如果f1是参数时:
<a href="kk.jsp?f1=<%=f1%>&f2=<%=f2%>&f3=<%=f3%>">kk</a>
String str1=request.getParameter("f1");就得到了传过来的值!
String str2=request.getParameter("f2");
String str3=request.getParameter("f3");
String sql="slelect * from table where colunm1=str1 and column2=str2 and cloumn3=str3";