无需创建自定义渲染器. JTable allready支持包含Icon的列的默认渲染器.您需要做的就是重写您似乎正在执行的getColumnClass()方法.

There is no need to create a custom renderer. JTable allready supports a default renderer for columns containing an Icon. All you need to do is override the getColumnClass() method, which you appear to be doing.