关于在JTextPane(或JEditorPane)中返回文本部分(Text)

//返回消息框的无格式文本content是一个JTextPane元件
public String getContentPlainText()
{
   StringBuffer text=new StringBuffer();
  
   Document   doc   =   content.getDocument(); 
   Element   root   =   doc.getDefaultRootElement(); 
  
   int count=root.getElementCount();
  
   for(int i=0;i<count;i++)
   {
    Element   para   =   root.getElement(i); 
    int   start   =   para.getStartOffset(); 
          int   end   =   para.getEndOffset();
         
          try
          {
           text.append(doc.getText(start,   end   -   start)); 
          }
          catch(Exception err)
          {
           err.printStackTrace();
          }
   }

   System.out.println("text:" + text);
  
         return text.toString();

}