稀奇古怪的问题！关于request
我在一个类中声明一个HttpServletRequest   request属性;
该类中包含setRequest(HttpServletRequest   req){
      this.request=req;
}
有个输出的方法   在里面用request.getParameter( "属性名 ")获得到的值是NULL
但是在setRequest中使用req.getParameter( "属性名 ")就能获得到值;
PS：2个属性名完全一样

为什么会这样？
期待解答

我把代码帖出来   大家看看
这个是那个调用定时器任务的servlet
package   myServlet;

import   java.io.IOException;
import   java.io.PrintWriter;
import   java.util.Timer;

import   javax.servlet.ServletException;
import   javax.servlet.http.HttpServlet;
import   javax.servlet.http.HttpServletRequest;
import   javax.servlet.http.HttpServletResponse;

import   myClass.myTimerTask;

public   class   ActionServlet   extends   HttpServlet   {

/**
  *   Constructor   of   the   object.
  */
public   ActionServlet()   {
super();
}

/**
  *   Destruction   of   the   servlet.   <br>
  */
public   void   destroy()   {
super.destroy();   //   Just   puts   "destroy "   string   in   log
//   Put   your   code   here
}

/**
  *   The   doGet   method   of   the   servlet.   <br>
  *
  *   This   method   is   called   when   a   form   has   its   tag   value   method   equals   to   get.
  *  
  *   @param   request   the   request   send   by   the   client   to   the   server
  *   @param   response   the   response   send   by   the   server   to   the   client
  *   @throws   ServletException   if   an   error   occurred
  *   @throws   IOException   if   an   error   occurred
  */
public   void   doGet(HttpServletRequest   request,   HttpServletResponse   response)
throws   ServletException,   IOException   {
String   url=request.getParameter( "url ");
String   fid=request.getParameter( "fid ");
String   tid=request.getParameter( "tid ");
int   interval=Integer.parseInt(request.getParameter( "interval "));
String   content=request.getParameter( "content ");
String   type=new   String(request.getParameter( "type ").getBytes( "ISO-8859-1 "), "gbk ");
String   forwardUrl=url+ "?step=2&action=reply&editor=0&atc_attachment=none&fid= "+fid+ "&tid= "+tid+ "&atc_content= "+content+ " ";
Timer   myTimer=new   Timer(true);
if(type.equals( "开始 ")){
myTimerTask   test=new   myTimerTask();
test.setRequest(request);
myTimer.schedule(test,   0,   interval*1000);
}