目录递归 此程序将目录下的所有文件删除。。
你改一下就行
package untitled2; 
import java.io.*; //cfan 2003/3/18 public class Untitled1 {  public static void main(String[] args){ 
   SearchDir DD =  new SearchDir(); 
   DD.SearchDirOk("C:/JBuilder7/jakarta-tomcat-4.0.3/webapps/jfrb3_18/temp") ; 
 } 
} class SearchDir{ 
       public SearchDir(){}; 
       public void  SearchDirOk(String Dir){ 
               File tempFolder = new File(Dir); 
               System.out.println(Dir); 
               String fileList[] =tempFolder.list(); 
               for (int i = 0;i < fileList.length;i++){ 
              File tempSubFolder = new File(Dir+"/"+fileList); 
                  if (tempSubFolder.isDirectory()){ 
                       this.SearchDirOk(Dir+"/"+fileList); 
                       } 
                       else {tempSubFolder.delete();} 
               }                                tempFolder.delete();                } 
}