public boolean init(HttpServletRequest request,
    int currentPage,
    int pageSize,
    String sql) {    this.PageUrl = request.getRequestURI();
    this.SQL = sql;
   
    this.pageSize=((request.getParameter("pageSize")!=null)?Integer.parseInt(request.getParameter("pageSize")):pageSize);
    this.currentPage=(request.getParameter("currentPage")!=null)?Integer.parseInt(request.getParameter("currentPage")):currentPage;
    return  this.init(this.currentPage,this.pageSize,sql);  }我在分页中这样结的request.getRequestURI();