我正在尝试将图像从 mysql 数据库添加到 jTable。但它显示了下图中给出的一些文本

Question

尝试科学早晨。

但没有成功。

我发布的代码可能有问题请帮助我。

这是输出。它显示此文本而不是图像。

TheModel.java javaclass --->（我认为问题出在这里）。

package junk.yard.management.creative.system;

public class TheModel extends AbstractTableModel {

    private String[] columns;
    private Object[][] rows;

    public TheModel() {
    }

    public TheModel(Object[][] data, String[] columnName) {

        this.rows = data;
        this.columns = columnName;
    }

    @Override
    public Class getColumnClass(int column) {
// 4 is the index of the column image
        if (column == 3) {
            return Icon.class;

        } else {
            return getValueAt(0, column).getClass();
        }
    }

    @Override
    public int getRowCount() {
        return this.rows.length;
    }

    @Override
    public int getColumnCount() {
        return this.columns.length;
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {

        return this.rows[rowIndex][columnIndex];
    }

    @Override
    public String getColumnName(int col) {
        return this.columns[col];
    }

}

Jframe 中的代码 -->（我认为问题出在这里）.......

 public void populateJTable(){
        MyQuery mq = new MyQuery();
        ArrayList<Product2> list = mq.BindTable();
        String[] columnName = {"Sr. No.","Name","Type","Image"};
        Object[][] rows = new Object[list.size()][4];
        for(int i = 0; i < list.size(); i++){      
            if(list.get(i).getMyImage() != null){
                rows[i][0] = list.get(i).getID();
            rows[i][1] = list.get(i).getName();
            rows[i][2] = list.get(i).getType();
             javax.swing.ImageIcon image = new javax.swing.ImageIcon(new javax.swing.ImageIcon(list.get(i).getMyImage()).getImage()
             .getScaledInstance(180, 180, Image.SCALE_SMOOTH) );   
                
            rows[i][3] = image;
            }
            else{
                rows[i][3] = null;
            }
            
        }
        
        TheModel model = new TheModel(rows, columnName);
        jTable1.setModel(model);
        jTable1.setRowHeight(180);
        jTable1.getColumnModel().getColumn(3).setPreferredWidth(180);
    } 

这是我的 jTable 设计代码。 DarkTable.java javaclass --->

package tabledark;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.util.HashMap;
import java.util.Map;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableCellRenderer;

public class TableDark extends JTable {

    private TableDarkHeader header;
    private TableDarkCell cell;

    public TableDark() {
        header = new TableDarkHeader();
        cell = new TableDarkCell();
        getTableHeader().setDefaultRenderer(header);
        getTableHeader().setPreferredSize(new Dimension(0, 35));
        setDefaultRenderer(Object.class, cell);
        setRowHeight(40);
    }

    public void setColumnAlignment(int column, int align) {
        header.setAlignment(column, align);
    }

    public void setCellAlignment(int column, int align) {
        cell.setAlignment(column, align);
    }

    public void setColumnWidth(int column, int width) {
        getColumnModel().getColumn(column).setPreferredWidth(width);
        getColumnModel().getColumn(column).setMinWidth(width);
        getColumnModel().getColumn(column).setMaxWidth(width);
        getColumnModel().getColumn(column).setMinWidth(10);
        getColumnModel().getColumn(column).setMaxWidth(10000);
    }

    public void fixTable(JScrollPane scroll) {
        scroll.setVerticalScrollBar(new ScrollBarCustom());
        JPanel panel = new JPanel();
        panel.setBackground(new Color(30, 30, 30));
        scroll.setCorner(JScrollPane.UPPER_RIGHT_CORNER, panel);
        scroll.getViewport().setBackground(new Color(30, 30, 30));
        scroll.setBorder(BorderFactory.createLineBorder(new Color(60, 60, 60), 2));
    }

    private class TableDarkHeader extends DefaultTableCellRenderer {

        private Map<Integer, Integer> alignment = new HashMap<>();

        public void setAlignment(int column, int align) {
            alignment.put(column, align);
        }

        @Override
        public Component getTableCellRendererComponent(JTable jtable, Object o, boolean bln, boolean bln1, int i, int i1) {
            Component com = super.getTableCellRendererComponent(jtable, o, bln, bln1, i, i1);
            com.setBackground(new Color(30, 30, 30));
            com.setForeground(new Color(200, 200, 200));
            com.setFont(com.getFont().deriveFont(Font.BOLD, 25));
            if (alignment.containsKey(i1)) {
                setHorizontalAlignment(alignment.get(i1));
            } else {
                setHorizontalAlignment(JLabel.LEFT);
            }
            return com;
        }
    }

    private class TableDarkCell extends DefaultTableCellRenderer {

        private Map<Integer, Integer> alignment = new HashMap<>();

        public void setAlignment(int column, int align) {
            alignment.put(column, align);
        }

        @Override
        public Component getTableCellRendererComponent(JTable jtable, Object o, boolean bln, boolean bln1, int row, int column) {
            Component com = super.getTableCellRendererComponent(jtable, o, bln, bln1, row, column);
            if (isCellSelected(row, column)) {
                if (row % 2 == 0) {
                    com.setBackground(new Color(33, 103, 153));
                } else {
                    com.setBackground(new Color(29, 86, 127));
                }
            } else {
                if (row % 2 == 0) {
                    com.setBackground(new Color(50, 50, 50));
                } else {
                    com.setBackground(new Color(30, 30, 30));
                }
            }
            com.setForeground(new Color(200, 200, 200));
            setBorder(new EmptyBorder(0, 5, 0, 5));
            if (alignment.containsKey(column)) {
                setHorizontalAlignment(alignment.get(column));
            } else {
                setHorizontalAlignment(JLabel.LEFT);
            }
            return com;
        }
    }
}

我觉得问题出在这里请看

 @Override
        public Component getTableCellRendererComponent(JTable jtable, Object o, boolean bln, boolean bln1, int row, int column) {
            Component com = super.getTableCellRendererComponent(jtable, o, bln, bln1, row, column);
            if (isCellSelected(row, column)) {
                if (row % 2 == 0) {
                    com.setBackground(new Color(33, 103, 153));
                } else {
                    com.setBackground(new Color(29, 86, 127));
                }
            } else {
                if (row % 2 == 0) {
                    com.setBackground(new Color(50, 50, 50));
                } else {
                    com.setBackground(new Color(30, 30, 30));
                }
            }
            com.setForeground(new Color(200, 200, 200));
            setBorder(new EmptyBorder(0, 5, 0, 5));
            if (alignment.containsKey(column)) {
                setHorizontalAlignment(alignment.get(column));
            } else {
                setHorizontalAlignment(JLabel.LEFT);
            }
            return com;
        }
    }