求救!求救!jspsmartupload上传不上去了!

 jspsmartupload上传不上去了!
 

 

选择文件,输入信息,一选择上传,就出现以下错误:
 

org.apache.jasper.JasperException: Exception in JSP: /b.jsp:45

42: 

43: su.initialize(pageContext); 

44: su.upload(); 

45: String title=su.Request().getParameter("title"); 

46: String Remark=su.Request().getParameter("Remark");

47: 

48: 

Stacktrace:

    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:504)

    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)

    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)

root cause 

java.lang.NullPointerException

    org.apache.jsp.b_jsp._jspService(b_jsp.java:95)

    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)