Jtable添加图片，并自由改变图片大小

以你之姓@ 2022-08-28 11:55 206阅读 0赞

需要重写方法

1、jtable中部分代码。。主要看图片处理的部分

public JPanel getBookPanel(Vector<Book> bookList) throws IOException {
    		Vector<String> title = new Vector<String>();// 列名
    		title.add("书图");
    		title.add("isbn");
    		title.add("书名");
    		title.add("书类型");
    		title.add("单价");
    		title.add("出版社");
    		title.add("作者");
    		Vector<Vector<Object>> data = new Vector<Vector<Object>>();
    		for (int i = 0; i < bookList.size(); i++) {
    			Vector<Object> v = new Vector<Object>();
    			Book b = bookList.get(i);
    			ImageIcon icon = new ImageIcon("images/" + b.getBookImage());//图片处理
    			icon.setImage(icon.getImage().getScaledInstance(80,100,Image.SCALE_DEFAULT));
    		    Image  img = icon.getImage();
    			v.add(img);
    			v.add(b.getIsbn());
    			v.add(b.getBookName());
    			v.add(b.getBookType());
    			v.add(b.getPrice());
    			v.add(b.getPublish());
    			v.add(b.getAuthor());
    			data.add(v);
    		}
    		model = new DefaultTableModel(data, title);
    		table = new JTable(model);
    		  table.getTableHeader().setReorderingAllowed(false);   //不可整列移动   
    		  table.getTableHeader().setResizingAllowed(false); 
    		
    		table.getColumnModel().getColumn(0)
    				.setCellRenderer(new ImageRenderer());
    		table.setRowHeight(100);

2、ImageRenderer类

package com.seven.view;
    
    import java.awt.BorderLayout;
    import java.awt.Component;
    import java.awt.Image;
    import java.io.File;
    import java.io.IOException;
    
    import javax.imageio.ImageIO;
    import javax.swing.ImageIcon;
    import javax.swing.JLabel;
    import javax.swing.JTable;
    import javax.swing.table.TableCellRenderer;
    
    public class ImageRenderer implements TableCellRenderer
    {
    
    	  @SuppressWarnings("unchecked")
    	  @Override
    	  public Component getTableCellRendererComponent(
    	          JTable table, Object value, boolean isSelected, 
    	          boolean hasFocus, int rowIndex, int columnIndex) {
    	    
    	    if( value instanceof Image ){
    	    	JLabel jLabel = new JLabel();
    	    	jLabel.setLayout(new BorderLayout());//设置布局
    	    	jLabel.setIcon(new ImageIcon((Image)value));//给jlable设置图片
    	      return jLabel;
    	    }
    	    
    	    else if( value instanceof File ) {
    	      try {
    	        return new JLabel(new ImageIcon(ImageIO.read((File)value)));
    	      } catch(IOException ex) {
    	        throw new RuntimeException(ex.getMessage(), ex);
    	      }
    	    }
    	    
    	    else {
    	      String val = String.valueOf(value);
    	      try {
    	        return new JLabel(new ImageIcon(ImageIO.read(new File(val))));
    	      } catch(IOException ex) {
    	        throw new RuntimeException(ex.getMessage(), ex);
    	      }
    	    }
    	  }
    	}