java报错MalformedURLException: unknown protocol: c

喜欢ヅ旅行 2023-01-02 14:25 144阅读 0赞

## java报错：MalformedURLException: unknown protocol: c ##

## 1. 报错情况： ##

部分代码：

//打开图片
      path="C:/Users/MyUser/image.jpg"	
      openPictrues(path);
      
      public void openPictures(String path,String picName) throws IOException { 
            FXMLLoader root = new FXMLLoader(getClass().getResource("imageBar.fxml"));
            AnchorPane load = root.load();
            Tab tab3 = new Tab(picName);
            tab3.setContent(load);
            tabPane.getTabs().add(tab3);
             tabPane.getSelectionModel().select(tab3);
            tabPane.setVisible(true);
    
            imageBar1 picController = root.getController();
            picController.loadImage(path);
        }

## 2. 解决办法： ##

需要在路径前面添加`file:///`

String imageUrl = "file:///C:/Users/MyUser/image.jpg";

否则就会报错，出现协议错误，具体的原因的话还不是很清楚背后的原理

//修改的关键语句
    openPictrues("file:///"+path);

//打开图片
      path="C:/Users/MyUser/image.jpg"	
      openPictrues("file:///"+path);
      
      public void openPictures(String path,String picName) throws IOException { 
            FXMLLoader root = new FXMLLoader(getClass().getResource("imageBar.fxml"));
            AnchorPane load = root.load();
            Tab tab3 = new Tab(picName);
            tab3.setContent(load);
            tabPane.getTabs().add(tab3);
             tabPane.getSelectionModel().select(tab3);
            tabPane.setVisible(true);
    
            imageBar1 picController = root.getController();
            picController.loadImage(path);
        }