调好了新建标签页按钮

src/main/java/cn/minbrowser/util/ConnectTestUtil.java

@@ -0,0 +1,20 @@
+package cn.minbrowser.util;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class ConnectTestUtil {
+    protected static int Timeout = 2000;
+    public static int Request(String request){
+        try{
+            URL url = new URL(request);
+            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+            connection.setRequestMethod("HEAD");
+            connection.setConnectTimeout(Timeout);
+            connection.setReadTimeout(Timeout);
+            return connection.getResponseCode();
+        }catch (Exception e){
+            return 404;
+        }
+    }
+}

src/main/java/cn/minbrowser/view/NavigationBarController.java

@@ -33,6 +33,8 @@ public class NavigationBarController implements Initializable {
     private ImageView userPhoto;
     @FXML
     private ImageView settingPhoto;
+    @FXML
+    private Button addTabButton;
 
     private final Double tabHeaderWidth = 200D;
 
@@ -59,32 +61,48 @@ public class NavigationBarController implements Initializable {
         //在fxml被载入时候被自动调用
         this.userPhoto.setImage(new Image("file:resources/images/user.png"));
         this.settingPhoto.setImage(new Image("file:resources/images/3dot.png"));
-        // 初始化增加标签按钮
-        Button addTabBtn=new Button("++++++++++++++++++");
-        addTabBtn.setVisible(true);
         // 设置tabpane中tab的最大宽度
         tabPane.setTabMaxWidth(tabHeaderWidth);
         // 加载标签
-        tabPane.getTabs().add(new MiniTab(this));
-        tabPane.getSelectionModel().getSelectedItem().setClosable(true);
+       iniTab();
         // 设置标签监听
-//        tabPane.getTabs().addListener((ListChangeListener.Change<? extends Tab> c) -> {
-//            // 如果tab全部关闭，就退出系统
-//            int size = c.getList().size();
-//            if (size == 0) {
-//                Platform.exit();
-//            }
-//            // 根据tabpane的个数变换AddTabBtn的位置
-//            Double width = tabPane.getScene().getWidth();
-//            Double left = tabHeaderWidth * size + (size - 1) * 12D + 20D;
-//            if (left - 80D > width) {
-//                left = width - 80D;
-//                tabPane.setTabMinWidth(5D);
-//            } else if (left < width - tabHeaderWidth) {
-//                tabPane.setTabMinWidth(tabHeaderWidth);
-//            }
-//            AnchorPane.setLeftAnchor(addTabBtn, left);
-//        });
+        setTabPaneListener();
+    }
+
+    /**
+     * 初次加载标签（主页标签）
+     */
+    private void iniTab(){
+        tabPane.getTabs().add(new MiniTab(this));
+        AnchorPane.setLeftAnchor(addTabButton,175D);
+        addTabButton.setOnAction((event) -> {
+            MiniTab mt = new MiniTab(this);
+            tabPane.getTabs().add(mt);
+            tabPane.getSelectionModel().select(mt);
+        });
+    }
+
+    /**
+     * 设置标签监听
+     */
+    private void setTabPaneListener(){
+        tabPane.getTabs().addListener((ListChangeListener.Change<? extends Tab> c) -> {
+            // 如果tab全部关闭，就退出系统
+            int size = c.getList().size();
+            if (size == 0) {
+                System.exit(0);
+            }
+            // 根据tabpane的个数变换AddTabBtn的位置
+            Double width = tabPane.getScene().getWidth();
+            Double left = tabHeaderWidth * size + (size - 1) * 16D + 25D;
+            if (left - 80D > width) {
+                left = width - 80D;
+                tabPane.setTabMinWidth(5D);
+            } else if (left < width - tabHeaderWidth) {
+                tabPane.setTabMinWidth(tabHeaderWidth);
+            }
+            AnchorPane.setLeftAnchor(addTabButton, left);
+        });
     }
 
     /**

src/main/java/cn/minbrowser/view/minibrowser/MiniTab.java

@@ -1,6 +1,7 @@
 package cn.minbrowser.view.minibrowser;
 
 import cn.minbrowser.protocol.util.MinUrlUtil;
+import cn.minbrowser.util.ConnectTestUtil;
 import cn.minbrowser.util.FilePermissionUtil;
 import cn.minbrowser.view.MainPageHTMLController;
 import cn.minbrowser.view.NavigationBarController;
@@ -120,8 +121,12 @@ public class MiniTab extends Tab {
                 // min协议加载
                 webview.getEngine().load(url);
             } else {
-                // http及其它通用网络协议的加载
-                webview.getEngine().load(url);
+               if(ConnectTestUtil.Request(url)==404){
+                   showErrorPage();
+               }else{
+                   // http及其它通用网络协议的加载
+                   webview.getEngine().load(url);
+               }
             }
         });
     }
@@ -198,8 +203,6 @@ public class MiniTab extends Tab {
             showLoginPage();
         }else if(url.equals(REGISTER_URL) || url.equals(REGISTER_SHOW_URL)){
             showRegisterPage();
-        }else if(url.equals(ERROR_URL)){
-            showErrorPage();
         }else {
             load(url);
         }
@@ -324,6 +327,8 @@ public class MiniTab extends Tab {
                 || url.equals(INDEX_SHOW_URL)){
             input.setText(INDEX_SHOW_URL);
             showUsernameByListenEngineState();
+        }else if(url.contains("resources/html/InfoUtil/error.html")){
+            input.setText(ERROR_URL);
         }else {
             try {
                 input.setText(URLDecoder.decode(url, "UTF-8"));

src/main/resources/fxml/NavigationBarOverviewV2.fxml

@@ -26,5 +26,6 @@
          </image>
       </ImageView>
       <Button fx:id="settingButton" mnemonicParsing="false" onAction="#showNewSettingInfo" opacity="0.0" prefHeight="40.0" prefWidth="30.0" text="S" AnchorPane.rightAnchor="18.0" AnchorPane.topAnchor="41.0" />
+      <Button fx:id="addTabButton" mnemonicParsing="false" text="+" AnchorPane.leftAnchor="10.0" AnchorPane.topAnchor="8.0" />
    </children>
 </AnchorPane>