关于#的传值问题,大家帮忙看下

大家帮个忙看看，这段代码temp3是一个含有#的字符串，传值的时候老出毛病：
 while(rs.next())
       { out.print("<TR>");
         String temp1=rs.getString("sort_number");
 String temp2=rs.getString("e_name");
 String temp3=rs.getString("e_size");
 
 String temp4=rs.getString("unit");
 String temp5=rs.getString("amount");
 String temp6=rs.getString("location");
                         out.print("<TD >"+temp1+"</TD>");
                         out.print("<TD >"+temp2+"</TD>"); 
                         out.print("<TD >"+temp3+"</TD>");
 out.print("<TD >"+temp4+"</TD>");
 out.print("<TD >"+temp5+"</TD>");
 out.print("<TD >"+temp6+"</TD>");
 out.print("<TD ><a href='zhuan1.jsp?sort_number1="+temp1+"&&e_name1="+temp2+"&&e_size1="+temp3+"&&unit1="+temp4+"&&amount1="+temp5+"&&location1="+temp6+"'>确定</a></TD>");    
        out.print("</TR>") ; 
         
        }出的错误：
java.lang.NullPointerException
org.apache.jsp.send1_jsp._jspService(send1_jsp.java:308)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802我找找了说是带有#的字符串用？的传值方法好像传不过去，大家有什么好的办法吗？小弟新学，请高手指点下，谢谢！