页面导入情况栏不可见 } //System.out.println("progress_changed");//调试语句 } @Override public void completed(ProgressEvent arg0) {//发生在一次导入页面时,本监听器changed事件最后一次发生之前 //System.out.println("progress_completed");//调试语句 } }); /* * 获取页面内容过程,文字显示addProgressListener()过程,同时还能检测到已打开页面的存在的超级链接,就是用给功能来获取 * 新的链接地址的 */ browser_now.addStatusTextListener(new StatusTextListener() { public void changed(StatusTextEvent e) { if (loadCompleted == false) { label_status.setText(e.text); } else { newUrl = e.text;//页面导入完成,捕捉页面上可能打开的链接 } //System.out.println("statusText_changed");//调试语句 } }); /* * 显示页面的提示语句,在新的页面导入时发生 */ browser_now.addTitleListener(new TitleListener() { public void changed(TitleEvent e) { shell_default.setText(e.title); if (e.title.length() > 3) {//显示当前页面提示字符在标签上 tabItem_now.setText(e.title.substring(0, 3) + ".."); } else { tabItem_now.setText(e.title); } tabItem_now.setToolTipText(e.title);//标签显示提示符 } }); /* * 打开新的页面,当前打开页面新的链接需要在新的窗口页面打开时发生.addOpenWindowListener下open()中的一句 * e.browser = browser_new;关键部分.联系addOpenWindowListener、addVisibilityWindowListener * 和addDisposeListener的值传递枢纽 */ browser_now.addOpenWindowListener(new OpenWindowListener() {// 在当前页面中打开点击的链接页面 public void open(WindowEvent e) { Browser browser_new = new Browser(tabFolder, SWT.NONE); TabItem tabItem_new = new TabItem(tabFolder, SWT.NONE); tabItem_new.setControl(browser_new); tabFolder.setSelection(tabItem_new);//新打开的页面标签置顶 tabFolder.redraw();//刷新容器 browser_new.setUrl(newUrl);//新标签中设置新的链接地址 openNewItem=true;//新的页面在新的标签中打开 /* * 关键部分,告知新的页面由browser_new打开,只要实现这句就不会弹出操作系统默认的浏览器了 */ e.browser = browser_new; //System.out.println("OpenWindowListener_open");//调试语句 /* * 为浏览器新的标签添加事件监听 */ display.syncExec(new Runnable(){ public void run() { runThread(); } }); } }); /* * 浏览器关闭事件,关闭当前功能浏览器,不然的话浏览器主窗口关闭了,还有进程在运行 */ browser_now.addCloseWindowListener(new CloseWindowListener(){ public void close(WindowEvent e) { browser_now.dispose(); } }); } }
原文地址:http://blog.csdn.net/springmvc_springdata/article/details/40451509